drivers/clk/qcom/videocc-sdm845.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #include <linux/clk-provider.h>
   7 #include <linux/module.h>
   8 #include <linux/platform_device.h>
   9 #include <linux/regmap.h>
  10
  11 #include <dt-bindings/clock/qcom,videocc-sdm845.h>
  12
  13 #include "common.h"
  14 #include "clk-alpha-pll.h"
  15 #include "clk-branch.h"
  16 #include "clk-rcg.h"
  17 #include "clk-regmap.h"
  18 #include "clk-pll.h"
  19 #include "gdsc.h"
  20
  21 enum {
  22         P_BI_TCXO,
  23         P_CORE_BI_PLL_TEST_SE,
  24         P_VIDEO_PLL0_OUT_EVEN,
  25         P_VIDEO_PLL0_OUT_MAIN,
  26         P_VIDEO_PLL0_OUT_ODD,
  27 };
  28
  29 static const struct parent_map video_cc_parent_map_0[] = {
  30         { P_BI_TCXO, 0 },
  31         { P_VIDEO_PLL0_OUT_MAIN, 1 },
  32         { P_VIDEO_PLL0_OUT_EVEN, 2 },
  33         { P_VIDEO_PLL0_OUT_ODD, 3 },
  34         { P_CORE_BI_PLL_TEST_SE, 4 },
  35 };
  36
  37 static const char * const video_cc_parent_names_0[] = {
  38         "bi_tcxo",
  39         "video_pll0",
  40         "video_pll0_out_even",
  41         "video_pll0_out_odd",
  42         "core_bi_pll_test_se",
  43 };
  44
  45 static const struct alpha_pll_config video_pll0_config = {
  46         .l = 0x10,
  47         .alpha = 0xaaab,
  48 };
  49
  50 static struct clk_alpha_pll video_pll0 = {
  51         .offset = 0x42c,
  52         .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA],
  53         .clkr = {
  54                 .hw.init = &(struct clk_init_data){
  55                         .name = "video_pll0",
  56                         .parent_names = (const char *[]){ "bi_tcxo" },
  57                         .num_parents = 1,
  58                         .ops = &clk_alpha_pll_fabia_ops,
  59                 },
  60         },
  61 };
  62
  63 static const struct freq_tbl ftbl_video_cc_venus_clk_src[] = {
  64         F(100000000, P_VIDEO_PLL0_OUT_MAIN, 4, 0, 0),
  65         F(200000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
  66         F(330000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  67         F(404000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  68         F(444000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  69         F(533000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  70         { }
  71 };
  72
  73 static struct clk_rcg2 video_cc_venus_clk_src = {
  74         .cmd_rcgr = 0x7f0,
  75         .mnd_width = 0,
  76         .hid_width = 5,
  77         .parent_map = video_cc_parent_map_0,
  78         .freq_tbl = ftbl_video_cc_venus_clk_src,
  79         .clkr.hw.init = &(struct clk_init_data){
  80                 .name = "video_cc_venus_clk_src",
  81                 .parent_names = video_cc_parent_names_0,
  82                 .num_parents = 5,
  83                 .flags = CLK_SET_RATE_PARENT,
  84                 .ops = &clk_rcg2_shared_ops,
  85         },
  86 };
  87
  88 static struct clk_branch video_cc_apb_clk = {
  89         .halt_reg = 0x990,
  90         .halt_check = BRANCH_HALT,
  91         .clkr = {
  92                 .enable_reg = 0x990,
  93                 .enable_mask = BIT(0),
  94                 .hw.init = &(struct clk_init_data){
  95                         .name = "video_cc_apb_clk",
  96                         .ops = &clk_branch2_ops,
  97                 },
  98         },
  99 };
 100
 101 static struct clk_branch video_cc_at_clk = {
 102         .halt_reg = 0x9f0,
 103         .halt_check = BRANCH_HALT,
 104         .clkr = {
 105                 .enable_reg = 0x9f0,
 106                 .enable_mask = BIT(0),
 107                 .hw.init = &(struct clk_init_data){
 108                         .name = "video_cc_at_clk",
 109                         .ops = &clk_branch2_ops,
 110                 },
 111         },
 112 };
 113
 114 static struct clk_branch video_cc_qdss_trig_clk = {
 115         .halt_reg = 0x970,
 116         .halt_check = BRANCH_HALT,
 117         .clkr = {
 118                 .enable_reg = 0x970,
 119                 .enable_mask = BIT(0),
 120                 .hw.init = &(struct clk_init_data){
 121                         .name = "video_cc_qdss_trig_clk",
 122                         .ops = &clk_branch2_ops,
 123                 },
 124         },
 125 };
 126
 127 static struct clk_branch video_cc_qdss_tsctr_div8_clk = {
 128         .halt_reg = 0x9d0,
 129         .halt_check = BRANCH_HALT,
 130         .clkr = {
 131                 .enable_reg = 0x9d0,
 132                 .enable_mask = BIT(0),
 133                 .hw.init = &(struct clk_init_data){
 134                         .name = "video_cc_qdss_tsctr_div8_clk",
 135                         .ops = &clk_branch2_ops,
 136                 },
 137         },
 138 };
 139
 140 static struct clk_branch video_cc_vcodec0_axi_clk = {
 141         .halt_reg = 0x930,
 142         .halt_check = BRANCH_HALT,
 143         .clkr = {
 144                 .enable_reg = 0x930,
 145                 .enable_mask = BIT(0),
 146                 .hw.init = &(struct clk_init_data){
 147                         .name = "video_cc_vcodec0_axi_clk",
 148                         .ops = &clk_branch2_ops,
 149                 },
 150         },
 151 };
 152
 153 static struct clk_branch video_cc_vcodec0_core_clk = {
 154         .halt_reg = 0x890,
 155         .halt_check = BRANCH_VOTED,
 156         .clkr = {
 157                 .enable_reg = 0x890,
 158                 .enable_mask = BIT(0),
 159                 .hw.init = &(struct clk_init_data){
 160                         .name = "video_cc_vcodec0_core_clk",
 161                         .parent_names = (const char *[]){
 162                                 "video_cc_venus_clk_src",
 163                         },
 164                         .num_parents = 1,
 165                         .flags = CLK_SET_RATE_PARENT,
 166                         .ops = &clk_branch2_ops,
 167                 },
 168         },
 169 };
 170
 171 static struct clk_branch video_cc_vcodec1_axi_clk = {
 172         .halt_reg = 0x950,
 173         .halt_check = BRANCH_HALT,
 174         .clkr = {
 175                 .enable_reg = 0x950,
 176                 .enable_mask = BIT(0),
 177                 .hw.init = &(struct clk_init_data){
 178                         .name = "video_cc_vcodec1_axi_clk",
 179                         .ops = &clk_branch2_ops,
 180                 },
 181         },
 182 };
 183
 184 static struct clk_branch video_cc_vcodec1_core_clk = {
 185         .halt_reg = 0x8d0,
 186         .halt_check = BRANCH_VOTED,
 187         .clkr = {
 188                 .enable_reg = 0x8d0,
 189                 .enable_mask = BIT(0),
 190                 .hw.init = &(struct clk_init_data){
 191                         .name = "video_cc_vcodec1_core_clk",
 192                         .parent_names = (const char *[]){
 193                                 "video_cc_venus_clk_src",
 194                         },
 195                         .num_parents = 1,
 196                         .flags = CLK_SET_RATE_PARENT,
 197                         .ops = &clk_branch2_ops,
 198                 },
 199         },
 200 };
 201
 202 static struct clk_branch video_cc_venus_ahb_clk = {
 203         .halt_reg = 0x9b0,
 204         .halt_check = BRANCH_HALT,
 205         .clkr = {
 206                 .enable_reg = 0x9b0,
 207                 .enable_mask = BIT(0),
 208                 .hw.init = &(struct clk_init_data){
 209                         .name = "video_cc_venus_ahb_clk",
 210                         .ops = &clk_branch2_ops,
 211                 },
 212         },
 213 };
 214
 215 static struct clk_branch video_cc_venus_ctl_axi_clk = {
 216         .halt_reg = 0x910,
 217         .halt_check = BRANCH_HALT,
 218         .clkr = {
 219                 .enable_reg = 0x910,
 220                 .enable_mask = BIT(0),
 221                 .hw.init = &(struct clk_init_data){
 222                         .name = "video_cc_venus_ctl_axi_clk",
 223                         .ops = &clk_branch2_ops,
 224                 },
 225         },
 226 };
 227
 228 static struct clk_branch video_cc_venus_ctl_core_clk = {
 229         .halt_reg = 0x850,
 230         .halt_check = BRANCH_HALT,
 231         .clkr = {
 232                 .enable_reg = 0x850,
 233                 .enable_mask = BIT(0),
 234                 .hw.init = &(struct clk_init_data){
 235                         .name = "video_cc_venus_ctl_core_clk",
 236                         .parent_names = (const char *[]){
 237                                 "video_cc_venus_clk_src",
 238                         },
 239                         .num_parents = 1,
 240                         .flags = CLK_SET_RATE_PARENT,
 241                         .ops = &clk_branch2_ops,
 242                 },
 243         },
 244 };
 245
 246 static struct gdsc venus_gdsc = {
 247         .gdscr = 0x814,
 248         .pd = {
 249                 .name = "venus_gdsc",
 250         },
 251         .cxcs = (unsigned int []){ 0x850, 0x910 },
 252         .cxc_count = 2,
 253         .pwrsts = PWRSTS_OFF_ON,
 254         .flags = POLL_CFG_GDSCR,
 255 };
 256
 257 static struct gdsc vcodec0_gdsc = {
 258         .gdscr = 0x874,
 259         .pd = {
 260                 .name = "vcodec0_gdsc",
 261         },
 262         .cxcs = (unsigned int []){ 0x890, 0x930 },
 263         .cxc_count = 2,
 264         .flags = HW_CTRL | POLL_CFG_GDSCR,
 265         .pwrsts = PWRSTS_OFF_ON,
 266 };
 267
 268 static struct gdsc vcodec1_gdsc = {
 269         .gdscr = 0x8b4,
 270         .pd = {
 271                 .name = "vcodec1_gdsc",
 272         },
 273         .cxcs = (unsigned int []){ 0x8d0, 0x950 },
 274         .cxc_count = 2,
 275         .flags = HW_CTRL | POLL_CFG_GDSCR,
 276         .pwrsts = PWRSTS_OFF_ON,
 277 };
 278
 279 static struct clk_regmap *video_cc_sdm845_clocks[] = {
 280         [VIDEO_CC_APB_CLK] = &video_cc_apb_clk.clkr,
 281         [VIDEO_CC_AT_CLK] = &video_cc_at_clk.clkr,
 282         [VIDEO_CC_QDSS_TRIG_CLK] = &video_cc_qdss_trig_clk.clkr,
 283         [VIDEO_CC_QDSS_TSCTR_DIV8_CLK] = &video_cc_qdss_tsctr_div8_clk.clkr,
 284         [VIDEO_CC_VCODEC0_AXI_CLK] = &video_cc_vcodec0_axi_clk.clkr,
 285         [VIDEO_CC_VCODEC0_CORE_CLK] = &video_cc_vcodec0_core_clk.clkr,
 286         [VIDEO_CC_VCODEC1_AXI_CLK] = &video_cc_vcodec1_axi_clk.clkr,
 287         [VIDEO_CC_VCODEC1_CORE_CLK] = &video_cc_vcodec1_core_clk.clkr,
 288         [VIDEO_CC_VENUS_AHB_CLK] = &video_cc_venus_ahb_clk.clkr,
 289         [VIDEO_CC_VENUS_CLK_SRC] = &video_cc_venus_clk_src.clkr,
 290         [VIDEO_CC_VENUS_CTL_AXI_CLK] = &video_cc_venus_ctl_axi_clk.clkr,
 291         [VIDEO_CC_VENUS_CTL_CORE_CLK] = &video_cc_venus_ctl_core_clk.clkr,
 292         [VIDEO_PLL0] = &video_pll0.clkr,
 293 };
 294
 295 static struct gdsc *video_cc_sdm845_gdscs[] = {
 296         [VENUS_GDSC] = &venus_gdsc,
 297         [VCODEC0_GDSC] = &vcodec0_gdsc,
 298         [VCODEC1_GDSC] = &vcodec1_gdsc,
 299 };
 300
 301 static const struct regmap_config video_cc_sdm845_regmap_config = {
 302         .reg_bits       = 32,
 303         .reg_stride     = 4,
 304         .val_bits       = 32,
 305         .max_register   = 0xb90,
 306         .fast_io        = true,
 307 };
 308
 309 static const struct qcom_cc_desc video_cc_sdm845_desc = {
 310         .config = &video_cc_sdm845_regmap_config,
 311         .clks = video_cc_sdm845_clocks,
 312         .num_clks = ARRAY_SIZE(video_cc_sdm845_clocks),
 313         .gdscs = video_cc_sdm845_gdscs,
 314         .num_gdscs = ARRAY_SIZE(video_cc_sdm845_gdscs),
 315 };
 316
 317 static const struct of_device_id video_cc_sdm845_match_table[] = {
 318         { .compatible = "qcom,sdm845-videocc" },
 319         { }
 320 };
 321 MODULE_DEVICE_TABLE(of, video_cc_sdm845_match_table);
 322
 323 static int video_cc_sdm845_probe(struct platform_device *pdev)
 324 {
 325         struct regmap *regmap;
 326
 327         regmap = qcom_cc_map(pdev, &video_cc_sdm845_desc);
 328         if (IS_ERR(regmap))
 329                 return PTR_ERR(regmap);
 330
 331         clk_fabia_pll_configure(&video_pll0, regmap, &video_pll0_config);
 332
 333         return qcom_cc_really_probe(pdev, &video_cc_sdm845_desc, regmap);
 334 }
 335
 336 static struct platform_driver video_cc_sdm845_driver = {
 337         .probe          = video_cc_sdm845_probe,
 338         .driver         = {
 339                 .name   = "sdm845-videocc",
 340                 .of_match_table = video_cc_sdm845_match_table,
 341         },
 342 };
 343
 344 static int __init video_cc_sdm845_init(void)
 345 {
 346         return platform_driver_register(&video_cc_sdm845_driver);
 347 }
 348 subsys_initcall(video_cc_sdm845_init);
 349
 350 static void __exit video_cc_sdm845_exit(void)
 351 {
 352         platform_driver_unregister(&video_cc_sdm845_driver);
 353 }
 354 module_exit(video_cc_sdm845_exit);
 355
 356 MODULE_LICENSE("GPL v2");