OSCL-LXR linux-6.0.1/​drivers/​clk/​qcom/​gpucc-sm8250.c	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
  */
 
 #include <linux/clk-provider.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 
 #include <dt-bindings/clock/qcom,gpucc-sm8250.h>
 
 #include "common.h"
 #include "clk-alpha-pll.h"
 #include "clk-branch.h"
 #include "clk-pll.h"
 #include "clk-rcg.h"
 #include "clk-regmap.h"
 #include "reset.h"
 #include "gdsc.h"
 
 #define CX_GMU_CBCR_SLEEP_MASK      0xf
 #define CX_GMU_CBCR_SLEEP_SHIFT     4
 #define CX_GMU_CBCR_WAKE_MASK       0xf
 #define CX_GMU_CBCR_WAKE_SHIFT      8
 
 enum {
     P_BI_TCXO,
     P_GPLL0_OUT_MAIN,
     P_GPLL0_OUT_MAIN_DIV,
     P_GPU_CC_PLL0_OUT_MAIN,
     P_GPU_CC_PLL1_OUT_MAIN,
 };
 
 static struct pll_vco lucid_vco[] = {
     { 249600000, 2000000000, 0 },
 };
 
 static const 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 = 0x029a699c,
     .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_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 = "gpu_cc_pll1",
             .parent_data =  &(const struct clk_parent_data){
                 .fw_name = "bi_tcxo",
             },
             .num_parents = 1,
             .ops = &clk_alpha_pll_lucid_ops,
         },
     },
 };
 
 static const struct parent_map gpu_cc_parent_map_0[] = {
     { P_BI_TCXO, 0 },
     { P_GPU_CC_PLL1_OUT_MAIN, 3 },
     { P_GPLL0_OUT_MAIN, 5 },
     { P_GPLL0_OUT_MAIN_DIV, 6 },
 };
 
 static const struct clk_parent_data gpu_cc_parent_data_0[] = {
     { .fw_name = "bi_tcxo" },
     { .hw = &gpu_cc_pll1.clkr.hw },
     { .fw_name = "gcc_gpu_gpll0_clk_src" },
     { .fw_name = "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_GPLL0_OUT_MAIN_DIV, 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),
         .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",
             .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",
             .ops = &clk_branch2_ops,
         },
     },
 };
 
 static struct clk_branch gpu_cc_cx_apb_clk = {
     .halt_reg = 0x1088,
     .halt_check = BRANCH_HALT_VOTED,
     .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_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_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_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_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_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,
     .pd = {
         .name = "gpu_gx_gdsc",
         .power_on = gdsc_gx_do_nothing_enable,
     },
     .pwrsts = PWRSTS_OFF_ON,
     .flags = CLAMP_IO | AON_RESET | POLL_CFG_GDSCR,
 };
 
 static struct clk_regmap *gpu_cc_sm8250_clocks[] = {
     [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
     [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_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_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
     [GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
     [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
 };
 
 static const struct qcom_reset_map gpu_cc_sm8250_resets[] = {
     [GPUCC_GPU_CC_ACD_BCR] = { 0x1160 },
     [GPUCC_GPU_CC_CX_BCR] = { 0x1068 },
     [GPUCC_GPU_CC_GFX3D_AON_BCR] = { 0x10a0 },
     [GPUCC_GPU_CC_GMU_BCR] = { 0x111c },
     [GPUCC_GPU_CC_GX_BCR] = { 0x1008 },
     [GPUCC_GPU_CC_XO_BCR] = { 0x1000 },
 };
 
 static struct gdsc *gpu_cc_sm8250_gdscs[] = {
     [GPU_CX_GDSC] = &gpu_cx_gdsc,
     [GPU_GX_GDSC] = &gpu_gx_gdsc,
 };
 
 static const struct regmap_config gpu_cc_sm8250_regmap_config = {
     .reg_bits = 32,
     .reg_stride = 4,
     .val_bits = 32,
     .max_register = 0x8008,
     .fast_io = true,
 };
 
 static const struct qcom_cc_desc gpu_cc_sm8250_desc = {
     .config = &gpu_cc_sm8250_regmap_config,
     .clks = gpu_cc_sm8250_clocks,
     .num_clks = ARRAY_SIZE(gpu_cc_sm8250_clocks),
     .resets = gpu_cc_sm8250_resets,
     .num_resets = ARRAY_SIZE(gpu_cc_sm8250_resets),
     .gdscs = gpu_cc_sm8250_gdscs,
     .num_gdscs = ARRAY_SIZE(gpu_cc_sm8250_gdscs),
 };
 
 static const struct of_device_id gpu_cc_sm8250_match_table[] = {
     { .compatible = "qcom,sm8250-gpucc" },
     { }
 };
 MODULE_DEVICE_TABLE(of, gpu_cc_sm8250_match_table);
 
 static int gpu_cc_sm8250_probe(struct platform_device *pdev)
 {
     struct regmap *regmap;
     unsigned int value, mask;
 
     regmap = qcom_cc_map(pdev, &gpu_cc_sm8250_desc);
     if (IS_ERR(regmap))
         return PTR_ERR(regmap);
 
     clk_lucid_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);
 
     /*
      * Configure gpu_cc_cx_gmu_clk with recommended
      * wakeup/sleep settings
      */
     mask = CX_GMU_CBCR_WAKE_MASK << CX_GMU_CBCR_WAKE_SHIFT;
     mask |= CX_GMU_CBCR_SLEEP_MASK << CX_GMU_CBCR_SLEEP_SHIFT;
     value = 0xf << CX_GMU_CBCR_WAKE_SHIFT | 0xf << CX_GMU_CBCR_SLEEP_SHIFT;
     regmap_update_bits(regmap, 0x1098, mask, value);
 
     return qcom_cc_really_probe(pdev, &gpu_cc_sm8250_desc, regmap);
 }
 
 static struct platform_driver gpu_cc_sm8250_driver = {
     .probe = gpu_cc_sm8250_probe,
     .driver = {
         .name = "sm8250-gpucc",
         .of_match_table = gpu_cc_sm8250_match_table,
     },
 };
 
 static int __init gpu_cc_sm8250_init(void)
 {
     return platform_driver_register(&gpu_cc_sm8250_driver);
 }
 subsys_initcall(gpu_cc_sm8250_init);
 
 static void __exit gpu_cc_sm8250_exit(void)
 {
     platform_driver_unregister(&gpu_cc_sm8250_driver);
 }
 module_exit(gpu_cc_sm8250_exit);
 
 MODULE_DESCRIPTION("QTI GPU_CC SM8250 Driver");
 MODULE_LICENSE("GPL v2");

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