1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright (C) 2012 Avionic Design GmbH 4 * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. 5 */ 6 7#include <linux/clk.h> 8#include <linux/debugfs.h> 9#include <linux/delay.h> 10#include <linux/hdmi.h> 11#include <linux/math64.h> 12#include <linux/module.h> 13#include <linux/of.h> 14#include <linux/platform_device.h> 15#include <linux/pm_opp.h> 16#include <linux/pm_runtime.h> 17#include <linux/regulator/consumer.h> 18#include <linux/reset.h> 19 20#include <soc/tegra/common.h> 21#include <sound/hdmi-codec.h> 22 23#include <drm/drm_bridge_connector.h> 24#include <drm/drm_atomic_helper.h> 25#include <drm/drm_crtc.h> 26#include <drm/drm_debugfs.h> 27#include <drm/drm_file.h> 28#include <drm/drm_fourcc.h> 29#include <drm/drm_probe_helper.h> 30#include <drm/drm_simple_kms_helper.h> 31 32#include "hda.h" 33#include "hdmi.h" 34#include "drm.h" 35#include "dc.h" 36#include "trace.h" 37 38#define HDMI_ELD_BUFFER_SIZE 96 39 40struct tmds_config { 41 unsigned int pclk; 42 u32 pll0; 43 u32 pll1; 44 u32 pe_current; 45 u32 drive_current; 46 u32 peak_current; 47}; 48 49struct tegra_hdmi_config { 50 const struct tmds_config *tmds; 51 unsigned int num_tmds; 52 53 unsigned long fuse_override_offset; 54 u32 fuse_override_value; 55 56 bool has_sor_io_peak_current; 57 bool has_hda; 58 bool has_hbr; 59}; 60 61struct tegra_hdmi { 62 struct host1x_client client; 63 struct tegra_output output; 64 struct device *dev; 65 66 struct regulator *hdmi; 67 struct regulator *pll; 68 struct regulator *vdd; 69 70 void __iomem *regs; 71 unsigned int irq; 72 73 struct clk *clk_parent; 74 struct clk *clk; 75 struct reset_control *rst; 76 77 const struct tegra_hdmi_config *config; 78 79 unsigned int audio_source; 80 struct tegra_hda_format format; 81 82 unsigned int pixel_clock; 83 bool stereo; 84 bool dvi; 85 86 struct drm_info_list *debugfs_files; 87 88 struct platform_device *audio_pdev; 89 struct mutex audio_lock; 90}; 91 92static inline struct tegra_hdmi * 93host1x_client_to_hdmi(struct host1x_client *client) 94{ 95 return container_of(client, struct tegra_hdmi, client); 96} 97 98static inline struct tegra_hdmi *to_hdmi(struct tegra_output *output) 99{ 100 return container_of(output, struct tegra_hdmi, output); 101} 102 103#define HDMI_AUDIOCLK_FREQ 216000000 104#define HDMI_REKEY_DEFAULT 56 105 106enum { 107 AUTO = 0, 108 SPDIF, 109 HDA, 110}; 111 112static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi, 113 unsigned int offset) 114{ 115 u32 value = readl(hdmi->regs + (offset << 2)); 116 117 trace_hdmi_readl(hdmi->dev, offset, value); 118 119 return value; 120} 121 122static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value, 123 unsigned int offset) 124{ 125 trace_hdmi_writel(hdmi->dev, offset, value); 126 writel(value, hdmi->regs + (offset << 2)); 127} 128 129struct tegra_hdmi_audio_config { 130 unsigned int n; 131 unsigned int cts; 132 unsigned int aval; 133}; 134 135static const struct tmds_config tegra20_tmds_config[] = { 136 { /* slow pixel clock modes */ 137 .pclk = 27000000, 138 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) | 139 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) | 140 SOR_PLL_TX_REG_LOAD(3), 141 .pll1 = SOR_PLL_TMDS_TERM_ENABLE, 142 .pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) | 143 PE_CURRENT1(PE_CURRENT_0_0_mA) | 144 PE_CURRENT2(PE_CURRENT_0_0_mA) | 145 PE_CURRENT3(PE_CURRENT_0_0_mA), 146 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) | 147 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) | 148 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) | 149 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA), 150 }, 151 { /* high pixel clock modes */ 152 .pclk = UINT_MAX, 153 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) | 154 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) | 155 SOR_PLL_TX_REG_LOAD(3), 156 .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN, 157 .pe_current = PE_CURRENT0(PE_CURRENT_6_0_mA) | 158 PE_CURRENT1(PE_CURRENT_6_0_mA) | 159 PE_CURRENT2(PE_CURRENT_6_0_mA) | 160 PE_CURRENT3(PE_CURRENT_6_0_mA), 161 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) | 162 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) | 163 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) | 164 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA), 165 }, 166}; 167 168static const struct tmds_config tegra30_tmds_config[] = { 169 { /* 480p modes */ 170 .pclk = 27000000, 171 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) | 172 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) | 173 SOR_PLL_TX_REG_LOAD(0), 174 .pll1 = SOR_PLL_TMDS_TERM_ENABLE, 175 .pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) | 176 PE_CURRENT1(PE_CURRENT_0_0_mA) | 177 PE_CURRENT2(PE_CURRENT_0_0_mA) | 178 PE_CURRENT3(PE_CURRENT_0_0_mA), 179 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) | 180 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) | 181 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) | 182 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA), 183 }, { /* 720p modes */ 184 .pclk = 74250000, 185 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) | 186 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) | 187 SOR_PLL_TX_REG_LOAD(0), 188 .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN, 189 .pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) | 190 PE_CURRENT1(PE_CURRENT_5_0_mA) | 191 PE_CURRENT2(PE_CURRENT_5_0_mA) | 192 PE_CURRENT3(PE_CURRENT_5_0_mA), 193 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) | 194 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) | 195 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) | 196 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA), 197 }, { /* 1080p modes */ 198 .pclk = UINT_MAX, 199 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) | 200 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(3) | 201 SOR_PLL_TX_REG_LOAD(0), 202 .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN, 203 .pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) | 204 PE_CURRENT1(PE_CURRENT_5_0_mA) | 205 PE_CURRENT2(PE_CURRENT_5_0_mA) | 206 PE_CURRENT3(PE_CURRENT_5_0_mA), 207 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) | 208 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) | 209 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) | 210 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA), 211 }, 212}; 213 214static const struct tmds_config tegra114_tmds_config[] = { 215 { /* 480p/576p / 25.2MHz/27MHz modes */ 216 .pclk = 27000000, 217 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 218 SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL, 219 .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0), 220 .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) | 221 PE_CURRENT1(PE_CURRENT_0_mA_T114) | 222 PE_CURRENT2(PE_CURRENT_0_mA_T114) | 223 PE_CURRENT3(PE_CURRENT_0_mA_T114), 224 .drive_current = 225 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) | 226 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) | 227 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) | 228 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114), 229 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | 230 PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | 231 PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | 232 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), 233 }, { /* 720p / 74.25MHz modes */ 234 .pclk = 74250000, 235 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 236 SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL, 237 .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) | 238 SOR_PLL_TMDS_TERMADJ(0), 239 .pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) | 240 PE_CURRENT1(PE_CURRENT_15_mA_T114) | 241 PE_CURRENT2(PE_CURRENT_15_mA_T114) | 242 PE_CURRENT3(PE_CURRENT_15_mA_T114), 243 .drive_current = 244 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) | 245 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) | 246 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) | 247 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114), 248 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | 249 PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | 250 PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | 251 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), 252 }, { /* 1080p / 148.5MHz modes */ 253 .pclk = 148500000, 254 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 255 SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL, 256 .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) | 257 SOR_PLL_TMDS_TERMADJ(0), 258 .pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) | 259 PE_CURRENT1(PE_CURRENT_10_mA_T114) | 260 PE_CURRENT2(PE_CURRENT_10_mA_T114) | 261 PE_CURRENT3(PE_CURRENT_10_mA_T114), 262 .drive_current = 263 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) | 264 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) | 265 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) | 266 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114), 267 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | 268 PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | 269 PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | 270 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), 271 }, { /* 225/297MHz modes */ 272 .pclk = UINT_MAX, 273 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 274 SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL, 275 .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7) 276 | SOR_PLL_TMDS_TERM_ENABLE, 277 .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) | 278 PE_CURRENT1(PE_CURRENT_0_mA_T114) | 279 PE_CURRENT2(PE_CURRENT_0_mA_T114) | 280 PE_CURRENT3(PE_CURRENT_0_mA_T114), 281 .drive_current = 282 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) | 283 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) | 284 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) | 285 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114), 286 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) | 287 PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) | 288 PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) | 289 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA), 290 }, 291}; 292 293static const struct tmds_config tegra124_tmds_config[] = { 294 { /* 480p/576p / 25.2MHz/27MHz modes */ 295 .pclk = 27000000, 296 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 297 SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL, 298 .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0), 299 .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) | 300 PE_CURRENT1(PE_CURRENT_0_mA_T114) | 301 PE_CURRENT2(PE_CURRENT_0_mA_T114) | 302 PE_CURRENT3(PE_CURRENT_0_mA_T114), 303 .drive_current = 304 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) | 305 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) | 306 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) | 307 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114), 308 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | 309 PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | 310 PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | 311 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), 312 }, { /* 720p / 74.25MHz modes */ 313 .pclk = 74250000, 314 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 315 SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL, 316 .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) | 317 SOR_PLL_TMDS_TERMADJ(0), 318 .pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) | 319 PE_CURRENT1(PE_CURRENT_15_mA_T114) | 320 PE_CURRENT2(PE_CURRENT_15_mA_T114) | 321 PE_CURRENT3(PE_CURRENT_15_mA_T114), 322 .drive_current = 323 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) | 324 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) | 325 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) | 326 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114), 327 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | 328 PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | 329 PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | 330 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), 331 }, { /* 1080p / 148.5MHz modes */ 332 .pclk = 148500000, 333 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 334 SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL, 335 .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) | 336 SOR_PLL_TMDS_TERMADJ(0), 337 .pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) | 338 PE_CURRENT1(PE_CURRENT_10_mA_T114) | 339 PE_CURRENT2(PE_CURRENT_10_mA_T114) | 340 PE_CURRENT3(PE_CURRENT_10_mA_T114), 341 .drive_current = 342 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) | 343 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) | 344 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) | 345 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114), 346 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | 347 PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | 348 PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | 349 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), 350 }, { /* 225/297MHz modes */ 351 .pclk = UINT_MAX, 352 .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | 353 SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL, 354 .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7) 355 | SOR_PLL_TMDS_TERM_ENABLE, 356 .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) | 357 PE_CURRENT1(PE_CURRENT_0_mA_T114) | 358 PE_CURRENT2(PE_CURRENT_0_mA_T114) | 359 PE_CURRENT3(PE_CURRENT_0_mA_T114), 360 .drive_current = 361 DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) | 362 DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) | 363 DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) | 364 DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114), 365 .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) | 366 PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) | 367 PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) | 368 PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA), 369 }, 370}; 371 372static void tegra_hdmi_audio_lock(struct tegra_hdmi *hdmi) 373{ 374 mutex_lock(&hdmi->audio_lock); 375 disable_irq(hdmi->irq); 376} 377 378static void tegra_hdmi_audio_unlock(struct tegra_hdmi *hdmi) 379{ 380 enable_irq(hdmi->irq); 381 mutex_unlock(&hdmi->audio_lock); 382} 383 384static int 385tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pix_clock, 386 struct tegra_hdmi_audio_config *config) 387{ 388 const unsigned int afreq = 128 * audio_freq; 389 const unsigned int min_n = afreq / 1500; 390 const unsigned int max_n = afreq / 300; 391 const unsigned int ideal_n = afreq / 1000; 392 int64_t min_err = (uint64_t)-1 >> 1; 393 unsigned int min_delta = -1; 394 int n; 395 396 memset(config, 0, sizeof(*config)); 397 config->n = -1; 398 399 for (n = min_n; n <= max_n; n++) { 400 uint64_t cts_f, aval_f; 401 unsigned int delta; 402 int64_t cts, err; 403 404 /* compute aval in 48.16 fixed point */ 405 aval_f = ((int64_t)24000000 << 16) * n; 406 do_div(aval_f, afreq); 407 /* It should round without any rest */ 408 if (aval_f & 0xFFFF) 409 continue; 410 411 /* Compute cts in 48.16 fixed point */ 412 cts_f = ((int64_t)pix_clock << 16) * n; 413 do_div(cts_f, afreq); 414 /* Round it to the nearest integer */ 415 cts = (cts_f & ~0xFFFF) + ((cts_f & BIT(15)) << 1); 416 417 delta = abs(n - ideal_n); 418 419 /* Compute the absolute error */ 420 err = abs((int64_t)cts_f - cts); 421 if (err < min_err || (err == min_err && delta < min_delta)) { 422 config->n = n; 423 config->cts = cts >> 16; 424 config->aval = aval_f >> 16; 425 min_delta = delta; 426 min_err = err; 427 } 428 } 429 430 return config->n != -1 ? 0 : -EINVAL; 431} 432 433static void tegra_hdmi_setup_audio_fs_tables(struct tegra_hdmi *hdmi) 434{ 435 const unsigned int freqs[] = { 436 32000, 44100, 48000, 88200, 96000, 176400, 192000 437 }; 438 unsigned int i; 439 440 for (i = 0; i < ARRAY_SIZE(freqs); i++) { 441 unsigned int f = freqs[i]; 442 unsigned int eight_half; 443 unsigned int delta; 444 u32 value; 445 446 if (f > 96000) 447 delta = 2; 448 else if (f > 48000) 449 delta = 6; 450 else 451 delta = 9; 452 453 eight_half = (8 * HDMI_AUDIOCLK_FREQ) / (f * 128); 454 value = AUDIO_FS_LOW(eight_half - delta) | 455 AUDIO_FS_HIGH(eight_half + delta); 456 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_FS(i)); 457 } 458} 459 460static void tegra_hdmi_write_aval(struct tegra_hdmi *hdmi, u32 value) 461{ 462 static const struct { 463 unsigned int sample_rate; 464 unsigned int offset; 465 } regs[] = { 466 { 32000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0320 }, 467 { 44100, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0441 }, 468 { 48000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0480 }, 469 { 88200, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0882 }, 470 { 96000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0960 }, 471 { 176400, HDMI_NV_PDISP_SOR_AUDIO_AVAL_1764 }, 472 { 192000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_1920 }, 473 }; 474 unsigned int i; 475 476 for (i = 0; i < ARRAY_SIZE(regs); i++) { 477 if (regs[i].sample_rate == hdmi->format.sample_rate) { 478 tegra_hdmi_writel(hdmi, value, regs[i].offset); 479 break; 480 } 481 } 482} 483 484static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi) 485{ 486 struct tegra_hdmi_audio_config config; 487 u32 source, value; 488 int err; 489 490 switch (hdmi->audio_source) { 491 case HDA: 492 if (hdmi->config->has_hda) 493 source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_HDAL; 494 else 495 return -EINVAL; 496 497 break; 498 499 case SPDIF: 500 if (hdmi->config->has_hda) 501 source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_SPDIF; 502 else 503 source = AUDIO_CNTRL0_SOURCE_SELECT_SPDIF; 504 break; 505 506 default: 507 if (hdmi->config->has_hda) 508 source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_AUTO; 509 else 510 source = AUDIO_CNTRL0_SOURCE_SELECT_AUTO; 511 break; 512 } 513 514 /* 515 * Tegra30 and later use a slightly modified version of the register 516 * layout to accomodate for changes related to supporting HDA as the 517 * audio input source for HDMI. The source select field has moved to 518 * the SOR_AUDIO_CNTRL0 register, but the error tolerance and frames 519 * per block fields remain in the AUDIO_CNTRL0 register. 520 */ 521 if (hdmi->config->has_hda) { 522 /* 523 * Inject null samples into the audio FIFO for every frame in 524 * which the codec did not receive any samples. This applies 525 * to stereo LPCM only. 526 * 527 * XXX: This seems to be a remnant of MCP days when this was 528 * used to work around issues with monitors not being able to 529 * play back system startup sounds early. It is possibly not 530 * needed on Linux at all. 531 */ 532 if (hdmi->format.channels == 2) 533 value = SOR_AUDIO_CNTRL0_INJECT_NULLSMPL; 534 else 535 value = 0; 536 537 value |= source; 538 539 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0); 540 } 541 542 /* 543 * On Tegra20, HDA is not a supported audio source and the source 544 * select field is part of the AUDIO_CNTRL0 register. 545 */ 546 value = AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0) | 547 AUDIO_CNTRL0_ERROR_TOLERANCE(6); 548 549 if (!hdmi->config->has_hda) 550 value |= source; 551 552 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0); 553 554 /* 555 * Advertise support for High Bit-Rate on Tegra114 and later. 556 */ 557 if (hdmi->config->has_hbr) { 558 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_SPARE0); 559 value |= SOR_AUDIO_SPARE0_HBR_ENABLE; 560 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_SPARE0); 561 } 562 563 err = tegra_hdmi_get_audio_config(hdmi->format.sample_rate, 564 hdmi->pixel_clock, &config); 565 if (err < 0) { 566 dev_err(hdmi->dev, 567 "cannot set audio to %u Hz at %u Hz pixel clock\n", 568 hdmi->format.sample_rate, hdmi->pixel_clock); 569 return err; 570 } 571 572 dev_dbg(hdmi->dev, "audio: pixclk=%u, n=%u, cts=%u, aval=%u\n", 573 hdmi->pixel_clock, config.n, config.cts, config.aval); 574 575 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_HDMI_ACR_CTRL); 576 577 value = AUDIO_N_RESETF | AUDIO_N_GENERATE_ALTERNATE | 578 AUDIO_N_VALUE(config.n - 1); 579 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N); 580 581 tegra_hdmi_writel(hdmi, ACR_SUBPACK_N(config.n) | ACR_ENABLE, 582 HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH); 583 584 tegra_hdmi_writel(hdmi, ACR_SUBPACK_CTS(config.cts), 585 HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW); 586 587 value = SPARE_HW_CTS | SPARE_FORCE_SW_CTS | SPARE_CTS_RESET_VAL(1); 588 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_SPARE); 589 590 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_AUDIO_N); 591 value &= ~AUDIO_N_RESETF; 592 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N); 593 594 if (hdmi->config->has_hda) 595 tegra_hdmi_write_aval(hdmi, config.aval); 596 597 tegra_hdmi_setup_audio_fs_tables(hdmi); 598 599 return 0; 600} 601 602static void tegra_hdmi_disable_audio(struct tegra_hdmi *hdmi) 603{ 604 u32 value; 605 606 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 607 value &= ~GENERIC_CTRL_AUDIO; 608 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 609} 610 611static void tegra_hdmi_enable_audio(struct tegra_hdmi *hdmi) 612{ 613 u32 value; 614 615 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 616 value |= GENERIC_CTRL_AUDIO; 617 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 618} 619 620static void tegra_hdmi_write_eld(struct tegra_hdmi *hdmi) 621{ 622 size_t length = drm_eld_size(hdmi->output.connector.eld), i; 623 u32 value; 624 625 for (i = 0; i < length; i++) 626 tegra_hdmi_writel(hdmi, i << 8 | hdmi->output.connector.eld[i], 627 HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR); 628 629 /* 630 * The HDA codec will always report an ELD buffer size of 96 bytes and 631 * the HDA codec driver will check that each byte read from the buffer 632 * is valid. Therefore every byte must be written, even if no 96 bytes 633 * were parsed from EDID. 634 */ 635 for (i = length; i < HDMI_ELD_BUFFER_SIZE; i++) 636 tegra_hdmi_writel(hdmi, i << 8 | 0, 637 HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR); 638 639 value = SOR_AUDIO_HDA_PRESENSE_VALID | SOR_AUDIO_HDA_PRESENSE_PRESENT; 640 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE); 641} 642 643static inline u32 tegra_hdmi_subpack(const u8 *ptr, size_t size) 644{ 645 u32 value = 0; 646 size_t i; 647 648 for (i = size; i > 0; i--) 649 value = (value << 8) | ptr[i - 1]; 650 651 return value; 652} 653 654static void tegra_hdmi_write_infopack(struct tegra_hdmi *hdmi, const void *data, 655 size_t size) 656{ 657 const u8 *ptr = data; 658 unsigned long offset; 659 size_t i, j; 660 u32 value; 661 662 switch (ptr[0]) { 663 case HDMI_INFOFRAME_TYPE_AVI: 664 offset = HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER; 665 break; 666 667 case HDMI_INFOFRAME_TYPE_AUDIO: 668 offset = HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER; 669 break; 670 671 case HDMI_INFOFRAME_TYPE_VENDOR: 672 offset = HDMI_NV_PDISP_HDMI_GENERIC_HEADER; 673 break; 674 675 default: 676 dev_err(hdmi->dev, "unsupported infoframe type: %02x\n", 677 ptr[0]); 678 return; 679 } 680 681 value = INFOFRAME_HEADER_TYPE(ptr[0]) | 682 INFOFRAME_HEADER_VERSION(ptr[1]) | 683 INFOFRAME_HEADER_LEN(ptr[2]); 684 tegra_hdmi_writel(hdmi, value, offset); 685 offset++; 686 687 /* 688 * Each subpack contains 7 bytes, divided into: 689 * - subpack_low: bytes 0 - 3 690 * - subpack_high: bytes 4 - 6 (with byte 7 padded to 0x00) 691 */ 692 for (i = 3, j = 0; i < size; i += 7, j += 8) { 693 size_t rem = size - i, num = min_t(size_t, rem, 4); 694 695 value = tegra_hdmi_subpack(&ptr[i], num); 696 tegra_hdmi_writel(hdmi, value, offset++); 697 698 num = min_t(size_t, rem - num, 3); 699 700 value = tegra_hdmi_subpack(&ptr[i + 4], num); 701 tegra_hdmi_writel(hdmi, value, offset++); 702 } 703} 704 705static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi, 706 struct drm_display_mode *mode) 707{ 708 struct hdmi_avi_infoframe frame; 709 u8 buffer[17]; 710 ssize_t err; 711 712 err = drm_hdmi_avi_infoframe_from_display_mode(&frame, 713 &hdmi->output.connector, mode); 714 if (err < 0) { 715 dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err); 716 return; 717 } 718 719 err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); 720 if (err < 0) { 721 dev_err(hdmi->dev, "failed to pack AVI infoframe: %zd\n", err); 722 return; 723 } 724 725 tegra_hdmi_write_infopack(hdmi, buffer, err); 726} 727 728static void tegra_hdmi_disable_avi_infoframe(struct tegra_hdmi *hdmi) 729{ 730 u32 value; 731 732 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL); 733 value &= ~INFOFRAME_CTRL_ENABLE; 734 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL); 735} 736 737static void tegra_hdmi_enable_avi_infoframe(struct tegra_hdmi *hdmi) 738{ 739 u32 value; 740 741 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL); 742 value |= INFOFRAME_CTRL_ENABLE; 743 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL); 744} 745 746static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi) 747{ 748 struct hdmi_audio_infoframe frame; 749 u8 buffer[14]; 750 ssize_t err; 751 752 err = hdmi_audio_infoframe_init(&frame); 753 if (err < 0) { 754 dev_err(hdmi->dev, "failed to setup audio infoframe: %zd\n", 755 err); 756 return; 757 } 758 759 frame.channels = hdmi->format.channels; 760 761 err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); 762 if (err < 0) { 763 dev_err(hdmi->dev, "failed to pack audio infoframe: %zd\n", 764 err); 765 return; 766 } 767 768 /* 769 * The audio infoframe has only one set of subpack registers, so the 770 * infoframe needs to be truncated. One set of subpack registers can 771 * contain 7 bytes. Including the 3 byte header only the first 10 772 * bytes can be programmed. 773 */ 774 tegra_hdmi_write_infopack(hdmi, buffer, min_t(size_t, 10, err)); 775} 776 777static void tegra_hdmi_disable_audio_infoframe(struct tegra_hdmi *hdmi) 778{ 779 u32 value; 780 781 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL); 782 value &= ~INFOFRAME_CTRL_ENABLE; 783 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL); 784} 785 786static void tegra_hdmi_enable_audio_infoframe(struct tegra_hdmi *hdmi) 787{ 788 u32 value; 789 790 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL); 791 value |= INFOFRAME_CTRL_ENABLE; 792 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL); 793} 794 795static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi) 796{ 797 struct hdmi_vendor_infoframe frame; 798 u8 buffer[10]; 799 ssize_t err; 800 801 hdmi_vendor_infoframe_init(&frame); 802 frame.s3d_struct = HDMI_3D_STRUCTURE_FRAME_PACKING; 803 804 err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); 805 if (err < 0) { 806 dev_err(hdmi->dev, "failed to pack vendor infoframe: %zd\n", 807 err); 808 return; 809 } 810 811 tegra_hdmi_write_infopack(hdmi, buffer, err); 812} 813 814static void tegra_hdmi_disable_stereo_infoframe(struct tegra_hdmi *hdmi) 815{ 816 u32 value; 817 818 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 819 value &= ~GENERIC_CTRL_ENABLE; 820 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 821} 822 823static void tegra_hdmi_enable_stereo_infoframe(struct tegra_hdmi *hdmi) 824{ 825 u32 value; 826 827 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 828 value |= GENERIC_CTRL_ENABLE; 829 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); 830} 831 832static void tegra_hdmi_setup_tmds(struct tegra_hdmi *hdmi, 833 const struct tmds_config *tmds) 834{ 835 u32 value; 836 837 tegra_hdmi_writel(hdmi, tmds->pll0, HDMI_NV_PDISP_SOR_PLL0); 838 tegra_hdmi_writel(hdmi, tmds->pll1, HDMI_NV_PDISP_SOR_PLL1); 839 tegra_hdmi_writel(hdmi, tmds->pe_current, HDMI_NV_PDISP_PE_CURRENT); 840 841 tegra_hdmi_writel(hdmi, tmds->drive_current, 842 HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT); 843 844 value = tegra_hdmi_readl(hdmi, hdmi->config->fuse_override_offset); 845 value |= hdmi->config->fuse_override_value; 846 tegra_hdmi_writel(hdmi, value, hdmi->config->fuse_override_offset); 847 848 if (hdmi->config->has_sor_io_peak_current) 849 tegra_hdmi_writel(hdmi, tmds->peak_current, 850 HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT); 851} 852 853static int tegra_hdmi_reconfigure_audio(struct tegra_hdmi *hdmi) 854{ 855 int err; 856 857 err = tegra_hdmi_setup_audio(hdmi); 858 if (err < 0) { 859 tegra_hdmi_disable_audio_infoframe(hdmi); 860 tegra_hdmi_disable_audio(hdmi); 861 } else { 862 tegra_hdmi_setup_audio_infoframe(hdmi); 863 tegra_hdmi_enable_audio_infoframe(hdmi); 864 tegra_hdmi_enable_audio(hdmi); 865 } 866 867 return err; 868} 869 870static bool tegra_output_is_hdmi(struct tegra_output *output) 871{ 872 return output->connector.display_info.is_hdmi; 873} 874 875static enum drm_connector_status 876tegra_hdmi_connector_detect(struct drm_connector *connector, bool force) 877{ 878 struct tegra_output *output = connector_to_output(connector); 879 struct tegra_hdmi *hdmi = to_hdmi(output); 880 enum drm_connector_status status; 881 882 status = tegra_output_connector_detect(connector, force); 883 if (status == connector_status_connected) 884 return status; 885 886 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE); 887 return status; 888} 889 890#define DEBUGFS_REG32(_name) { .name = #_name, .offset = _name } 891 892static const struct debugfs_reg32 tegra_hdmi_regs[] = { 893 DEBUGFS_REG32(HDMI_CTXSW), 894 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE0), 895 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE1), 896 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE2), 897 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AN_MSB), 898 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AN_LSB), 899 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CN_MSB), 900 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CN_LSB), 901 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AKSV_MSB), 902 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AKSV_LSB), 903 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_BKSV_MSB), 904 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_BKSV_LSB), 905 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CKSV_MSB), 906 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CKSV_LSB), 907 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_DKSV_MSB), 908 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_DKSV_LSB), 909 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CTRL), 910 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CMODE), 911 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_MPRIME_MSB), 912 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_MPRIME_LSB), 913 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_MSB), 914 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB2), 915 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB1), 916 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_RI), 917 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CS_MSB), 918 DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CS_LSB), 919 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU0), 920 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU_RDATA0), 921 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU1), 922 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU2), 923 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL), 924 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_STATUS), 925 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER), 926 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_LOW), 927 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_HIGH), 928 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL), 929 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_STATUS), 930 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER), 931 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_LOW), 932 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH), 933 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_LOW), 934 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH), 935 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_CTRL), 936 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_STATUS), 937 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_HEADER), 938 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_LOW), 939 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_HIGH), 940 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_LOW), 941 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_HIGH), 942 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_LOW), 943 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_HIGH), 944 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_LOW), 945 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_HIGH), 946 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_CTRL), 947 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_LOW), 948 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_HIGH), 949 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW), 950 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH), 951 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_LOW), 952 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_HIGH), 953 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_LOW), 954 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_HIGH), 955 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_LOW), 956 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_HIGH), 957 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_LOW), 958 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_HIGH), 959 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_LOW), 960 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_HIGH), 961 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CTRL), 962 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_VSYNC_KEEPOUT), 963 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_VSYNC_WINDOW), 964 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_CTRL), 965 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_STATUS), 966 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_SUBPACK), 967 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS1), 968 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS2), 969 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU0), 970 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU1), 971 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU1_RDATA), 972 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPARE), 973 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS1), 974 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS2), 975 DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_HDCPRIF_ROM_CTRL), 976 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CAP), 977 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PWR), 978 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_TEST), 979 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL0), 980 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL1), 981 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL2), 982 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CSTM), 983 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_LVDS), 984 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CRCA), 985 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CRCB), 986 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_BLANK), 987 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_CTL), 988 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(0)), 989 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(1)), 990 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(2)), 991 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(3)), 992 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(4)), 993 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(5)), 994 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(6)), 995 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(7)), 996 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(8)), 997 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(9)), 998 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(10)), 999 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(11)), 1000 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(12)), 1001 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(13)), 1002 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(14)), 1003 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(15)), 1004 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_VCRCA0), 1005 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_VCRCA1), 1006 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CCRCA0), 1007 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CCRCA1), 1008 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_EDATAA0), 1009 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_EDATAA1), 1010 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_COUNTA0), 1011 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_COUNTA1), 1012 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_DEBUGA0), 1013 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_DEBUGA1), 1014 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_TRIG), 1015 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_MSCHECK), 1016 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT), 1017 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG0), 1018 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG1), 1019 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG2), 1020 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(0)), 1021 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(1)), 1022 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(2)), 1023 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(3)), 1024 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(4)), 1025 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(5)), 1026 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(6)), 1027 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_PULSE_WIDTH), 1028 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_THRESHOLD), 1029 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_CNTRL0), 1030 DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_N), 1031 DEBUGFS_REG32(HDMI_NV_PDISP_HDCPRIF_ROM_TIMING), 1032 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_REFCLK), 1033 DEBUGFS_REG32(HDMI_NV_PDISP_CRC_CONTROL), 1034 DEBUGFS_REG32(HDMI_NV_PDISP_INPUT_CONTROL), 1035 DEBUGFS_REG32(HDMI_NV_PDISP_SCRATCH), 1036 DEBUGFS_REG32(HDMI_NV_PDISP_PE_CURRENT), 1037 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_CTRL), 1038 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG0), 1039 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG1), 1040 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG2), 1041 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_0), 1042 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_1), 1043 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_2), 1044 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_3), 1045 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_TRIG), 1046 DEBUGFS_REG32(HDMI_NV_PDISP_KEY_SKEY_INDEX), 1047 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_CNTRL0), 1048 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_SPARE0), 1049 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0), 1050 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH1), 1051 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR), 1052 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE), 1053 DEBUGFS_REG32(HDMI_NV_PDISP_INT_STATUS), 1054 DEBUGFS_REG32(HDMI_NV_PDISP_INT_MASK), 1055 DEBUGFS_REG32(HDMI_NV_PDISP_INT_ENABLE), 1056 DEBUGFS_REG32(HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT), 1057}; 1058 1059static int tegra_hdmi_show_regs(struct seq_file *s, void *data) 1060{ 1061 struct drm_info_node *node = s->private; 1062 struct tegra_hdmi *hdmi = node->info_ent->data; 1063 struct drm_crtc *crtc = hdmi->output.encoder.crtc; 1064 struct drm_device *drm = node->minor->dev; 1065 unsigned int i; 1066 int err = 0; 1067 1068 drm_modeset_lock_all(drm); 1069 1070 if (!crtc || !crtc->state->active) { 1071 err = -EBUSY; 1072 goto unlock; 1073 } 1074 1075 for (i = 0; i < ARRAY_SIZE(tegra_hdmi_regs); i++) { 1076 unsigned int offset = tegra_hdmi_regs[i].offset; 1077 1078 seq_printf(s, "%-56s %#05x %08x\n", tegra_hdmi_regs[i].name, 1079 offset, tegra_hdmi_readl(hdmi, offset)); 1080 } 1081 1082unlock: 1083 drm_modeset_unlock_all(drm); 1084 return err; 1085} 1086 1087static struct drm_info_list debugfs_files[] = { 1088 { "regs", tegra_hdmi_show_regs, 0, NULL }, 1089}; 1090 1091static int tegra_hdmi_late_register(struct drm_connector *connector) 1092{ 1093 struct tegra_output *output = connector_to_output(connector); 1094 unsigned int i, count = ARRAY_SIZE(debugfs_files); 1095 struct drm_minor *minor = connector->dev->primary; 1096 struct dentry *root = connector->debugfs_entry; 1097 struct tegra_hdmi *hdmi = to_hdmi(output); 1098 1099 hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), 1100 GFP_KERNEL); 1101 if (!hdmi->debugfs_files) 1102 return -ENOMEM; 1103 1104 for (i = 0; i < count; i++) 1105 hdmi->debugfs_files[i].data = hdmi; 1106 1107 drm_debugfs_create_files(hdmi->debugfs_files, count, root, minor); 1108 1109 return 0; 1110} 1111 1112static void tegra_hdmi_early_unregister(struct drm_connector *connector) 1113{ 1114 struct tegra_output *output = connector_to_output(connector); 1115 struct drm_minor *minor = connector->dev->primary; 1116 unsigned int count = ARRAY_SIZE(debugfs_files); 1117 struct tegra_hdmi *hdmi = to_hdmi(output); 1118 1119 drm_debugfs_remove_files(hdmi->debugfs_files, count, minor); 1120 kfree(hdmi->debugfs_files); 1121 hdmi->debugfs_files = NULL; 1122} 1123 1124static const struct drm_connector_funcs tegra_hdmi_connector_funcs = { 1125 .reset = drm_atomic_helper_connector_reset, 1126 .detect = tegra_hdmi_connector_detect, 1127 .fill_modes = drm_helper_probe_single_connector_modes, 1128 .destroy = tegra_output_connector_destroy, 1129 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1130 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1131 .late_register = tegra_hdmi_late_register, 1132 .early_unregister = tegra_hdmi_early_unregister, 1133}; 1134 1135static enum drm_mode_status 1136tegra_hdmi_connector_mode_valid(struct drm_connector *connector, 1137 struct drm_display_mode *mode) 1138{ 1139 struct tegra_output *output = connector_to_output(connector); 1140 struct tegra_hdmi *hdmi = to_hdmi(output); 1141 unsigned long pclk = mode->clock * 1000; 1142 enum drm_mode_status status = MODE_OK; 1143 struct clk *parent; 1144 long err; 1145 1146 parent = clk_get_parent(hdmi->clk_parent); 1147 1148 err = clk_round_rate(parent, pclk * 4); 1149 if (err <= 0) 1150 status = MODE_NOCLOCK; 1151 1152 return status; 1153} 1154 1155static const struct drm_connector_helper_funcs 1156tegra_hdmi_connector_helper_funcs = { 1157 .get_modes = tegra_output_connector_get_modes, 1158 .mode_valid = tegra_hdmi_connector_mode_valid, 1159}; 1160 1161static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder) 1162{ 1163 struct tegra_output *output = encoder_to_output(encoder); 1164 struct tegra_dc *dc = to_tegra_dc(encoder->crtc); 1165 struct tegra_hdmi *hdmi = to_hdmi(output); 1166 u32 value; 1167 int err; 1168 1169 tegra_hdmi_audio_lock(hdmi); 1170 1171 /* 1172 * The following accesses registers of the display controller, so make 1173 * sure it's only executed when the output is attached to one. 1174 */ 1175 if (dc) { 1176 value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); 1177 value &= ~HDMI_ENABLE; 1178 tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); 1179 1180 tegra_dc_commit(dc); 1181 } 1182 1183 if (!hdmi->dvi) { 1184 if (hdmi->stereo) 1185 tegra_hdmi_disable_stereo_infoframe(hdmi); 1186 1187 tegra_hdmi_disable_audio_infoframe(hdmi); 1188 tegra_hdmi_disable_avi_infoframe(hdmi); 1189 tegra_hdmi_disable_audio(hdmi); 1190 } 1191 1192 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_ENABLE); 1193 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_MASK); 1194 1195 hdmi->pixel_clock = 0; 1196 1197 tegra_hdmi_audio_unlock(hdmi); 1198 1199 err = host1x_client_suspend(&hdmi->client); 1200 if (err < 0) 1201 dev_err(hdmi->dev, "failed to suspend: %d\n", err); 1202} 1203 1204static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder) 1205{ 1206 struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; 1207 unsigned int h_sync_width, h_front_porch, h_back_porch, i, rekey; 1208 struct tegra_output *output = encoder_to_output(encoder); 1209 struct tegra_dc *dc = to_tegra_dc(encoder->crtc); 1210 struct tegra_hdmi *hdmi = to_hdmi(output); 1211 unsigned int pulse_start, div82; 1212 int retries = 1000; 1213 u32 value; 1214 int err; 1215 1216 err = host1x_client_resume(&hdmi->client); 1217 if (err < 0) { 1218 dev_err(hdmi->dev, "failed to resume: %d\n", err); 1219 return; 1220 } 1221 1222 tegra_hdmi_audio_lock(hdmi); 1223 1224 /* 1225 * Enable and unmask the HDA codec SCRATCH0 register interrupt. This 1226 * is used for interoperability between the HDA codec driver and the 1227 * HDMI driver. 1228 */ 1229 tegra_hdmi_writel(hdmi, INT_CODEC_SCRATCH0, HDMI_NV_PDISP_INT_ENABLE); 1230 tegra_hdmi_writel(hdmi, INT_CODEC_SCRATCH0, HDMI_NV_PDISP_INT_MASK); 1231 1232 hdmi->pixel_clock = mode->clock * 1000; 1233 h_sync_width = mode->hsync_end - mode->hsync_start; 1234 h_back_porch = mode->htotal - mode->hsync_end; 1235 h_front_porch = mode->hsync_start - mode->hdisplay; 1236 1237 err = dev_pm_opp_set_rate(hdmi->dev, hdmi->pixel_clock); 1238 if (err < 0) { 1239 dev_err(hdmi->dev, "failed to set HDMI clock frequency: %d\n", 1240 err); 1241 } 1242 1243 DRM_DEBUG_KMS("HDMI clock rate: %lu Hz\n", clk_get_rate(hdmi->clk)); 1244 1245 /* power up sequence */ 1246 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0); 1247 value &= ~SOR_PLL_PDBG; 1248 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0); 1249 1250 usleep_range(10, 20); 1251 1252 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0); 1253 value &= ~SOR_PLL_PWR; 1254 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0); 1255 1256 tegra_dc_writel(dc, VSYNC_H_POSITION(1), 1257 DC_DISP_DISP_TIMING_OPTIONS); 1258 tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE_888, 1259 DC_DISP_DISP_COLOR_CONTROL); 1260 1261 /* video_preamble uses h_pulse2 */ 1262 pulse_start = 1 + h_sync_width + h_back_porch - 10; 1263 1264 tegra_dc_writel(dc, H_PULSE2_ENABLE, DC_DISP_DISP_SIGNAL_OPTIONS0); 1265 1266 value = PULSE_MODE_NORMAL | PULSE_POLARITY_HIGH | PULSE_QUAL_VACTIVE | 1267 PULSE_LAST_END_A; 1268 tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_CONTROL); 1269 1270 value = PULSE_START(pulse_start) | PULSE_END(pulse_start + 8); 1271 tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_POSITION_A); 1272 1273 value = VSYNC_WINDOW_END(0x210) | VSYNC_WINDOW_START(0x200) | 1274 VSYNC_WINDOW_ENABLE; 1275 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_VSYNC_WINDOW); 1276 1277 if (dc->pipe) 1278 value = HDMI_SRC_DISPLAYB; 1279 else 1280 value = HDMI_SRC_DISPLAYA; 1281 1282 if ((mode->hdisplay == 720) && ((mode->vdisplay == 480) || 1283 (mode->vdisplay == 576))) 1284 tegra_hdmi_writel(hdmi, 1285 value | ARM_VIDEO_RANGE_FULL, 1286 HDMI_NV_PDISP_INPUT_CONTROL); 1287 else 1288 tegra_hdmi_writel(hdmi, 1289 value | ARM_VIDEO_RANGE_LIMITED, 1290 HDMI_NV_PDISP_INPUT_CONTROL); 1291 1292 div82 = clk_get_rate(hdmi->clk) / 1000000 * 4; 1293 value = SOR_REFCLK_DIV_INT(div82 >> 2) | SOR_REFCLK_DIV_FRAC(div82); 1294 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_REFCLK); 1295 1296 hdmi->dvi = !tegra_output_is_hdmi(output); 1297 if (!hdmi->dvi) { 1298 /* 1299 * Make sure that the audio format has been configured before 1300 * enabling audio, otherwise we may try to divide by zero. 1301 */ 1302 if (hdmi->format.sample_rate > 0) { 1303 err = tegra_hdmi_setup_audio(hdmi); 1304 if (err < 0) 1305 hdmi->dvi = true; 1306 } 1307 } 1308 1309 if (hdmi->config->has_hda) 1310 tegra_hdmi_write_eld(hdmi); 1311 1312 rekey = HDMI_REKEY_DEFAULT; 1313 value = HDMI_CTRL_REKEY(rekey); 1314 value |= HDMI_CTRL_MAX_AC_PACKET((h_sync_width + h_back_porch + 1315 h_front_porch - rekey - 18) / 32); 1316 1317 if (!hdmi->dvi) 1318 value |= HDMI_CTRL_ENABLE; 1319 1320 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_CTRL); 1321 1322 if (!hdmi->dvi) { 1323 tegra_hdmi_setup_avi_infoframe(hdmi, mode); 1324 tegra_hdmi_setup_audio_infoframe(hdmi); 1325 1326 if (hdmi->stereo) 1327 tegra_hdmi_setup_stereo_infoframe(hdmi); 1328 } 1329 1330 /* TMDS CONFIG */ 1331 for (i = 0; i < hdmi->config->num_tmds; i++) { 1332 if (hdmi->pixel_clock <= hdmi->config->tmds[i].pclk) { 1333 tegra_hdmi_setup_tmds(hdmi, &hdmi->config->tmds[i]); 1334 break; 1335 } 1336 } 1337 1338 tegra_hdmi_writel(hdmi, 1339 SOR_SEQ_PU_PC(0) | 1340 SOR_SEQ_PU_PC_ALT(0) | 1341 SOR_SEQ_PD_PC(8) | 1342 SOR_SEQ_PD_PC_ALT(8), 1343 HDMI_NV_PDISP_SOR_SEQ_CTL); 1344 1345 value = SOR_SEQ_INST_WAIT_TIME(1) | 1346 SOR_SEQ_INST_WAIT_UNITS_VSYNC | 1347 SOR_SEQ_INST_HALT | 1348 SOR_SEQ_INST_PIN_A_LOW | 1349 SOR_SEQ_INST_PIN_B_LOW | 1350 SOR_SEQ_INST_DRIVE_PWM_OUT_LO; 1351 1352 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(0)); 1353 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(8)); 1354 1355 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_CSTM); 1356 value &= ~SOR_CSTM_ROTCLK(~0); 1357 value |= SOR_CSTM_ROTCLK(2); 1358 value |= SOR_CSTM_PLLDIV; 1359 value &= ~SOR_CSTM_LVDS_ENABLE; 1360 value &= ~SOR_CSTM_MODE_MASK; 1361 value |= SOR_CSTM_MODE_TMDS; 1362 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM); 1363 1364 /* start SOR */ 1365 tegra_hdmi_writel(hdmi, 1366 SOR_PWR_NORMAL_STATE_PU | 1367 SOR_PWR_NORMAL_START_NORMAL | 1368 SOR_PWR_SAFE_STATE_PD | 1369 SOR_PWR_SETTING_NEW_TRIGGER, 1370 HDMI_NV_PDISP_SOR_PWR); 1371 tegra_hdmi_writel(hdmi, 1372 SOR_PWR_NORMAL_STATE_PU | 1373 SOR_PWR_NORMAL_START_NORMAL | 1374 SOR_PWR_SAFE_STATE_PD | 1375 SOR_PWR_SETTING_NEW_DONE, 1376 HDMI_NV_PDISP_SOR_PWR); 1377 1378 do { 1379 BUG_ON(--retries < 0); 1380 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PWR); 1381 } while (value & SOR_PWR_SETTING_NEW_PENDING); 1382 1383 value = SOR_STATE_ASY_CRCMODE_COMPLETE | 1384 SOR_STATE_ASY_OWNER_HEAD0 | 1385 SOR_STATE_ASY_SUBOWNER_BOTH | 1386 SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A | 1387 SOR_STATE_ASY_DEPOL_POS; 1388 1389 /* setup sync polarities */ 1390 if (mode->flags & DRM_MODE_FLAG_PHSYNC) 1391 value |= SOR_STATE_ASY_HSYNCPOL_POS; 1392 1393 if (mode->flags & DRM_MODE_FLAG_NHSYNC) 1394 value |= SOR_STATE_ASY_HSYNCPOL_NEG; 1395 1396 if (mode->flags & DRM_MODE_FLAG_PVSYNC) 1397 value |= SOR_STATE_ASY_VSYNCPOL_POS; 1398 1399 if (mode->flags & DRM_MODE_FLAG_NVSYNC) 1400 value |= SOR_STATE_ASY_VSYNCPOL_NEG; 1401 1402 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE2); 1403 1404 value = SOR_STATE_ASY_HEAD_OPMODE_AWAKE | SOR_STATE_ASY_ORMODE_NORMAL; 1405 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE1); 1406 1407 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0); 1408 tegra_hdmi_writel(hdmi, SOR_STATE_UPDATE, HDMI_NV_PDISP_SOR_STATE0); 1409 tegra_hdmi_writel(hdmi, value | SOR_STATE_ATTACHED, 1410 HDMI_NV_PDISP_SOR_STATE1); 1411 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0); 1412 1413 value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); 1414 value |= HDMI_ENABLE; 1415 tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); 1416 1417 tegra_dc_commit(dc); 1418 1419 if (!hdmi->dvi) { 1420 tegra_hdmi_enable_avi_infoframe(hdmi); 1421 tegra_hdmi_enable_audio_infoframe(hdmi); 1422 tegra_hdmi_enable_audio(hdmi); 1423 1424 if (hdmi->stereo) 1425 tegra_hdmi_enable_stereo_infoframe(hdmi); 1426 } 1427 1428 /* TODO: add HDCP support */ 1429 1430 tegra_hdmi_audio_unlock(hdmi); 1431} 1432 1433static int 1434tegra_hdmi_encoder_atomic_check(struct drm_encoder *encoder, 1435 struct drm_crtc_state *crtc_state, 1436 struct drm_connector_state *conn_state) 1437{ 1438 struct tegra_output *output = encoder_to_output(encoder); 1439 struct tegra_dc *dc = to_tegra_dc(conn_state->crtc); 1440 unsigned long pclk = crtc_state->mode.clock * 1000; 1441 struct tegra_hdmi *hdmi = to_hdmi(output); 1442 int err; 1443 1444 err = tegra_dc_state_setup_clock(dc, crtc_state, hdmi->clk_parent, 1445 pclk, 0); 1446 if (err < 0) { 1447 dev_err(output->dev, "failed to setup CRTC state: %d\n", err); 1448 return err; 1449 } 1450 1451 return err; 1452} 1453 1454static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = { 1455 .disable = tegra_hdmi_encoder_disable, 1456 .enable = tegra_hdmi_encoder_enable, 1457 .atomic_check = tegra_hdmi_encoder_atomic_check, 1458}; 1459 1460static int tegra_hdmi_hw_params(struct device *dev, void *data, 1461 struct hdmi_codec_daifmt *fmt, 1462 struct hdmi_codec_params *hparms) 1463{ 1464 struct tegra_hdmi *hdmi = data; 1465 int ret = 0; 1466 1467 tegra_hdmi_audio_lock(hdmi); 1468 1469 hdmi->format.sample_rate = hparms->sample_rate; 1470 hdmi->format.channels = hparms->channels; 1471 1472 if (hdmi->pixel_clock && !hdmi->dvi) 1473 ret = tegra_hdmi_reconfigure_audio(hdmi); 1474 1475 tegra_hdmi_audio_unlock(hdmi); 1476 1477 return ret; 1478} 1479 1480static int tegra_hdmi_audio_startup(struct device *dev, void *data) 1481{ 1482 struct tegra_hdmi *hdmi = data; 1483 int ret; 1484 1485 ret = host1x_client_resume(&hdmi->client); 1486 if (ret < 0) 1487 dev_err(hdmi->dev, "failed to resume: %d\n", ret); 1488 1489 return ret; 1490} 1491 1492static void tegra_hdmi_audio_shutdown(struct device *dev, void *data) 1493{ 1494 struct tegra_hdmi *hdmi = data; 1495 int ret; 1496 1497 tegra_hdmi_audio_lock(hdmi); 1498 1499 hdmi->format.sample_rate = 0; 1500 hdmi->format.channels = 0; 1501 1502 tegra_hdmi_audio_unlock(hdmi); 1503 1504 ret = host1x_client_suspend(&hdmi->client); 1505 if (ret < 0) 1506 dev_err(hdmi->dev, "failed to suspend: %d\n", ret); 1507} 1508 1509static const struct hdmi_codec_ops tegra_hdmi_codec_ops = { 1510 .hw_params = tegra_hdmi_hw_params, 1511 .audio_startup = tegra_hdmi_audio_startup, 1512 .audio_shutdown = tegra_hdmi_audio_shutdown, 1513}; 1514 1515static int tegra_hdmi_codec_register(struct tegra_hdmi *hdmi) 1516{ 1517 struct hdmi_codec_pdata codec_data = {}; 1518 1519 if (hdmi->config->has_hda) 1520 return 0; 1521 1522 codec_data.ops = &tegra_hdmi_codec_ops; 1523 codec_data.data = hdmi; 1524 codec_data.spdif = 1; 1525 1526 hdmi->audio_pdev = platform_device_register_data(hdmi->dev, 1527 HDMI_CODEC_DRV_NAME, 1528 PLATFORM_DEVID_AUTO, 1529 &codec_data, 1530 sizeof(codec_data)); 1531 if (IS_ERR(hdmi->audio_pdev)) 1532 return PTR_ERR(hdmi->audio_pdev); 1533 1534 hdmi->format.channels = 2; 1535 1536 return 0; 1537} 1538 1539static void tegra_hdmi_codec_unregister(struct tegra_hdmi *hdmi) 1540{ 1541 if (hdmi->audio_pdev) 1542 platform_device_unregister(hdmi->audio_pdev); 1543} 1544 1545static int tegra_hdmi_init(struct host1x_client *client) 1546{ 1547 struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); 1548 struct drm_device *drm = dev_get_drvdata(client->host); 1549 struct drm_connector *connector; 1550 int err; 1551 1552 hdmi->output.dev = client->dev; 1553 1554 drm_simple_encoder_init(drm, &hdmi->output.encoder, 1555 DRM_MODE_ENCODER_TMDS); 1556 drm_encoder_helper_add(&hdmi->output.encoder, 1557 &tegra_hdmi_encoder_helper_funcs); 1558 1559 if (hdmi->output.bridge) { 1560 err = drm_bridge_attach(&hdmi->output.encoder, hdmi->output.bridge, 1561 NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR); 1562 if (err) { 1563 dev_err(client->dev, "failed to attach bridge: %d\n", 1564 err); 1565 return err; 1566 } 1567 1568 connector = drm_bridge_connector_init(drm, &hdmi->output.encoder); 1569 if (IS_ERR(connector)) { 1570 dev_err(client->dev, 1571 "failed to initialize bridge connector: %pe\n", 1572 connector); 1573 return PTR_ERR(connector); 1574 } 1575 1576 drm_connector_attach_encoder(connector, &hdmi->output.encoder); 1577 } else { 1578 drm_connector_init_with_ddc(drm, &hdmi->output.connector, 1579 &tegra_hdmi_connector_funcs, 1580 DRM_MODE_CONNECTOR_HDMIA, 1581 hdmi->output.ddc); 1582 drm_connector_helper_add(&hdmi->output.connector, 1583 &tegra_hdmi_connector_helper_funcs); 1584 hdmi->output.connector.dpms = DRM_MODE_DPMS_OFF; 1585 1586 drm_connector_attach_encoder(&hdmi->output.connector, 1587 &hdmi->output.encoder); 1588 drm_connector_register(&hdmi->output.connector); 1589 } 1590 1591 err = tegra_output_init(drm, &hdmi->output); 1592 if (err < 0) { 1593 dev_err(client->dev, "failed to initialize output: %d\n", err); 1594 return err; 1595 } 1596 1597 hdmi->output.encoder.possible_crtcs = 0x3; 1598 1599 err = regulator_enable(hdmi->hdmi); 1600 if (err < 0) { 1601 dev_err(client->dev, "failed to enable HDMI regulator: %d\n", 1602 err); 1603 goto output_exit; 1604 } 1605 1606 err = regulator_enable(hdmi->pll); 1607 if (err < 0) { 1608 dev_err(hdmi->dev, "failed to enable PLL regulator: %d\n", err); 1609 goto disable_hdmi; 1610 } 1611 1612 err = regulator_enable(hdmi->vdd); 1613 if (err < 0) { 1614 dev_err(hdmi->dev, "failed to enable VDD regulator: %d\n", err); 1615 goto disable_pll; 1616 } 1617 1618 err = tegra_hdmi_codec_register(hdmi); 1619 if (err < 0) { 1620 dev_err(hdmi->dev, "failed to register audio codec: %d\n", err); 1621 goto disable_vdd; 1622 } 1623 1624 return 0; 1625 1626disable_vdd: 1627 regulator_disable(hdmi->vdd); 1628disable_pll: 1629 regulator_disable(hdmi->pll); 1630disable_hdmi: 1631 regulator_disable(hdmi->hdmi); 1632output_exit: 1633 tegra_output_exit(&hdmi->output); 1634 1635 return err; 1636} 1637 1638static int tegra_hdmi_exit(struct host1x_client *client) 1639{ 1640 struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); 1641 1642 tegra_hdmi_codec_unregister(hdmi); 1643 1644 tegra_output_exit(&hdmi->output); 1645 1646 regulator_disable(hdmi->vdd); 1647 regulator_disable(hdmi->pll); 1648 regulator_disable(hdmi->hdmi); 1649 1650 return 0; 1651} 1652 1653static int tegra_hdmi_runtime_suspend(struct host1x_client *client) 1654{ 1655 struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); 1656 struct device *dev = client->dev; 1657 int err; 1658 1659 err = reset_control_assert(hdmi->rst); 1660 if (err < 0) { 1661 dev_err(dev, "failed to assert reset: %d\n", err); 1662 return err; 1663 } 1664 1665 usleep_range(1000, 2000); 1666 1667 clk_disable_unprepare(hdmi->clk); 1668 pm_runtime_put_sync(dev); 1669 1670 return 0; 1671} 1672 1673static int tegra_hdmi_runtime_resume(struct host1x_client *client) 1674{ 1675 struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); 1676 struct device *dev = client->dev; 1677 int err; 1678 1679 err = pm_runtime_resume_and_get(dev); 1680 if (err < 0) { 1681 dev_err(dev, "failed to get runtime PM: %d\n", err); 1682 return err; 1683 } 1684 1685 err = clk_prepare_enable(hdmi->clk); 1686 if (err < 0) { 1687 dev_err(dev, "failed to enable clock: %d\n", err); 1688 goto put_rpm; 1689 } 1690 1691 usleep_range(1000, 2000); 1692 1693 err = reset_control_deassert(hdmi->rst); 1694 if (err < 0) { 1695 dev_err(dev, "failed to deassert reset: %d\n", err); 1696 goto disable_clk; 1697 } 1698 1699 return 0; 1700 1701disable_clk: 1702 clk_disable_unprepare(hdmi->clk); 1703put_rpm: 1704 pm_runtime_put_sync(dev); 1705 return err; 1706} 1707 1708static const struct host1x_client_ops hdmi_client_ops = { 1709 .init = tegra_hdmi_init, 1710 .exit = tegra_hdmi_exit, 1711 .suspend = tegra_hdmi_runtime_suspend, 1712 .resume = tegra_hdmi_runtime_resume, 1713}; 1714 1715static const struct tegra_hdmi_config tegra20_hdmi_config = { 1716 .tmds = tegra20_tmds_config, 1717 .num_tmds = ARRAY_SIZE(tegra20_tmds_config), 1718 .fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT, 1719 .fuse_override_value = 1 << 31, 1720 .has_sor_io_peak_current = false, 1721 .has_hda = false, 1722 .has_hbr = false, 1723}; 1724 1725static const struct tegra_hdmi_config tegra30_hdmi_config = { 1726 .tmds = tegra30_tmds_config, 1727 .num_tmds = ARRAY_SIZE(tegra30_tmds_config), 1728 .fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT, 1729 .fuse_override_value = 1 << 31, 1730 .has_sor_io_peak_current = false, 1731 .has_hda = true, 1732 .has_hbr = false, 1733}; 1734 1735static const struct tegra_hdmi_config tegra114_hdmi_config = { 1736 .tmds = tegra114_tmds_config, 1737 .num_tmds = ARRAY_SIZE(tegra114_tmds_config), 1738 .fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0, 1739 .fuse_override_value = 1 << 31, 1740 .has_sor_io_peak_current = true, 1741 .has_hda = true, 1742 .has_hbr = true, 1743}; 1744 1745static const struct tegra_hdmi_config tegra124_hdmi_config = { 1746 .tmds = tegra124_tmds_config, 1747 .num_tmds = ARRAY_SIZE(tegra124_tmds_config), 1748 .fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0, 1749 .fuse_override_value = 1 << 31, 1750 .has_sor_io_peak_current = true, 1751 .has_hda = true, 1752 .has_hbr = true, 1753}; 1754 1755static const struct of_device_id tegra_hdmi_of_match[] = { 1756 { .compatible = "nvidia,tegra124-hdmi", .data = &tegra124_hdmi_config }, 1757 { .compatible = "nvidia,tegra114-hdmi", .data = &tegra114_hdmi_config }, 1758 { .compatible = "nvidia,tegra30-hdmi", .data = &tegra30_hdmi_config }, 1759 { .compatible = "nvidia,tegra20-hdmi", .data = &tegra20_hdmi_config }, 1760 { }, 1761}; 1762MODULE_DEVICE_TABLE(of, tegra_hdmi_of_match); 1763 1764static irqreturn_t tegra_hdmi_irq(int irq, void *data) 1765{ 1766 struct tegra_hdmi *hdmi = data; 1767 u32 value; 1768 1769 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_INT_STATUS); 1770 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_INT_STATUS); 1771 1772 if (value & INT_CODEC_SCRATCH0) { 1773 unsigned int format; 1774 u32 value; 1775 1776 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0); 1777 1778 if (value & SOR_AUDIO_HDA_CODEC_SCRATCH0_VALID) { 1779 format = value & SOR_AUDIO_HDA_CODEC_SCRATCH0_FMT_MASK; 1780 1781 tegra_hda_parse_format(format, &hdmi->format); 1782 tegra_hdmi_reconfigure_audio(hdmi); 1783 } else { 1784 tegra_hdmi_disable_audio_infoframe(hdmi); 1785 tegra_hdmi_disable_audio(hdmi); 1786 } 1787 } 1788 1789 return IRQ_HANDLED; 1790} 1791 1792static int tegra_hdmi_probe(struct platform_device *pdev) 1793{ 1794 struct tegra_hdmi *hdmi; 1795 int err; 1796 1797 hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL); 1798 if (!hdmi) 1799 return -ENOMEM; 1800 1801 hdmi->config = of_device_get_match_data(&pdev->dev); 1802 hdmi->dev = &pdev->dev; 1803 1804 hdmi->audio_source = AUTO; 1805 hdmi->stereo = false; 1806 hdmi->dvi = false; 1807 1808 mutex_init(&hdmi->audio_lock); 1809 1810 hdmi->clk = devm_clk_get(&pdev->dev, NULL); 1811 if (IS_ERR(hdmi->clk)) { 1812 dev_err(&pdev->dev, "failed to get clock\n"); 1813 return PTR_ERR(hdmi->clk); 1814 } 1815 1816 hdmi->rst = devm_reset_control_get(&pdev->dev, "hdmi"); 1817 if (IS_ERR(hdmi->rst)) { 1818 dev_err(&pdev->dev, "failed to get reset\n"); 1819 return PTR_ERR(hdmi->rst); 1820 } 1821 1822 hdmi->clk_parent = devm_clk_get(&pdev->dev, "parent"); 1823 if (IS_ERR(hdmi->clk_parent)) 1824 return PTR_ERR(hdmi->clk_parent); 1825 1826 err = clk_set_parent(hdmi->clk, hdmi->clk_parent); 1827 if (err < 0) { 1828 dev_err(&pdev->dev, "failed to setup clocks: %d\n", err); 1829 return err; 1830 } 1831 1832 hdmi->hdmi = devm_regulator_get(&pdev->dev, "hdmi"); 1833 err = PTR_ERR_OR_ZERO(hdmi->hdmi); 1834 if (err) 1835 return dev_err_probe(&pdev->dev, err, 1836 "failed to get HDMI regulator\n"); 1837 1838 hdmi->pll = devm_regulator_get(&pdev->dev, "pll"); 1839 err = PTR_ERR_OR_ZERO(hdmi->pll); 1840 if (err) 1841 return dev_err_probe(&pdev->dev, err, 1842 "failed to get PLL regulator\n"); 1843 1844 hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd"); 1845 err = PTR_ERR_OR_ZERO(hdmi->vdd); 1846 if (err) 1847 return dev_err_probe(&pdev->dev, err, 1848 "failed to get VDD regulator\n"); 1849 1850 hdmi->output.dev = &pdev->dev; 1851 1852 err = tegra_output_probe(&hdmi->output); 1853 if (err < 0) 1854 return err; 1855 1856 hdmi->regs = devm_platform_ioremap_resource(pdev, 0); 1857 if (IS_ERR(hdmi->regs)) { 1858 err = PTR_ERR(hdmi->regs); 1859 goto remove; 1860 } 1861 1862 err = platform_get_irq(pdev, 0); 1863 if (err < 0) 1864 goto remove; 1865 1866 hdmi->irq = err; 1867 1868 err = devm_request_irq(hdmi->dev, hdmi->irq, tegra_hdmi_irq, 0, 1869 dev_name(hdmi->dev), hdmi); 1870 if (err < 0) { 1871 dev_err(&pdev->dev, "failed to request IRQ#%u: %d\n", 1872 hdmi->irq, err); 1873 goto remove; 1874 } 1875 1876 platform_set_drvdata(pdev, hdmi); 1877 1878 err = devm_pm_runtime_enable(&pdev->dev); 1879 if (err) 1880 goto remove; 1881 1882 err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); 1883 if (err) 1884 goto remove; 1885 1886 INIT_LIST_HEAD(&hdmi->client.list); 1887 hdmi->client.ops = &hdmi_client_ops; 1888 hdmi->client.dev = &pdev->dev; 1889 1890 err = host1x_client_register(&hdmi->client); 1891 if (err < 0) { 1892 dev_err(&pdev->dev, "failed to register host1x client: %d\n", 1893 err); 1894 goto remove; 1895 } 1896 1897 return 0; 1898 1899remove: 1900 tegra_output_remove(&hdmi->output); 1901 return err; 1902} 1903 1904static void tegra_hdmi_remove(struct platform_device *pdev) 1905{ 1906 struct tegra_hdmi *hdmi = platform_get_drvdata(pdev); 1907 1908 host1x_client_unregister(&hdmi->client); 1909 1910 tegra_output_remove(&hdmi->output); 1911} 1912 1913struct platform_driver tegra_hdmi_driver = { 1914 .driver = { 1915 .name = "tegra-hdmi", 1916 .of_match_table = tegra_hdmi_of_match, 1917 }, 1918 .probe = tegra_hdmi_probe, 1919 .remove_new = tegra_hdmi_remove, 1920}; 1921