| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2021, The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/regmap.h> |
| |
| #include <dt-bindings/clock/qcom,gpucc-sc8280xp.h> |
| |
| #include "clk-alpha-pll.h" |
| #include "clk-branch.h" |
| #include "clk-rcg.h" |
| #include "clk-regmap-divider.h" |
| #include "common.h" |
| #include "reset.h" |
| #include "gdsc.h" |
| |
| /* Need to match the order of clocks in DT binding */ |
| enum { |
| DT_BI_TCXO, |
| DT_GCC_GPU_GPLL0_CLK_SRC, |
| DT_GCC_GPU_GPLL0_DIV_CLK_SRC, |
| }; |
| |
| enum { |
| P_BI_TCXO, |
| P_GCC_GPU_GPLL0_CLK_SRC, |
| P_GCC_GPU_GPLL0_DIV_CLK_SRC, |
| P_GPU_CC_PLL0_OUT_MAIN, |
| P_GPU_CC_PLL1_OUT_MAIN, |
| }; |
| |
| static const struct clk_parent_data parent_data_tcxo = { .index = DT_BI_TCXO }; |
| |
| static const struct pll_vco lucid_5lpe_vco[] = { |
| { 249600000, 1800000000, 0 }, |
| }; |
| |
| static struct alpha_pll_config gpu_cc_pll0_config = { |
| .l = 0x1c, |
| .alpha = 0xa555, |
| .config_ctl_val = 0x20485699, |
| .config_ctl_hi_val = 0x00002261, |
| .config_ctl_hi1_val = 0x2a9a699c, |
| .test_ctl_val = 0x00000000, |
| .test_ctl_hi_val = 0x00000000, |
| .test_ctl_hi1_val = 0x01800000, |
| .user_ctl_val = 0x00000000, |
| .user_ctl_hi_val = 0x00000805, |
| .user_ctl_hi1_val = 0x00000000, |
| }; |
| |
| static struct clk_alpha_pll gpu_cc_pll0 = { |
| .offset = 0x0, |
| .vco_table = lucid_5lpe_vco, |
| .num_vco = ARRAY_SIZE(lucid_5lpe_vco), |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID], |
| .clkr = { |
| .hw.init = &(const struct clk_init_data){ |
| .name = "gpu_cc_pll0", |
| .parent_data = &parent_data_tcxo, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_lucid_5lpe_ops, |
| }, |
| }, |
| }; |
| |
| static struct alpha_pll_config gpu_cc_pll1_config = { |
| .l = 0x1A, |
| .alpha = 0xaaa, |
| .config_ctl_val = 0x20485699, |
| .config_ctl_hi_val = 0x00002261, |
| .config_ctl_hi1_val = 0x2a9a699c, |
| .test_ctl_val = 0x00000000, |
| .test_ctl_hi_val = 0x00000000, |
| .test_ctl_hi1_val = 0x01800000, |
| .user_ctl_val = 0x00000000, |
| .user_ctl_hi_val = 0x00000805, |
| .user_ctl_hi1_val = 0x00000000, |
| }; |
| |
| static struct clk_alpha_pll gpu_cc_pll1 = { |
| .offset = 0x100, |
| .vco_table = lucid_5lpe_vco, |
| .num_vco = ARRAY_SIZE(lucid_5lpe_vco), |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID], |
| .clkr = { |
| .hw.init = &(const struct clk_init_data){ |
| .name = "gpu_cc_pll1", |
| .parent_data = &parent_data_tcxo, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_lucid_5lpe_ops, |
| }, |
| }, |
| }; |
| |
| 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_GCC_GPU_GPLL0_CLK_SRC, 5 }, |
| { P_GCC_GPU_GPLL0_DIV_CLK_SRC, 6 }, |
| }; |
| |
| static const struct clk_parent_data gpu_cc_parent_data_0[] = { |
| { .index = DT_BI_TCXO }, |
| { .hw = &gpu_cc_pll0.clkr.hw }, |
| { .hw = &gpu_cc_pll1.clkr.hw }, |
| { .index = DT_GCC_GPU_GPLL0_CLK_SRC }, |
| { .index = DT_GCC_GPU_GPLL0_DIV_CLK_SRC }, |
| }; |
| |
| static const struct parent_map gpu_cc_parent_map_1[] = { |
| { P_BI_TCXO, 0 }, |
| { P_GPU_CC_PLL1_OUT_MAIN, 3 }, |
| { P_GCC_GPU_GPLL0_CLK_SRC, 5 }, |
| { P_GCC_GPU_GPLL0_DIV_CLK_SRC, 6 }, |
| }; |
| |
| static const struct clk_parent_data gpu_cc_parent_data_1[] = { |
| { .index = DT_BI_TCXO }, |
| { .hw = &gpu_cc_pll1.clkr.hw }, |
| { .index = DT_GCC_GPU_GPLL0_CLK_SRC }, |
| { .index = DT_GCC_GPU_GPLL0_DIV_CLK_SRC }, |
| }; |
| |
| static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = { |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| F(200000000, P_GCC_GPU_GPLL0_DIV_CLK_SRC, 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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_gmu_clk_src", |
| .parent_data = gpu_cc_parent_data_0, |
| .num_parents = ARRAY_SIZE(gpu_cc_parent_data_0), |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_gpu_cc_hub_clk_src[] = { |
| F(200000000, P_GCC_GPU_GPLL0_CLK_SRC, 3, 0, 0), |
| F(300000000, P_GCC_GPU_GPLL0_CLK_SRC, 2, 0, 0), |
| F(400000000, P_GCC_GPU_GPLL0_CLK_SRC, 1.5, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 gpu_cc_hub_clk_src = { |
| .cmd_rcgr = 0x117c, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpu_cc_parent_map_1, |
| .freq_tbl = ftbl_gpu_cc_hub_clk_src, |
| .clkr.hw.init = &(const struct clk_init_data){ |
| .name = "gpu_cc_hub_clk_src", |
| .parent_data = gpu_cc_parent_data_1, |
| .num_parents = ARRAY_SIZE(gpu_cc_parent_data_1), |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }; |
| |
| static struct clk_regmap_div gpu_cc_hub_ahb_div_clk_src = { |
| .reg = 0x11c0, |
| .shift = 0, |
| .width = 4, |
| .clkr.hw.init = &(const struct clk_init_data) { |
| .name = "gpu_cc_hub_ahb_div_clk_src", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_hub_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_regmap_div_ro_ops, |
| }, |
| }; |
| |
| static struct clk_regmap_div gpu_cc_hub_cx_int_div_clk_src = { |
| .reg = 0x11bc, |
| .shift = 0, |
| .width = 4, |
| .clkr.hw.init = &(const struct clk_init_data) { |
| .name = "gpu_cc_hub_cx_int_div_clk_src", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_hub_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_regmap_div_ro_ops, |
| }, |
| }; |
| |
| 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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_ahb_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_hub_ahb_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_crc_ahb_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_hub_ahb_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_cx_gmu_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_gmu_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_aon_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 = &(const 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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_cxo_aon_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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_gx_gmu_clk", |
| .parent_hws = (const struct clk_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_hlos1_vote_gpu_smmu_clk = { |
| .halt_reg = 0x5000, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x5000, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data){ |
| .name = "gpu_cc_hlos1_vote_gpu_smmu_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_hub_aon_clk = { |
| .halt_reg = 0x1178, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x1178, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data){ |
| .name = "gpu_cc_hub_aon_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_hub_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_aon_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_hub_cx_int_clk = { |
| .halt_reg = 0x1204, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x1204, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data){ |
| .name = "gpu_cc_hub_cx_int_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpu_cc_hub_cx_int_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_aon_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 = &(const struct clk_init_data){ |
| .name = "gpu_cc_sleep_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_regmap *gpu_cc_sc8280xp_clocks[] = { |
| [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_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr, |
| [GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr, |
| [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr, |
| [GPU_CC_HUB_AHB_DIV_CLK_SRC] = &gpu_cc_hub_ahb_div_clk_src.clkr, |
| [GPU_CC_HUB_AON_CLK] = &gpu_cc_hub_aon_clk.clkr, |
| [GPU_CC_HUB_CLK_SRC] = &gpu_cc_hub_clk_src.clkr, |
| [GPU_CC_HUB_CX_INT_CLK] = &gpu_cc_hub_cx_int_clk.clkr, |
| [GPU_CC_HUB_CX_INT_DIV_CLK_SRC] = &gpu_cc_hub_cx_int_div_clk_src.clkr, |
| [GPU_CC_PLL0] = &gpu_cc_pll0.clkr, |
| [GPU_CC_PLL1] = &gpu_cc_pll1.clkr, |
| [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr, |
| }; |
| |
| static struct gdsc cx_gdsc = { |
| .gdscr = 0x106c, |
| .gds_hw_ctrl = 0x1540, |
| .pd = { |
| .name = "cx_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = VOTABLE | RETAIN_FF_ENABLE, |
| }; |
| |
| static struct gdsc gx_gdsc = { |
| .gdscr = 0x100c, |
| .clamp_io_ctrl = 0x1508, |
| .pd = { |
| .name = "gx_gdsc", |
| .power_on = gdsc_gx_do_nothing_enable, |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = CLAMP_IO | RETAIN_FF_ENABLE, |
| }; |
| |
| static struct gdsc *gpu_cc_sc8280xp_gdscs[] = { |
| [GPU_CC_CX_GDSC] = &cx_gdsc, |
| [GPU_CC_GX_GDSC] = &gx_gdsc, |
| }; |
| |
| static const struct regmap_config gpu_cc_sc8280xp_regmap_config = { |
| .reg_bits = 32, |
| .reg_stride = 4, |
| .val_bits = 32, |
| .max_register = 0x8030, |
| .fast_io = true, |
| }; |
| |
| static struct qcom_cc_desc gpu_cc_sc8280xp_desc = { |
| .config = &gpu_cc_sc8280xp_regmap_config, |
| .clks = gpu_cc_sc8280xp_clocks, |
| .num_clks = ARRAY_SIZE(gpu_cc_sc8280xp_clocks), |
| .gdscs = gpu_cc_sc8280xp_gdscs, |
| .num_gdscs = ARRAY_SIZE(gpu_cc_sc8280xp_gdscs), |
| }; |
| |
| static int gpu_cc_sc8280xp_probe(struct platform_device *pdev) |
| { |
| struct regmap *regmap; |
| int ret; |
| |
| ret = devm_pm_runtime_enable(&pdev->dev); |
| if (ret) |
| return ret; |
| |
| ret = pm_runtime_resume_and_get(&pdev->dev); |
| if (ret) |
| return ret; |
| |
| regmap = qcom_cc_map(pdev, &gpu_cc_sc8280xp_desc); |
| if (IS_ERR(regmap)) { |
| pm_runtime_put(&pdev->dev); |
| return PTR_ERR(regmap); |
| } |
| |
| clk_lucid_pll_configure(&gpu_cc_pll0, regmap, &gpu_cc_pll0_config); |
| clk_lucid_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config); |
| |
| /* |
| * Keep the clocks always-ON |
| * GPU_CC_CB_CLK, GPU_CC_CXO_CLK |
| */ |
| regmap_update_bits(regmap, 0x1170, BIT(0), BIT(0)); |
| regmap_update_bits(regmap, 0x109c, BIT(0), BIT(0)); |
| |
| ret = qcom_cc_really_probe(pdev, &gpu_cc_sc8280xp_desc, regmap); |
| pm_runtime_put(&pdev->dev); |
| |
| return ret; |
| } |
| |
| static const struct of_device_id gpu_cc_sc8280xp_match_table[] = { |
| { .compatible = "qcom,sc8280xp-gpucc" }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, gpu_cc_sc8280xp_match_table); |
| |
| static struct platform_driver gpu_cc_sc8280xp_driver = { |
| .probe = gpu_cc_sc8280xp_probe, |
| .driver = { |
| .name = "gpu_cc-sc8280xp", |
| .of_match_table = gpu_cc_sc8280xp_match_table, |
| }, |
| }; |
| module_platform_driver(gpu_cc_sc8280xp_driver); |
| |
| MODULE_DESCRIPTION("Qualcomm SC8280XP GPU clock controller"); |
| MODULE_LICENSE("GPL"); |
