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[78.88.45.141]) by smtp.gmail.com with ESMTPSA id l19-20020a17090612d300b00a46cffe6d06sm4621697ejb.42.2024.03.26.14.08.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Mar 2024 14:08:38 -0700 (PDT) From: Konrad Dybcio Date: Tue, 26 Mar 2024 22:08:25 +0100 Subject: [PATCH v3 3/5] clk: qcom: Add QCM2290 GPU clock controller driver Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240219-topic-rb1_gpu-v3-3-86f67786539a@linaro.org> References: <20240219-topic-rb1_gpu-v3-0-86f67786539a@linaro.org> In-Reply-To: <20240219-topic-rb1_gpu-v3-0-86f67786539a@linaro.org> To: Bjorn Andersson , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Marijn Suijten , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio , Dmitry Baryshkov X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1711487311; l=13178; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=3GxICnwlFxPTq7M5fbgnwZ7b5zkJd08JGwQSsk7alcs=; b=bZdU+gOzTqtfJTwjYGyL6849lNCPzKmxZRjJRfPTsNc7Zk85YInEuKeoM+vwYQckOIn2Jq4HZ DKM7ybAz/D6DG36Of8XVt/Vj5g6QFeZxDd/kLH1zRrG5fG79/2iDJ6W X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Add a driver for the GPU clock controller block found on the QCM2290 SoC. Reviewed-by: Dmitry Baryshkov Signed-off-by: Konrad Dybcio --- drivers/clk/qcom/Kconfig | 9 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/gpucc-qcm2290.c | 423 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 433 insertions(+) diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 8ab08e7b5b6c..c7ec41a6bd7f 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -65,6 +65,15 @@ config CLK_X1E80100_TCSRCC Support for the TCSR clock controller on X1E80100 devices. Say Y if you want to use peripheral devices such as SD/UFS. +config CLK_QCM2290_GPUCC + tristate "QCM2290 Graphics Clock Controller" + depends on ARM64 || COMPILE_TEST + select CLK_QCM2290_GCC + help + Support for the graphics clock controller on QCM2290 devices. + Say Y if you want to support graphics controller devices and + functionality such as 3D graphics. + config QCOM_A53PLL tristate "MSM8916 A53 PLL" help diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index dec5b6db6860..cee261eb5144 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_CLK_X1E80100_DISPCC) += dispcc-x1e80100.o obj-$(CONFIG_CLK_X1E80100_GCC) += gcc-x1e80100.o obj-$(CONFIG_CLK_X1E80100_GPUCC) += gpucc-x1e80100.o obj-$(CONFIG_CLK_X1E80100_TCSRCC) += tcsrcc-x1e80100.o +obj-$(CONFIG_CLK_QCM2290_GPUCC) += gpucc-qcm2290.o obj-$(CONFIG_IPQ_APSS_PLL) += apss-ipq-pll.o obj-$(CONFIG_IPQ_APSS_6018) += apss-ipq6018.o obj-$(CONFIG_IPQ_GCC_4019) += gcc-ipq4019.o diff --git a/drivers/clk/qcom/gpucc-qcm2290.c b/drivers/clk/qcom/gpucc-qcm2290.c new file mode 100644 index 000000000000..b6e20d63ac85 --- /dev/null +++ b/drivers/clk/qcom/gpucc-qcm2290.c @@ -0,0 +1,423 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2020, The Linux Foundation. All rights reserved. + * Copyright (c) 2024, Linaro Limited + */ + +#include +#include +#include +#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_GCC_AHB_CLK, + DT_BI_TCXO, + DT_GCC_GPU_GPLL0_CLK_SRC, + DT_GCC_GPU_GPLL0_DIV_CLK_SRC, +}; + +enum { + P_BI_TCXO, + P_GPLL0_OUT_MAIN, + P_GPLL0_OUT_MAIN_DIV, + P_GPU_CC_PLL0_2X_DIV_CLK_SRC, + P_GPU_CC_PLL0_OUT_AUX, + P_GPU_CC_PLL0_OUT_AUX2, + P_GPU_CC_PLL0_OUT_MAIN, +}; + +static const struct pll_vco huayra_vco[] = { + { 600000000, 3300000000, 0 }, + { 600000000, 2200000000, 1 }, +}; + +static const struct alpha_pll_config gpu_cc_pll0_config = { + .l = 0x25, + .config_ctl_val = 0x200d4828, + .config_ctl_hi_val = 0x6, + .test_ctl_val = GENMASK(28, 26), + .test_ctl_hi_val = BIT(14), + .user_ctl_val = 0xf, +}; + +static struct clk_alpha_pll gpu_cc_pll0 = { + .offset = 0x0, + .vco_table = huayra_vco, + .num_vco = ARRAY_SIZE(huayra_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_HUAYRA_2290], + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_pll0", + .parent_data = &(const struct clk_parent_data) { + .index = DT_BI_TCXO, + }, + .num_parents = 1, + .ops = &clk_alpha_pll_huayra_ops, + }, + }, +}; + +static const struct parent_map gpu_cc_parent_map_0[] = { + { P_BI_TCXO, 0 }, + { P_GPU_CC_PLL0_OUT_MAIN, 1 }, + { P_GPLL0_OUT_MAIN, 5 }, + { P_GPLL0_OUT_MAIN_DIV, 6 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_0[] = { + { .index = DT_BI_TCXO, }, + { .hw = &gpu_cc_pll0.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_PLL0_2X_DIV_CLK_SRC, 1 }, + { P_GPU_CC_PLL0_OUT_AUX2, 2 }, + { P_GPU_CC_PLL0_OUT_AUX, 3 }, + { P_GPLL0_OUT_MAIN, 5 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_1[] = { + { .index = DT_BI_TCXO, }, + { .hw = &gpu_cc_pll0.clkr.hw, }, + { .hw = &gpu_cc_pll0.clkr.hw, }, + { .hw = &gpu_cc_pll0.clkr.hw, }, + { .index = DT_GCC_GPU_GPLL0_CLK_SRC, }, +}; + +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), + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_rcg2_shared_ops, + }, +}; + +static const struct freq_tbl ftbl_gpu_cc_gx_gfx3d_clk_src[] = { + F(355200000, P_GPU_CC_PLL0_OUT_AUX, 2, 0, 0), + F(537600000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(672000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(844800000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(921600000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(1017600000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(1123200000, 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, + .ops = &clk_rcg2_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_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_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_data = &(const struct clk_parent_data){ + .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_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_data = &(const struct clk_parent_data){ + .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_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 = "gpu_cc_gx_gfx3d_clk", + .parent_data = &(const struct clk_parent_data){ + .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_sleep_clk = { + .halt_reg = 0x1090, + .halt_check = BRANCH_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_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, + .clamp_io_ctrl = 0x1508, + .resets = (unsigned int []){ GPU_GX_BCR }, + .reset_count = 1, + .pd = { + .name = "gpu_gx_gdsc", + }, + .parent = &gpu_cx_gdsc.pd, + .pwrsts = PWRSTS_OFF_ON, + .flags = CLAMP_IO | AON_RESET | SW_RESET, +}; + +static struct clk_regmap *gpu_cc_qcm2290_clocks[] = { + [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr, + [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_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_GX_GFX3D_CLK] = &gpu_cc_gx_gfx3d_clk.clkr, + [GPU_CC_GX_GFX3D_CLK_SRC] = &gpu_cc_gx_gfx3d_clk_src.clkr, + [GPU_CC_PLL0] = &gpu_cc_pll0.clkr, + [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr, + [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr, +}; + +static const struct qcom_reset_map gpu_cc_qcm2290_resets[] = { + [GPU_GX_BCR] = { 0x1008 }, +}; + +static struct gdsc *gpu_cc_qcm2290_gdscs[] = { + [GPU_CX_GDSC] = &gpu_cx_gdsc, + [GPU_GX_GDSC] = &gpu_gx_gdsc, +}; + +static const struct regmap_config gpu_cc_qcm2290_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_qcm2290_desc = { + .config = &gpu_cc_qcm2290_regmap_config, + .clks = gpu_cc_qcm2290_clocks, + .num_clks = ARRAY_SIZE(gpu_cc_qcm2290_clocks), + .resets = gpu_cc_qcm2290_resets, + .num_resets = ARRAY_SIZE(gpu_cc_qcm2290_resets), + .gdscs = gpu_cc_qcm2290_gdscs, + .num_gdscs = ARRAY_SIZE(gpu_cc_qcm2290_gdscs), +}; + +static const struct of_device_id gpu_cc_qcm2290_match_table[] = { + { .compatible = "qcom,qcm2290-gpucc" }, + { } +}; +MODULE_DEVICE_TABLE(of, gpu_cc_qcm2290_match_table); + +static int gpu_cc_qcm2290_probe(struct platform_device *pdev) +{ + struct regmap *regmap; + int ret; + + regmap = qcom_cc_map(pdev, &gpu_cc_qcm2290_desc); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + ret = devm_pm_runtime_enable(&pdev->dev); + if (ret) + return ret; + + ret = devm_pm_clk_create(&pdev->dev); + if (ret) + return ret; + + ret = pm_clk_add(&pdev->dev, NULL); + if (ret < 0) { + dev_err(&pdev->dev, "failed to acquire ahb clock\n"); + return ret; + } + + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret) + return ret; + + clk_huayra_2290_pll_configure(&gpu_cc_pll0, regmap, &gpu_cc_pll0_config); + + regmap_update_bits(regmap, 0x1060, BIT(0), BIT(0)); /* GPU_CC_GX_CXO_CLK */ + + ret = qcom_cc_really_probe(pdev, &gpu_cc_qcm2290_desc, regmap); + if (ret) { + dev_err(&pdev->dev, "Failed to register display clock controller\n"); + goto out_pm_runtime_put; + } + +out_pm_runtime_put: + pm_runtime_put_sync(&pdev->dev); + + return 0; +} + +static struct platform_driver gpu_cc_qcm2290_driver = { + .probe = gpu_cc_qcm2290_probe, + .driver = { + .name = "gpucc-qcm2290", + .of_match_table = gpu_cc_qcm2290_match_table, + }, +}; +module_platform_driver(gpu_cc_qcm2290_driver); + +MODULE_DESCRIPTION("QTI QCM2290 GPU clock controller driver"); +MODULE_LICENSE("GPL");