1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2018-2020, 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/pm_runtime.h> 10 #include <linux/regmap.h> 11 12 #include <dt-bindings/clock/qcom,videocc-sm8250.h> 13 14 #include "clk-alpha-pll.h" 15 #include "clk-branch.h" 16 #include "clk-rcg.h" 17 #include "clk-regmap.h" 18 #include "clk-regmap-divider.h" 19 #include "common.h" 20 #include "reset.h" 21 #include "gdsc.h" 22 23 enum { 24 P_BI_TCXO, 25 P_VIDEO_PLL0_OUT_MAIN, 26 P_VIDEO_PLL1_OUT_MAIN, 27 }; 28 29 static struct pll_vco lucid_vco[] = { 30 { 249600000, 2000000000, 0 }, 31 }; 32 33 static const struct alpha_pll_config video_pll0_config = { 34 .l = 0x25, 35 .alpha = 0x8000, 36 .config_ctl_val = 0x20485699, 37 .config_ctl_hi_val = 0x00002261, 38 .config_ctl_hi1_val = 0x329A699C, 39 .user_ctl_val = 0x00000000, 40 .user_ctl_hi_val = 0x00000805, 41 .user_ctl_hi1_val = 0x00000000, 42 }; 43 44 static struct clk_alpha_pll video_pll0 = { 45 .offset = 0x42c, 46 .vco_table = lucid_vco, 47 .num_vco = ARRAY_SIZE(lucid_vco), 48 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID], 49 .clkr = { 50 .hw.init = &(struct clk_init_data){ 51 .name = "video_pll0", 52 .parent_data = &(const struct clk_parent_data){ 53 .fw_name = "bi_tcxo", 54 }, 55 .num_parents = 1, 56 .ops = &clk_alpha_pll_lucid_ops, 57 }, 58 }, 59 }; 60 61 static const struct alpha_pll_config video_pll1_config = { 62 .l = 0x2B, 63 .alpha = 0xC000, 64 .config_ctl_val = 0x20485699, 65 .config_ctl_hi_val = 0x00002261, 66 .config_ctl_hi1_val = 0x329A699C, 67 .user_ctl_val = 0x00000000, 68 .user_ctl_hi_val = 0x00000805, 69 .user_ctl_hi1_val = 0x00000000, 70 }; 71 72 static struct clk_alpha_pll video_pll1 = { 73 .offset = 0x7d0, 74 .vco_table = lucid_vco, 75 .num_vco = ARRAY_SIZE(lucid_vco), 76 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID], 77 .clkr = { 78 .hw.init = &(struct clk_init_data){ 79 .name = "video_pll1", 80 .parent_data = &(const struct clk_parent_data){ 81 .fw_name = "bi_tcxo", 82 }, 83 .num_parents = 1, 84 .ops = &clk_alpha_pll_lucid_ops, 85 }, 86 }, 87 }; 88 89 static const struct parent_map video_cc_parent_map_1[] = { 90 { P_BI_TCXO, 0 }, 91 { P_VIDEO_PLL0_OUT_MAIN, 1 }, 92 }; 93 94 static const struct clk_parent_data video_cc_parent_data_1[] = { 95 { .fw_name = "bi_tcxo" }, 96 { .hw = &video_pll0.clkr.hw }, 97 }; 98 99 static const struct parent_map video_cc_parent_map_2[] = { 100 { P_BI_TCXO, 0 }, 101 { P_VIDEO_PLL1_OUT_MAIN, 1 }, 102 }; 103 104 static const struct clk_parent_data video_cc_parent_data_2[] = { 105 { .fw_name = "bi_tcxo" }, 106 { .hw = &video_pll1.clkr.hw }, 107 }; 108 109 static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = { 110 F(19200000, P_BI_TCXO, 1, 0, 0), 111 F(720000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0), 112 F(1014000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0), 113 F(1098000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0), 114 F(1332000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0), 115 { } 116 }; 117 118 static struct clk_rcg2 video_cc_mvs0_clk_src = { 119 .cmd_rcgr = 0xb94, 120 .mnd_width = 0, 121 .hid_width = 5, 122 .parent_map = video_cc_parent_map_1, 123 .freq_tbl = ftbl_video_cc_mvs0_clk_src, 124 .clkr.hw.init = &(struct clk_init_data){ 125 .name = "video_cc_mvs0_clk_src", 126 .parent_data = video_cc_parent_data_1, 127 .num_parents = ARRAY_SIZE(video_cc_parent_data_1), 128 .flags = CLK_SET_RATE_PARENT, 129 .ops = &clk_rcg2_shared_ops, 130 }, 131 }; 132 133 static const struct freq_tbl ftbl_video_cc_mvs1_clk_src[] = { 134 F(19200000, P_BI_TCXO, 1, 0, 0), 135 F(840000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0), 136 F(1098000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0), 137 F(1332000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0), 138 { } 139 }; 140 141 static struct clk_rcg2 video_cc_mvs1_clk_src = { 142 .cmd_rcgr = 0xbb4, 143 .mnd_width = 0, 144 .hid_width = 5, 145 .parent_map = video_cc_parent_map_2, 146 .freq_tbl = ftbl_video_cc_mvs1_clk_src, 147 .clkr.hw.init = &(struct clk_init_data){ 148 .name = "video_cc_mvs1_clk_src", 149 .parent_data = video_cc_parent_data_2, 150 .num_parents = ARRAY_SIZE(video_cc_parent_data_2), 151 .flags = CLK_SET_RATE_PARENT, 152 .ops = &clk_rcg2_shared_ops, 153 }, 154 }; 155 156 static struct clk_regmap_div video_cc_mvs0c_div2_div_clk_src = { 157 .reg = 0xc54, 158 .shift = 0, 159 .width = 2, 160 .clkr.hw.init = &(struct clk_init_data) { 161 .name = "video_cc_mvs0c_div2_div_clk_src", 162 .parent_hws = (const struct clk_hw*[]){ 163 &video_cc_mvs0_clk_src.clkr.hw, 164 }, 165 .num_parents = 1, 166 .flags = CLK_SET_RATE_PARENT, 167 .ops = &clk_regmap_div_ro_ops, 168 }, 169 }; 170 171 static struct clk_regmap_div video_cc_mvs0_div_clk_src = { 172 .reg = 0xd54, 173 .shift = 0, 174 .width = 2, 175 .clkr.hw.init = &(struct clk_init_data) { 176 .name = "video_cc_mvs0_div_clk_src", 177 .parent_hws = (const struct clk_hw*[]){ 178 &video_cc_mvs0_clk_src.clkr.hw, 179 }, 180 .num_parents = 1, 181 .flags = CLK_SET_RATE_PARENT, 182 .ops = &clk_regmap_div_ro_ops, 183 }, 184 }; 185 186 static struct clk_regmap_div video_cc_mvs1c_div2_div_clk_src = { 187 .reg = 0xcf4, 188 .shift = 0, 189 .width = 2, 190 .clkr.hw.init = &(struct clk_init_data) { 191 .name = "video_cc_mvs1c_div2_div_clk_src", 192 .parent_hws = (const struct clk_hw*[]){ 193 &video_cc_mvs1_clk_src.clkr.hw, 194 }, 195 .num_parents = 1, 196 .flags = CLK_SET_RATE_PARENT, 197 .ops = &clk_regmap_div_ro_ops, 198 }, 199 }; 200 201 static struct clk_branch video_cc_mvs0c_clk = { 202 .halt_reg = 0xc34, 203 .halt_check = BRANCH_HALT, 204 .clkr = { 205 .enable_reg = 0xc34, 206 .enable_mask = BIT(0), 207 .hw.init = &(struct clk_init_data){ 208 .name = "video_cc_mvs0c_clk", 209 .parent_hws = (const struct clk_hw*[]){ 210 &video_cc_mvs0c_div2_div_clk_src.clkr.hw, 211 }, 212 .num_parents = 1, 213 .flags = CLK_SET_RATE_PARENT, 214 .ops = &clk_branch2_ops, 215 }, 216 }, 217 }; 218 219 static struct clk_branch video_cc_mvs0_clk = { 220 .halt_reg = 0xd34, 221 .halt_check = BRANCH_HALT_VOTED, 222 .clkr = { 223 .enable_reg = 0xd34, 224 .enable_mask = BIT(0), 225 .hw.init = &(struct clk_init_data){ 226 .name = "video_cc_mvs0_clk", 227 .parent_hws = (const struct clk_hw*[]){ 228 &video_cc_mvs0_div_clk_src.clkr.hw, 229 }, 230 .num_parents = 1, 231 .flags = CLK_SET_RATE_PARENT, 232 .ops = &clk_branch2_ops, 233 }, 234 }, 235 }; 236 237 static struct clk_branch video_cc_mvs1_div2_clk = { 238 .halt_reg = 0xdf4, 239 .halt_check = BRANCH_HALT_VOTED, 240 .clkr = { 241 .enable_reg = 0xdf4, 242 .enable_mask = BIT(0), 243 .hw.init = &(struct clk_init_data){ 244 .name = "video_cc_mvs1_div2_clk", 245 .parent_hws = (const struct clk_hw*[]){ 246 &video_cc_mvs1c_div2_div_clk_src.clkr.hw, 247 }, 248 .num_parents = 1, 249 .flags = CLK_SET_RATE_PARENT, 250 .ops = &clk_branch2_ops, 251 }, 252 }, 253 }; 254 255 static struct clk_branch video_cc_mvs1c_clk = { 256 .halt_reg = 0xcd4, 257 .halt_check = BRANCH_HALT_VOTED, 258 .clkr = { 259 .enable_reg = 0xcd4, 260 .enable_mask = BIT(0), 261 .hw.init = &(struct clk_init_data){ 262 .name = "video_cc_mvs1c_clk", 263 .parent_hws = (const struct clk_hw*[]){ 264 &video_cc_mvs1c_div2_div_clk_src.clkr.hw, 265 }, 266 .num_parents = 1, 267 .flags = CLK_SET_RATE_PARENT, 268 .ops = &clk_branch2_ops, 269 }, 270 }, 271 }; 272 273 static struct gdsc mvs0c_gdsc = { 274 .gdscr = 0xbf8, 275 .pd = { 276 .name = "mvs0c_gdsc", 277 }, 278 .flags = 0, 279 .pwrsts = PWRSTS_OFF_ON, 280 }; 281 282 static struct gdsc mvs1c_gdsc = { 283 .gdscr = 0xc98, 284 .pd = { 285 .name = "mvs1c_gdsc", 286 }, 287 .flags = 0, 288 .pwrsts = PWRSTS_OFF_ON, 289 }; 290 291 static struct gdsc mvs0_gdsc = { 292 .gdscr = 0xd18, 293 .pd = { 294 .name = "mvs0_gdsc", 295 }, 296 .flags = HW_CTRL, 297 .pwrsts = PWRSTS_OFF_ON, 298 }; 299 300 static struct gdsc mvs1_gdsc = { 301 .gdscr = 0xd98, 302 .pd = { 303 .name = "mvs1_gdsc", 304 }, 305 .flags = HW_CTRL, 306 .pwrsts = PWRSTS_OFF_ON, 307 }; 308 309 static struct clk_regmap *video_cc_sm8250_clocks[] = { 310 [VIDEO_CC_MVS0_CLK] = &video_cc_mvs0_clk.clkr, 311 [VIDEO_CC_MVS0_CLK_SRC] = &video_cc_mvs0_clk_src.clkr, 312 [VIDEO_CC_MVS0_DIV_CLK_SRC] = &video_cc_mvs0_div_clk_src.clkr, 313 [VIDEO_CC_MVS0C_CLK] = &video_cc_mvs0c_clk.clkr, 314 [VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC] = &video_cc_mvs0c_div2_div_clk_src.clkr, 315 [VIDEO_CC_MVS1_CLK_SRC] = &video_cc_mvs1_clk_src.clkr, 316 [VIDEO_CC_MVS1_DIV2_CLK] = &video_cc_mvs1_div2_clk.clkr, 317 [VIDEO_CC_MVS1C_CLK] = &video_cc_mvs1c_clk.clkr, 318 [VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC] = &video_cc_mvs1c_div2_div_clk_src.clkr, 319 [VIDEO_CC_PLL0] = &video_pll0.clkr, 320 [VIDEO_CC_PLL1] = &video_pll1.clkr, 321 }; 322 323 static const struct qcom_reset_map video_cc_sm8250_resets[] = { 324 [VIDEO_CC_CVP_INTERFACE_BCR] = { 0xe54 }, 325 [VIDEO_CC_CVP_MVS0_BCR] = { 0xd14 }, 326 [VIDEO_CC_MVS0C_CLK_ARES] = { 0xc34, 2 }, 327 [VIDEO_CC_CVP_MVS0C_BCR] = { 0xbf4 }, 328 [VIDEO_CC_CVP_MVS1_BCR] = { 0xd94 }, 329 [VIDEO_CC_MVS1C_CLK_ARES] = { 0xcd4, 2 }, 330 [VIDEO_CC_CVP_MVS1C_BCR] = { 0xc94 }, 331 }; 332 333 static struct gdsc *video_cc_sm8250_gdscs[] = { 334 [MVS0C_GDSC] = &mvs0c_gdsc, 335 [MVS1C_GDSC] = &mvs1c_gdsc, 336 [MVS0_GDSC] = &mvs0_gdsc, 337 [MVS1_GDSC] = &mvs1_gdsc, 338 }; 339 340 static const struct regmap_config video_cc_sm8250_regmap_config = { 341 .reg_bits = 32, 342 .reg_stride = 4, 343 .val_bits = 32, 344 .max_register = 0xf4c, 345 .fast_io = true, 346 }; 347 348 static const struct qcom_cc_desc video_cc_sm8250_desc = { 349 .config = &video_cc_sm8250_regmap_config, 350 .clks = video_cc_sm8250_clocks, 351 .num_clks = ARRAY_SIZE(video_cc_sm8250_clocks), 352 .resets = video_cc_sm8250_resets, 353 .num_resets = ARRAY_SIZE(video_cc_sm8250_resets), 354 .gdscs = video_cc_sm8250_gdscs, 355 .num_gdscs = ARRAY_SIZE(video_cc_sm8250_gdscs), 356 }; 357 358 static const struct of_device_id video_cc_sm8250_match_table[] = { 359 { .compatible = "qcom,sm8250-videocc" }, 360 { } 361 }; 362 MODULE_DEVICE_TABLE(of, video_cc_sm8250_match_table); 363 364 static void video_cc_sm8250_pm_runtime_disable(void *data) 365 { 366 pm_runtime_disable(data); 367 } 368 369 static int video_cc_sm8250_probe(struct platform_device *pdev) 370 { 371 struct regmap *regmap; 372 int ret; 373 374 pm_runtime_enable(&pdev->dev); 375 376 ret = devm_add_action_or_reset(&pdev->dev, video_cc_sm8250_pm_runtime_disable, &pdev->dev); 377 if (ret) 378 return ret; 379 380 ret = pm_runtime_resume_and_get(&pdev->dev); 381 if (ret) 382 return ret; 383 384 regmap = qcom_cc_map(pdev, &video_cc_sm8250_desc); 385 if (IS_ERR(regmap)) { 386 pm_runtime_put(&pdev->dev); 387 return PTR_ERR(regmap); 388 } 389 390 clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config); 391 clk_lucid_pll_configure(&video_pll1, regmap, &video_pll1_config); 392 393 /* Keep VIDEO_CC_AHB_CLK and VIDEO_CC_XO_CLK ALWAYS-ON */ 394 regmap_update_bits(regmap, 0xe58, BIT(0), BIT(0)); 395 regmap_update_bits(regmap, 0xeec, BIT(0), BIT(0)); 396 397 ret = qcom_cc_really_probe(pdev, &video_cc_sm8250_desc, regmap); 398 399 pm_runtime_put(&pdev->dev); 400 401 return ret; 402 } 403 404 static struct platform_driver video_cc_sm8250_driver = { 405 .probe = video_cc_sm8250_probe, 406 .driver = { 407 .name = "sm8250-videocc", 408 .of_match_table = video_cc_sm8250_match_table, 409 }, 410 }; 411 412 static int __init video_cc_sm8250_init(void) 413 { 414 return platform_driver_register(&video_cc_sm8250_driver); 415 } 416 subsys_initcall(video_cc_sm8250_init); 417 418 static void __exit video_cc_sm8250_exit(void) 419 { 420 platform_driver_unregister(&video_cc_sm8250_driver); 421 } 422 module_exit(video_cc_sm8250_exit); 423 424 MODULE_LICENSE("GPL v2"); 425 MODULE_DESCRIPTION("QTI VIDEOCC SM8250 Driver"); 426