clk: qcom: Add GPU clock driver for SM8150 (ea4cbcb8) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/clk/qcom/Kconfig

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		@@ -299,6 +299,15 @@ config SM_GCC_8150
		Say Y if you want to use peripheral devices such as UART,
		SPI, I2C, USB, SD/UFS, PCIe etc.

		config SM_GPUCC_8150
		tristate "SM8150 Graphics Clock Controller"
		select SM_GCC_8150
		help
		Support for the graphics clock controller on Qualcomm Technologies, Inc.
		sm8150 devices.
		Say Y if you want to support graphics controller devices and
		functionality such as 3D graphics.

		config SPMI_PMIC_CLKDIV
		tristate "SPMI PMIC clkdiv Support"
		depends on SPMI \|\| COMPILE_TEST

drivers/clk/qcom/Makefile

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		@@ -73,6 +73,7 @@ obj-$(CONFIG_SM_DISPCC_SHIMA) += dispcc-shima.o
		obj-$(CONFIG_SM_GCC_8150) += gcc-sm8150.o
		obj-$(CONFIG_SM_GCC_HOLI) += gcc-holi.o
		obj-$(CONFIG_SM_GCC_SHIMA) += gcc-shima.o
		obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o
		obj-$(CONFIG_SM_GPUCC_HOLI) += gpucc-holi.o
		obj-$(CONFIG_SM_GPUCC_SHIMA) += gpucc-shima.o
		obj-$(CONFIG_SM_VIDEOCC_SHIMA) += videocc-shima.o

drivers/clk/qcom/gpucc-sm8150.c

0 → 100644

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		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/clk-provider.h>
		#include <linux/err.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/of_device.h>
		#include <linux/of.h>
		#include <linux/regmap.h>

		#include <dt-bindings/clock/qcom,gpucc-sm8150.h>

		#include "clk-alpha-pll.h"
		#include "clk-branch.h"
		#include "clk-rcg.h"
		#include "clk-regmap.h"
		#include "common.h"
		#include "vdd-level-sm8150.h"

		static DEFINE_VDD_REGULATORS(vdd_cx, VDD_NUM, 1, vdd_corner);
		static DEFINE_VDD_REGULATORS(vdd_mx, VDD_NUM, 1, vdd_corner);

		enum {
		P_BI_TCXO,
		P_CORE_BI_PLL_TEST_SE,
		P_GPLL0_OUT_MAIN,
		P_GPLL0_OUT_MAIN_DIV,
		P_GPU_CC_PLL0_OUT_MAIN,
		P_GPU_CC_PLL1_OUT_MAIN,
		};

		static struct pll_vco trion_vco[] = {
		{ 249600000, 2000000000, 0 },
		};

		/* 500MHz configuration */
		static struct alpha_pll_config gpu_cc_pll1_config = {
		.l = 0x1A,
		.alpha = 0xAAA,
		.config_ctl_val = 0x20485699,
		.config_ctl_hi_val = 0x00002267,
		.config_ctl_hi1_val = 0x00000024,
		.test_ctl_val = 0x00000000,
		.test_ctl_hi_val = 0x00000000,
		.test_ctl_hi1_val = 0x00000020,
		.user_ctl_val = 0x00000000,
		.user_ctl_hi_val = 0x00000805,
		.user_ctl_hi1_val = 0x000000D0,
		};

		static struct clk_alpha_pll gpu_cc_pll1 = {
		.offset = 0x100,
		.vco_table = trion_vco,
		.num_vco = ARRAY_SIZE(trion_vco),
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TRION],
		.config = &gpu_cc_pll1_config,
		.clkr = {
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_pll1",
		.parent_data = &(const struct clk_parent_data){
		.fw_name = "bi_tcxo",
		},
		.num_parents = 1,
		.ops = &clk_trion_pll_ops,
		},
		.vdd_data = {
		.vdd_class = &vdd_mx,
		.num_rate_max = VDD_NUM,
		.rate_max = (unsigned long[VDD_NUM]) {
		[VDD_MIN] = 615000000,
		[VDD_LOW] = 1066000000,
		[VDD_LOW_L1] = 1600000000,
		[VDD_NOMINAL] = 2000000000},
		},
		},
		};

		static const struct parent_map gpu_cc_parent_map_0[] = {
		{ P_BI_TCXO, 0 },
		{ P_GPU_CC_PLL0_OUT_MAIN, 1 },
		{ P_GPU_CC_PLL1_OUT_MAIN, 3 },
		{ P_GPLL0_OUT_MAIN, 5 },
		{ P_GPLL0_OUT_MAIN_DIV, 6 },
		{ P_CORE_BI_PLL_TEST_SE, 7 },
		};

		static const struct clk_parent_data gpu_cc_parent_data_0[] = {
		{ .fw_name = "bi_tcxo" },
		{ .fw_name = "gpu_cc_pll0", .name = "gpu_cc_pll0" },
		{ .hw = &gpu_cc_pll1.clkr.hw },
		{ .fw_name = "gcc_gpu_gpll0_clk_src" },
		{ .fw_name = "gcc_gpu_gpll0_div_clk_src" },
		{ .fw_name = "core_bi_pll_test_se", .name = "core_bi_pll_test_se" },
		};

		static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
		F(19200000, P_BI_TCXO, 1, 0, 0),
		F(200000000, P_GPLL0_OUT_MAIN_DIV, 1.5, 0, 0),
		F(500000000, P_GPU_CC_PLL1_OUT_MAIN, 1, 0, 0),
		{ }
		};

		static struct clk_rcg2 gpu_cc_gmu_clk_src = {
		.cmd_rcgr = 0x1120,
		.mnd_width = 0,
		.hid_width = 5,
		.parent_map = gpu_cc_parent_map_0,
		.freq_tbl = ftbl_gpu_cc_gmu_clk_src,
		.enable_safe_config = true,
		.clkr.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_gmu_clk_src",
		.parent_data = gpu_cc_parent_data_0,
		.num_parents = 6,
		.ops = &clk_rcg2_ops,
		},
		.clkr.vdd_data = {
		.vdd_class = &vdd_cx,
		.num_rate_max = VDD_NUM,
		.rate_max = (unsigned long[VDD_NUM]) {
		[VDD_MIN] = 200000000,
		[VDD_LOW] = 500000000},
		},
		};

		static struct clk_branch gpu_cc_ahb_clk = {
		.halt_reg = 0x1078,
		.halt_check = BRANCH_HALT_DELAY,
		.clkr = {
		.enable_reg = 0x1078,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_ahb_clk",
		.flags = CLK_IS_CRITICAL,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_crc_ahb_clk = {
		.halt_reg = 0x107c,
		.halt_check = BRANCH_HALT_VOTED,
		.clkr = {
		.enable_reg = 0x107c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_crc_ahb_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_cx_gmu_clk = {
		.halt_reg = 0x1098,
		.halt_check = BRANCH_HALT,
		.clkr = {
		.enable_reg = 0x1098,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_cx_gmu_clk",
		.parent_data = &(const struct clk_parent_data){
		.hw = &gpu_cc_gmu_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_cx_snoc_dvm_clk = {
		.halt_reg = 0x108c,
		.halt_check = BRANCH_HALT_VOTED,
		.clkr = {
		.enable_reg = 0x108c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_cx_snoc_dvm_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_cxo_aon_clk = {
		.halt_reg = 0x1004,
		.halt_check = BRANCH_HALT_VOTED,
		.clkr = {
		.enable_reg = 0x1004,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_cxo_aon_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_cxo_clk = {
		.halt_reg = 0x109c,
		.halt_check = BRANCH_HALT,
		.clkr = {
		.enable_reg = 0x109c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_cxo_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_gx_gmu_clk = {
		.halt_reg = 0x1064,
		.halt_check = BRANCH_HALT,
		.clkr = {
		.enable_reg = 0x1064,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_gx_gmu_clk",
		.parent_data = &(const struct clk_parent_data){
		.hw = &gpu_cc_gmu_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_sleep_clk = {
		.halt_reg = 0x1090,
		.halt_check = BRANCH_HALT_VOTED,
		.clkr = {
		.enable_reg = 0x1090,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_sleep_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_regmap *gpu_cc_sm8150_clocks[] = {
		[GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
		[GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
		[GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
		[GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
		[GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr,
		[GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr,
		[GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
		[GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
		[GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
		[GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr,
		};

		static const struct regmap_config gpu_cc_sm8150_regmap_config = {
		.reg_bits = 32,
		.reg_stride = 4,
		.val_bits = 32,
		.max_register = 0x8008,
		.fast_io = true,
		};

		static const struct qcom_cc_desc gpu_cc_sm8150_desc = {
		.config = &gpu_cc_sm8150_regmap_config,
		.clks = gpu_cc_sm8150_clocks,
		.num_clks = ARRAY_SIZE(gpu_cc_sm8150_clocks),
		};

		static const struct of_device_id gpu_cc_sm8150_match_table[] = {
		{ .compatible = "qcom,sm8150-gpucc" },
		{ .compatible = "qcom,sa8155-gpucc" },
		{ }
		};
		MODULE_DEVICE_TABLE(of, gpu_cc_sm8150_match_table);

		static int gpu_cc_sm8150_probe(struct platform_device *pdev)
		{
		struct regmap *regmap;
		int ret;

		vdd_cx.regulator[0] = devm_regulator_get(&pdev->dev, "vdd_cx");
		if (IS_ERR(vdd_cx.regulator[0])) {
		if (PTR_ERR(vdd_cx.regulator[0]) != -EPROBE_DEFER)
		dev_err(&pdev->dev, "Unable to get vdd_cx regulator\n");
		return PTR_ERR(vdd_cx.regulator[0]);
		}

		vdd_mx.regulator[0] = devm_regulator_get(&pdev->dev, "vdd_mx");
		if (IS_ERR(vdd_mx.regulator[0])) {
		if (PTR_ERR(vdd_mx.regulator[0]) != -EPROBE_DEFER)
		dev_err(&pdev->dev, "Unable to get vdd_mx regulator\n");
		return PTR_ERR(vdd_mx.regulator[0]);
		}

		regmap = qcom_cc_map(pdev, &gpu_cc_sm8150_desc);
		if (IS_ERR(regmap))
		return PTR_ERR(regmap);

		clk_trion_pll_configure(&gpu_cc_pll1, regmap, gpu_cc_pll1.config);

		ret = qcom_cc_really_probe(pdev, &gpu_cc_sm8150_desc, regmap);
		if (ret) {
		dev_err(&pdev->dev, "Failed to register GPU CC clocks\n");
		return ret;
		}

		dev_info(&pdev->dev, "Registered GPU CC clocks\n");

		return ret;
		}

		static struct platform_driver gpu_cc_sm8150_driver = {
		.probe = gpu_cc_sm8150_probe,
		.driver = {
		.name = "gpu_cc-sm8150",
		.of_match_table = gpu_cc_sm8150_match_table,
		},
		};

		static int __init gpu_cc_sm8150_init(void)
		{
		return platform_driver_register(&gpu_cc_sm8150_driver);
		}
		subsys_initcall(gpu_cc_sm8150_init);

		static void __exit gpu_cc_sm8150_exit(void)
		{
		platform_driver_unregister(&gpu_cc_sm8150_driver);
		}
		module_exit(gpu_cc_sm8150_exit);

		MODULE_DESCRIPTION("QTI GPU_CC SM8150 Driver");
		MODULE_LICENSE("GPL v2");