// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2024, Linaro Limited
*/
#include <linux/clk-provider.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_clock.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,qcm2290-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_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->dev, &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");
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