clk: qcom: gpucc: Add support for GPUCC clock driver for LITO (2f45c8dc) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/clk/qcom/Kconfig

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Original line number	Diff line number	Diff line
		@@ -384,3 +384,11 @@ config SM_DISPCC_LITO
		LITO devices.
		Say Y if you want to support display devices and functionality such as
		splash screen.

		config SM_GPUCC_LITO
		tristate "LITO Graphics Clock Controller"
		depends on COMMON_CLK_QCOM
		help
		Support for the graphics clock controller on Qualcomm Technologies, Inc.
		LITO devices.
		Say Y if you want to support graphics controller devices.

drivers/clk/qcom/Makefile

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Original line number	Diff line number	Diff line
		@@ -56,6 +56,7 @@ obj-$(CONFIG_SM_CAMCC_LITO) += camcc-lito.o
		obj-$(CONFIG_SM_DISPCC_LITO) += dispcc-lito.o
		obj-$(CONFIG_SM_GCC_LITO) += gcc-lito.o
		obj-$(CONFIG_SM_VIDEOCC_LITO) += videocc-lito.o
		obj-$(CONFIG_SM_GPUCC_LITO) += gpucc-lito.o
		obj-$(CONFIG_SPMI_PMIC_CLKDIV) += clk-spmi-pmic-div.o

		obj-y += mdss/

drivers/clk/qcom/gpucc-lito.c

0 → 100644

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Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2019, The Linux Foundation. All rights reserved.
		*/

		#define pr_fmt(fmt) "clk: %s: " fmt, __func__

		#include <linux/bitops.h>
		#include <linux/clk.h>
		#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/platform_device.h>
		#include <linux/regmap.h>
		#include <linux/reset-controller.h>

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

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

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

		#define CX_GMU_CBCR_SLEEP_MASK 0xF
		#define CX_GMU_CBCR_SLEEP_SHIFT 4
		#define CX_GMU_CBCR_WAKE_MASK 0xF
		#define CX_GMU_CBCR_WAKE_SHIFT 8

		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 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 char * const gpu_cc_parent_names_0[] = {
		"bi_tcxo",
		"gpu_cc_pll0",
		"gpu_cc_pll1",
		"gcc_gpu_gpll0_clk_src",
		"gcc_gpu_gpll0_div_clk_src",
		"core_bi_pll_test_se",
		};

		static const struct parent_map gpu_cc_parent_map_1[] = {
		{ P_BI_TCXO, 0 },
		{ P_GPLL0_OUT_MAIN, 5 },
		{ P_GPLL0_OUT_MAIN_DIV, 6 },
		{ P_CORE_BI_PLL_TEST_SE, 7 },
		};

		static const char * const gpu_cc_parent_names_1[] = {
		"bi_tcxo",
		"gcc_gpu_gpll0_clk_src",
		"gcc_gpu_gpll0_div_clk_src",
		"core_bi_pll_test_se",
		};

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

		static const struct alpha_pll_config gpu_cc_pll1_config = {
		.l = 0x1A,
		.cal_l = 0x44,
		.alpha = 0xAAA,
		.config_ctl_val = 0x20485699,
		.config_ctl_hi_val = 0x00002261,
		.config_ctl_hi1_val = 0x029A699C,
		.user_ctl_val = 0x00000001,
		.user_ctl_hi_val = 0x00000805,
		.user_ctl_hi1_val = 0x00000000,
		};

		static struct clk_alpha_pll gpu_cc_pll1 = {
		.offset = 0x100,
		.vco_table = lucid_vco,
		.num_vco = ARRAY_SIZE(lucid_vco),
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
		.clkr = {
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_pll1",
		.parent_names = (const char *[]){ "bi_tcxo" },
		.num_parents = 1,
		.ops = &clk_alpha_pll_lucid_ops,
		.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 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,
		.clkr.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_gmu_clk_src",
		.parent_names = gpu_cc_parent_names_0,
		.num_parents = 6,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		.vdd_class = &vdd_cx,
		.num_rate_max = VDD_NUM,
		.rate_max = (unsigned long[VDD_NUM]) {
		[VDD_LOWER] = 200000000,
		[VDD_LOW] = 500000000},
		},
		};

		static const struct freq_tbl ftbl_gpu_cc_rbcpr_clk_src[] = {
		F(19200000, P_BI_TCXO, 1, 0, 0),
		F(50000000, P_GPLL0_OUT_MAIN_DIV, 6, 0, 0),
		{ }
		};

		static struct clk_rcg2 gpu_cc_rbcpr_clk_src = {
		.cmd_rcgr = 0x10b0,
		.mnd_width = 0,
		.hid_width = 5,
		.parent_map = gpu_cc_parent_map_1,
		.freq_tbl = ftbl_gpu_cc_rbcpr_clk_src,
		.clkr.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_rbcpr_clk_src",
		.parent_names = gpu_cc_parent_names_1,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		.vdd_class = &vdd_cx,
		.num_rate_max = VDD_NUM,
		.rate_max = (unsigned long[VDD_NUM]) {
		[VDD_LOWER] = 19200000,
		[VDD_NOMINAL] = 50000000},
		},
		};

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

		static struct clk_branch gpu_cc_crc_ahb_clk = {
		.halt_reg = 0x107c,
		.halt_check = BRANCH_HALT_DELAY,
		.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_apb_clk = {
		.halt_reg = 0x1088,
		.halt_check = BRANCH_HALT_DELAY,
		.clkr = {
		.enable_reg = 0x1088,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_cx_apb_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_names = (const char *[]){
		"gpu_cc_gmu_clk_src",
		},
		.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_DELAY,
		.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_DELAY,
		.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_names = (const char *[]){
		"gpu_cc_gmu_clk_src",
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_gx_vsense_clk = {
		.halt_reg = 0x1058,
		.halt_check = BRANCH_HALT_DELAY,
		.clkr = {
		.enable_reg = 0x1058,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_gx_vsense_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch gpu_cc_rbcpr_clk = {
		.halt_reg = 0x10f0,
		.halt_check = BRANCH_HALT,
		.clkr = {
		.enable_reg = 0x10f0,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_rbcpr_clk",
		.parent_names = (const char *[]){
		"gpu_cc_rbcpr_clk_src",
		},
		.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_DELAY,
		.clkr = {
		.enable_reg = 0x1090,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gpu_cc_sleep_clk",
		.ops = &clk_branch2_ops,
		},
		},
		};

		/* Measure-only clock for gpu_cc_cx_gfx3d_clk. */
		static struct clk_dummy measure_only_gpu_cc_cx_gfx3d_clk = {
		.rrate = 1000,
		.hw.init = &(struct clk_init_data){
		.name = "measure_only_gpu_cc_cx_gfx3d_clk",
		.ops = &clk_dummy_ops,
		},
		};

		/* Measure-only clock for gpu_cc_cx_gfx3d_slv_clk. */
		static struct clk_dummy measure_only_gpu_cc_cx_gfx3d_slv_clk = {
		.rrate = 1000,
		.hw.init = &(struct clk_init_data){
		.name = "measure_only_gpu_cc_cx_gfx3d_slv_clk",
		.ops = &clk_dummy_ops,
		},
		};

		/* Measure-only clock for gpu_cc_gx_gfx3d_clk. */
		static struct clk_dummy measure_only_gpu_cc_gx_gfx3d_clk = {
		.rrate = 1000,
		.hw.init = &(struct clk_init_data){
		.name = "measure_only_gpu_cc_gx_gfx3d_clk",
		.ops = &clk_dummy_ops,
		},
		};

		struct clk_hw *gpu_cc_lito_hws[] = {
		[MEASURE_ONLY_GPU_CC_CX_GFX3D_CLK] =
		&measure_only_gpu_cc_cx_gfx3d_clk.hw,
		[MEASURE_ONLY_GPU_CC_CX_GFX3D_SLV_CLK] =
		&measure_only_gpu_cc_cx_gfx3d_slv_clk.hw,
		[MEASURE_ONLY_GPU_CC_GX_GFX3D_CLK] =
		&measure_only_gpu_cc_gx_gfx3d_clk.hw,
		};

		static struct clk_regmap *gpu_cc_lito_clocks[] = {
		[GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
		[GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
		[GPU_CC_CX_APB_CLK] = &gpu_cc_cx_apb_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_GX_VSENSE_CLK] = &gpu_cc_gx_vsense_clk.clkr,
		[GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
		[GPU_CC_RBCPR_CLK] = &gpu_cc_rbcpr_clk.clkr,
		[GPU_CC_RBCPR_CLK_SRC] = &gpu_cc_rbcpr_clk_src.clkr,
		[GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr,
		};

		static const struct regmap_config gpu_cc_lito_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_lito_desc = {
		.config = &gpu_cc_lito_regmap_config,
		.hwclks = gpu_cc_lito_hws,
		.num_hwclks = ARRAY_SIZE(gpu_cc_lito_hws),
		.clks = gpu_cc_lito_clocks,
		.num_clks = ARRAY_SIZE(gpu_cc_lito_clocks),
		};

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

		static int gpu_cc_lito_probe(struct platform_device *pdev)
		{
		struct regmap *regmap;
		unsigned int value, mask;
		int ret;

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

		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]);
		}

		clk_lucid_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);

		/* Recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */
		mask = CX_GMU_CBCR_WAKE_MASK << CX_GMU_CBCR_WAKE_SHIFT;
		mask \|= CX_GMU_CBCR_SLEEP_MASK << CX_GMU_CBCR_SLEEP_SHIFT;
		value = 0xF << CX_GMU_CBCR_WAKE_SHIFT \| 0xF << CX_GMU_CBCR_SLEEP_SHIFT;
		regmap_update_bits(regmap, gpu_cc_cx_gmu_clk.clkr.enable_reg,
		mask, value);

		ret = qcom_cc_really_probe(pdev, &gpu_cc_lito_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 0;
		}

		static struct platform_driver gpu_cc_lito_driver = {
		.probe = gpu_cc_lito_probe,
		.driver = {
		.name = "gpu_cc-lito",
		.of_match_table = gpu_cc_lito_match_table,
		},
		};

		static int __init gpu_cc_lito_init(void)
		{
		return platform_driver_register(&gpu_cc_lito_driver);
		}
		subsys_initcall(gpu_cc_lito_init);

		static void __exit gpu_cc_lito_exit(void)
		{
		platform_driver_unregister(&gpu_cc_lito_driver);
		}
		module_exit(gpu_cc_lito_exit);

		MODULE_DESCRIPTION("QTI GPU_CC LITO Driver");
		MODULE_LICENSE("GPL v2");
		MODULE_ALIAS("platform:gpu_cc-lito");