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[104.57.184.186]) by smtp.gmail.com with ESMTPSA id l17-20020a9d7351000000b006370c0e5be0sm1009517otk.48.2022.08.10.21.26.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Aug 2022 21:26:20 -0700 (PDT) From: Bjorn Andersson To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Stephen Boyd , Taniya Das Cc: Michael Turquette , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] clk: qcom: Add SC8280XP GPU clock controller Date: Wed, 10 Aug 2022 21:28:55 -0700 Message-Id: <20220811042855.3867774-3-bjorn.andersson@linaro.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220811042855.3867774-1-bjorn.andersson@linaro.org> References: <20220811042855.3867774-1-bjorn.andersson@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add driver for the GPU clock controller in the Qualcomm SC8280XP platform. Signed-off-by: Bjorn Andersson Reviewed-by: Konrad Dybcio --- drivers/clk/qcom/Kconfig | 8 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/gpucc-sc8280xp.c | 460 ++++++++++++++++++++++++++++++ 3 files changed, 469 insertions(+) create mode 100644 drivers/clk/qcom/gpucc-sc8280xp.c diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 7ea5c2208a86..64a9cf245295 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -454,6 +454,14 @@ config SC_GPUCC_7280 Say Y if you want to support graphics controller devices and functionality such as 3D graphics. +config SC_GPUCC_8280XP + tristate "SC8280XP Graphics Clock Controller" + select SC_GCC_8280XP + help + Support for the graphics clock controller on SC8280XP devices. + Say Y if you want to support graphics controller devices and + functionality such as 3D graphics. + config SC_LPASSCC_7280 tristate "SC7280 Low Power Audio Subsystem (LPASS) Clock Controller" select SC_GCC_7280 diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index 4fd88ee7679b..6cdb05152548 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -72,6 +72,7 @@ obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o obj-$(CONFIG_SC_GCC_8280XP) += gcc-sc8280xp.o obj-$(CONFIG_SC_GPUCC_7180) += gpucc-sc7180.o obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o +obj-$(CONFIG_SC_GPUCC_8280XP) += gpucc-sc8280xp.o obj-$(CONFIG_SC_LPASSCC_7280) += lpasscc-sc7280.o obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o obj-$(CONFIG_SC_LPASS_CORECC_7280) += lpasscorecc-sc7280.o lpassaudiocc-sc7280.o diff --git a/drivers/clk/qcom/gpucc-sc8280xp.c b/drivers/clk/qcom/gpucc-sc8280xp.c new file mode 100644 index 000000000000..555fd4ff58ab --- /dev/null +++ b/drivers/clk/qcom/gpucc-sc8280xp.c @@ -0,0 +1,460 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include + +#include + +#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 = &(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 = &(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 = &(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 = &(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 = &(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 = &(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 = &(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 = &(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 = &(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 = &(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_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_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 = &(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 = &(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 = &(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 = &(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; + + regmap = qcom_cc_map(pdev, &gpu_cc_sc8280xp_desc); + if (IS_ERR(regmap)) + 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)); + + return qcom_cc_really_probe(pdev, &gpu_cc_sc8280xp_desc, regmap); +} + +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");