// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2018, The Linux Foundation. All rights reserved. */ #include <linux/kernel.h> #include <linux/err.h> #include <linux/platform_device.h> #include <linux/clk-provider.h> #include <linux/regmap.h> #include <linux/module.h> #include <dt-bindings/clock/qcom,apss-ipq.h> #include "common.h" #include "clk-regmap.h" #include "clk-branch.h" #include "clk-alpha-pll.h" #include "clk-rcg.h" enum { P_XO, P_APSS_PLL_EARLY, }; static const struct clk_parent_data parents_apcs_alias0_clk_src[] = { { .fw_name = "xo" }, { .fw_name = "pll" }, }; static const struct parent_map parents_apcs_alias0_clk_src_map[] = { { P_XO, 0 }, { P_APSS_PLL_EARLY, 5 }, }; static struct clk_rcg2 apcs_alias0_clk_src = { .cmd_rcgr = 0x0050, .hid_width = 5, .parent_map = parents_apcs_alias0_clk_src_map, .clkr.hw.init = &(struct clk_init_data){ .name = "apcs_alias0_clk_src", .parent_data = parents_apcs_alias0_clk_src, .num_parents = ARRAY_SIZE(parents_apcs_alias0_clk_src), .ops = &clk_rcg2_mux_closest_ops, .flags = CLK_SET_RATE_PARENT, }, }; static struct clk_branch apcs_alias0_core_clk = { .halt_reg = 0x0058, .clkr = { .enable_reg = 0x0058, .enable_mask = BIT(0), .hw.init = &(struct clk_init_data){ .name = "apcs_alias0_core_clk", .parent_hws = (const struct clk_hw *[]){ &apcs_alias0_clk_src.clkr.hw }, .num_parents = 1, .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, .ops = &clk_branch2_ops, }, }, }; static const struct regmap_config apss_ipq6018_regmap_config = { .reg_bits = 32, .reg_stride = 4, .val_bits = 32, .max_register = 0x1000, .fast_io = true, }; static struct clk_regmap *apss_ipq6018_clks[] = { [APCS_ALIAS0_CLK_SRC] = &apcs_alias0_clk_src.clkr, [APCS_ALIAS0_CORE_CLK] = &apcs_alias0_core_clk.clkr, }; static const struct qcom_cc_desc apss_ipq6018_desc = { .config = &apss_ipq6018_regmap_config, .clks = apss_ipq6018_clks, .num_clks = ARRAY_SIZE(apss_ipq6018_clks), }; static int apss_ipq6018_probe(struct platform_device *pdev) { struct regmap *regmap; regmap = dev_get_regmap(pdev->dev.parent, NULL); if (!regmap) return -ENODEV; return qcom_cc_really_probe(pdev, &apss_ipq6018_desc, regmap); } static struct platform_driver apss_ipq6018_driver = { .probe = apss_ipq6018_probe, .driver = { .name = "qcom,apss-ipq6018-clk", }, }; module_platform_driver(apss_ipq6018_driver); MODULE_DESCRIPTION("QCOM APSS IPQ 6018 CLK Driver"); MODULE_LICENSE("GPL v2");