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117 lines
2.6 KiB
117 lines
2.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright 2009-2010 Creative Product Design |
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* Marc Reilly [email protected] |
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*/ |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/mfd/core.h> |
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#include <linux/mfd/mc13xxx.h> |
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#include <linux/of.h> |
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#include <linux/of_device.h> |
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#include <linux/of_gpio.h> |
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#include <linux/i2c.h> |
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#include <linux/err.h> |
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#include "mc13xxx.h" |
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static const struct i2c_device_id mc13xxx_i2c_device_id[] = { |
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{ |
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.name = "mc13892", |
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.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, |
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}, { |
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.name = "mc34708", |
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.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, |
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}, { |
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/* sentinel */ |
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} |
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}; |
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MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id); |
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static const struct of_device_id mc13xxx_dt_ids[] = { |
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{ |
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.compatible = "fsl,mc13892", |
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.data = &mc13xxx_variant_mc13892, |
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}, { |
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.compatible = "fsl,mc34708", |
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.data = &mc13xxx_variant_mc34708, |
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}, { |
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/* sentinel */ |
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} |
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}; |
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MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); |
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static const struct regmap_config mc13xxx_regmap_i2c_config = { |
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.reg_bits = 8, |
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.val_bits = 24, |
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.max_register = MC13XXX_NUMREGS, |
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.cache_type = REGCACHE_NONE, |
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}; |
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static int mc13xxx_i2c_probe(struct i2c_client *client, |
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const struct i2c_device_id *id) |
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{ |
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struct mc13xxx *mc13xxx; |
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int ret; |
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mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL); |
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if (!mc13xxx) |
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return -ENOMEM; |
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dev_set_drvdata(&client->dev, mc13xxx); |
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mc13xxx->irq = client->irq; |
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mc13xxx->regmap = devm_regmap_init_i2c(client, |
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&mc13xxx_regmap_i2c_config); |
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if (IS_ERR(mc13xxx->regmap)) { |
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ret = PTR_ERR(mc13xxx->regmap); |
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dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret); |
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return ret; |
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} |
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if (client->dev.of_node) { |
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const struct of_device_id *of_id = |
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of_match_device(mc13xxx_dt_ids, &client->dev); |
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mc13xxx->variant = of_id->data; |
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} else { |
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mc13xxx->variant = (void *)id->driver_data; |
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} |
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return mc13xxx_common_init(&client->dev); |
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} |
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static int mc13xxx_i2c_remove(struct i2c_client *client) |
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{ |
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return mc13xxx_common_exit(&client->dev); |
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} |
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static struct i2c_driver mc13xxx_i2c_driver = { |
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.id_table = mc13xxx_i2c_device_id, |
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.driver = { |
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.name = "mc13xxx", |
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.of_match_table = mc13xxx_dt_ids, |
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}, |
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.probe = mc13xxx_i2c_probe, |
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.remove = mc13xxx_i2c_remove, |
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}; |
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static int __init mc13xxx_i2c_init(void) |
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{ |
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return i2c_add_driver(&mc13xxx_i2c_driver); |
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} |
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subsys_initcall(mc13xxx_i2c_init); |
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static void __exit mc13xxx_i2c_exit(void) |
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{ |
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i2c_del_driver(&mc13xxx_i2c_driver); |
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} |
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module_exit(mc13xxx_i2c_exit); |
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MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC"); |
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MODULE_AUTHOR("Marc Reilly <[email protected]"); |
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MODULE_LICENSE("GPL v2");
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