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3316 lines
93 KiB
3316 lines
93 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Self tests for device tree subsystem |
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*/ |
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|
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#define pr_fmt(fmt) "### dt-test ### " fmt |
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|
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#include <linux/memblock.h> |
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#include <linux/clk.h> |
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#include <linux/dma-direct.h> /* to test phys_to_dma/dma_to_phys */ |
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#include <linux/err.h> |
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#include <linux/errno.h> |
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#include <linux/hashtable.h> |
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#include <linux/libfdt.h> |
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#include <linux/of.h> |
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#include <linux/of_address.h> |
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#include <linux/of_fdt.h> |
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#include <linux/of_irq.h> |
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#include <linux/of_platform.h> |
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#include <linux/list.h> |
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#include <linux/mutex.h> |
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#include <linux/slab.h> |
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#include <linux/device.h> |
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#include <linux/platform_device.h> |
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#include <linux/kernel.h> |
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|
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#include <linux/i2c.h> |
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#include <linux/i2c-mux.h> |
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#include <linux/gpio/driver.h> |
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|
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#include <linux/bitops.h> |
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|
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#include "of_private.h" |
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|
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static struct unittest_results { |
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int passed; |
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int failed; |
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} unittest_results; |
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|
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#define unittest(result, fmt, ...) ({ \ |
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bool failed = !(result); \ |
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if (failed) { \ |
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unittest_results.failed++; \ |
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pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \ |
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} else { \ |
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unittest_results.passed++; \ |
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pr_debug("pass %s():%i\n", __func__, __LINE__); \ |
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} \ |
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failed; \ |
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}) |
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/* |
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* Expected message may have a message level other than KERN_INFO. |
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* Print the expected message only if the current loglevel will allow |
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* the actual message to print. |
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* |
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* Do not use EXPECT_BEGIN() or EXPECT_END() for messages generated by |
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* pr_debug(). |
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*/ |
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#define EXPECT_BEGIN(level, fmt, ...) \ |
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printk(level pr_fmt("EXPECT \\ : ") fmt, ##__VA_ARGS__) |
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|
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#define EXPECT_END(level, fmt, ...) \ |
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printk(level pr_fmt("EXPECT / : ") fmt, ##__VA_ARGS__) |
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static void __init of_unittest_find_node_by_name(void) |
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{ |
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struct device_node *np; |
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const char *options, *name; |
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np = of_find_node_by_path("/testcase-data"); |
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name = kasprintf(GFP_KERNEL, "%pOF", np); |
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unittest(np && !strcmp("/testcase-data", name), |
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"find /testcase-data failed\n"); |
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of_node_put(np); |
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kfree(name); |
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|
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/* Test if trailing '/' works */ |
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np = of_find_node_by_path("/testcase-data/"); |
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unittest(!np, "trailing '/' on /testcase-data/ should fail\n"); |
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np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
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name = kasprintf(GFP_KERNEL, "%pOF", np); |
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unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name), |
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"find /testcase-data/phandle-tests/consumer-a failed\n"); |
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of_node_put(np); |
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kfree(name); |
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|
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np = of_find_node_by_path("testcase-alias"); |
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name = kasprintf(GFP_KERNEL, "%pOF", np); |
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unittest(np && !strcmp("/testcase-data", name), |
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"find testcase-alias failed\n"); |
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of_node_put(np); |
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kfree(name); |
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|
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/* Test if trailing '/' works on aliases */ |
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np = of_find_node_by_path("testcase-alias/"); |
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unittest(!np, "trailing '/' on testcase-alias/ should fail\n"); |
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|
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np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a"); |
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name = kasprintf(GFP_KERNEL, "%pOF", np); |
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unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name), |
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"find testcase-alias/phandle-tests/consumer-a failed\n"); |
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of_node_put(np); |
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kfree(name); |
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|
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np = of_find_node_by_path("/testcase-data/missing-path"); |
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unittest(!np, "non-existent path returned node %pOF\n", np); |
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of_node_put(np); |
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|
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np = of_find_node_by_path("missing-alias"); |
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unittest(!np, "non-existent alias returned node %pOF\n", np); |
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of_node_put(np); |
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np = of_find_node_by_path("testcase-alias/missing-path"); |
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unittest(!np, "non-existent alias with relative path returned node %pOF\n", np); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("/testcase-data:testoption", &options); |
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unittest(np && !strcmp("testoption", options), |
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"option path test failed\n"); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("/testcase-data:test/option", &options); |
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unittest(np && !strcmp("test/option", options), |
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"option path test, subcase #1 failed\n"); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options); |
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unittest(np && !strcmp("test/option", options), |
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"option path test, subcase #2 failed\n"); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("/testcase-data:testoption", NULL); |
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unittest(np, "NULL option path test failed\n"); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("testcase-alias:testaliasoption", |
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&options); |
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unittest(np && !strcmp("testaliasoption", options), |
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"option alias path test failed\n"); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("testcase-alias:test/alias/option", |
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&options); |
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unittest(np && !strcmp("test/alias/option", options), |
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"option alias path test, subcase #1 failed\n"); |
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of_node_put(np); |
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np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL); |
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unittest(np, "NULL option alias path test failed\n"); |
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of_node_put(np); |
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options = "testoption"; |
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np = of_find_node_opts_by_path("testcase-alias", &options); |
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unittest(np && !options, "option clearing test failed\n"); |
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of_node_put(np); |
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options = "testoption"; |
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np = of_find_node_opts_by_path("/", &options); |
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unittest(np && !options, "option clearing root node test failed\n"); |
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of_node_put(np); |
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} |
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static void __init of_unittest_dynamic(void) |
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{ |
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struct device_node *np; |
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struct property *prop; |
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np = of_find_node_by_path("/testcase-data"); |
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if (!np) { |
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pr_err("missing testcase data\n"); |
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return; |
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} |
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/* Array of 4 properties for the purpose of testing */ |
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prop = kcalloc(4, sizeof(*prop), GFP_KERNEL); |
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if (!prop) { |
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unittest(0, "kzalloc() failed\n"); |
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return; |
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} |
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/* Add a new property - should pass*/ |
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prop->name = "new-property"; |
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prop->value = "new-property-data"; |
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prop->length = strlen(prop->value) + 1; |
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unittest(of_add_property(np, prop) == 0, "Adding a new property failed\n"); |
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/* Try to add an existing property - should fail */ |
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prop++; |
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prop->name = "new-property"; |
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prop->value = "new-property-data-should-fail"; |
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prop->length = strlen(prop->value) + 1; |
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unittest(of_add_property(np, prop) != 0, |
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"Adding an existing property should have failed\n"); |
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/* Try to modify an existing property - should pass */ |
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prop->value = "modify-property-data-should-pass"; |
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prop->length = strlen(prop->value) + 1; |
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unittest(of_update_property(np, prop) == 0, |
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"Updating an existing property should have passed\n"); |
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/* Try to modify non-existent property - should pass*/ |
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prop++; |
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prop->name = "modify-property"; |
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prop->value = "modify-missing-property-data-should-pass"; |
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prop->length = strlen(prop->value) + 1; |
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unittest(of_update_property(np, prop) == 0, |
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"Updating a missing property should have passed\n"); |
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/* Remove property - should pass */ |
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unittest(of_remove_property(np, prop) == 0, |
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"Removing a property should have passed\n"); |
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/* Adding very large property - should pass */ |
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prop++; |
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prop->name = "large-property-PAGE_SIZEx8"; |
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prop->length = PAGE_SIZE * 8; |
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prop->value = kzalloc(prop->length, GFP_KERNEL); |
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unittest(prop->value != NULL, "Unable to allocate large buffer\n"); |
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if (prop->value) |
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unittest(of_add_property(np, prop) == 0, |
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"Adding a large property should have passed\n"); |
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} |
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static int __init of_unittest_check_node_linkage(struct device_node *np) |
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{ |
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struct device_node *child; |
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int count = 0, rc; |
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for_each_child_of_node(np, child) { |
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if (child->parent != np) { |
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pr_err("Child node %pOFn links to wrong parent %pOFn\n", |
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child, np); |
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rc = -EINVAL; |
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goto put_child; |
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} |
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rc = of_unittest_check_node_linkage(child); |
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if (rc < 0) |
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goto put_child; |
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count += rc; |
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} |
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return count + 1; |
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put_child: |
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of_node_put(child); |
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return rc; |
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} |
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static void __init of_unittest_check_tree_linkage(void) |
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{ |
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struct device_node *np; |
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int allnode_count = 0, child_count; |
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if (!of_root) |
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return; |
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for_each_of_allnodes(np) |
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allnode_count++; |
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child_count = of_unittest_check_node_linkage(of_root); |
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unittest(child_count > 0, "Device node data structure is corrupted\n"); |
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unittest(child_count == allnode_count, |
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"allnodes list size (%i) doesn't match sibling lists size (%i)\n", |
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allnode_count, child_count); |
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pr_debug("allnodes list size (%i); sibling lists size (%i)\n", allnode_count, child_count); |
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} |
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static void __init of_unittest_printf_one(struct device_node *np, const char *fmt, |
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const char *expected) |
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{ |
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unsigned char *buf; |
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int buf_size; |
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int size, i; |
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buf_size = strlen(expected) + 10; |
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buf = kmalloc(buf_size, GFP_KERNEL); |
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if (!buf) |
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return; |
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/* Baseline; check conversion with a large size limit */ |
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memset(buf, 0xff, buf_size); |
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size = snprintf(buf, buf_size - 2, fmt, np); |
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/* use strcmp() instead of strncmp() here to be absolutely sure strings match */ |
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unittest((strcmp(buf, expected) == 0) && (buf[size+1] == 0xff), |
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"sprintf failed; fmt='%s' expected='%s' rslt='%s'\n", |
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fmt, expected, buf); |
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/* Make sure length limits work */ |
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size++; |
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for (i = 0; i < 2; i++, size--) { |
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/* Clear the buffer, and make sure it works correctly still */ |
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memset(buf, 0xff, buf_size); |
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snprintf(buf, size+1, fmt, np); |
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unittest(strncmp(buf, expected, size) == 0 && (buf[size+1] == 0xff), |
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"snprintf failed; size=%i fmt='%s' expected='%s' rslt='%s'\n", |
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size, fmt, expected, buf); |
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} |
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kfree(buf); |
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} |
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static void __init of_unittest_printf(void) |
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{ |
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struct device_node *np; |
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const char *full_name = "/testcase-data/platform-tests/test-device@1/dev@100"; |
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char phandle_str[16] = ""; |
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np = of_find_node_by_path(full_name); |
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if (!np) { |
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unittest(np, "testcase data missing\n"); |
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return; |
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} |
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num_to_str(phandle_str, sizeof(phandle_str), np->phandle, 0); |
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of_unittest_printf_one(np, "%pOF", full_name); |
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of_unittest_printf_one(np, "%pOFf", full_name); |
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of_unittest_printf_one(np, "%pOFn", "dev"); |
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of_unittest_printf_one(np, "%2pOFn", "dev"); |
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of_unittest_printf_one(np, "%5pOFn", " dev"); |
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of_unittest_printf_one(np, "%pOFnc", "dev:test-sub-device"); |
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of_unittest_printf_one(np, "%pOFp", phandle_str); |
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of_unittest_printf_one(np, "%pOFP", "dev@100"); |
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of_unittest_printf_one(np, "ABC %pOFP ABC", "ABC dev@100 ABC"); |
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of_unittest_printf_one(np, "%10pOFP", " dev@100"); |
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of_unittest_printf_one(np, "%-10pOFP", "dev@100 "); |
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of_unittest_printf_one(of_root, "%pOFP", "/"); |
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of_unittest_printf_one(np, "%pOFF", "----"); |
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of_unittest_printf_one(np, "%pOFPF", "dev@100:----"); |
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of_unittest_printf_one(np, "%pOFPFPc", "dev@100:----:dev@100:test-sub-device"); |
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of_unittest_printf_one(np, "%pOFc", "test-sub-device"); |
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of_unittest_printf_one(np, "%pOFC", |
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"\"test-sub-device\",\"test-compat2\",\"test-compat3\""); |
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} |
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struct node_hash { |
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struct hlist_node node; |
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struct device_node *np; |
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}; |
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static DEFINE_HASHTABLE(phandle_ht, 8); |
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static void __init of_unittest_check_phandles(void) |
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{ |
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struct device_node *np; |
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struct node_hash *nh; |
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struct hlist_node *tmp; |
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int i, dup_count = 0, phandle_count = 0; |
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for_each_of_allnodes(np) { |
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if (!np->phandle) |
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continue; |
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hash_for_each_possible(phandle_ht, nh, node, np->phandle) { |
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if (nh->np->phandle == np->phandle) { |
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pr_info("Duplicate phandle! %i used by %pOF and %pOF\n", |
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np->phandle, nh->np, np); |
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dup_count++; |
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break; |
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} |
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} |
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nh = kzalloc(sizeof(*nh), GFP_KERNEL); |
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if (!nh) |
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return; |
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nh->np = np; |
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hash_add(phandle_ht, &nh->node, np->phandle); |
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phandle_count++; |
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} |
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unittest(dup_count == 0, "Found %i duplicates in %i phandles\n", |
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dup_count, phandle_count); |
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|
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/* Clean up */ |
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hash_for_each_safe(phandle_ht, i, tmp, nh, node) { |
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hash_del(&nh->node); |
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kfree(nh); |
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} |
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} |
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static void __init of_unittest_parse_phandle_with_args(void) |
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{ |
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struct device_node *np; |
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struct of_phandle_args args; |
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int i, rc; |
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np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
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if (!np) { |
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pr_err("missing testcase data\n"); |
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return; |
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} |
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rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells"); |
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unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc); |
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for (i = 0; i < 8; i++) { |
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bool passed = true; |
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memset(&args, 0, sizeof(args)); |
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rc = of_parse_phandle_with_args(np, "phandle-list", |
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"#phandle-cells", i, &args); |
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|
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/* Test the values from tests-phandle.dtsi */ |
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switch (i) { |
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case 0: |
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passed &= !rc; |
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passed &= (args.args_count == 1); |
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passed &= (args.args[0] == (i + 1)); |
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break; |
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case 1: |
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passed &= !rc; |
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passed &= (args.args_count == 2); |
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passed &= (args.args[0] == (i + 1)); |
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passed &= (args.args[1] == 0); |
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break; |
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case 2: |
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passed &= (rc == -ENOENT); |
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break; |
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case 3: |
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passed &= !rc; |
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passed &= (args.args_count == 3); |
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passed &= (args.args[0] == (i + 1)); |
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passed &= (args.args[1] == 4); |
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passed &= (args.args[2] == 3); |
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break; |
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case 4: |
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passed &= !rc; |
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passed &= (args.args_count == 2); |
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passed &= (args.args[0] == (i + 1)); |
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passed &= (args.args[1] == 100); |
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break; |
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case 5: |
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passed &= !rc; |
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passed &= (args.args_count == 0); |
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break; |
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case 6: |
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passed &= !rc; |
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passed &= (args.args_count == 1); |
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passed &= (args.args[0] == (i + 1)); |
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break; |
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case 7: |
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passed &= (rc == -ENOENT); |
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break; |
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default: |
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passed = false; |
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} |
|
|
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unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
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i, args.np, rc); |
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} |
|
|
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/* Check for missing list property */ |
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memset(&args, 0, sizeof(args)); |
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rc = of_parse_phandle_with_args(np, "phandle-list-missing", |
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"#phandle-cells", 0, &args); |
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unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc); |
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rc = of_count_phandle_with_args(np, "phandle-list-missing", |
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"#phandle-cells"); |
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unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc); |
|
|
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/* Check for missing cells property */ |
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memset(&args, 0, sizeof(args)); |
|
|
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EXPECT_BEGIN(KERN_INFO, |
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"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1"); |
|
|
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rc = of_parse_phandle_with_args(np, "phandle-list", |
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"#phandle-cells-missing", 0, &args); |
|
|
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EXPECT_END(KERN_INFO, |
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"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1"); |
|
|
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unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1"); |
|
|
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rc = of_count_phandle_with_args(np, "phandle-list", |
|
"#phandle-cells-missing"); |
|
|
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EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1"); |
|
|
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unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
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/* Check for bad phandle in list */ |
|
memset(&args, 0, sizeof(args)); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle"); |
|
|
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rc = of_parse_phandle_with_args(np, "phandle-list-bad-phandle", |
|
"#phandle-cells", 0, &args); |
|
|
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EXPECT_END(KERN_INFO, |
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"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle"); |
|
|
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unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle"); |
|
|
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rc = of_count_phandle_with_args(np, "phandle-list-bad-phandle", |
|
"#phandle-cells"); |
|
|
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EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle"); |
|
|
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unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
|
/* Check for incorrectly formed argument list */ |
|
memset(&args, 0, sizeof(args)); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1"); |
|
|
|
rc = of_parse_phandle_with_args(np, "phandle-list-bad-args", |
|
"#phandle-cells", 1, &args); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1"); |
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1"); |
|
|
|
rc = of_count_phandle_with_args(np, "phandle-list-bad-args", |
|
"#phandle-cells"); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1"); |
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
} |
|
|
|
static void __init of_unittest_parse_phandle_with_args_map(void) |
|
{ |
|
struct device_node *np, *p0, *p1, *p2, *p3; |
|
struct of_phandle_args args; |
|
int i, rc; |
|
|
|
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-b"); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
p0 = of_find_node_by_path("/testcase-data/phandle-tests/provider0"); |
|
if (!p0) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
p1 = of_find_node_by_path("/testcase-data/phandle-tests/provider1"); |
|
if (!p1) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
p2 = of_find_node_by_path("/testcase-data/phandle-tests/provider2"); |
|
if (!p2) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
p3 = of_find_node_by_path("/testcase-data/phandle-tests/provider3"); |
|
if (!p3) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells"); |
|
unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc); |
|
|
|
for (i = 0; i < 8; i++) { |
|
bool passed = true; |
|
|
|
memset(&args, 0, sizeof(args)); |
|
rc = of_parse_phandle_with_args_map(np, "phandle-list", |
|
"phandle", i, &args); |
|
|
|
/* Test the values from tests-phandle.dtsi */ |
|
switch (i) { |
|
case 0: |
|
passed &= !rc; |
|
passed &= (args.np == p1); |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == 1); |
|
break; |
|
case 1: |
|
passed &= !rc; |
|
passed &= (args.np == p3); |
|
passed &= (args.args_count == 3); |
|
passed &= (args.args[0] == 2); |
|
passed &= (args.args[1] == 5); |
|
passed &= (args.args[2] == 3); |
|
break; |
|
case 2: |
|
passed &= (rc == -ENOENT); |
|
break; |
|
case 3: |
|
passed &= !rc; |
|
passed &= (args.np == p0); |
|
passed &= (args.args_count == 0); |
|
break; |
|
case 4: |
|
passed &= !rc; |
|
passed &= (args.np == p1); |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == 3); |
|
break; |
|
case 5: |
|
passed &= !rc; |
|
passed &= (args.np == p0); |
|
passed &= (args.args_count == 0); |
|
break; |
|
case 6: |
|
passed &= !rc; |
|
passed &= (args.np == p2); |
|
passed &= (args.args_count == 2); |
|
passed &= (args.args[0] == 15); |
|
passed &= (args.args[1] == 0x20); |
|
break; |
|
case 7: |
|
passed &= (rc == -ENOENT); |
|
break; |
|
default: |
|
passed = false; |
|
} |
|
|
|
unittest(passed, "index %i - data error on node %s rc=%i\n", |
|
i, args.np->full_name, rc); |
|
} |
|
|
|
/* Check for missing list property */ |
|
memset(&args, 0, sizeof(args)); |
|
rc = of_parse_phandle_with_args_map(np, "phandle-list-missing", |
|
"phandle", 0, &args); |
|
unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc); |
|
|
|
/* Check for missing cells,map,mask property */ |
|
memset(&args, 0, sizeof(args)); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1"); |
|
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list", |
|
"phandle-missing", 0, &args); |
|
EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1"); |
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
|
/* Check for bad phandle in list */ |
|
memset(&args, 0, sizeof(args)); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-b: could not find phandle"); |
|
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-phandle", |
|
"phandle", 0, &args); |
|
EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-b: could not find phandle"); |
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
|
|
/* Check for incorrectly formed argument list */ |
|
memset(&args, 0, sizeof(args)); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1"); |
|
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-args", |
|
"phandle", 1, &args); |
|
EXPECT_END(KERN_INFO, |
|
"OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1"); |
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
|
} |
|
|
|
static void __init of_unittest_property_string(void) |
|
{ |
|
const char *strings[4]; |
|
struct device_node *np; |
|
int rc; |
|
|
|
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
|
if (!np) { |
|
pr_err("No testcase data in device tree\n"); |
|
return; |
|
} |
|
|
|
rc = of_property_match_string(np, "phandle-list-names", "first"); |
|
unittest(rc == 0, "first expected:0 got:%i\n", rc); |
|
rc = of_property_match_string(np, "phandle-list-names", "second"); |
|
unittest(rc == 1, "second expected:1 got:%i\n", rc); |
|
rc = of_property_match_string(np, "phandle-list-names", "third"); |
|
unittest(rc == 2, "third expected:2 got:%i\n", rc); |
|
rc = of_property_match_string(np, "phandle-list-names", "fourth"); |
|
unittest(rc == -ENODATA, "unmatched string; rc=%i\n", rc); |
|
rc = of_property_match_string(np, "missing-property", "blah"); |
|
unittest(rc == -EINVAL, "missing property; rc=%i\n", rc); |
|
rc = of_property_match_string(np, "empty-property", "blah"); |
|
unittest(rc == -ENODATA, "empty property; rc=%i\n", rc); |
|
rc = of_property_match_string(np, "unterminated-string", "blah"); |
|
unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc); |
|
|
|
/* of_property_count_strings() tests */ |
|
rc = of_property_count_strings(np, "string-property"); |
|
unittest(rc == 1, "Incorrect string count; rc=%i\n", rc); |
|
rc = of_property_count_strings(np, "phandle-list-names"); |
|
unittest(rc == 3, "Incorrect string count; rc=%i\n", rc); |
|
rc = of_property_count_strings(np, "unterminated-string"); |
|
unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc); |
|
rc = of_property_count_strings(np, "unterminated-string-list"); |
|
unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc); |
|
|
|
/* of_property_read_string_index() tests */ |
|
rc = of_property_read_string_index(np, "string-property", 0, strings); |
|
unittest(rc == 0 && !strcmp(strings[0], "foobar"), "of_property_read_string_index() failure; rc=%i\n", rc); |
|
strings[0] = NULL; |
|
rc = of_property_read_string_index(np, "string-property", 1, strings); |
|
unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
|
rc = of_property_read_string_index(np, "phandle-list-names", 0, strings); |
|
unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc); |
|
rc = of_property_read_string_index(np, "phandle-list-names", 1, strings); |
|
unittest(rc == 0 && !strcmp(strings[0], "second"), "of_property_read_string_index() failure; rc=%i\n", rc); |
|
rc = of_property_read_string_index(np, "phandle-list-names", 2, strings); |
|
unittest(rc == 0 && !strcmp(strings[0], "third"), "of_property_read_string_index() failure; rc=%i\n", rc); |
|
strings[0] = NULL; |
|
rc = of_property_read_string_index(np, "phandle-list-names", 3, strings); |
|
unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
|
strings[0] = NULL; |
|
rc = of_property_read_string_index(np, "unterminated-string", 0, strings); |
|
unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
|
rc = of_property_read_string_index(np, "unterminated-string-list", 0, strings); |
|
unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc); |
|
strings[0] = NULL; |
|
rc = of_property_read_string_index(np, "unterminated-string-list", 2, strings); /* should fail */ |
|
unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
|
strings[1] = NULL; |
|
|
|
/* of_property_read_string_array() tests */ |
|
rc = of_property_read_string_array(np, "string-property", strings, 4); |
|
unittest(rc == 1, "Incorrect string count; rc=%i\n", rc); |
|
rc = of_property_read_string_array(np, "phandle-list-names", strings, 4); |
|
unittest(rc == 3, "Incorrect string count; rc=%i\n", rc); |
|
rc = of_property_read_string_array(np, "unterminated-string", strings, 4); |
|
unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc); |
|
/* -- An incorrectly formed string should cause a failure */ |
|
rc = of_property_read_string_array(np, "unterminated-string-list", strings, 4); |
|
unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc); |
|
/* -- parsing the correctly formed strings should still work: */ |
|
strings[2] = NULL; |
|
rc = of_property_read_string_array(np, "unterminated-string-list", strings, 2); |
|
unittest(rc == 2 && strings[2] == NULL, "of_property_read_string_array() failure; rc=%i\n", rc); |
|
strings[1] = NULL; |
|
rc = of_property_read_string_array(np, "phandle-list-names", strings, 1); |
|
unittest(rc == 1 && strings[1] == NULL, "Overwrote end of string array; rc=%i, str='%s'\n", rc, strings[1]); |
|
} |
|
|
|
#define propcmp(p1, p2) (((p1)->length == (p2)->length) && \ |
|
(p1)->value && (p2)->value && \ |
|
!memcmp((p1)->value, (p2)->value, (p1)->length) && \ |
|
!strcmp((p1)->name, (p2)->name)) |
|
static void __init of_unittest_property_copy(void) |
|
{ |
|
#ifdef CONFIG_OF_DYNAMIC |
|
struct property p1 = { .name = "p1", .length = 0, .value = "" }; |
|
struct property p2 = { .name = "p2", .length = 5, .value = "abcd" }; |
|
struct property *new; |
|
|
|
new = __of_prop_dup(&p1, GFP_KERNEL); |
|
unittest(new && propcmp(&p1, new), "empty property didn't copy correctly\n"); |
|
kfree(new->value); |
|
kfree(new->name); |
|
kfree(new); |
|
|
|
new = __of_prop_dup(&p2, GFP_KERNEL); |
|
unittest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n"); |
|
kfree(new->value); |
|
kfree(new->name); |
|
kfree(new); |
|
#endif |
|
} |
|
|
|
static void __init of_unittest_changeset(void) |
|
{ |
|
#ifdef CONFIG_OF_DYNAMIC |
|
struct property *ppadd, padd = { .name = "prop-add", .length = 1, .value = "" }; |
|
struct property *ppname_n1, pname_n1 = { .name = "name", .length = 3, .value = "n1" }; |
|
struct property *ppname_n2, pname_n2 = { .name = "name", .length = 3, .value = "n2" }; |
|
struct property *ppname_n21, pname_n21 = { .name = "name", .length = 3, .value = "n21" }; |
|
struct property *ppupdate, pupdate = { .name = "prop-update", .length = 5, .value = "abcd" }; |
|
struct property *ppremove; |
|
struct device_node *n1, *n2, *n21, *nchangeset, *nremove, *parent, *np; |
|
struct of_changeset chgset; |
|
|
|
n1 = __of_node_dup(NULL, "n1"); |
|
unittest(n1, "testcase setup failure\n"); |
|
|
|
n2 = __of_node_dup(NULL, "n2"); |
|
unittest(n2, "testcase setup failure\n"); |
|
|
|
n21 = __of_node_dup(NULL, "n21"); |
|
unittest(n21, "testcase setup failure %p\n", n21); |
|
|
|
nchangeset = of_find_node_by_path("/testcase-data/changeset"); |
|
nremove = of_get_child_by_name(nchangeset, "node-remove"); |
|
unittest(nremove, "testcase setup failure\n"); |
|
|
|
ppadd = __of_prop_dup(&padd, GFP_KERNEL); |
|
unittest(ppadd, "testcase setup failure\n"); |
|
|
|
ppname_n1 = __of_prop_dup(&pname_n1, GFP_KERNEL); |
|
unittest(ppname_n1, "testcase setup failure\n"); |
|
|
|
ppname_n2 = __of_prop_dup(&pname_n2, GFP_KERNEL); |
|
unittest(ppname_n2, "testcase setup failure\n"); |
|
|
|
ppname_n21 = __of_prop_dup(&pname_n21, GFP_KERNEL); |
|
unittest(ppname_n21, "testcase setup failure\n"); |
|
|
|
ppupdate = __of_prop_dup(&pupdate, GFP_KERNEL); |
|
unittest(ppupdate, "testcase setup failure\n"); |
|
|
|
parent = nchangeset; |
|
n1->parent = parent; |
|
n2->parent = parent; |
|
n21->parent = n2; |
|
|
|
ppremove = of_find_property(parent, "prop-remove", NULL); |
|
unittest(ppremove, "failed to find removal prop"); |
|
|
|
of_changeset_init(&chgset); |
|
|
|
unittest(!of_changeset_attach_node(&chgset, n1), "fail attach n1\n"); |
|
unittest(!of_changeset_add_property(&chgset, n1, ppname_n1), "fail add prop name\n"); |
|
|
|
unittest(!of_changeset_attach_node(&chgset, n2), "fail attach n2\n"); |
|
unittest(!of_changeset_add_property(&chgset, n2, ppname_n2), "fail add prop name\n"); |
|
|
|
unittest(!of_changeset_detach_node(&chgset, nremove), "fail remove node\n"); |
|
unittest(!of_changeset_add_property(&chgset, n21, ppname_n21), "fail add prop name\n"); |
|
|
|
unittest(!of_changeset_attach_node(&chgset, n21), "fail attach n21\n"); |
|
|
|
unittest(!of_changeset_add_property(&chgset, parent, ppadd), "fail add prop prop-add\n"); |
|
unittest(!of_changeset_update_property(&chgset, parent, ppupdate), "fail update prop\n"); |
|
unittest(!of_changeset_remove_property(&chgset, parent, ppremove), "fail remove prop\n"); |
|
|
|
unittest(!of_changeset_apply(&chgset), "apply failed\n"); |
|
|
|
of_node_put(nchangeset); |
|
|
|
/* Make sure node names are constructed correctly */ |
|
unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")), |
|
"'%pOF' not added\n", n21); |
|
of_node_put(np); |
|
|
|
unittest(!of_changeset_revert(&chgset), "revert failed\n"); |
|
|
|
of_changeset_destroy(&chgset); |
|
|
|
of_node_put(n1); |
|
of_node_put(n2); |
|
of_node_put(n21); |
|
#endif |
|
} |
|
|
|
static void __init of_unittest_dma_get_max_cpu_address(void) |
|
{ |
|
struct device_node *np; |
|
phys_addr_t cpu_addr; |
|
|
|
if (!IS_ENABLED(CONFIG_OF_ADDRESS)) |
|
return; |
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests"); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
cpu_addr = of_dma_get_max_cpu_address(np); |
|
unittest(cpu_addr == 0x4fffffff, |
|
"of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %x)\n", |
|
&cpu_addr, 0x4fffffff); |
|
} |
|
|
|
static void __init of_unittest_dma_ranges_one(const char *path, |
|
u64 expect_dma_addr, u64 expect_paddr) |
|
{ |
|
#ifdef CONFIG_HAS_DMA |
|
struct device_node *np; |
|
const struct bus_dma_region *map = NULL; |
|
int rc; |
|
|
|
np = of_find_node_by_path(path); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
rc = of_dma_get_range(np, &map); |
|
|
|
unittest(!rc, "of_dma_get_range failed on node %pOF rc=%i\n", np, rc); |
|
|
|
if (!rc) { |
|
phys_addr_t paddr; |
|
dma_addr_t dma_addr; |
|
struct device dev_bogus; |
|
|
|
dev_bogus.dma_range_map = map; |
|
paddr = dma_to_phys(&dev_bogus, expect_dma_addr); |
|
dma_addr = phys_to_dma(&dev_bogus, expect_paddr); |
|
|
|
unittest(paddr == expect_paddr, |
|
"of_dma_get_range: wrong phys addr %pap (expecting %llx) on node %pOF\n", |
|
&paddr, expect_paddr, np); |
|
unittest(dma_addr == expect_dma_addr, |
|
"of_dma_get_range: wrong DMA addr %pad (expecting %llx) on node %pOF\n", |
|
&dma_addr, expect_dma_addr, np); |
|
|
|
kfree(map); |
|
} |
|
of_node_put(np); |
|
#endif |
|
} |
|
|
|
static void __init of_unittest_parse_dma_ranges(void) |
|
{ |
|
of_unittest_dma_ranges_one("/testcase-data/address-tests/device@70000000", |
|
0x0, 0x20000000); |
|
of_unittest_dma_ranges_one("/testcase-data/address-tests/bus@80000000/device@1000", |
|
0x100000000, 0x20000000); |
|
of_unittest_dma_ranges_one("/testcase-data/address-tests/pci@90000000", |
|
0x80000000, 0x20000000); |
|
} |
|
|
|
static void __init of_unittest_pci_dma_ranges(void) |
|
{ |
|
struct device_node *np; |
|
struct of_pci_range range; |
|
struct of_pci_range_parser parser; |
|
int i = 0; |
|
|
|
if (!IS_ENABLED(CONFIG_PCI)) |
|
return; |
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests/pci@90000000"); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
if (of_pci_dma_range_parser_init(&parser, np)) { |
|
pr_err("missing dma-ranges property\n"); |
|
return; |
|
} |
|
|
|
/* |
|
* Get the dma-ranges from the device tree |
|
*/ |
|
for_each_of_pci_range(&parser, &range) { |
|
if (!i) { |
|
unittest(range.size == 0x10000000, |
|
"for_each_of_pci_range wrong size on node %pOF size=%llx\n", |
|
np, range.size); |
|
unittest(range.cpu_addr == 0x20000000, |
|
"for_each_of_pci_range wrong CPU addr (%llx) on node %pOF", |
|
range.cpu_addr, np); |
|
unittest(range.pci_addr == 0x80000000, |
|
"for_each_of_pci_range wrong DMA addr (%llx) on node %pOF", |
|
range.pci_addr, np); |
|
} else { |
|
unittest(range.size == 0x10000000, |
|
"for_each_of_pci_range wrong size on node %pOF size=%llx\n", |
|
np, range.size); |
|
unittest(range.cpu_addr == 0x40000000, |
|
"for_each_of_pci_range wrong CPU addr (%llx) on node %pOF", |
|
range.cpu_addr, np); |
|
unittest(range.pci_addr == 0xc0000000, |
|
"for_each_of_pci_range wrong DMA addr (%llx) on node %pOF", |
|
range.pci_addr, np); |
|
} |
|
i++; |
|
} |
|
|
|
of_node_put(np); |
|
} |
|
|
|
static void __init of_unittest_parse_interrupts(void) |
|
{ |
|
struct device_node *np; |
|
struct of_phandle_args args; |
|
int i, rc; |
|
|
|
if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) |
|
return; |
|
|
|
np = of_find_node_by_path("/testcase-data/interrupts/interrupts0"); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
for (i = 0; i < 4; i++) { |
|
bool passed = true; |
|
|
|
memset(&args, 0, sizeof(args)); |
|
rc = of_irq_parse_one(np, i, &args); |
|
|
|
passed &= !rc; |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == (i + 1)); |
|
|
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
|
i, args.np, rc); |
|
} |
|
of_node_put(np); |
|
|
|
np = of_find_node_by_path("/testcase-data/interrupts/interrupts1"); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
for (i = 0; i < 4; i++) { |
|
bool passed = true; |
|
|
|
memset(&args, 0, sizeof(args)); |
|
rc = of_irq_parse_one(np, i, &args); |
|
|
|
/* Test the values from tests-phandle.dtsi */ |
|
switch (i) { |
|
case 0: |
|
passed &= !rc; |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == 9); |
|
break; |
|
case 1: |
|
passed &= !rc; |
|
passed &= (args.args_count == 3); |
|
passed &= (args.args[0] == 10); |
|
passed &= (args.args[1] == 11); |
|
passed &= (args.args[2] == 12); |
|
break; |
|
case 2: |
|
passed &= !rc; |
|
passed &= (args.args_count == 2); |
|
passed &= (args.args[0] == 13); |
|
passed &= (args.args[1] == 14); |
|
break; |
|
case 3: |
|
passed &= !rc; |
|
passed &= (args.args_count == 2); |
|
passed &= (args.args[0] == 15); |
|
passed &= (args.args[1] == 16); |
|
break; |
|
default: |
|
passed = false; |
|
} |
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
|
i, args.np, rc); |
|
} |
|
of_node_put(np); |
|
} |
|
|
|
static void __init of_unittest_parse_interrupts_extended(void) |
|
{ |
|
struct device_node *np; |
|
struct of_phandle_args args; |
|
int i, rc; |
|
|
|
if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) |
|
return; |
|
|
|
np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0"); |
|
if (!np) { |
|
pr_err("missing testcase data\n"); |
|
return; |
|
} |
|
|
|
for (i = 0; i < 7; i++) { |
|
bool passed = true; |
|
|
|
memset(&args, 0, sizeof(args)); |
|
rc = of_irq_parse_one(np, i, &args); |
|
|
|
/* Test the values from tests-phandle.dtsi */ |
|
switch (i) { |
|
case 0: |
|
passed &= !rc; |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == 1); |
|
break; |
|
case 1: |
|
passed &= !rc; |
|
passed &= (args.args_count == 3); |
|
passed &= (args.args[0] == 2); |
|
passed &= (args.args[1] == 3); |
|
passed &= (args.args[2] == 4); |
|
break; |
|
case 2: |
|
passed &= !rc; |
|
passed &= (args.args_count == 2); |
|
passed &= (args.args[0] == 5); |
|
passed &= (args.args[1] == 6); |
|
break; |
|
case 3: |
|
passed &= !rc; |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == 9); |
|
break; |
|
case 4: |
|
passed &= !rc; |
|
passed &= (args.args_count == 3); |
|
passed &= (args.args[0] == 10); |
|
passed &= (args.args[1] == 11); |
|
passed &= (args.args[2] == 12); |
|
break; |
|
case 5: |
|
passed &= !rc; |
|
passed &= (args.args_count == 2); |
|
passed &= (args.args[0] == 13); |
|
passed &= (args.args[1] == 14); |
|
break; |
|
case 6: |
|
passed &= !rc; |
|
passed &= (args.args_count == 1); |
|
passed &= (args.args[0] == 15); |
|
break; |
|
default: |
|
passed = false; |
|
} |
|
|
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
|
i, args.np, rc); |
|
} |
|
of_node_put(np); |
|
} |
|
|
|
static const struct of_device_id match_node_table[] = { |
|
{ .data = "A", .name = "name0", }, /* Name alone is lowest priority */ |
|
{ .data = "B", .type = "type1", }, /* followed by type alone */ |
|
|
|
{ .data = "Ca", .name = "name2", .type = "type1", }, /* followed by both together */ |
|
{ .data = "Cb", .name = "name2", }, /* Only match when type doesn't match */ |
|
{ .data = "Cc", .name = "name2", .type = "type2", }, |
|
|
|
{ .data = "E", .compatible = "compat3" }, |
|
{ .data = "G", .compatible = "compat2", }, |
|
{ .data = "H", .compatible = "compat2", .name = "name5", }, |
|
{ .data = "I", .compatible = "compat2", .type = "type1", }, |
|
{ .data = "J", .compatible = "compat2", .type = "type1", .name = "name8", }, |
|
{ .data = "K", .compatible = "compat2", .name = "name9", }, |
|
{} |
|
}; |
|
|
|
static struct { |
|
const char *path; |
|
const char *data; |
|
} match_node_tests[] = { |
|
{ .path = "/testcase-data/match-node/name0", .data = "A", }, |
|
{ .path = "/testcase-data/match-node/name1", .data = "B", }, |
|
{ .path = "/testcase-data/match-node/a/name2", .data = "Ca", }, |
|
{ .path = "/testcase-data/match-node/b/name2", .data = "Cb", }, |
|
{ .path = "/testcase-data/match-node/c/name2", .data = "Cc", }, |
|
{ .path = "/testcase-data/match-node/name3", .data = "E", }, |
|
{ .path = "/testcase-data/match-node/name4", .data = "G", }, |
|
{ .path = "/testcase-data/match-node/name5", .data = "H", }, |
|
{ .path = "/testcase-data/match-node/name6", .data = "G", }, |
|
{ .path = "/testcase-data/match-node/name7", .data = "I", }, |
|
{ .path = "/testcase-data/match-node/name8", .data = "J", }, |
|
{ .path = "/testcase-data/match-node/name9", .data = "K", }, |
|
}; |
|
|
|
static void __init of_unittest_match_node(void) |
|
{ |
|
struct device_node *np; |
|
const struct of_device_id *match; |
|
int i; |
|
|
|
for (i = 0; i < ARRAY_SIZE(match_node_tests); i++) { |
|
np = of_find_node_by_path(match_node_tests[i].path); |
|
if (!np) { |
|
unittest(0, "missing testcase node %s\n", |
|
match_node_tests[i].path); |
|
continue; |
|
} |
|
|
|
match = of_match_node(match_node_table, np); |
|
if (!match) { |
|
unittest(0, "%s didn't match anything\n", |
|
match_node_tests[i].path); |
|
continue; |
|
} |
|
|
|
if (strcmp(match->data, match_node_tests[i].data) != 0) { |
|
unittest(0, "%s got wrong match. expected %s, got %s\n", |
|
match_node_tests[i].path, match_node_tests[i].data, |
|
(const char *)match->data); |
|
continue; |
|
} |
|
unittest(1, "passed"); |
|
} |
|
} |
|
|
|
static struct resource test_bus_res = { |
|
.start = 0xfffffff8, |
|
.end = 0xfffffff9, |
|
.flags = IORESOURCE_MEM, |
|
}; |
|
static const struct platform_device_info test_bus_info = { |
|
.name = "unittest-bus", |
|
}; |
|
static void __init of_unittest_platform_populate(void) |
|
{ |
|
int irq, rc; |
|
struct device_node *np, *child, *grandchild; |
|
struct platform_device *pdev, *test_bus; |
|
const struct of_device_id match[] = { |
|
{ .compatible = "test-device", }, |
|
{} |
|
}; |
|
|
|
np = of_find_node_by_path("/testcase-data"); |
|
of_platform_default_populate(np, NULL, NULL); |
|
|
|
/* Test that a missing irq domain returns -EPROBE_DEFER */ |
|
np = of_find_node_by_path("/testcase-data/testcase-device1"); |
|
pdev = of_find_device_by_node(np); |
|
unittest(pdev, "device 1 creation failed\n"); |
|
|
|
if (!(of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)) { |
|
irq = platform_get_irq(pdev, 0); |
|
unittest(irq == -EPROBE_DEFER, |
|
"device deferred probe failed - %d\n", irq); |
|
|
|
/* Test that a parsing failure does not return -EPROBE_DEFER */ |
|
np = of_find_node_by_path("/testcase-data/testcase-device2"); |
|
pdev = of_find_device_by_node(np); |
|
unittest(pdev, "device 2 creation failed\n"); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"platform testcase-data:testcase-device2: IRQ index 0 not found"); |
|
|
|
irq = platform_get_irq(pdev, 0); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"platform testcase-data:testcase-device2: IRQ index 0 not found"); |
|
|
|
unittest(irq < 0 && irq != -EPROBE_DEFER, |
|
"device parsing error failed - %d\n", irq); |
|
} |
|
|
|
np = of_find_node_by_path("/testcase-data/platform-tests"); |
|
unittest(np, "No testcase data in device tree\n"); |
|
if (!np) |
|
return; |
|
|
|
test_bus = platform_device_register_full(&test_bus_info); |
|
rc = PTR_ERR_OR_ZERO(test_bus); |
|
unittest(!rc, "testbus registration failed; rc=%i\n", rc); |
|
if (rc) { |
|
of_node_put(np); |
|
return; |
|
} |
|
test_bus->dev.of_node = np; |
|
|
|
/* |
|
* Add a dummy resource to the test bus node after it is |
|
* registered to catch problems with un-inserted resources. The |
|
* DT code doesn't insert the resources, and it has caused the |
|
* kernel to oops in the past. This makes sure the same bug |
|
* doesn't crop up again. |
|
*/ |
|
platform_device_add_resources(test_bus, &test_bus_res, 1); |
|
|
|
of_platform_populate(np, match, NULL, &test_bus->dev); |
|
for_each_child_of_node(np, child) { |
|
for_each_child_of_node(child, grandchild) { |
|
pdev = of_find_device_by_node(grandchild); |
|
unittest(pdev, |
|
"Could not create device for node '%pOFn'\n", |
|
grandchild); |
|
platform_device_put(pdev); |
|
} |
|
} |
|
|
|
of_platform_depopulate(&test_bus->dev); |
|
for_each_child_of_node(np, child) { |
|
for_each_child_of_node(child, grandchild) |
|
unittest(!of_find_device_by_node(grandchild), |
|
"device didn't get destroyed '%pOFn'\n", |
|
grandchild); |
|
} |
|
|
|
platform_device_unregister(test_bus); |
|
of_node_put(np); |
|
} |
|
|
|
/** |
|
* update_node_properties - adds the properties |
|
* of np into dup node (present in live tree) and |
|
* updates parent of children of np to dup. |
|
* |
|
* @np: node whose properties are being added to the live tree |
|
* @dup: node present in live tree to be updated |
|
*/ |
|
static void update_node_properties(struct device_node *np, |
|
struct device_node *dup) |
|
{ |
|
struct property *prop; |
|
struct property *save_next; |
|
struct device_node *child; |
|
int ret; |
|
|
|
for_each_child_of_node(np, child) |
|
child->parent = dup; |
|
|
|
/* |
|
* "unittest internal error: unable to add testdata property" |
|
* |
|
* If this message reports a property in node '/__symbols__' then |
|
* the respective unittest overlay contains a label that has the |
|
* same name as a label in the live devicetree. The label will |
|
* be in the live devicetree only if the devicetree source was |
|
* compiled with the '-@' option. If you encounter this error, |
|
* please consider renaming __all__ of the labels in the unittest |
|
* overlay dts files with an odd prefix that is unlikely to be |
|
* used in a real devicetree. |
|
*/ |
|
|
|
/* |
|
* open code for_each_property_of_node() because of_add_property() |
|
* sets prop->next to NULL |
|
*/ |
|
for (prop = np->properties; prop != NULL; prop = save_next) { |
|
save_next = prop->next; |
|
ret = of_add_property(dup, prop); |
|
if (ret) { |
|
if (ret == -EEXIST && !strcmp(prop->name, "name")) |
|
continue; |
|
pr_err("unittest internal error: unable to add testdata property %pOF/%s", |
|
np, prop->name); |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* attach_node_and_children - attaches nodes |
|
* and its children to live tree. |
|
* CAUTION: misleading function name - if node @np already exists in |
|
* the live tree then children of @np are *not* attached to the live |
|
* tree. This works for the current test devicetree nodes because such |
|
* nodes do not have child nodes. |
|
* |
|
* @np: Node to attach to live tree |
|
*/ |
|
static void attach_node_and_children(struct device_node *np) |
|
{ |
|
struct device_node *next, *dup, *child; |
|
unsigned long flags; |
|
const char *full_name; |
|
|
|
full_name = kasprintf(GFP_KERNEL, "%pOF", np); |
|
|
|
if (!strcmp(full_name, "/__local_fixups__") || |
|
!strcmp(full_name, "/__fixups__")) { |
|
kfree(full_name); |
|
return; |
|
} |
|
|
|
dup = of_find_node_by_path(full_name); |
|
kfree(full_name); |
|
if (dup) { |
|
update_node_properties(np, dup); |
|
return; |
|
} |
|
|
|
child = np->child; |
|
np->child = NULL; |
|
|
|
mutex_lock(&of_mutex); |
|
raw_spin_lock_irqsave(&devtree_lock, flags); |
|
np->sibling = np->parent->child; |
|
np->parent->child = np; |
|
of_node_clear_flag(np, OF_DETACHED); |
|
raw_spin_unlock_irqrestore(&devtree_lock, flags); |
|
|
|
__of_attach_node_sysfs(np); |
|
mutex_unlock(&of_mutex); |
|
|
|
while (child) { |
|
next = child->sibling; |
|
attach_node_and_children(child); |
|
child = next; |
|
} |
|
} |
|
|
|
/** |
|
* unittest_data_add - Reads, copies data from |
|
* linked tree and attaches it to the live tree |
|
*/ |
|
static int __init unittest_data_add(void) |
|
{ |
|
void *unittest_data; |
|
void *unittest_data_align; |
|
struct device_node *unittest_data_node = NULL, *np; |
|
/* |
|
* __dtb_testcases_begin[] and __dtb_testcases_end[] are magically |
|
* created by cmd_dt_S_dtb in scripts/Makefile.lib |
|
*/ |
|
extern uint8_t __dtb_testcases_begin[]; |
|
extern uint8_t __dtb_testcases_end[]; |
|
const int size = __dtb_testcases_end - __dtb_testcases_begin; |
|
int rc; |
|
void *ret; |
|
|
|
if (!size) { |
|
pr_warn("%s: testcases is empty\n", __func__); |
|
return -ENODATA; |
|
} |
|
|
|
/* creating copy */ |
|
unittest_data = kmalloc(size + FDT_ALIGN_SIZE, GFP_KERNEL); |
|
if (!unittest_data) |
|
return -ENOMEM; |
|
|
|
unittest_data_align = PTR_ALIGN(unittest_data, FDT_ALIGN_SIZE); |
|
memcpy(unittest_data_align, __dtb_testcases_begin, size); |
|
|
|
ret = of_fdt_unflatten_tree(unittest_data_align, NULL, &unittest_data_node); |
|
if (!ret) { |
|
pr_warn("%s: unflatten testcases tree failed\n", __func__); |
|
kfree(unittest_data); |
|
return -ENODATA; |
|
} |
|
if (!unittest_data_node) { |
|
pr_warn("%s: testcases tree is empty\n", __func__); |
|
kfree(unittest_data); |
|
return -ENODATA; |
|
} |
|
|
|
/* |
|
* This lock normally encloses of_resolve_phandles() |
|
*/ |
|
of_overlay_mutex_lock(); |
|
|
|
rc = of_resolve_phandles(unittest_data_node); |
|
if (rc) { |
|
pr_err("%s: Failed to resolve phandles (rc=%i)\n", __func__, rc); |
|
of_overlay_mutex_unlock(); |
|
return -EINVAL; |
|
} |
|
|
|
if (!of_root) { |
|
of_root = unittest_data_node; |
|
for_each_of_allnodes(np) |
|
__of_attach_node_sysfs(np); |
|
of_aliases = of_find_node_by_path("/aliases"); |
|
of_chosen = of_find_node_by_path("/chosen"); |
|
of_overlay_mutex_unlock(); |
|
return 0; |
|
} |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"Duplicate name in testcase-data, renamed to \"duplicate-name#1\""); |
|
|
|
/* attach the sub-tree to live tree */ |
|
np = unittest_data_node->child; |
|
while (np) { |
|
struct device_node *next = np->sibling; |
|
|
|
np->parent = of_root; |
|
attach_node_and_children(np); |
|
np = next; |
|
} |
|
|
|
EXPECT_END(KERN_INFO, |
|
"Duplicate name in testcase-data, renamed to \"duplicate-name#1\""); |
|
|
|
of_overlay_mutex_unlock(); |
|
|
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_OF_OVERLAY |
|
static int __init overlay_data_apply(const char *overlay_name, int *overlay_id); |
|
|
|
static int unittest_probe(struct platform_device *pdev) |
|
{ |
|
struct device *dev = &pdev->dev; |
|
struct device_node *np = dev->of_node; |
|
|
|
if (np == NULL) { |
|
dev_err(dev, "No OF data for device\n"); |
|
return -EINVAL; |
|
|
|
} |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
|
|
of_platform_populate(np, NULL, NULL, &pdev->dev); |
|
|
|
return 0; |
|
} |
|
|
|
static int unittest_remove(struct platform_device *pdev) |
|
{ |
|
struct device *dev = &pdev->dev; |
|
struct device_node *np = dev->of_node; |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
return 0; |
|
} |
|
|
|
static const struct of_device_id unittest_match[] = { |
|
{ .compatible = "unittest", }, |
|
{}, |
|
}; |
|
|
|
static struct platform_driver unittest_driver = { |
|
.probe = unittest_probe, |
|
.remove = unittest_remove, |
|
.driver = { |
|
.name = "unittest", |
|
.of_match_table = of_match_ptr(unittest_match), |
|
}, |
|
}; |
|
|
|
/* get the platform device instantiated at the path */ |
|
static struct platform_device *of_path_to_platform_device(const char *path) |
|
{ |
|
struct device_node *np; |
|
struct platform_device *pdev; |
|
|
|
np = of_find_node_by_path(path); |
|
if (np == NULL) |
|
return NULL; |
|
|
|
pdev = of_find_device_by_node(np); |
|
of_node_put(np); |
|
|
|
return pdev; |
|
} |
|
|
|
/* find out if a platform device exists at that path */ |
|
static int of_path_platform_device_exists(const char *path) |
|
{ |
|
struct platform_device *pdev; |
|
|
|
pdev = of_path_to_platform_device(path); |
|
platform_device_put(pdev); |
|
return pdev != NULL; |
|
} |
|
|
|
#ifdef CONFIG_OF_GPIO |
|
|
|
struct unittest_gpio_dev { |
|
struct gpio_chip chip; |
|
}; |
|
|
|
static int unittest_gpio_chip_request_count; |
|
static int unittest_gpio_probe_count; |
|
static int unittest_gpio_probe_pass_count; |
|
|
|
static int unittest_gpio_chip_request(struct gpio_chip *chip, unsigned int offset) |
|
{ |
|
unittest_gpio_chip_request_count++; |
|
|
|
pr_debug("%s(): %s %d %d\n", __func__, chip->label, offset, |
|
unittest_gpio_chip_request_count); |
|
return 0; |
|
} |
|
|
|
static int unittest_gpio_probe(struct platform_device *pdev) |
|
{ |
|
struct unittest_gpio_dev *devptr; |
|
int ret; |
|
|
|
unittest_gpio_probe_count++; |
|
|
|
devptr = kzalloc(sizeof(*devptr), GFP_KERNEL); |
|
if (!devptr) |
|
return -ENOMEM; |
|
|
|
platform_set_drvdata(pdev, devptr); |
|
|
|
devptr->chip.of_node = pdev->dev.of_node; |
|
devptr->chip.label = "of-unittest-gpio"; |
|
devptr->chip.base = -1; /* dynamic allocation */ |
|
devptr->chip.ngpio = 5; |
|
devptr->chip.request = unittest_gpio_chip_request; |
|
|
|
ret = gpiochip_add_data(&devptr->chip, NULL); |
|
|
|
unittest(!ret, |
|
"gpiochip_add_data() for node @%pOF failed, ret = %d\n", devptr->chip.of_node, ret); |
|
|
|
if (!ret) |
|
unittest_gpio_probe_pass_count++; |
|
return ret; |
|
} |
|
|
|
static int unittest_gpio_remove(struct platform_device *pdev) |
|
{ |
|
struct unittest_gpio_dev *gdev = platform_get_drvdata(pdev); |
|
struct device *dev = &pdev->dev; |
|
struct device_node *np = pdev->dev.of_node; |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
|
|
if (!gdev) |
|
return -EINVAL; |
|
|
|
if (gdev->chip.base != -1) |
|
gpiochip_remove(&gdev->chip); |
|
|
|
platform_set_drvdata(pdev, NULL); |
|
kfree(gdev); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct of_device_id unittest_gpio_id[] = { |
|
{ .compatible = "unittest-gpio", }, |
|
{} |
|
}; |
|
|
|
static struct platform_driver unittest_gpio_driver = { |
|
.probe = unittest_gpio_probe, |
|
.remove = unittest_gpio_remove, |
|
.driver = { |
|
.name = "unittest-gpio", |
|
.of_match_table = of_match_ptr(unittest_gpio_id), |
|
}, |
|
}; |
|
|
|
static void __init of_unittest_overlay_gpio(void) |
|
{ |
|
int chip_request_count; |
|
int probe_pass_count; |
|
int ret; |
|
|
|
/* |
|
* tests: apply overlays before registering driver |
|
* Similar to installing a driver as a module, the |
|
* driver is registered after applying the overlays. |
|
* |
|
* The overlays are applied by overlay_data_apply() |
|
* instead of of_unittest_apply_overlay() so that they |
|
* will not be tracked. Thus they will not be removed |
|
* by of_unittest_destroy_tracked_overlays(). |
|
* |
|
* - apply overlay_gpio_01 |
|
* - apply overlay_gpio_02a |
|
* - apply overlay_gpio_02b |
|
* - register driver |
|
* |
|
* register driver will result in |
|
* - probe and processing gpio hog for overlay_gpio_01 |
|
* - probe for overlay_gpio_02a |
|
* - processing gpio for overlay_gpio_02b |
|
*/ |
|
|
|
probe_pass_count = unittest_gpio_probe_pass_count; |
|
chip_request_count = unittest_gpio_chip_request_count; |
|
|
|
/* |
|
* overlay_gpio_01 contains gpio node and child gpio hog node |
|
* overlay_gpio_02a contains gpio node |
|
* overlay_gpio_02b contains child gpio hog node |
|
*/ |
|
|
|
unittest(overlay_data_apply("overlay_gpio_01", NULL), |
|
"Adding overlay 'overlay_gpio_01' failed\n"); |
|
|
|
unittest(overlay_data_apply("overlay_gpio_02a", NULL), |
|
"Adding overlay 'overlay_gpio_02a' failed\n"); |
|
|
|
unittest(overlay_data_apply("overlay_gpio_02b", NULL), |
|
"Adding overlay 'overlay_gpio_02b' failed\n"); |
|
|
|
/* |
|
* messages are the result of the probes, after the |
|
* driver is registered |
|
*/ |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"GPIO line <<int>> (line-B-input) hogged as input\n"); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"GPIO line <<int>> (line-A-input) hogged as input\n"); |
|
|
|
ret = platform_driver_register(&unittest_gpio_driver); |
|
if (unittest(ret == 0, "could not register unittest gpio driver\n")) |
|
return; |
|
|
|
EXPECT_END(KERN_INFO, |
|
"GPIO line <<int>> (line-A-input) hogged as input\n"); |
|
EXPECT_END(KERN_INFO, |
|
"GPIO line <<int>> (line-B-input) hogged as input\n"); |
|
|
|
unittest(probe_pass_count + 2 == unittest_gpio_probe_pass_count, |
|
"unittest_gpio_probe() failed or not called\n"); |
|
|
|
unittest(chip_request_count + 2 == unittest_gpio_chip_request_count, |
|
"unittest_gpio_chip_request() called %d times (expected 1 time)\n", |
|
unittest_gpio_chip_request_count - chip_request_count); |
|
|
|
/* |
|
* tests: apply overlays after registering driver |
|
* |
|
* Similar to a driver built-in to the kernel, the |
|
* driver is registered before applying the overlays. |
|
* |
|
* overlay_gpio_03 contains gpio node and child gpio hog node |
|
* |
|
* - apply overlay_gpio_03 |
|
* |
|
* apply overlay will result in |
|
* - probe and processing gpio hog. |
|
*/ |
|
|
|
probe_pass_count = unittest_gpio_probe_pass_count; |
|
chip_request_count = unittest_gpio_chip_request_count; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"GPIO line <<int>> (line-D-input) hogged as input\n"); |
|
|
|
/* overlay_gpio_03 contains gpio node and child gpio hog node */ |
|
|
|
unittest(overlay_data_apply("overlay_gpio_03", NULL), |
|
"Adding overlay 'overlay_gpio_03' failed\n"); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"GPIO line <<int>> (line-D-input) hogged as input\n"); |
|
|
|
unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count, |
|
"unittest_gpio_probe() failed or not called\n"); |
|
|
|
unittest(chip_request_count + 1 == unittest_gpio_chip_request_count, |
|
"unittest_gpio_chip_request() called %d times (expected 1 time)\n", |
|
unittest_gpio_chip_request_count - chip_request_count); |
|
|
|
/* |
|
* overlay_gpio_04a contains gpio node |
|
* |
|
* - apply overlay_gpio_04a |
|
* |
|
* apply the overlay will result in |
|
* - probe for overlay_gpio_04a |
|
*/ |
|
|
|
probe_pass_count = unittest_gpio_probe_pass_count; |
|
chip_request_count = unittest_gpio_chip_request_count; |
|
|
|
/* overlay_gpio_04a contains gpio node */ |
|
|
|
unittest(overlay_data_apply("overlay_gpio_04a", NULL), |
|
"Adding overlay 'overlay_gpio_04a' failed\n"); |
|
|
|
unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count, |
|
"unittest_gpio_probe() failed or not called\n"); |
|
|
|
/* |
|
* overlay_gpio_04b contains child gpio hog node |
|
* |
|
* - apply overlay_gpio_04b |
|
* |
|
* apply the overlay will result in |
|
* - processing gpio for overlay_gpio_04b |
|
*/ |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"GPIO line <<int>> (line-C-input) hogged as input\n"); |
|
|
|
/* overlay_gpio_04b contains child gpio hog node */ |
|
|
|
unittest(overlay_data_apply("overlay_gpio_04b", NULL), |
|
"Adding overlay 'overlay_gpio_04b' failed\n"); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"GPIO line <<int>> (line-C-input) hogged as input\n"); |
|
|
|
unittest(chip_request_count + 1 == unittest_gpio_chip_request_count, |
|
"unittest_gpio_chip_request() called %d times (expected 1 time)\n", |
|
unittest_gpio_chip_request_count - chip_request_count); |
|
} |
|
|
|
#else |
|
|
|
static void __init of_unittest_overlay_gpio(void) |
|
{ |
|
/* skip tests */ |
|
} |
|
|
|
#endif |
|
|
|
#if IS_BUILTIN(CONFIG_I2C) |
|
|
|
/* get the i2c client device instantiated at the path */ |
|
static struct i2c_client *of_path_to_i2c_client(const char *path) |
|
{ |
|
struct device_node *np; |
|
struct i2c_client *client; |
|
|
|
np = of_find_node_by_path(path); |
|
if (np == NULL) |
|
return NULL; |
|
|
|
client = of_find_i2c_device_by_node(np); |
|
of_node_put(np); |
|
|
|
return client; |
|
} |
|
|
|
/* find out if a i2c client device exists at that path */ |
|
static int of_path_i2c_client_exists(const char *path) |
|
{ |
|
struct i2c_client *client; |
|
|
|
client = of_path_to_i2c_client(path); |
|
if (client) |
|
put_device(&client->dev); |
|
return client != NULL; |
|
} |
|
#else |
|
static int of_path_i2c_client_exists(const char *path) |
|
{ |
|
return 0; |
|
} |
|
#endif |
|
|
|
enum overlay_type { |
|
PDEV_OVERLAY, |
|
I2C_OVERLAY |
|
}; |
|
|
|
static int of_path_device_type_exists(const char *path, |
|
enum overlay_type ovtype) |
|
{ |
|
switch (ovtype) { |
|
case PDEV_OVERLAY: |
|
return of_path_platform_device_exists(path); |
|
case I2C_OVERLAY: |
|
return of_path_i2c_client_exists(path); |
|
} |
|
return 0; |
|
} |
|
|
|
static const char *unittest_path(int nr, enum overlay_type ovtype) |
|
{ |
|
const char *base; |
|
static char buf[256]; |
|
|
|
switch (ovtype) { |
|
case PDEV_OVERLAY: |
|
base = "/testcase-data/overlay-node/test-bus"; |
|
break; |
|
case I2C_OVERLAY: |
|
base = "/testcase-data/overlay-node/test-bus/i2c-test-bus"; |
|
break; |
|
default: |
|
buf[0] = '\0'; |
|
return buf; |
|
} |
|
snprintf(buf, sizeof(buf) - 1, "%s/test-unittest%d", base, nr); |
|
buf[sizeof(buf) - 1] = '\0'; |
|
return buf; |
|
} |
|
|
|
static int of_unittest_device_exists(int unittest_nr, enum overlay_type ovtype) |
|
{ |
|
const char *path; |
|
|
|
path = unittest_path(unittest_nr, ovtype); |
|
|
|
switch (ovtype) { |
|
case PDEV_OVERLAY: |
|
return of_path_platform_device_exists(path); |
|
case I2C_OVERLAY: |
|
return of_path_i2c_client_exists(path); |
|
} |
|
return 0; |
|
} |
|
|
|
static const char *overlay_name_from_nr(int nr) |
|
{ |
|
static char buf[256]; |
|
|
|
snprintf(buf, sizeof(buf) - 1, |
|
"overlay_%d", nr); |
|
buf[sizeof(buf) - 1] = '\0'; |
|
|
|
return buf; |
|
} |
|
|
|
static const char *bus_path = "/testcase-data/overlay-node/test-bus"; |
|
|
|
/* FIXME: it is NOT guaranteed that overlay ids are assigned in sequence */ |
|
|
|
#define MAX_UNITTEST_OVERLAYS 256 |
|
static unsigned long overlay_id_bits[BITS_TO_LONGS(MAX_UNITTEST_OVERLAYS)]; |
|
static int overlay_first_id = -1; |
|
|
|
static long of_unittest_overlay_tracked(int id) |
|
{ |
|
if (WARN_ON(id >= MAX_UNITTEST_OVERLAYS)) |
|
return 0; |
|
return overlay_id_bits[BIT_WORD(id)] & BIT_MASK(id); |
|
} |
|
|
|
static void of_unittest_track_overlay(int id) |
|
{ |
|
if (overlay_first_id < 0) |
|
overlay_first_id = id; |
|
id -= overlay_first_id; |
|
|
|
if (WARN_ON(id >= MAX_UNITTEST_OVERLAYS)) |
|
return; |
|
overlay_id_bits[BIT_WORD(id)] |= BIT_MASK(id); |
|
} |
|
|
|
static void of_unittest_untrack_overlay(int id) |
|
{ |
|
if (overlay_first_id < 0) |
|
return; |
|
id -= overlay_first_id; |
|
if (WARN_ON(id >= MAX_UNITTEST_OVERLAYS)) |
|
return; |
|
overlay_id_bits[BIT_WORD(id)] &= ~BIT_MASK(id); |
|
} |
|
|
|
static void of_unittest_destroy_tracked_overlays(void) |
|
{ |
|
int id, ret, defers, ovcs_id; |
|
|
|
if (overlay_first_id < 0) |
|
return; |
|
|
|
/* try until no defers */ |
|
do { |
|
defers = 0; |
|
/* remove in reverse order */ |
|
for (id = MAX_UNITTEST_OVERLAYS - 1; id >= 0; id--) { |
|
if (!of_unittest_overlay_tracked(id)) |
|
continue; |
|
|
|
ovcs_id = id + overlay_first_id; |
|
ret = of_overlay_remove(&ovcs_id); |
|
if (ret == -ENODEV) { |
|
pr_warn("%s: no overlay to destroy for #%d\n", |
|
__func__, id + overlay_first_id); |
|
continue; |
|
} |
|
if (ret != 0) { |
|
defers++; |
|
pr_warn("%s: overlay destroy failed for #%d\n", |
|
__func__, id + overlay_first_id); |
|
continue; |
|
} |
|
|
|
of_unittest_untrack_overlay(id); |
|
} |
|
} while (defers > 0); |
|
} |
|
|
|
static int __init of_unittest_apply_overlay(int overlay_nr, int *overlay_id) |
|
{ |
|
const char *overlay_name; |
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr); |
|
|
|
if (!overlay_data_apply(overlay_name, overlay_id)) { |
|
unittest(0, "could not apply overlay \"%s\"\n", |
|
overlay_name); |
|
return -EFAULT; |
|
} |
|
of_unittest_track_overlay(*overlay_id); |
|
|
|
return 0; |
|
} |
|
|
|
/* apply an overlay while checking before and after states */ |
|
static int __init of_unittest_apply_overlay_check(int overlay_nr, |
|
int unittest_nr, int before, int after, |
|
enum overlay_type ovtype) |
|
{ |
|
int ret, ovcs_id; |
|
|
|
/* unittest device must not be in before state */ |
|
if (of_unittest_device_exists(unittest_nr, ovtype) != before) { |
|
unittest(0, "%s with device @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr), |
|
unittest_path(unittest_nr, ovtype), |
|
!before ? "enabled" : "disabled"); |
|
return -EINVAL; |
|
} |
|
|
|
ovcs_id = 0; |
|
ret = of_unittest_apply_overlay(overlay_nr, &ovcs_id); |
|
if (ret != 0) { |
|
/* of_unittest_apply_overlay already called unittest() */ |
|
return ret; |
|
} |
|
|
|
/* unittest device must be to set to after state */ |
|
if (of_unittest_device_exists(unittest_nr, ovtype) != after) { |
|
unittest(0, "%s failed to create @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr), |
|
unittest_path(unittest_nr, ovtype), |
|
!after ? "enabled" : "disabled"); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* apply an overlay and then revert it while checking before, after states */ |
|
static int __init of_unittest_apply_revert_overlay_check(int overlay_nr, |
|
int unittest_nr, int before, int after, |
|
enum overlay_type ovtype) |
|
{ |
|
int ret, ovcs_id, save_id; |
|
|
|
/* unittest device must be in before state */ |
|
if (of_unittest_device_exists(unittest_nr, ovtype) != before) { |
|
unittest(0, "%s with device @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr), |
|
unittest_path(unittest_nr, ovtype), |
|
!before ? "enabled" : "disabled"); |
|
return -EINVAL; |
|
} |
|
|
|
/* apply the overlay */ |
|
ovcs_id = 0; |
|
ret = of_unittest_apply_overlay(overlay_nr, &ovcs_id); |
|
if (ret != 0) { |
|
/* of_unittest_apply_overlay already called unittest() */ |
|
return ret; |
|
} |
|
|
|
/* unittest device must be in after state */ |
|
if (of_unittest_device_exists(unittest_nr, ovtype) != after) { |
|
unittest(0, "%s failed to create @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr), |
|
unittest_path(unittest_nr, ovtype), |
|
!after ? "enabled" : "disabled"); |
|
return -EINVAL; |
|
} |
|
|
|
save_id = ovcs_id; |
|
ret = of_overlay_remove(&ovcs_id); |
|
if (ret != 0) { |
|
unittest(0, "%s failed to be destroyed @\"%s\"\n", |
|
overlay_name_from_nr(overlay_nr), |
|
unittest_path(unittest_nr, ovtype)); |
|
return ret; |
|
} |
|
of_unittest_untrack_overlay(save_id); |
|
|
|
/* unittest device must be again in before state */ |
|
if (of_unittest_device_exists(unittest_nr, PDEV_OVERLAY) != before) { |
|
unittest(0, "%s with device @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr), |
|
unittest_path(unittest_nr, ovtype), |
|
!before ? "enabled" : "disabled"); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* test activation of device */ |
|
static void __init of_unittest_overlay_0(void) |
|
{ |
|
int ret; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status"); |
|
|
|
/* device should enable */ |
|
ret = of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 0); |
|
} |
|
|
|
/* test deactivation of device */ |
|
static void __init of_unittest_overlay_1(void) |
|
{ |
|
int ret; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status"); |
|
|
|
/* device should disable */ |
|
ret = of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 1); |
|
|
|
} |
|
|
|
/* test activation of device */ |
|
static void __init of_unittest_overlay_2(void) |
|
{ |
|
int ret; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status"); |
|
|
|
/* device should enable */ |
|
ret = of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status"); |
|
|
|
if (ret) |
|
return; |
|
unittest(1, "overlay test %d passed\n", 2); |
|
} |
|
|
|
/* test deactivation of device */ |
|
static void __init of_unittest_overlay_3(void) |
|
{ |
|
int ret; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status"); |
|
|
|
/* device should disable */ |
|
ret = of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 3); |
|
} |
|
|
|
/* test activation of a full device node */ |
|
static void __init of_unittest_overlay_4(void) |
|
{ |
|
/* device should disable */ |
|
if (of_unittest_apply_overlay_check(4, 4, 0, 1, PDEV_OVERLAY)) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 4); |
|
} |
|
|
|
/* test overlay apply/revert sequence */ |
|
static void __init of_unittest_overlay_5(void) |
|
{ |
|
int ret; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status"); |
|
|
|
/* device should disable */ |
|
ret = of_unittest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 5); |
|
} |
|
|
|
/* test overlay application in sequence */ |
|
static void __init of_unittest_overlay_6(void) |
|
{ |
|
int i, ov_id[2], ovcs_id; |
|
int overlay_nr = 6, unittest_nr = 6; |
|
int before = 0, after = 1; |
|
const char *overlay_name; |
|
|
|
int ret; |
|
|
|
/* unittest device must be in before state */ |
|
for (i = 0; i < 2; i++) { |
|
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY) |
|
!= before) { |
|
unittest(0, "%s with device @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr + i), |
|
unittest_path(unittest_nr + i, |
|
PDEV_OVERLAY), |
|
!before ? "enabled" : "disabled"); |
|
return; |
|
} |
|
} |
|
|
|
/* apply the overlays */ |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status"); |
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 0); |
|
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id); |
|
|
|
if (!ret) { |
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name); |
|
return; |
|
} |
|
ov_id[0] = ovcs_id; |
|
of_unittest_track_overlay(ov_id[0]); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status"); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status"); |
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 1); |
|
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id); |
|
|
|
if (!ret) { |
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name); |
|
return; |
|
} |
|
ov_id[1] = ovcs_id; |
|
of_unittest_track_overlay(ov_id[1]); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status"); |
|
|
|
|
|
for (i = 0; i < 2; i++) { |
|
/* unittest device must be in after state */ |
|
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY) |
|
!= after) { |
|
unittest(0, "overlay @\"%s\" failed @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr + i), |
|
unittest_path(unittest_nr + i, |
|
PDEV_OVERLAY), |
|
!after ? "enabled" : "disabled"); |
|
return; |
|
} |
|
} |
|
|
|
for (i = 1; i >= 0; i--) { |
|
ovcs_id = ov_id[i]; |
|
if (of_overlay_remove(&ovcs_id)) { |
|
unittest(0, "%s failed destroy @\"%s\"\n", |
|
overlay_name_from_nr(overlay_nr + i), |
|
unittest_path(unittest_nr + i, |
|
PDEV_OVERLAY)); |
|
return; |
|
} |
|
of_unittest_untrack_overlay(ov_id[i]); |
|
} |
|
|
|
for (i = 0; i < 2; i++) { |
|
/* unittest device must be again in before state */ |
|
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY) |
|
!= before) { |
|
unittest(0, "%s with device @\"%s\" %s\n", |
|
overlay_name_from_nr(overlay_nr + i), |
|
unittest_path(unittest_nr + i, |
|
PDEV_OVERLAY), |
|
!before ? "enabled" : "disabled"); |
|
return; |
|
} |
|
} |
|
|
|
unittest(1, "overlay test %d passed\n", 6); |
|
|
|
} |
|
|
|
/* test overlay application in sequence */ |
|
static void __init of_unittest_overlay_8(void) |
|
{ |
|
int i, ov_id[2], ovcs_id; |
|
int overlay_nr = 8, unittest_nr = 8; |
|
const char *overlay_name; |
|
int ret; |
|
|
|
/* we don't care about device state in this test */ |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status"); |
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 0); |
|
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id); |
|
if (!ret) |
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status"); |
|
|
|
if (!ret) |
|
return; |
|
|
|
ov_id[0] = ovcs_id; |
|
of_unittest_track_overlay(ov_id[0]); |
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 1); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo"); |
|
|
|
/* apply the overlays */ |
|
ret = overlay_data_apply(overlay_name, &ovcs_id); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo"); |
|
|
|
if (!ret) { |
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name); |
|
return; |
|
} |
|
|
|
ov_id[1] = ovcs_id; |
|
of_unittest_track_overlay(ov_id[1]); |
|
|
|
/* now try to remove first overlay (it should fail) */ |
|
ovcs_id = ov_id[0]; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8"); |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: overlay #6 is not topmost"); |
|
|
|
ret = of_overlay_remove(&ovcs_id); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: overlay #6 is not topmost"); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8"); |
|
|
|
if (!ret) { |
|
unittest(0, "%s was destroyed @\"%s\"\n", |
|
overlay_name_from_nr(overlay_nr + 0), |
|
unittest_path(unittest_nr, |
|
PDEV_OVERLAY)); |
|
return; |
|
} |
|
|
|
/* removing them in order should work */ |
|
for (i = 1; i >= 0; i--) { |
|
ovcs_id = ov_id[i]; |
|
if (of_overlay_remove(&ovcs_id)) { |
|
unittest(0, "%s not destroyed @\"%s\"\n", |
|
overlay_name_from_nr(overlay_nr + i), |
|
unittest_path(unittest_nr, |
|
PDEV_OVERLAY)); |
|
return; |
|
} |
|
of_unittest_untrack_overlay(ov_id[i]); |
|
} |
|
|
|
unittest(1, "overlay test %d passed\n", 8); |
|
} |
|
|
|
/* test insertion of a bus with parent devices */ |
|
static void __init of_unittest_overlay_10(void) |
|
{ |
|
int ret; |
|
char *child_path; |
|
|
|
/* device should disable */ |
|
ret = of_unittest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY); |
|
|
|
if (unittest(ret == 0, |
|
"overlay test %d failed; overlay application\n", 10)) |
|
return; |
|
|
|
child_path = kasprintf(GFP_KERNEL, "%s/test-unittest101", |
|
unittest_path(10, PDEV_OVERLAY)); |
|
if (unittest(child_path, "overlay test %d failed; kasprintf\n", 10)) |
|
return; |
|
|
|
ret = of_path_device_type_exists(child_path, PDEV_OVERLAY); |
|
kfree(child_path); |
|
|
|
unittest(ret, "overlay test %d failed; no child device\n", 10); |
|
} |
|
|
|
/* test insertion of a bus with parent devices (and revert) */ |
|
static void __init of_unittest_overlay_11(void) |
|
{ |
|
int ret; |
|
|
|
/* device should disable */ |
|
ret = of_unittest_apply_revert_overlay_check(11, 11, 0, 1, |
|
PDEV_OVERLAY); |
|
|
|
unittest(ret == 0, "overlay test %d failed; overlay apply\n", 11); |
|
} |
|
|
|
#if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY) |
|
|
|
struct unittest_i2c_bus_data { |
|
struct platform_device *pdev; |
|
struct i2c_adapter adap; |
|
}; |
|
|
|
static int unittest_i2c_master_xfer(struct i2c_adapter *adap, |
|
struct i2c_msg *msgs, int num) |
|
{ |
|
struct unittest_i2c_bus_data *std = i2c_get_adapdata(adap); |
|
|
|
(void)std; |
|
|
|
return num; |
|
} |
|
|
|
static u32 unittest_i2c_functionality(struct i2c_adapter *adap) |
|
{ |
|
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; |
|
} |
|
|
|
static const struct i2c_algorithm unittest_i2c_algo = { |
|
.master_xfer = unittest_i2c_master_xfer, |
|
.functionality = unittest_i2c_functionality, |
|
}; |
|
|
|
static int unittest_i2c_bus_probe(struct platform_device *pdev) |
|
{ |
|
struct device *dev = &pdev->dev; |
|
struct device_node *np = dev->of_node; |
|
struct unittest_i2c_bus_data *std; |
|
struct i2c_adapter *adap; |
|
int ret; |
|
|
|
if (np == NULL) { |
|
dev_err(dev, "No OF data for device\n"); |
|
return -EINVAL; |
|
|
|
} |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
|
|
std = devm_kzalloc(dev, sizeof(*std), GFP_KERNEL); |
|
if (!std) |
|
return -ENOMEM; |
|
|
|
/* link them together */ |
|
std->pdev = pdev; |
|
platform_set_drvdata(pdev, std); |
|
|
|
adap = &std->adap; |
|
i2c_set_adapdata(adap, std); |
|
adap->nr = -1; |
|
strlcpy(adap->name, pdev->name, sizeof(adap->name)); |
|
adap->class = I2C_CLASS_DEPRECATED; |
|
adap->algo = &unittest_i2c_algo; |
|
adap->dev.parent = dev; |
|
adap->dev.of_node = dev->of_node; |
|
adap->timeout = 5 * HZ; |
|
adap->retries = 3; |
|
|
|
ret = i2c_add_numbered_adapter(adap); |
|
if (ret != 0) { |
|
dev_err(dev, "Failed to add I2C adapter\n"); |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int unittest_i2c_bus_remove(struct platform_device *pdev) |
|
{ |
|
struct device *dev = &pdev->dev; |
|
struct device_node *np = dev->of_node; |
|
struct unittest_i2c_bus_data *std = platform_get_drvdata(pdev); |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
i2c_del_adapter(&std->adap); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct of_device_id unittest_i2c_bus_match[] = { |
|
{ .compatible = "unittest-i2c-bus", }, |
|
{}, |
|
}; |
|
|
|
static struct platform_driver unittest_i2c_bus_driver = { |
|
.probe = unittest_i2c_bus_probe, |
|
.remove = unittest_i2c_bus_remove, |
|
.driver = { |
|
.name = "unittest-i2c-bus", |
|
.of_match_table = of_match_ptr(unittest_i2c_bus_match), |
|
}, |
|
}; |
|
|
|
static int unittest_i2c_dev_probe(struct i2c_client *client, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct device *dev = &client->dev; |
|
struct device_node *np = client->dev.of_node; |
|
|
|
if (!np) { |
|
dev_err(dev, "No OF node\n"); |
|
return -EINVAL; |
|
} |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
|
|
return 0; |
|
}; |
|
|
|
static int unittest_i2c_dev_remove(struct i2c_client *client) |
|
{ |
|
struct device *dev = &client->dev; |
|
struct device_node *np = client->dev.of_node; |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
return 0; |
|
} |
|
|
|
static const struct i2c_device_id unittest_i2c_dev_id[] = { |
|
{ .name = "unittest-i2c-dev" }, |
|
{ } |
|
}; |
|
|
|
static struct i2c_driver unittest_i2c_dev_driver = { |
|
.driver = { |
|
.name = "unittest-i2c-dev", |
|
}, |
|
.probe = unittest_i2c_dev_probe, |
|
.remove = unittest_i2c_dev_remove, |
|
.id_table = unittest_i2c_dev_id, |
|
}; |
|
|
|
#if IS_BUILTIN(CONFIG_I2C_MUX) |
|
|
|
static int unittest_i2c_mux_select_chan(struct i2c_mux_core *muxc, u32 chan) |
|
{ |
|
return 0; |
|
} |
|
|
|
static int unittest_i2c_mux_probe(struct i2c_client *client, |
|
const struct i2c_device_id *id) |
|
{ |
|
int i, nchans; |
|
struct device *dev = &client->dev; |
|
struct i2c_adapter *adap = client->adapter; |
|
struct device_node *np = client->dev.of_node, *child; |
|
struct i2c_mux_core *muxc; |
|
u32 reg, max_reg; |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
|
|
if (!np) { |
|
dev_err(dev, "No OF node\n"); |
|
return -EINVAL; |
|
} |
|
|
|
max_reg = (u32)-1; |
|
for_each_child_of_node(np, child) { |
|
if (of_property_read_u32(child, "reg", ®)) |
|
continue; |
|
if (max_reg == (u32)-1 || reg > max_reg) |
|
max_reg = reg; |
|
} |
|
nchans = max_reg == (u32)-1 ? 0 : max_reg + 1; |
|
if (nchans == 0) { |
|
dev_err(dev, "No channels\n"); |
|
return -EINVAL; |
|
} |
|
|
|
muxc = i2c_mux_alloc(adap, dev, nchans, 0, 0, |
|
unittest_i2c_mux_select_chan, NULL); |
|
if (!muxc) |
|
return -ENOMEM; |
|
for (i = 0; i < nchans; i++) { |
|
if (i2c_mux_add_adapter(muxc, 0, i, 0)) { |
|
dev_err(dev, "Failed to register mux #%d\n", i); |
|
i2c_mux_del_adapters(muxc); |
|
return -ENODEV; |
|
} |
|
} |
|
|
|
i2c_set_clientdata(client, muxc); |
|
|
|
return 0; |
|
}; |
|
|
|
static int unittest_i2c_mux_remove(struct i2c_client *client) |
|
{ |
|
struct device *dev = &client->dev; |
|
struct device_node *np = client->dev.of_node; |
|
struct i2c_mux_core *muxc = i2c_get_clientdata(client); |
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
|
i2c_mux_del_adapters(muxc); |
|
return 0; |
|
} |
|
|
|
static const struct i2c_device_id unittest_i2c_mux_id[] = { |
|
{ .name = "unittest-i2c-mux" }, |
|
{ } |
|
}; |
|
|
|
static struct i2c_driver unittest_i2c_mux_driver = { |
|
.driver = { |
|
.name = "unittest-i2c-mux", |
|
}, |
|
.probe = unittest_i2c_mux_probe, |
|
.remove = unittest_i2c_mux_remove, |
|
.id_table = unittest_i2c_mux_id, |
|
}; |
|
|
|
#endif |
|
|
|
static int of_unittest_overlay_i2c_init(void) |
|
{ |
|
int ret; |
|
|
|
ret = i2c_add_driver(&unittest_i2c_dev_driver); |
|
if (unittest(ret == 0, |
|
"could not register unittest i2c device driver\n")) |
|
return ret; |
|
|
|
ret = platform_driver_register(&unittest_i2c_bus_driver); |
|
|
|
if (unittest(ret == 0, |
|
"could not register unittest i2c bus driver\n")) |
|
return ret; |
|
|
|
#if IS_BUILTIN(CONFIG_I2C_MUX) |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"i2c i2c-1: Added multiplexed i2c bus 2"); |
|
|
|
ret = i2c_add_driver(&unittest_i2c_mux_driver); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"i2c i2c-1: Added multiplexed i2c bus 2"); |
|
|
|
if (unittest(ret == 0, |
|
"could not register unittest i2c mux driver\n")) |
|
return ret; |
|
#endif |
|
|
|
return 0; |
|
} |
|
|
|
static void of_unittest_overlay_i2c_cleanup(void) |
|
{ |
|
#if IS_BUILTIN(CONFIG_I2C_MUX) |
|
i2c_del_driver(&unittest_i2c_mux_driver); |
|
#endif |
|
platform_driver_unregister(&unittest_i2c_bus_driver); |
|
i2c_del_driver(&unittest_i2c_dev_driver); |
|
} |
|
|
|
static void __init of_unittest_overlay_i2c_12(void) |
|
{ |
|
int ret; |
|
|
|
/* device should enable */ |
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status"); |
|
|
|
ret = of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 12); |
|
} |
|
|
|
/* test deactivation of device */ |
|
static void __init of_unittest_overlay_i2c_13(void) |
|
{ |
|
int ret; |
|
|
|
EXPECT_BEGIN(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status"); |
|
|
|
/* device should disable */ |
|
ret = of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 13); |
|
} |
|
|
|
/* just check for i2c mux existence */ |
|
static void of_unittest_overlay_i2c_14(void) |
|
{ |
|
} |
|
|
|
static void __init of_unittest_overlay_i2c_15(void) |
|
{ |
|
int ret; |
|
|
|
/* device should enable */ |
|
EXPECT_BEGIN(KERN_INFO, |
|
"i2c i2c-1: Added multiplexed i2c bus 3"); |
|
|
|
ret = of_unittest_apply_overlay_check(15, 15, 0, 1, I2C_OVERLAY); |
|
|
|
EXPECT_END(KERN_INFO, |
|
"i2c i2c-1: Added multiplexed i2c bus 3"); |
|
|
|
if (ret) |
|
return; |
|
|
|
unittest(1, "overlay test %d passed\n", 15); |
|
} |
|
|
|
#else |
|
|
|
static inline void of_unittest_overlay_i2c_14(void) { } |
|
static inline void of_unittest_overlay_i2c_15(void) { } |
|
|
|
#endif |
|
|
|
static void __init of_unittest_overlay(void) |
|
{ |
|
struct device_node *bus_np = NULL; |
|
|
|
if (platform_driver_register(&unittest_driver)) { |
|
unittest(0, "could not register unittest driver\n"); |
|
goto out; |
|
} |
|
|
|
bus_np = of_find_node_by_path(bus_path); |
|
if (bus_np == NULL) { |
|
unittest(0, "could not find bus_path \"%s\"\n", bus_path); |
|
goto out; |
|
} |
|
|
|
if (of_platform_default_populate(bus_np, NULL, NULL)) { |
|
unittest(0, "could not populate bus @ \"%s\"\n", bus_path); |
|
goto out; |
|
} |
|
|
|
if (!of_unittest_device_exists(100, PDEV_OVERLAY)) { |
|
unittest(0, "could not find unittest0 @ \"%s\"\n", |
|
unittest_path(100, PDEV_OVERLAY)); |
|
goto out; |
|
} |
|
|
|
if (of_unittest_device_exists(101, PDEV_OVERLAY)) { |
|
unittest(0, "unittest1 @ \"%s\" should not exist\n", |
|
unittest_path(101, PDEV_OVERLAY)); |
|
goto out; |
|
} |
|
|
|
unittest(1, "basic infrastructure of overlays passed"); |
|
|
|
/* tests in sequence */ |
|
of_unittest_overlay_0(); |
|
of_unittest_overlay_1(); |
|
of_unittest_overlay_2(); |
|
of_unittest_overlay_3(); |
|
of_unittest_overlay_4(); |
|
of_unittest_overlay_5(); |
|
of_unittest_overlay_6(); |
|
of_unittest_overlay_8(); |
|
|
|
of_unittest_overlay_10(); |
|
of_unittest_overlay_11(); |
|
|
|
#if IS_BUILTIN(CONFIG_I2C) |
|
if (unittest(of_unittest_overlay_i2c_init() == 0, "i2c init failed\n")) |
|
goto out; |
|
|
|
of_unittest_overlay_i2c_12(); |
|
of_unittest_overlay_i2c_13(); |
|
of_unittest_overlay_i2c_14(); |
|
of_unittest_overlay_i2c_15(); |
|
|
|
of_unittest_overlay_i2c_cleanup(); |
|
#endif |
|
|
|
of_unittest_overlay_gpio(); |
|
|
|
of_unittest_destroy_tracked_overlays(); |
|
|
|
out: |
|
of_node_put(bus_np); |
|
} |
|
|
|
#else |
|
static inline void __init of_unittest_overlay(void) { } |
|
#endif |
|
|
|
#ifdef CONFIG_OF_OVERLAY |
|
|
|
/* |
|
* __dtb_ot_begin[] and __dtb_ot_end[] are created by cmd_dt_S_dtb |
|
* in scripts/Makefile.lib |
|
*/ |
|
|
|
#define OVERLAY_INFO_EXTERN(name) \ |
|
extern uint8_t __dtb_##name##_begin[]; \ |
|
extern uint8_t __dtb_##name##_end[] |
|
|
|
#define OVERLAY_INFO(overlay_name, expected) \ |
|
{ .dtb_begin = __dtb_##overlay_name##_begin, \ |
|
.dtb_end = __dtb_##overlay_name##_end, \ |
|
.expected_result = expected, \ |
|
.name = #overlay_name, \ |
|
} |
|
|
|
struct overlay_info { |
|
uint8_t *dtb_begin; |
|
uint8_t *dtb_end; |
|
int expected_result; |
|
int overlay_id; |
|
char *name; |
|
}; |
|
|
|
OVERLAY_INFO_EXTERN(overlay_base); |
|
OVERLAY_INFO_EXTERN(overlay); |
|
OVERLAY_INFO_EXTERN(overlay_0); |
|
OVERLAY_INFO_EXTERN(overlay_1); |
|
OVERLAY_INFO_EXTERN(overlay_2); |
|
OVERLAY_INFO_EXTERN(overlay_3); |
|
OVERLAY_INFO_EXTERN(overlay_4); |
|
OVERLAY_INFO_EXTERN(overlay_5); |
|
OVERLAY_INFO_EXTERN(overlay_6); |
|
OVERLAY_INFO_EXTERN(overlay_7); |
|
OVERLAY_INFO_EXTERN(overlay_8); |
|
OVERLAY_INFO_EXTERN(overlay_9); |
|
OVERLAY_INFO_EXTERN(overlay_10); |
|
OVERLAY_INFO_EXTERN(overlay_11); |
|
OVERLAY_INFO_EXTERN(overlay_12); |
|
OVERLAY_INFO_EXTERN(overlay_13); |
|
OVERLAY_INFO_EXTERN(overlay_15); |
|
OVERLAY_INFO_EXTERN(overlay_gpio_01); |
|
OVERLAY_INFO_EXTERN(overlay_gpio_02a); |
|
OVERLAY_INFO_EXTERN(overlay_gpio_02b); |
|
OVERLAY_INFO_EXTERN(overlay_gpio_03); |
|
OVERLAY_INFO_EXTERN(overlay_gpio_04a); |
|
OVERLAY_INFO_EXTERN(overlay_gpio_04b); |
|
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_node); |
|
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_prop); |
|
OVERLAY_INFO_EXTERN(overlay_bad_phandle); |
|
OVERLAY_INFO_EXTERN(overlay_bad_symbol); |
|
|
|
/* entries found by name */ |
|
static struct overlay_info overlays[] = { |
|
OVERLAY_INFO(overlay_base, -9999), |
|
OVERLAY_INFO(overlay, 0), |
|
OVERLAY_INFO(overlay_0, 0), |
|
OVERLAY_INFO(overlay_1, 0), |
|
OVERLAY_INFO(overlay_2, 0), |
|
OVERLAY_INFO(overlay_3, 0), |
|
OVERLAY_INFO(overlay_4, 0), |
|
OVERLAY_INFO(overlay_5, 0), |
|
OVERLAY_INFO(overlay_6, 0), |
|
OVERLAY_INFO(overlay_7, 0), |
|
OVERLAY_INFO(overlay_8, 0), |
|
OVERLAY_INFO(overlay_9, 0), |
|
OVERLAY_INFO(overlay_10, 0), |
|
OVERLAY_INFO(overlay_11, 0), |
|
OVERLAY_INFO(overlay_12, 0), |
|
OVERLAY_INFO(overlay_13, 0), |
|
OVERLAY_INFO(overlay_15, 0), |
|
OVERLAY_INFO(overlay_gpio_01, 0), |
|
OVERLAY_INFO(overlay_gpio_02a, 0), |
|
OVERLAY_INFO(overlay_gpio_02b, 0), |
|
OVERLAY_INFO(overlay_gpio_03, 0), |
|
OVERLAY_INFO(overlay_gpio_04a, 0), |
|
OVERLAY_INFO(overlay_gpio_04b, 0), |
|
OVERLAY_INFO(overlay_bad_add_dup_node, -EINVAL), |
|
OVERLAY_INFO(overlay_bad_add_dup_prop, -EINVAL), |
|
OVERLAY_INFO(overlay_bad_phandle, -EINVAL), |
|
OVERLAY_INFO(overlay_bad_symbol, -EINVAL), |
|
/* end marker */ |
|
{.dtb_begin = NULL, .dtb_end = NULL, .expected_result = 0, .name = NULL} |
|
}; |
|
|
|
static struct device_node *overlay_base_root; |
|
|
|
static void * __init dt_alloc_memory(u64 size, u64 align) |
|
{ |
|
void *ptr = memblock_alloc(size, align); |
|
|
|
if (!ptr) |
|
panic("%s: Failed to allocate %llu bytes align=0x%llx\n", |
|
__func__, size, align); |
|
|
|
return ptr; |
|
} |
|
|
|
/* |
|
* Create base device tree for the overlay unittest. |
|
* |
|
* This is called from very early boot code. |
|
* |
|
* Do as much as possible the same way as done in __unflatten_device_tree |
|
* and other early boot steps for the normal FDT so that the overlay base |
|
* unflattened tree will have the same characteristics as the real tree |
|
* (such as having memory allocated by the early allocator). The goal |
|
* is to test "the real thing" as much as possible, and test "test setup |
|
* code" as little as possible. |
|
* |
|
* Have to stop before resolving phandles, because that uses kmalloc. |
|
*/ |
|
void __init unittest_unflatten_overlay_base(void) |
|
{ |
|
struct overlay_info *info; |
|
u32 data_size; |
|
void *new_fdt; |
|
u32 size; |
|
int found = 0; |
|
const char *overlay_name = "overlay_base"; |
|
|
|
for (info = overlays; info && info->name; info++) { |
|
if (!strcmp(overlay_name, info->name)) { |
|
found = 1; |
|
break; |
|
} |
|
} |
|
if (!found) { |
|
pr_err("no overlay data for %s\n", overlay_name); |
|
return; |
|
} |
|
|
|
info = &overlays[0]; |
|
|
|
if (info->expected_result != -9999) { |
|
pr_err("No dtb 'overlay_base' to attach\n"); |
|
return; |
|
} |
|
|
|
data_size = info->dtb_end - info->dtb_begin; |
|
if (!data_size) { |
|
pr_err("No dtb 'overlay_base' to attach\n"); |
|
return; |
|
} |
|
|
|
size = fdt_totalsize(info->dtb_begin); |
|
if (size != data_size) { |
|
pr_err("dtb 'overlay_base' header totalsize != actual size"); |
|
return; |
|
} |
|
|
|
new_fdt = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE)); |
|
if (!new_fdt) { |
|
pr_err("alloc for dtb 'overlay_base' failed"); |
|
return; |
|
} |
|
|
|
memcpy(new_fdt, info->dtb_begin, size); |
|
|
|
__unflatten_device_tree(new_fdt, NULL, &overlay_base_root, |
|
dt_alloc_memory, true); |
|
} |
|
|
|
/* |
|
* The purpose of of_unittest_overlay_data_add is to add an |
|
* overlay in the normal fashion. This is a test of the whole |
|
* picture, instead of testing individual elements. |
|
* |
|
* A secondary purpose is to be able to verify that the contents of |
|
* /proc/device-tree/ contains the updated structure and values from |
|
* the overlay. That must be verified separately in user space. |
|
* |
|
* Return 0 on unexpected error. |
|
*/ |
|
static int __init overlay_data_apply(const char *overlay_name, int *overlay_id) |
|
{ |
|
struct overlay_info *info; |
|
int found = 0; |
|
int ret; |
|
u32 size; |
|
|
|
for (info = overlays; info && info->name; info++) { |
|
if (!strcmp(overlay_name, info->name)) { |
|
found = 1; |
|
break; |
|
} |
|
} |
|
if (!found) { |
|
pr_err("no overlay data for %s\n", overlay_name); |
|
return 0; |
|
} |
|
|
|
size = info->dtb_end - info->dtb_begin; |
|
if (!size) |
|
pr_err("no overlay data for %s\n", overlay_name); |
|
|
|
ret = of_overlay_fdt_apply(info->dtb_begin, size, &info->overlay_id); |
|
if (overlay_id) |
|
*overlay_id = info->overlay_id; |
|
if (ret < 0) |
|
goto out; |
|
|
|
pr_debug("%s applied\n", overlay_name); |
|
|
|
out: |
|
if (ret != info->expected_result) |
|
pr_err("of_overlay_fdt_apply() expected %d, ret=%d, %s\n", |
|
info->expected_result, ret, overlay_name); |
|
|
|
return (ret == info->expected_result); |
|
} |
|
|
|
/* |
|
* The purpose of of_unittest_overlay_high_level is to add an overlay |
|
* in the normal fashion. This is a test of the whole picture, |
|
* instead of individual elements. |
|
* |
|
* The first part of the function is _not_ normal overlay usage; it is |
|
* finishing splicing the base overlay device tree into the live tree. |
|
*/ |
|
static __init void of_unittest_overlay_high_level(void) |
|
{ |
|
struct device_node *last_sibling; |
|
struct device_node *np; |
|
struct device_node *of_symbols; |
|
struct device_node *overlay_base_symbols; |
|
struct device_node **pprev; |
|
struct property *prop; |
|
int ret; |
|
|
|
if (!overlay_base_root) { |
|
unittest(0, "overlay_base_root not initialized\n"); |
|
return; |
|
} |
|
|
|
/* |
|
* Could not fixup phandles in unittest_unflatten_overlay_base() |
|
* because kmalloc() was not yet available. |
|
*/ |
|
of_overlay_mutex_lock(); |
|
of_resolve_phandles(overlay_base_root); |
|
of_overlay_mutex_unlock(); |
|
|
|
|
|
/* |
|
* do not allow overlay_base to duplicate any node already in |
|
* tree, this greatly simplifies the code |
|
*/ |
|
|
|
/* |
|
* remove overlay_base_root node "__local_fixups", after |
|
* being used by of_resolve_phandles() |
|
*/ |
|
pprev = &overlay_base_root->child; |
|
for (np = overlay_base_root->child; np; np = np->sibling) { |
|
if (of_node_name_eq(np, "__local_fixups__")) { |
|
*pprev = np->sibling; |
|
break; |
|
} |
|
pprev = &np->sibling; |
|
} |
|
|
|
/* remove overlay_base_root node "__symbols__" if in live tree */ |
|
of_symbols = of_get_child_by_name(of_root, "__symbols__"); |
|
if (of_symbols) { |
|
/* will have to graft properties from node into live tree */ |
|
pprev = &overlay_base_root->child; |
|
for (np = overlay_base_root->child; np; np = np->sibling) { |
|
if (of_node_name_eq(np, "__symbols__")) { |
|
overlay_base_symbols = np; |
|
*pprev = np->sibling; |
|
break; |
|
} |
|
pprev = &np->sibling; |
|
} |
|
} |
|
|
|
for_each_child_of_node(overlay_base_root, np) { |
|
struct device_node *base_child; |
|
for_each_child_of_node(of_root, base_child) { |
|
if (!strcmp(np->full_name, base_child->full_name)) { |
|
unittest(0, "illegal node name in overlay_base %pOFn", |
|
np); |
|
return; |
|
} |
|
} |
|
} |
|
|
|
/* |
|
* overlay 'overlay_base' is not allowed to have root |
|
* properties, so only need to splice nodes into main device tree. |
|
* |
|
* root node of *overlay_base_root will not be freed, it is lost |
|
* memory. |
|
*/ |
|
|
|
for (np = overlay_base_root->child; np; np = np->sibling) |
|
np->parent = of_root; |
|
|
|
mutex_lock(&of_mutex); |
|
|
|
for (last_sibling = np = of_root->child; np; np = np->sibling) |
|
last_sibling = np; |
|
|
|
if (last_sibling) |
|
last_sibling->sibling = overlay_base_root->child; |
|
else |
|
of_root->child = overlay_base_root->child; |
|
|
|
for_each_of_allnodes_from(overlay_base_root, np) |
|
__of_attach_node_sysfs(np); |
|
|
|
if (of_symbols) { |
|
struct property *new_prop; |
|
for_each_property_of_node(overlay_base_symbols, prop) { |
|
|
|
new_prop = __of_prop_dup(prop, GFP_KERNEL); |
|
if (!new_prop) { |
|
unittest(0, "__of_prop_dup() of '%s' from overlay_base node __symbols__", |
|
prop->name); |
|
goto err_unlock; |
|
} |
|
if (__of_add_property(of_symbols, new_prop)) { |
|
kfree(new_prop->name); |
|
kfree(new_prop->value); |
|
kfree(new_prop); |
|
/* "name" auto-generated by unflatten */ |
|
if (!strcmp(prop->name, "name")) |
|
continue; |
|
unittest(0, "duplicate property '%s' in overlay_base node __symbols__", |
|
prop->name); |
|
goto err_unlock; |
|
} |
|
if (__of_add_property_sysfs(of_symbols, new_prop)) { |
|
unittest(0, "unable to add property '%s' in overlay_base node __symbols__ to sysfs", |
|
prop->name); |
|
goto err_unlock; |
|
} |
|
} |
|
} |
|
|
|
mutex_unlock(&of_mutex); |
|
|
|
|
|
/* now do the normal overlay usage test */ |
|
|
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right"); |
|
|
|
ret = overlay_data_apply("overlay", NULL); |
|
|
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status"); |
|
|
|
unittest(ret, "Adding overlay 'overlay' failed\n"); |
|
|
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name"); |
|
|
|
unittest(overlay_data_apply("overlay_bad_add_dup_node", NULL), |
|
"Adding overlay 'overlay_bad_add_dup_node' failed\n"); |
|
|
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller"); |
|
|
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail"); |
|
EXPECT_BEGIN(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name"); |
|
|
|
unittest(overlay_data_apply("overlay_bad_add_dup_prop", NULL), |
|
"Adding overlay 'overlay_bad_add_dup_prop' failed\n"); |
|
|
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail"); |
|
EXPECT_END(KERN_ERR, |
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric"); |
|
|
|
unittest(overlay_data_apply("overlay_bad_phandle", NULL), |
|
"Adding overlay 'overlay_bad_phandle' failed\n"); |
|
|
|
unittest(overlay_data_apply("overlay_bad_symbol", NULL), |
|
"Adding overlay 'overlay_bad_symbol' failed\n"); |
|
|
|
return; |
|
|
|
err_unlock: |
|
mutex_unlock(&of_mutex); |
|
} |
|
|
|
#else |
|
|
|
static inline __init void of_unittest_overlay_high_level(void) {} |
|
|
|
#endif |
|
|
|
static int __init of_unittest(void) |
|
{ |
|
struct device_node *np; |
|
int res; |
|
|
|
pr_info("start of unittest - you will see error messages\n"); |
|
|
|
/* adding data for unittest */ |
|
|
|
if (IS_ENABLED(CONFIG_UML)) |
|
unittest_unflatten_overlay_base(); |
|
|
|
res = unittest_data_add(); |
|
if (res) |
|
return res; |
|
if (!of_aliases) |
|
of_aliases = of_find_node_by_path("/aliases"); |
|
|
|
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
|
if (!np) { |
|
pr_info("No testcase data in device tree; not running tests\n"); |
|
return 0; |
|
} |
|
of_node_put(np); |
|
|
|
of_unittest_check_tree_linkage(); |
|
of_unittest_check_phandles(); |
|
of_unittest_find_node_by_name(); |
|
of_unittest_dynamic(); |
|
of_unittest_parse_phandle_with_args(); |
|
of_unittest_parse_phandle_with_args_map(); |
|
of_unittest_printf(); |
|
of_unittest_property_string(); |
|
of_unittest_property_copy(); |
|
of_unittest_changeset(); |
|
of_unittest_parse_interrupts(); |
|
of_unittest_parse_interrupts_extended(); |
|
of_unittest_dma_get_max_cpu_address(); |
|
of_unittest_parse_dma_ranges(); |
|
of_unittest_pci_dma_ranges(); |
|
of_unittest_match_node(); |
|
of_unittest_platform_populate(); |
|
of_unittest_overlay(); |
|
|
|
/* Double check linkage after removing testcase data */ |
|
of_unittest_check_tree_linkage(); |
|
|
|
of_unittest_overlay_high_level(); |
|
|
|
pr_info("end of unittest - %i passed, %i failed\n", |
|
unittest_results.passed, unittest_results.failed); |
|
|
|
return 0; |
|
} |
|
late_initcall(of_unittest);
|
|
|