From: Konrad Dybcio Date: Wed, 8 Feb 2023 09:13:36 +0000 (+0100) Subject: clk: qcom: Add GPU clock controller driver for SM6125 X-Git-Tag: v6.6.7~2872^2~4^5^2~47 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a6b18286810cc64419a36e3a6b5d7191f1f9b167;p=platform%2Fkernel%2Flinux-starfive.git clk: qcom: Add GPU clock controller driver for SM6125 Add support for the GPU clock controller found on SM6125. Reviewed-by: Dmitry Baryshkov Signed-off-by: Konrad Dybcio Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230208091340.124641-7-konrad.dybcio@linaro.org --- diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 5ab4b7d..e2875a1 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -798,6 +798,15 @@ config SM_GCC_8550 Say Y if you want to use peripheral devices such as UART, SPI, I2C, USB, SD/UFS, PCIe etc. +config SM_GPUCC_6125 + tristate "SM6125 Graphics Clock Controller" + select SM_GCC_6125 + depends on ARM64 || COMPILE_TEST + help + Support for the graphics clock controller on SM6125 devices. + Say Y if you want to support graphics controller devices and + functionality such as 3D graphics. + config SM_GPUCC_6350 tristate "SM6350 Graphics Clock Controller" select SM_GCC_6350 diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index c743805..110df852 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -112,6 +112,7 @@ obj-$(CONFIG_SM_GCC_8250) += gcc-sm8250.o obj-$(CONFIG_SM_GCC_8350) += gcc-sm8350.o obj-$(CONFIG_SM_GCC_8450) += gcc-sm8450.o obj-$(CONFIG_SM_GCC_8550) += gcc-sm8550.o +obj-$(CONFIG_SM_GPUCC_6125) += gpucc-sm6125.o obj-$(CONFIG_SM_GPUCC_6350) += gpucc-sm6350.o obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o obj-$(CONFIG_SM_GPUCC_8250) += gpucc-sm8250.o diff --git a/drivers/clk/qcom/gpucc-sm6125.c b/drivers/clk/qcom/gpucc-sm6125.c new file mode 100644 index 0000000..d4f1296 --- /dev/null +++ b/drivers/clk/qcom/gpucc-sm6125.c @@ -0,0 +1,424 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2019, The Linux Foundation. All rights reserved. + * Copyright (c) 2023, Linaro Limited + */ + +#include +#include +#include +#include + +#include + +#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, +}; + +enum { + P_BI_TCXO, + P_GPLL0_OUT_MAIN, + P_GPU_CC_PLL0_2X_CLK, + P_GPU_CC_PLL0_OUT_AUX2, + P_GPU_CC_PLL1_OUT_AUX, + P_GPU_CC_PLL1_OUT_AUX2, +}; + +static struct pll_vco gpu_cc_pll_vco[] = { + { 1000000000, 2000000000, 0 }, + { 500000000, 1000000000, 2 }, +}; + +/* 1020MHz configuration */ +static const struct alpha_pll_config gpu_pll0_config = { + .l = 0x35, + .config_ctl_val = 0x4001055b, + .alpha_hi = 0x20, + .alpha = 0x00, + .alpha_en_mask = BIT(24), + .vco_val = 0x0 << 20, + .vco_mask = 0x3 << 20, + .aux2_output_mask = BIT(2), +}; + +/* 930MHz configuration */ +static const struct alpha_pll_config gpu_pll1_config = { + .l = 0x30, + .config_ctl_val = 0x4001055b, + .alpha_hi = 0x70, + .alpha = 0x00, + .alpha_en_mask = BIT(24), + .vco_val = 0x2 << 20, + .vco_mask = 0x3 << 20, + .aux2_output_mask = BIT(2), +}; + +static struct clk_alpha_pll gpu_cc_pll0_out_aux2 = { + .offset = 0x0, + .vco_table = gpu_cc_pll_vco, + .num_vco = ARRAY_SIZE(gpu_cc_pll_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], + .flags = SUPPORTS_DYNAMIC_UPDATE, + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_pll0_out_aux2", + .parent_data = &(const struct clk_parent_data) { + .index = DT_BI_TCXO, + }, + .num_parents = 1, + .ops = &clk_alpha_pll_ops, + }, + }, +}; + +static struct clk_alpha_pll gpu_cc_pll1_out_aux2 = { + .offset = 0x100, + .vco_table = gpu_cc_pll_vco, + .num_vco = ARRAY_SIZE(gpu_cc_pll_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], + .flags = SUPPORTS_DYNAMIC_UPDATE, + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_pll1_out_aux2", + .parent_data = &(const struct clk_parent_data) { + .index = DT_BI_TCXO, + }, + .num_parents = 1, + .ops = &clk_alpha_pll_ops, + }, + }, +}; + +static const struct parent_map gpu_cc_parent_map_0[] = { + { P_BI_TCXO, 0 }, + { P_GPLL0_OUT_MAIN, 5 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_0[] = { + { .index = DT_BI_TCXO }, + { .index = DT_GCC_GPU_GPLL0_CLK_SRC }, +}; + +static const struct parent_map gpu_cc_parent_map_1[] = { + { P_BI_TCXO, 0 }, + { P_GPU_CC_PLL0_OUT_AUX2, 2 }, + { P_GPU_CC_PLL1_OUT_AUX2, 4 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_1[] = { + { .index = DT_BI_TCXO }, + { .hw = &gpu_cc_pll0_out_aux2.clkr.hw }, + { .hw = &gpu_cc_pll1_out_aux2.clkr.hw }, +}; + +static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = { + F(200000000, P_GPLL0_OUT_MAIN, 3, 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_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_gx_gfx3d_clk_src[] = { + F(320000000, P_GPU_CC_PLL1_OUT_AUX2, 2, 0, 0), + F(465000000, P_GPU_CC_PLL1_OUT_AUX2, 2, 0, 0), + F(600000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(745000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(820000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(900000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(950000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + { } +}; + +static struct clk_rcg2 gpu_cc_gx_gfx3d_clk_src = { + .cmd_rcgr = 0x101c, + .mnd_width = 0, + .hid_width = 5, + .parent_map = gpu_cc_parent_map_1, + .freq_tbl = ftbl_gpu_cc_gx_gfx3d_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "gpu_cc_gx_gfx3d_clk_src", + .parent_data = gpu_cc_parent_data_1, + .num_parents = ARRAY_SIZE(gpu_cc_parent_data_1), + .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, + .ops = &clk_rcg2_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_gx_gfx3d_clk = { + .halt_reg = 0x1054, + .halt_check = BRANCH_HALT_SKIP, + .clkr = { + .enable_reg = 0x1054, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_gx_gfx3d_clk", + .parent_hws = (const struct clk_hw*[]) { + &gpu_cc_gx_gfx3d_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_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 = "gpu_cc_cx_gfx3d_clk", + .parent_hws = (const struct clk_hw*[]) { + &gpu_cc_gx_gfx3d_clk.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 = &(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_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_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, + }, + }, +}; + +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_hlos1_vote_gpu_smmu_clk = { + .halt_reg = 0x5000, + .halt_check = BRANCH_VOTED, + .clkr = { + .enable_reg = 0x5000, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_hlos1_vote_gpu_smmu_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct gdsc gpu_cx_gdsc = { + .gdscr = 0x106c, + .gds_hw_ctrl = 0x1540, + .pd = { + .name = "gpu_cx_gdsc", + }, + .pwrsts = PWRSTS_OFF_ON, + .flags = VOTABLE, +}; + +static struct gdsc gpu_gx_gdsc = { + .gdscr = 0x100c, + .pd = { + .name = "gpu_gx_gdsc", + }, + .pwrsts = PWRSTS_OFF_ON, + .flags = VOTABLE, +}; + +static struct clk_regmap *gpu_cc_sm6125_clocks[] = { + [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_GFX3D_CLK] = &gpu_cc_cx_gfx3d_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_PLL0_OUT_AUX2] = &gpu_cc_pll0_out_aux2.clkr, + [GPU_CC_PLL1_OUT_AUX2] = &gpu_cc_pll1_out_aux2.clkr, + [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr, + [GPU_CC_GX_GFX3D_CLK] = &gpu_cc_gx_gfx3d_clk.clkr, + [GPU_CC_GX_GFX3D_CLK_SRC] = &gpu_cc_gx_gfx3d_clk_src.clkr, + [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr, + [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr, +}; + +static struct gdsc *gpucc_sm6125_gdscs[] = { + [GPU_CX_GDSC] = &gpu_cx_gdsc, + [GPU_GX_GDSC] = &gpu_gx_gdsc, +}; + +static const struct regmap_config gpu_cc_sm6125_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0x9000, + .fast_io = true, +}; + +static const struct qcom_cc_desc gpu_cc_sm6125_desc = { + .config = &gpu_cc_sm6125_regmap_config, + .clks = gpu_cc_sm6125_clocks, + .num_clks = ARRAY_SIZE(gpu_cc_sm6125_clocks), + .gdscs = gpucc_sm6125_gdscs, + .num_gdscs = ARRAY_SIZE(gpucc_sm6125_gdscs), +}; + +static const struct of_device_id gpu_cc_sm6125_match_table[] = { + { .compatible = "qcom,sm6125-gpucc" }, + { } +}; +MODULE_DEVICE_TABLE(of, gpu_cc_sm6125_match_table); + +static int gpu_cc_sm6125_probe(struct platform_device *pdev) +{ + struct regmap *regmap; + + regmap = qcom_cc_map(pdev, &gpu_cc_sm6125_desc); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + clk_alpha_pll_configure(&gpu_cc_pll0_out_aux2, regmap, &gpu_pll0_config); + clk_alpha_pll_configure(&gpu_cc_pll1_out_aux2, regmap, &gpu_pll1_config); + + /* Set recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */ + qcom_branch_set_wakeup(regmap, gpu_cc_cx_gmu_clk, 0xf); + qcom_branch_set_sleep(regmap, gpu_cc_cx_gmu_clk, 0xf); + + qcom_branch_set_force_mem_core(regmap, gpu_cc_gx_gfx3d_clk, true); + qcom_branch_set_force_periph_on(regmap, gpu_cc_gx_gfx3d_clk, true); + + return qcom_cc_really_probe(pdev, &gpu_cc_sm6125_desc, regmap); +} + +static struct platform_driver gpu_cc_sm6125_driver = { + .probe = gpu_cc_sm6125_probe, + .driver = { + .name = "gpucc-sm6125", + .of_match_table = gpu_cc_sm6125_match_table, + }, +}; +module_platform_driver(gpu_cc_sm6125_driver); + +MODULE_DESCRIPTION("QTI GPUCC SM6125 Driver"); +MODULE_LICENSE("GPL");