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 #define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
  22
  23 enum {
  24         P_BI_TCXO,
  25         P_CORE_BI_PLL_TEST_SE,
  26         P_VIDEO_PLL0_OUT_EVEN,
  27         P_VIDEO_PLL0_OUT_MAIN,
  28         P_VIDEO_PLL0_OUT_ODD,
  29 };
  30
  31 static const struct parent_map video_cc_parent_map_0[] = {
  32         { P_BI_TCXO, 0 },
  33         { P_VIDEO_PLL0_OUT_MAIN, 1 },
  34         { P_VIDEO_PLL0_OUT_EVEN, 2 },
  35         { P_VIDEO_PLL0_OUT_ODD, 3 },
  36         { P_CORE_BI_PLL_TEST_SE, 4 },
  37 };
  38
  39 static const char * const video_cc_parent_names_0[] = {
  40         "bi_tcxo",
  41         "video_pll0",
  42         "video_pll0_out_even",
  43         "video_pll0_out_odd",
  44         "core_bi_pll_test_se",
  45 };
  46
  47 static const struct alpha_pll_config video_pll0_config = {
  48         .l = 0x10,
  49         .alpha = 0xaaab,
  50 };
  51
  52 static struct clk_alpha_pll video_pll0 = {
  53         .offset = 0x42c,
  54         .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA],
  55         .clkr = {
  56                 .hw.init = &(struct clk_init_data){
  57                         .name = "video_pll0",
  58                         .parent_names = (const char *[]){ "bi_tcxo" },
  59                         .num_parents = 1,
  60                         .ops = &clk_alpha_pll_fabia_ops,
  61                 },
  62         },
  63 };
  64
  65 static const struct freq_tbl ftbl_video_cc_venus_clk_src[] = {
  66         F(100000000, P_VIDEO_PLL0_OUT_MAIN, 4, 0, 0),
  67         F(200000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
  68         F(330000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  69         F(404000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  70         F(444000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  71         F(533000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
  72         { }
  73 };
  74
  75 static struct clk_rcg2 video_cc_venus_clk_src = {
  76         .cmd_rcgr = 0x7f0,
  77         .mnd_width = 0,
  78         .hid_width = 5,
  79         .parent_map = video_cc_parent_map_0,
  80         .freq_tbl = ftbl_video_cc_venus_clk_src,
  81         .clkr.hw.init = &(struct clk_init_data){
  82                 .name = "video_cc_venus_clk_src",
  83                 .parent_names = video_cc_parent_names_0,
  84                 .num_parents = 5,
  85                 .flags = CLK_SET_RATE_PARENT,
  86                 .ops = &clk_rcg2_shared_ops,
  87         },
  88 };
  89
  90 static struct clk_branch video_cc_apb_clk = {
  91         .halt_reg = 0x990,
  92         .halt_check = BRANCH_HALT,
  93         .clkr = {
  94                 .enable_reg = 0x990,
  95                 .enable_mask = BIT(0),
  96                 .hw.init = &(struct clk_init_data){
  97                         .name = "video_cc_apb_clk",
  98                         .ops = &clk_branch2_ops,
  99                 },
 100         },
 101 };
 102
 103 static struct clk_branch video_cc_at_clk = {
 104         .halt_reg = 0x9f0,
 105         .halt_check = BRANCH_HALT,
 106         .clkr = {
 107                 .enable_reg = 0x9f0,
 108                 .enable_mask = BIT(0),
 109                 .hw.init = &(struct clk_init_data){
 110                         .name = "video_cc_at_clk",
 111                         .ops = &clk_branch2_ops,
 112                 },
 113         },
 114 };
 115
 116 static struct clk_branch video_cc_qdss_trig_clk = {
 117         .halt_reg = 0x970,
 118         .halt_check = BRANCH_HALT,
 119         .clkr = {
 120                 .enable_reg = 0x970,
 121                 .enable_mask = BIT(0),
 122                 .hw.init = &(struct clk_init_data){
 123                         .name = "video_cc_qdss_trig_clk",
 124                         .ops = &clk_branch2_ops,
 125                 },
 126         },
 127 };
 128
 129 static struct clk_branch video_cc_qdss_tsctr_div8_clk = {
 130         .halt_reg = 0x9d0,
 131         .halt_check = BRANCH_HALT,
 132         .clkr = {
 133                 .enable_reg = 0x9d0,
 134                 .enable_mask = BIT(0),
 135                 .hw.init = &(struct clk_init_data){
 136                         .name = "video_cc_qdss_tsctr_div8_clk",
 137                         .ops = &clk_branch2_ops,
 138                 },
 139         },
 140 };
 141
 142 static struct clk_branch video_cc_vcodec0_axi_clk = {
 143         .halt_reg = 0x930,
 144         .halt_check = BRANCH_HALT,
 145         .clkr = {
 146                 .enable_reg = 0x930,
 147                 .enable_mask = BIT(0),
 148                 .hw.init = &(struct clk_init_data){
 149                         .name = "video_cc_vcodec0_axi_clk",
 150                         .ops = &clk_branch2_ops,
 151                 },
 152         },
 153 };
 154
 155 static struct clk_branch video_cc_vcodec0_core_clk = {
 156         .halt_reg = 0x890,
 157         .halt_check = BRANCH_VOTED,
 158         .clkr = {
 159                 .enable_reg = 0x890,
 160                 .enable_mask = BIT(0),
 161                 .hw.init = &(struct clk_init_data){
 162                         .name = "video_cc_vcodec0_core_clk",
 163                         .parent_names = (const char *[]){
 164                                 "video_cc_venus_clk_src",
 165                         },
 166                         .num_parents = 1,
 167                         .flags = CLK_SET_RATE_PARENT,
 168                         .ops = &clk_branch2_ops,
 169                 },
 170         },
 171 };
 172
 173 static struct clk_branch video_cc_vcodec1_axi_clk = {
 174         .halt_reg = 0x950,
 175         .halt_check = BRANCH_HALT,
 176         .clkr = {
 177                 .enable_reg = 0x950,
 178                 .enable_mask = BIT(0),
 179                 .hw.init = &(struct clk_init_data){
 180                         .name = "video_cc_vcodec1_axi_clk",
 181                         .ops = &clk_branch2_ops,
 182                 },
 183         },
 184 };
 185
 186 static struct clk_branch video_cc_vcodec1_core_clk = {
 187         .halt_reg = 0x8d0,
 188         .halt_check = BRANCH_VOTED,
 189         .clkr = {
 190                 .enable_reg = 0x8d0,
 191                 .enable_mask = BIT(0),
 192                 .hw.init = &(struct clk_init_data){
 193                         .name = "video_cc_vcodec1_core_clk",
 194                         .parent_names = (const char *[]){
 195                                 "video_cc_venus_clk_src",
 196                         },
 197                         .num_parents = 1,
 198                         .flags = CLK_SET_RATE_PARENT,
 199                         .ops = &clk_branch2_ops,
 200                 },
 201         },
 202 };
 203
 204 static struct clk_branch video_cc_venus_ahb_clk = {
 205         .halt_reg = 0x9b0,
 206         .halt_check = BRANCH_HALT,
 207         .clkr = {
 208                 .enable_reg = 0x9b0,
 209                 .enable_mask = BIT(0),
 210                 .hw.init = &(struct clk_init_data){
 211                         .name = "video_cc_venus_ahb_clk",
 212                         .ops = &clk_branch2_ops,
 213                 },
 214         },
 215 };
 216
 217 static struct clk_branch video_cc_venus_ctl_axi_clk = {
 218         .halt_reg = 0x910,
 219         .halt_check = BRANCH_HALT,
 220         .clkr = {
 221                 .enable_reg = 0x910,
 222                 .enable_mask = BIT(0),
 223                 .hw.init = &(struct clk_init_data){
 224                         .name = "video_cc_venus_ctl_axi_clk",
 225                         .ops = &clk_branch2_ops,
 226                 },
 227         },
 228 };
 229
 230 static struct clk_branch video_cc_venus_ctl_core_clk = {
 231         .halt_reg = 0x850,
 232         .halt_check = BRANCH_HALT,
 233         .clkr = {
 234                 .enable_reg = 0x850,
 235                 .enable_mask = BIT(0),
 236                 .hw.init = &(struct clk_init_data){
 237                         .name = "video_cc_venus_ctl_core_clk",
 238                         .parent_names = (const char *[]){
 239                                 "video_cc_venus_clk_src",
 240                         },
 241                         .num_parents = 1,
 242                         .flags = CLK_SET_RATE_PARENT,
 243                         .ops = &clk_branch2_ops,
 244                 },
 245         },
 246 };
 247
 248 static struct gdsc venus_gdsc = {
 249         .gdscr = 0x814,
 250         .pd = {
 251                 .name = "venus_gdsc",
 252         },
 253         .cxcs = (unsigned int []){ 0x850, 0x910 },
 254         .cxc_count = 2,
 255         .pwrsts = PWRSTS_OFF_ON,
 256         .flags = POLL_CFG_GDSCR,
 257 };
 258
 259 static struct gdsc vcodec0_gdsc = {
 260         .gdscr = 0x874,
 261         .pd = {
 262                 .name = "vcodec0_gdsc",
 263         },
 264         .cxcs = (unsigned int []){ 0x890, 0x930 },
 265         .cxc_count = 2,
 266         .flags = HW_CTRL | POLL_CFG_GDSCR,
 267         .pwrsts = PWRSTS_OFF_ON,
 268 };
 269
 270 static struct gdsc vcodec1_gdsc = {
 271         .gdscr = 0x8b4,
 272         .pd = {
 273                 .name = "vcodec1_gdsc",
 274         },
 275         .cxcs = (unsigned int []){ 0x8d0, 0x950 },
 276         .cxc_count = 2,
 277         .flags = HW_CTRL | POLL_CFG_GDSCR,
 278         .pwrsts = PWRSTS_OFF_ON,
 279 };
 280
 281 static struct clk_regmap *video_cc_sdm845_clocks[] = {
 282         [VIDEO_CC_APB_CLK] = &video_cc_apb_clk.clkr,
 283         [VIDEO_CC_AT_CLK] = &video_cc_at_clk.clkr,
 284         [VIDEO_CC_QDSS_TRIG_CLK] = &video_cc_qdss_trig_clk.clkr,
 285         [VIDEO_CC_QDSS_TSCTR_DIV8_CLK] = &video_cc_qdss_tsctr_div8_clk.clkr,
 286         [VIDEO_CC_VCODEC0_AXI_CLK] = &video_cc_vcodec0_axi_clk.clkr,
 287         [VIDEO_CC_VCODEC0_CORE_CLK] = &video_cc_vcodec0_core_clk.clkr,
 288         [VIDEO_CC_VCODEC1_AXI_CLK] = &video_cc_vcodec1_axi_clk.clkr,
 289         [VIDEO_CC_VCODEC1_CORE_CLK] = &video_cc_vcodec1_core_clk.clkr,
 290         [VIDEO_CC_VENUS_AHB_CLK] = &video_cc_venus_ahb_clk.clkr,
 291         [VIDEO_CC_VENUS_CLK_SRC] = &video_cc_venus_clk_src.clkr,
 292         [VIDEO_CC_VENUS_CTL_AXI_CLK] = &video_cc_venus_ctl_axi_clk.clkr,
 293         [VIDEO_CC_VENUS_CTL_CORE_CLK] = &video_cc_venus_ctl_core_clk.clkr,
 294         [VIDEO_PLL0] = &video_pll0.clkr,
 295 };
 296
 297 static struct gdsc *video_cc_sdm845_gdscs[] = {
 298         [VENUS_GDSC] = &venus_gdsc,
 299         [VCODEC0_GDSC] = &vcodec0_gdsc,
 300         [VCODEC1_GDSC] = &vcodec1_gdsc,
 301 };
 302
 303 static const struct regmap_config video_cc_sdm845_regmap_config = {
 304         .reg_bits       = 32,
 305         .reg_stride     = 4,
 306         .val_bits       = 32,
 307         .max_register   = 0xb90,
 308         .fast_io        = true,
 309 };
 310
 311 static const struct qcom_cc_desc video_cc_sdm845_desc = {
 312         .config = &video_cc_sdm845_regmap_config,
 313         .clks = video_cc_sdm845_clocks,
 314         .num_clks = ARRAY_SIZE(video_cc_sdm845_clocks),
 315         .gdscs = video_cc_sdm845_gdscs,
 316         .num_gdscs = ARRAY_SIZE(video_cc_sdm845_gdscs),
 317 };
 318
 319 static const struct of_device_id video_cc_sdm845_match_table[] = {
 320         { .compatible = "qcom,sdm845-videocc" },
 321         { }
 322 };
 323 MODULE_DEVICE_TABLE(of, video_cc_sdm845_match_table);
 324
 325 static int video_cc_sdm845_probe(struct platform_device *pdev)
 326 {
 327         struct regmap *regmap;
 328
 329         regmap = qcom_cc_map(pdev, &video_cc_sdm845_desc);
 330         if (IS_ERR(regmap))
 331                 return PTR_ERR(regmap);
 332
 333         clk_fabia_pll_configure(&video_pll0, regmap, &video_pll0_config);
 334
 335         return qcom_cc_really_probe(pdev, &video_cc_sdm845_desc, regmap);
 336 }
 337
 338 static struct platform_driver video_cc_sdm845_driver = {
 339         .probe          = video_cc_sdm845_probe,
 340         .driver         = {
 341                 .name   = "sdm845-videocc",
 342                 .of_match_table = video_cc_sdm845_match_table,
 343         },
 344 };
 345
 346 static int __init video_cc_sdm845_init(void)
 347 {
 348         return platform_driver_register(&video_cc_sdm845_driver);
 349 }
 350 subsys_initcall(video_cc_sdm845_init);
 351
 352 static void __exit video_cc_sdm845_exit(void)
 353 {
 354         platform_driver_unregister(&video_cc_sdm845_driver);
 355 }
 356 module_exit(video_cc_sdm845_exit);
 357
 358 MODULE_LICENSE("GPL v2");