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106 lines
2.4 KiB
106 lines
2.4 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (c) 2018, The Linux Foundation. All rights reserved. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/err.h> |
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#include <linux/platform_device.h> |
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#include <linux/clk-provider.h> |
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#include <linux/regmap.h> |
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#include <linux/module.h> |
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#include <dt-bindings/clock/qcom,apss-ipq.h> |
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#include "common.h" |
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#include "clk-regmap.h" |
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#include "clk-branch.h" |
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#include "clk-alpha-pll.h" |
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#include "clk-regmap-mux.h" |
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enum { |
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P_XO, |
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P_APSS_PLL_EARLY, |
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}; |
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static const struct clk_parent_data parents_apcs_alias0_clk_src[] = { |
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{ .fw_name = "xo" }, |
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{ .fw_name = "pll" }, |
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}; |
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static const struct parent_map parents_apcs_alias0_clk_src_map[] = { |
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{ P_XO, 0 }, |
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{ P_APSS_PLL_EARLY, 5 }, |
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}; |
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static struct clk_regmap_mux apcs_alias0_clk_src = { |
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.reg = 0x0050, |
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.width = 3, |
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.shift = 7, |
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.parent_map = parents_apcs_alias0_clk_src_map, |
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.clkr.hw.init = &(struct clk_init_data){ |
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.name = "apcs_alias0_clk_src", |
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.parent_data = parents_apcs_alias0_clk_src, |
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.num_parents = 2, |
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.ops = &clk_regmap_mux_closest_ops, |
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.flags = CLK_SET_RATE_PARENT, |
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}, |
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}; |
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static struct clk_branch apcs_alias0_core_clk = { |
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.halt_reg = 0x0058, |
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.clkr = { |
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.enable_reg = 0x0058, |
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.enable_mask = BIT(0), |
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.hw.init = &(struct clk_init_data){ |
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.name = "apcs_alias0_core_clk", |
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.parent_hws = (const struct clk_hw *[]){ |
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&apcs_alias0_clk_src.clkr.hw }, |
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.num_parents = 1, |
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.flags = CLK_SET_RATE_PARENT, |
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.ops = &clk_branch2_ops, |
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}, |
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}, |
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}; |
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static const struct regmap_config apss_ipq6018_regmap_config = { |
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.reg_bits = 32, |
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.reg_stride = 4, |
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.val_bits = 32, |
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.max_register = 0x1000, |
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.fast_io = true, |
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}; |
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static struct clk_regmap *apss_ipq6018_clks[] = { |
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[APCS_ALIAS0_CLK_SRC] = &apcs_alias0_clk_src.clkr, |
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[APCS_ALIAS0_CORE_CLK] = &apcs_alias0_core_clk.clkr, |
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}; |
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static const struct qcom_cc_desc apss_ipq6018_desc = { |
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.config = &apss_ipq6018_regmap_config, |
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.clks = apss_ipq6018_clks, |
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.num_clks = ARRAY_SIZE(apss_ipq6018_clks), |
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}; |
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static int apss_ipq6018_probe(struct platform_device *pdev) |
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{ |
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struct regmap *regmap; |
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regmap = dev_get_regmap(pdev->dev.parent, NULL); |
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if (!regmap) |
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return -ENODEV; |
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return qcom_cc_really_probe(pdev, &apss_ipq6018_desc, regmap); |
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} |
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static struct platform_driver apss_ipq6018_driver = { |
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.probe = apss_ipq6018_probe, |
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.driver = { |
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.name = "qcom,apss-ipq6018-clk", |
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}, |
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}; |
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module_platform_driver(apss_ipq6018_driver); |
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MODULE_DESCRIPTION("QCOM APSS IPQ 6018 CLK Driver"); |
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MODULE_LICENSE("GPL v2");
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