| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2021, The Linux Foundation. All rights reserved. |
| * Copyright (c) 2023, Linaro Limited |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/mod_devicetable.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/regmap.h> |
| |
| #include <dt-bindings/clock/qcom,sm6375-gpucc.h> |
| |
| #include "clk-alpha-pll.h" |
| #include "clk-branch.h" |
| #include "clk-rcg.h" |
| #include "clk-regmap.h" |
| #include "clk-regmap-divider.h" |
| #include "clk-regmap-mux.h" |
| #include "clk-regmap-phy-mux.h" |
| #include "gdsc.h" |
| #include "reset.h" |
| |
| enum { |
| DT_BI_TCXO, |
| DT_GCC_GPU_GPLL0_CLK_SRC, |
| DT_GCC_GPU_GPLL0_DIV_CLK_SRC, |
| DT_GCC_GPU_SNOC_DVM_GFX_CLK, |
| }; |
| |
| enum { |
| P_BI_TCXO, |
| P_GCC_GPU_GPLL0_CLK_SRC, |
| P_GCC_GPU_GPLL0_DIV_CLK_SRC, |
| P_GPU_CC_PLL0_OUT_EVEN, |
| P_GPU_CC_PLL0_OUT_MAIN, |
| P_GPU_CC_PLL0_OUT_ODD, |
| P_GPU_CC_PLL1_OUT_EVEN, |
| P_GPU_CC_PLL1_OUT_MAIN, |
| P_GPU_CC_PLL1_OUT_ODD, |
| }; |
| |
| static const struct pll_vco lucid_vco[] = { |
| { 249600000, 2000000000, 0 }, |
| }; |
| |
| /* 532MHz Configuration */ |
| static const struct alpha_pll_config gpucc_pll0_config = { |
| .l = 0x1b, |
| .alpha = 0xb555, |
| .config_ctl_val = 0x20485699, |
| .config_ctl_hi_val = 0x00002261, |
| .config_ctl_hi1_val = 0x329a299c, |
| .user_ctl_val = 0x00000001, |
| .user_ctl_hi_val = 0x00000805, |
| .user_ctl_hi1_val = 0x00000000, |
| }; |
| |
| static struct clk_alpha_pll gpucc_pll0 = { |
| .offset = 0x0, |
| .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 = "gpucc_pll0", |
| .parent_data = &(const struct clk_parent_data){ |
| .index = P_BI_TCXO, |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_lucid_ops, |
| }, |
| }, |
| }; |
| |
| /* 514MHz Configuration */ |
| static const struct alpha_pll_config gpucc_pll1_config = { |
| .l = 0x1a, |
| .alpha = 0xc555, |
| .config_ctl_val = 0x20485699, |
| .config_ctl_hi_val = 0x00002261, |
| .config_ctl_hi1_val = 0x329a299c, |
| .user_ctl_val = 0x00000001, |
| .user_ctl_hi_val = 0x00000805, |
| .user_ctl_hi1_val = 0x00000000, |
| }; |
| |
| static struct clk_alpha_pll gpucc_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 = "gpucc_pll1", |
| .parent_data = &(const struct clk_parent_data){ |
| .index = P_BI_TCXO, |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_lucid_ops, |
| }, |
| }, |
| }; |
| |
| static const struct parent_map gpucc_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 gpucc_parent_data_0[] = { |
| { .index = P_BI_TCXO }, |
| { .hw = &gpucc_pll0.clkr.hw }, |
| { .hw = &gpucc_pll1.clkr.hw }, |
| { .index = DT_GCC_GPU_GPLL0_CLK_SRC }, |
| { .index = DT_GCC_GPU_GPLL0_DIV_CLK_SRC }, |
| }; |
| |
| static const struct parent_map gpucc_parent_map_1[] = { |
| { P_BI_TCXO, 0 }, |
| { P_GPU_CC_PLL0_OUT_EVEN, 1 }, |
| { P_GPU_CC_PLL0_OUT_ODD, 2 }, |
| { P_GPU_CC_PLL1_OUT_EVEN, 3 }, |
| { P_GPU_CC_PLL1_OUT_ODD, 4 }, |
| { P_GCC_GPU_GPLL0_CLK_SRC, 5 }, |
| }; |
| |
| static const struct clk_parent_data gpucc_parent_data_1[] = { |
| { .index = P_BI_TCXO }, |
| { .hw = &gpucc_pll0.clkr.hw }, |
| { .hw = &gpucc_pll0.clkr.hw }, |
| { .hw = &gpucc_pll1.clkr.hw }, |
| { .hw = &gpucc_pll1.clkr.hw }, |
| { .index = DT_GCC_GPU_GPLL0_CLK_SRC }, |
| }; |
| |
| static const struct freq_tbl ftbl_gpucc_gmu_clk_src[] = { |
| F(200000000, P_GCC_GPU_GPLL0_DIV_CLK_SRC, 1.5, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 gpucc_gmu_clk_src = { |
| .cmd_rcgr = 0x1120, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpucc_parent_map_0, |
| .freq_tbl = ftbl_gpucc_gmu_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "gpucc_gmu_clk_src", |
| .parent_data = gpucc_parent_data_0, |
| .num_parents = ARRAY_SIZE(gpucc_parent_data_0), |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_gpucc_gx_gfx3d_clk_src[] = { |
| F(266000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| F(390000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| F(490000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| F(650000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| F(770000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| F(840000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| F(900000000, P_GPU_CC_PLL0_OUT_EVEN, 2, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 gpucc_gx_gfx3d_clk_src = { |
| .cmd_rcgr = 0x101c, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpucc_parent_map_1, |
| .freq_tbl = ftbl_gpucc_gx_gfx3d_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "gpucc_gx_gfx3d_clk_src", |
| .parent_data = gpucc_parent_data_1, |
| .num_parents = ARRAY_SIZE(gpucc_parent_data_1), |
| .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_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 = "gpucc_ahb_clk", |
| .flags = CLK_IS_CRITICAL, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_cx_gfx3d_clk = { |
| .halt_reg = 0x10a4, |
| .halt_check = BRANCH_HALT_DELAY, |
| .clkr = { |
| .enable_reg = 0x10a4, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_cx_gfx3d_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &gpucc_gx_gfx3d_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_cx_gfx3d_slv_clk = { |
| .halt_reg = 0x10a8, |
| .halt_check = BRANCH_HALT_DELAY, |
| .clkr = { |
| .enable_reg = 0x10a8, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_cx_gfx3d_slv_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &gpucc_gx_gfx3d_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_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 = "gpucc_cx_gmu_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &gpucc_gmu_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_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 = "gpucc_cx_snoc_dvm_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .index = DT_GCC_GPU_SNOC_DVM_GFX_CLK, |
| }, |
| .num_parents = 1, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_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 = "gpucc_cxo_aon_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_cxo_clk = { |
| .halt_reg = 0x109c, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x109c, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_cxo_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_gx_cxo_clk = { |
| .halt_reg = 0x1060, |
| .halt_check = BRANCH_HALT_DELAY, |
| .clkr = { |
| .enable_reg = 0x1060, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_gx_cxo_clk", |
| .flags = CLK_IS_CRITICAL, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_gx_gfx3d_clk = { |
| .halt_reg = 0x1054, |
| .halt_check = BRANCH_HALT_DELAY, |
| .clkr = { |
| .enable_reg = 0x1054, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_gx_gfx3d_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &gpucc_gx_gfx3d_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_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 = "gpucc_gx_gmu_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &gpucc_gmu_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_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 = "gpucc_sleep_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct gdsc gpu_cx_gdsc = { |
| .gdscr = 0x106c, |
| .gds_hw_ctrl = 0x1540, |
| .clk_dis_wait_val = 8, |
| .pd = { |
| .name = "gpu_cx_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = VOTABLE, |
| }; |
| |
| static struct gdsc gpu_gx_gdsc = { |
| .gdscr = 0x100c, |
| .clamp_io_ctrl = 0x1508, |
| .resets = (unsigned int []){ GPU_GX_BCR, GPU_ACD_BCR, GPU_GX_ACD_MISC_BCR }, |
| .reset_count = 3, |
| .pd = { |
| .name = "gpu_gx_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = CLAMP_IO | SW_RESET | AON_RESET, |
| }; |
| |
| static struct clk_regmap *gpucc_sm6375_clocks[] = { |
| [GPU_CC_AHB_CLK] = &gpucc_ahb_clk.clkr, |
| [GPU_CC_CX_GFX3D_CLK] = &gpucc_cx_gfx3d_clk.clkr, |
| [GPU_CC_CX_GFX3D_SLV_CLK] = &gpucc_cx_gfx3d_slv_clk.clkr, |
| [GPU_CC_CX_GMU_CLK] = &gpucc_cx_gmu_clk.clkr, |
| [GPU_CC_CX_SNOC_DVM_CLK] = &gpucc_cx_snoc_dvm_clk.clkr, |
| [GPU_CC_CXO_AON_CLK] = &gpucc_cxo_aon_clk.clkr, |
| [GPU_CC_CXO_CLK] = &gpucc_cxo_clk.clkr, |
| [GPU_CC_GMU_CLK_SRC] = &gpucc_gmu_clk_src.clkr, |
| [GPU_CC_GX_CXO_CLK] = &gpucc_gx_cxo_clk.clkr, |
| [GPU_CC_GX_GFX3D_CLK] = &gpucc_gx_gfx3d_clk.clkr, |
| [GPU_CC_GX_GFX3D_CLK_SRC] = &gpucc_gx_gfx3d_clk_src.clkr, |
| [GPU_CC_GX_GMU_CLK] = &gpucc_gx_gmu_clk.clkr, |
| [GPU_CC_PLL0] = &gpucc_pll0.clkr, |
| [GPU_CC_PLL1] = &gpucc_pll1.clkr, |
| [GPU_CC_SLEEP_CLK] = &gpucc_sleep_clk.clkr, |
| }; |
| |
| static const struct qcom_reset_map gpucc_sm6375_resets[] = { |
| [GPU_GX_BCR] = { 0x1008 }, |
| [GPU_ACD_BCR] = { 0x1160 }, |
| [GPU_GX_ACD_MISC_BCR] = { 0x8004 }, |
| }; |
| |
| static struct gdsc *gpucc_sm6375_gdscs[] = { |
| [GPU_CX_GDSC] = &gpu_cx_gdsc, |
| [GPU_GX_GDSC] = &gpu_gx_gdsc, |
| }; |
| |
| static const struct regmap_config gpucc_sm6375_regmap_config = { |
| .reg_bits = 32, |
| .reg_stride = 4, |
| .val_bits = 32, |
| .max_register = 0x9000, |
| .fast_io = true, |
| }; |
| |
| static const struct qcom_cc_desc gpucc_sm6375_desc = { |
| .config = &gpucc_sm6375_regmap_config, |
| .clks = gpucc_sm6375_clocks, |
| .num_clks = ARRAY_SIZE(gpucc_sm6375_clocks), |
| .resets = gpucc_sm6375_resets, |
| .num_resets = ARRAY_SIZE(gpucc_sm6375_resets), |
| .gdscs = gpucc_sm6375_gdscs, |
| .num_gdscs = ARRAY_SIZE(gpucc_sm6375_gdscs), |
| }; |
| |
| static const struct of_device_id gpucc_sm6375_match_table[] = { |
| { .compatible = "qcom,sm6375-gpucc" }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, gpucc_sm6375_match_table); |
| |
| static int gpucc_sm6375_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, &gpucc_sm6375_desc); |
| if (IS_ERR(regmap)) { |
| pm_runtime_put(&pdev->dev); |
| return PTR_ERR(regmap); |
| } |
| |
| clk_lucid_pll_configure(&gpucc_pll0, regmap, &gpucc_pll0_config); |
| clk_lucid_pll_configure(&gpucc_pll1, regmap, &gpucc_pll1_config); |
| |
| ret = qcom_cc_really_probe(&pdev->dev, &gpucc_sm6375_desc, regmap); |
| pm_runtime_put(&pdev->dev); |
| |
| return ret; |
| } |
| |
| static struct platform_driver gpucc_sm6375_driver = { |
| .probe = gpucc_sm6375_probe, |
| .driver = { |
| .name = "gpucc-sm6375", |
| .of_match_table = gpucc_sm6375_match_table, |
| }, |
| }; |
| module_platform_driver(gpucc_sm6375_driver); |
| |
| MODULE_DESCRIPTION("QTI GPUCC SM6375 Driver"); |
| MODULE_LICENSE("GPL"); |
