kernel/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  * jim liu <jim.liu@intel.com>
  25  * Jackie Li<yaodong.li@intel.com>
  26  */
  27
  28 #include "mdfld_dsi_dpi.h"
  29 #include "mdfld_output.h"
  30 #include "mdfld_dsi_pkg_sender.h"
  31 #include "psb_drv.h"
  32 #include "tc35876x-dsi-lvds.h"
  33
  34 static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output,
  35                                                                 int pipe);
  36
  37 static void mdfld_wait_for_HS_DATA_FIFO(struct drm_device *dev, u32 pipe)
  38 {
  39         u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
  40         int timeout = 0;
  41
  42         udelay(500);
  43
  44         /* This will time out after approximately 2+ seconds */
  45         while ((timeout < 20000) &&
  46                 (REG_READ(gen_fifo_stat_reg) & DSI_FIFO_GEN_HS_DATA_FULL)) {
  47                 udelay(100);
  48                 timeout++;
  49         }
  50
  51         if (timeout == 20000)
  52                 DRM_INFO("MIPI: HS Data FIFO was never cleared!\n");
  53 }
  54
  55 static void mdfld_wait_for_HS_CTRL_FIFO(struct drm_device *dev, u32 pipe)
  56 {
  57         u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
  58         int timeout = 0;
  59
  60         udelay(500);
  61
  62         /* This will time out after approximately 2+ seconds */
  63         while ((timeout < 20000) && (REG_READ(gen_fifo_stat_reg)
  64                                         & DSI_FIFO_GEN_HS_CTRL_FULL)) {
  65                 udelay(100);
  66                 timeout++;
  67         }
  68         if (timeout == 20000)
  69                 DRM_INFO("MIPI: HS CMD FIFO was never cleared!\n");
  70 }
  71
  72 static void mdfld_wait_for_DPI_CTRL_FIFO(struct drm_device *dev, u32 pipe)
  73 {
  74         u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
  75         int timeout = 0;
  76
  77         udelay(500);
  78
  79         /* This will time out after approximately 2+ seconds */
  80         while ((timeout < 20000) && ((REG_READ(gen_fifo_stat_reg) &
  81                                         DPI_FIFO_EMPTY) != DPI_FIFO_EMPTY)) {
  82                 udelay(100);
  83                 timeout++;
  84         }
  85
  86         if (timeout == 20000)
  87                 DRM_ERROR("MIPI: DPI FIFO was never cleared\n");
  88 }
  89
  90 static void mdfld_wait_for_SPL_PKG_SENT(struct drm_device *dev, u32 pipe)
  91 {
  92         u32 intr_stat_reg = MIPI_INTR_STAT_REG(pipe);
  93         int timeout = 0;
  94
  95         udelay(500);
  96
  97         /* This will time out after approximately 2+ seconds */
  98         while ((timeout < 20000) && (!(REG_READ(intr_stat_reg)
  99                                         & DSI_INTR_STATE_SPL_PKG_SENT))) {
 100                 udelay(100);
 101                 timeout++;
 102         }
 103
 104         if (timeout == 20000)
 105                 DRM_ERROR("MIPI: SPL_PKT_SENT_INTERRUPT was not sent successfully!\n");
 106 }
 107
 108 /* For TC35876X */
 109
 110 static void dsi_set_device_ready_state(struct drm_device *dev, int state,
 111                                 int pipe)
 112 {
 113         REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), !!state, 0, 0);
 114 }
 115
 116 static void dsi_set_pipe_plane_enable_state(struct drm_device *dev,
 117                                                         int state, int pipe)
 118 {
 119         struct drm_psb_private *dev_priv = dev->dev_private;
 120         u32 pipeconf_reg = PIPEACONF;
 121         u32 dspcntr_reg = DSPACNTR;
 122
 123         u32 dspcntr = dev_priv->dspcntr[pipe];
 124         u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
 125
 126         if (pipe) {
 127                 pipeconf_reg = PIPECCONF;
 128                 dspcntr_reg = DSPCCNTR;
 129         } else
 130                 mipi &= (~0x03);
 131
 132         if (state) {
 133                 /*Set up pipe */
 134                 REG_WRITE(pipeconf_reg, BIT(31));
 135
 136                 if (REG_BIT_WAIT(pipeconf_reg, 1, 30))
 137                         dev_err(&dev->pdev->dev, "%s: Pipe enable timeout\n",
 138                                 __func__);
 139
 140                 /*Set up display plane */
 141                 REG_WRITE(dspcntr_reg, dspcntr);
 142         } else {
 143                 u32 dspbase_reg = pipe ? MDFLD_DSPCBASE : MRST_DSPABASE;
 144
 145                 /* Put DSI lanes to ULPS to disable pipe */
 146                 REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 2, 2, 1);
 147                 REG_READ(MIPI_DEVICE_READY_REG(pipe)); /* posted write? */
 148
 149                 /* LP Hold */
 150                 REG_FLD_MOD(MIPI_PORT_CONTROL(pipe), 0, 16, 16);
 151                 REG_READ(MIPI_PORT_CONTROL(pipe)); /* posted write? */
 152
 153                 /* Disable display plane */
 154                 REG_FLD_MOD(dspcntr_reg, 0, 31, 31);
 155
 156                 /* Flush the plane changes ??? posted write? */
 157                 REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
 158                 REG_READ(dspbase_reg);
 159
 160                 /* Disable PIPE */
 161                 REG_FLD_MOD(pipeconf_reg, 0, 31, 31);
 162
 163                 if (REG_BIT_WAIT(pipeconf_reg, 0, 30))
 164                         dev_err(&dev->pdev->dev, "%s: Pipe disable timeout\n",
 165                                 __func__);
 166
 167                 if (REG_BIT_WAIT(MIPI_GEN_FIFO_STAT_REG(pipe), 1, 28))
 168                         dev_err(&dev->pdev->dev, "%s: FIFO not empty\n",
 169                                 __func__);
 170         }
 171 }
 172
 173 static void mdfld_dsi_configure_down(struct mdfld_dsi_encoder *dsi_encoder,
 174                                                                 int pipe)
 175 {
 176         struct mdfld_dsi_dpi_output *dpi_output =
 177                                 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
 178         struct mdfld_dsi_config *dsi_config =
 179                                 mdfld_dsi_encoder_get_config(dsi_encoder);
 180         struct drm_device *dev = dsi_config->dev;
 181         struct drm_psb_private *dev_priv = dev->dev_private;
 182
 183         if (!dev_priv->dpi_panel_on[pipe]) {
 184                 dev_err(dev->dev, "DPI panel is already off\n");
 185                 return;
 186         }
 187         tc35876x_toshiba_bridge_panel_off(dev);
 188         tc35876x_set_bridge_reset_state(dev, 1);
 189         dsi_set_pipe_plane_enable_state(dev, 0, pipe);
 190         mdfld_dsi_dpi_shut_down(dpi_output, pipe);
 191         dsi_set_device_ready_state(dev, 0, pipe);
 192 }
 193
 194 static void mdfld_dsi_configure_up(struct mdfld_dsi_encoder *dsi_encoder,
 195                                                                 int pipe)
 196 {
 197         struct mdfld_dsi_dpi_output *dpi_output =
 198                                 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
 199         struct mdfld_dsi_config *dsi_config =
 200                                 mdfld_dsi_encoder_get_config(dsi_encoder);
 201         struct drm_device *dev = dsi_config->dev;
 202         struct drm_psb_private *dev_priv = dev->dev_private;
 203
 204         if (dev_priv->dpi_panel_on[pipe]) {
 205                 dev_err(dev->dev, "DPI panel is already on\n");
 206                 return;
 207         }
 208
 209         /* For resume path sequence */
 210         mdfld_dsi_dpi_shut_down(dpi_output, pipe);
 211         dsi_set_device_ready_state(dev, 0, pipe);
 212
 213         dsi_set_device_ready_state(dev, 1, pipe);
 214         tc35876x_set_bridge_reset_state(dev, 0);
 215         tc35876x_configure_lvds_bridge(dev);
 216         mdfld_dsi_dpi_turn_on(dpi_output, pipe);  /* Send turn on command */
 217         dsi_set_pipe_plane_enable_state(dev, 1, pipe);
 218 }
 219 /* End for TC35876X */
 220
 221 /* ************************************************************************* *\
 222  * FUNCTION: mdfld_dsi_tpo_ic_init
 223  *
 224  * DESCRIPTION:  This function is called only by mrst_dsi_mode_set and
 225  *               restore_display_registers.  since this function does not
 226  *               acquire the mutex, it is important that the calling function
 227  *               does!
 228 \* ************************************************************************* */
 229 static void mdfld_dsi_tpo_ic_init(struct mdfld_dsi_config *dsi_config, u32 pipe)
 230 {
 231         struct drm_device *dev = dsi_config->dev;
 232         u32 dcsChannelNumber = dsi_config->channel_num;
 233         u32 gen_data_reg = MIPI_HS_GEN_DATA_REG(pipe);
 234         u32 gen_ctrl_reg = MIPI_HS_GEN_CTRL_REG(pipe);
 235         u32 gen_ctrl_val = GEN_LONG_WRITE;
 236
 237         DRM_INFO("Enter mrst init TPO MIPI display.\n");
 238
 239         gen_ctrl_val |= dcsChannelNumber << DCS_CHANNEL_NUMBER_POS;
 240
 241         /* Flip page order */
 242         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 243         REG_WRITE(gen_data_reg, 0x00008036);
 244         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 245         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
 246
 247         /* 0xF0 */
 248         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 249         REG_WRITE(gen_data_reg, 0x005a5af0);
 250         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 251         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
 252
 253         /* Write protection key */
 254         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 255         REG_WRITE(gen_data_reg, 0x005a5af1);
 256         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 257         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
 258
 259         /* 0xFC */
 260         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 261         REG_WRITE(gen_data_reg, 0x005a5afc);
 262         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 263         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
 264
 265         /* 0xB7 */
 266         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 267         REG_WRITE(gen_data_reg, 0x770000b7);
 268         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 269         REG_WRITE(gen_data_reg, 0x00000044);
 270         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 271         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x05 << WORD_COUNTS_POS));
 272
 273         /* 0xB6 */
 274         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 275         REG_WRITE(gen_data_reg, 0x000a0ab6);
 276         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 277         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
 278
 279         /* 0xF2 */
 280         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 281         REG_WRITE(gen_data_reg, 0x081010f2);
 282         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 283         REG_WRITE(gen_data_reg, 0x4a070708);
 284         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 285         REG_WRITE(gen_data_reg, 0x000000c5);
 286         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 287         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
 288
 289         /* 0xF8 */
 290         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 291         REG_WRITE(gen_data_reg, 0x024003f8);
 292         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 293         REG_WRITE(gen_data_reg, 0x01030a04);
 294         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 295         REG_WRITE(gen_data_reg, 0x0e020220);
 296         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 297         REG_WRITE(gen_data_reg, 0x00000004);
 298         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 299         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x0d << WORD_COUNTS_POS));
 300
 301         /* 0xE2 */
 302         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 303         REG_WRITE(gen_data_reg, 0x398fc3e2);
 304         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 305         REG_WRITE(gen_data_reg, 0x0000916f);
 306         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 307         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x06 << WORD_COUNTS_POS));
 308
 309         /* 0xB0 */
 310         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 311         REG_WRITE(gen_data_reg, 0x000000b0);
 312         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 313         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
 314
 315         /* 0xF4 */
 316         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 317         REG_WRITE(gen_data_reg, 0x240242f4);
 318         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 319         REG_WRITE(gen_data_reg, 0x78ee2002);
 320         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 321         REG_WRITE(gen_data_reg, 0x2a071050);
 322         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 323         REG_WRITE(gen_data_reg, 0x507fee10);
 324         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 325         REG_WRITE(gen_data_reg, 0x10300710);
 326         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 327         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x14 << WORD_COUNTS_POS));
 328
 329         /* 0xBA */
 330         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 331         REG_WRITE(gen_data_reg, 0x19fe07ba);
 332         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 333         REG_WRITE(gen_data_reg, 0x101c0a31);
 334         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 335         REG_WRITE(gen_data_reg, 0x00000010);
 336         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 337         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
 338
 339         /* 0xBB */
 340         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 341         REG_WRITE(gen_data_reg, 0x28ff07bb);
 342         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 343         REG_WRITE(gen_data_reg, 0x24280a31);
 344         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 345         REG_WRITE(gen_data_reg, 0x00000034);
 346         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 347         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
 348
 349         /* 0xFB */
 350         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 351         REG_WRITE(gen_data_reg, 0x535d05fb);
 352         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 353         REG_WRITE(gen_data_reg, 0x1b1a2130);
 354         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 355         REG_WRITE(gen_data_reg, 0x221e180e);
 356         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 357         REG_WRITE(gen_data_reg, 0x131d2120);
 358         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 359         REG_WRITE(gen_data_reg, 0x535d0508);
 360         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 361         REG_WRITE(gen_data_reg, 0x1c1a2131);
 362         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 363         REG_WRITE(gen_data_reg, 0x231f160d);
 364         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 365         REG_WRITE(gen_data_reg, 0x111b2220);
 366         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 367         REG_WRITE(gen_data_reg, 0x535c2008);
 368         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 369         REG_WRITE(gen_data_reg, 0x1f1d2433);
 370         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 371         REG_WRITE(gen_data_reg, 0x2c251a10);
 372         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 373         REG_WRITE(gen_data_reg, 0x2c34372d);
 374         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 375         REG_WRITE(gen_data_reg, 0x00000023);
 376         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 377         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
 378
 379         /* 0xFA */
 380         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 381         REG_WRITE(gen_data_reg, 0x525c0bfa);
 382         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 383         REG_WRITE(gen_data_reg, 0x1c1c232f);
 384         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 385         REG_WRITE(gen_data_reg, 0x2623190e);
 386         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 387         REG_WRITE(gen_data_reg, 0x18212625);
 388         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 389         REG_WRITE(gen_data_reg, 0x545d0d0e);
 390         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 391         REG_WRITE(gen_data_reg, 0x1e1d2333);
 392         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 393         REG_WRITE(gen_data_reg, 0x26231a10);
 394         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 395         REG_WRITE(gen_data_reg, 0x1a222725);
 396         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 397         REG_WRITE(gen_data_reg, 0x545d280f);
 398         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 399         REG_WRITE(gen_data_reg, 0x21202635);
 400         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 401         REG_WRITE(gen_data_reg, 0x31292013);
 402         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 403         REG_WRITE(gen_data_reg, 0x31393d33);
 404         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 405         REG_WRITE(gen_data_reg, 0x00000029);
 406         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 407         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
 408
 409         /* Set DM */
 410         mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
 411         REG_WRITE(gen_data_reg, 0x000100f7);
 412         mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
 413         REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
 414 }
 415
 416 static u16 mdfld_dsi_dpi_to_byte_clock_count(int pixel_clock_count,
 417                                                 int num_lane, int bpp)
 418 {
 419         return (u16)((pixel_clock_count * bpp) / (num_lane * 8));
 420 }
 421
 422 /*
 423  * Calculate the dpi time basing on a given drm mode @mode
 424  * return 0 on success.
 425  * FIXME: I was using proposed mode value for calculation, may need to
 426  * use crtc mode values later
 427  */
 428 int mdfld_dsi_dpi_timing_calculation(struct drm_display_mode *mode,
 429                                 struct mdfld_dsi_dpi_timing *dpi_timing,
 430                                 int num_lane, int bpp)
 431 {
 432         int pclk_hsync, pclk_hfp, pclk_hbp, pclk_hactive;
 433         int pclk_vsync, pclk_vfp, pclk_vbp;
 434
 435         pclk_hactive = mode->hdisplay;
 436         pclk_hfp = mode->hsync_start - mode->hdisplay;
 437         pclk_hsync = mode->hsync_end - mode->hsync_start;
 438         pclk_hbp = mode->htotal - mode->hsync_end;
 439
 440         pclk_vfp = mode->vsync_start - mode->vdisplay;
 441         pclk_vsync = mode->vsync_end - mode->vsync_start;
 442         pclk_vbp = mode->vtotal - mode->vsync_end;
 443
 444         /*
 445          * byte clock counts were calculated by following formula
 446          * bclock_count = pclk_count * bpp / num_lane / 8
 447          */
 448         dpi_timing->hsync_count = mdfld_dsi_dpi_to_byte_clock_count(
 449                                                 pclk_hsync, num_lane, bpp);
 450         dpi_timing->hbp_count = mdfld_dsi_dpi_to_byte_clock_count(
 451                                                 pclk_hbp, num_lane, bpp);
 452         dpi_timing->hfp_count = mdfld_dsi_dpi_to_byte_clock_count(
 453                                                 pclk_hfp, num_lane, bpp);
 454         dpi_timing->hactive_count = mdfld_dsi_dpi_to_byte_clock_count(
 455                                                 pclk_hactive, num_lane, bpp);
 456         dpi_timing->vsync_count = mdfld_dsi_dpi_to_byte_clock_count(
 457                                                 pclk_vsync, num_lane, bpp);
 458         dpi_timing->vbp_count = mdfld_dsi_dpi_to_byte_clock_count(
 459                                                 pclk_vbp, num_lane, bpp);
 460         dpi_timing->vfp_count = mdfld_dsi_dpi_to_byte_clock_count(
 461                                                 pclk_vfp, num_lane, bpp);
 462
 463         return 0;
 464 }
 465
 466 void mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config *dsi_config,
 467                                                                 int pipe)
 468 {
 469         struct drm_device *dev = dsi_config->dev;
 470         int lane_count = dsi_config->lane_count;
 471         struct mdfld_dsi_dpi_timing dpi_timing;
 472         struct drm_display_mode *mode = dsi_config->mode;
 473         u32 val;
 474
 475         /*un-ready device*/
 476         REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 0, 0, 0);
 477
 478         /*init dsi adapter before kicking off*/
 479         REG_WRITE(MIPI_CTRL_REG(pipe), 0x00000018);
 480
 481         /*enable all interrupts*/
 482         REG_WRITE(MIPI_INTR_EN_REG(pipe), 0xffffffff);
 483
 484         /*set up func_prg*/
 485         val = lane_count;
 486         val |= dsi_config->channel_num << DSI_DPI_VIRT_CHANNEL_OFFSET;
 487
 488         switch (dsi_config->bpp) {
 489         case 16:
 490                 val |= DSI_DPI_COLOR_FORMAT_RGB565;
 491                 break;
 492         case 18:
 493                 val |= DSI_DPI_COLOR_FORMAT_RGB666;
 494                 break;
 495         case 24:
 496                 val |= DSI_DPI_COLOR_FORMAT_RGB888;
 497                 break;
 498         default:
 499                 DRM_ERROR("unsupported color format, bpp = %d\n",
 500                                                         dsi_config->bpp);
 501         }
 502         REG_WRITE(MIPI_DSI_FUNC_PRG_REG(pipe), val);
 503
 504         REG_WRITE(MIPI_HS_TX_TIMEOUT_REG(pipe),
 505                         (mode->vtotal * mode->htotal * dsi_config->bpp /
 506                                 (8 * lane_count)) & DSI_HS_TX_TIMEOUT_MASK);
 507         REG_WRITE(MIPI_LP_RX_TIMEOUT_REG(pipe),
 508                                 0xffff & DSI_LP_RX_TIMEOUT_MASK);
 509
 510         /*max value: 20 clock cycles of txclkesc*/
 511         REG_WRITE(MIPI_TURN_AROUND_TIMEOUT_REG(pipe),
 512                                 0x14 & DSI_TURN_AROUND_TIMEOUT_MASK);
 513
 514         /*min 21 txclkesc, max: ffffh*/
 515         REG_WRITE(MIPI_DEVICE_RESET_TIMER_REG(pipe),
 516                                 0xffff & DSI_RESET_TIMER_MASK);
 517
 518         REG_WRITE(MIPI_DPI_RESOLUTION_REG(pipe),
 519                                 mode->vdisplay << 16 | mode->hdisplay);
 520
 521         /*set DPI timing registers*/
 522         mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing,
 523                                 dsi_config->lane_count, dsi_config->bpp);
 524
 525         REG_WRITE(MIPI_HSYNC_COUNT_REG(pipe),
 526                         dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
 527         REG_WRITE(MIPI_HBP_COUNT_REG(pipe),
 528                         dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
 529         REG_WRITE(MIPI_HFP_COUNT_REG(pipe),
 530                         dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
 531         REG_WRITE(MIPI_HACTIVE_COUNT_REG(pipe),
 532                         dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
 533         REG_WRITE(MIPI_VSYNC_COUNT_REG(pipe),
 534                         dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
 535         REG_WRITE(MIPI_VBP_COUNT_REG(pipe),
 536                         dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
 537         REG_WRITE(MIPI_VFP_COUNT_REG(pipe),
 538                         dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
 539
 540         REG_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe), 0x46);
 541
 542         /*min: 7d0 max: 4e20*/
 543         REG_WRITE(MIPI_INIT_COUNT_REG(pipe), 0x000007d0);
 544
 545         /*set up video mode*/
 546         val = dsi_config->video_mode | DSI_DPI_COMPLETE_LAST_LINE;
 547         REG_WRITE(MIPI_VIDEO_MODE_FORMAT_REG(pipe), val);
 548
 549         REG_WRITE(MIPI_EOT_DISABLE_REG(pipe), 0x00000000);
 550
 551         REG_WRITE(MIPI_LP_BYTECLK_REG(pipe), 0x00000004);
 552
 553         /*TODO: figure out how to setup these registers*/
 554         if (mdfld_get_panel_type(dev, pipe) == TC35876X)
 555                 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x2A0c6008);
 556         else
 557                 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x150c3408);
 558
 559         REG_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe), (0xa << 16) | 0x14);
 560
 561         if (mdfld_get_panel_type(dev, pipe) == TC35876X)
 562                 tc35876x_set_bridge_reset_state(dev, 0);  /*Pull High Reset */
 563
 564         /*set device ready*/
 565         REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 1, 0, 0);
 566 }
 567
 568 void mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output *output, int pipe)
 569 {
 570         struct drm_device *dev = output->dev;
 571
 572         /* clear special packet sent bit */
 573         if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
 574                 REG_WRITE(MIPI_INTR_STAT_REG(pipe),
 575                                         DSI_INTR_STATE_SPL_PKG_SENT);
 576
 577         /*send turn on package*/
 578         REG_WRITE(MIPI_DPI_CONTROL_REG(pipe), DSI_DPI_CTRL_HS_TURN_ON);
 579
 580         /*wait for SPL_PKG_SENT interrupt*/
 581         mdfld_wait_for_SPL_PKG_SENT(dev, pipe);
 582
 583         if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
 584                 REG_WRITE(MIPI_INTR_STAT_REG(pipe),
 585                                         DSI_INTR_STATE_SPL_PKG_SENT);
 586
 587         output->panel_on = 1;
 588
 589         /* FIXME the following is disabled to WA the X slow start issue
 590            for TMD panel
 591         if (pipe == 2)
 592                 dev_priv->dpi_panel_on2 = true;
 593         else if (pipe == 0)
 594                 dev_priv->dpi_panel_on = true; */
 595 }
 596
 597 static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output,
 598                                                                 int pipe)
 599 {
 600         struct drm_device *dev = output->dev;
 601
 602         /*if output is on, or mode setting didn't happen, ignore this*/
 603         if ((!output->panel_on) || output->first_boot) {
 604                 output->first_boot = 0;
 605                 return;
 606         }
 607
 608         /* Wait for dpi fifo to empty */
 609         mdfld_wait_for_DPI_CTRL_FIFO(dev, pipe);
 610
 611         /* Clear the special packet interrupt bit if set */
 612         if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
 613                 REG_WRITE(MIPI_INTR_STAT_REG(pipe),
 614                                         DSI_INTR_STATE_SPL_PKG_SENT);
 615
 616         if (REG_READ(MIPI_DPI_CONTROL_REG(pipe)) == DSI_DPI_CTRL_HS_SHUTDOWN)
 617                 goto shutdown_out;
 618
 619         REG_WRITE(MIPI_DPI_CONTROL_REG(pipe), DSI_DPI_CTRL_HS_SHUTDOWN);
 620
 621 shutdown_out:
 622         output->panel_on = 0;
 623         output->first_boot = 0;
 624
 625         /* FIXME the following is disabled to WA the X slow start issue
 626            for TMD panel
 627         if (pipe == 2)
 628                 dev_priv->dpi_panel_on2 = false;
 629         else if (pipe == 0)
 630                 dev_priv->dpi_panel_on = false;  */
 631 }
 632
 633 static void mdfld_dsi_dpi_set_power(struct drm_encoder *encoder, bool on)
 634 {
 635         struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
 636         struct mdfld_dsi_dpi_output *dpi_output =
 637                                 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
 638         struct mdfld_dsi_config *dsi_config =
 639                                 mdfld_dsi_encoder_get_config(dsi_encoder);
 640         int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
 641         struct drm_device *dev = dsi_config->dev;
 642         struct drm_psb_private *dev_priv = dev->dev_private;
 643
 644         /*start up display island if it was shutdown*/
 645         if (!gma_power_begin(dev, true))
 646                 return;
 647
 648         if (on) {
 649                 if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
 650                         mdfld_dsi_dpi_turn_on(dpi_output, pipe);
 651                 else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
 652                         mdfld_dsi_configure_up(dsi_encoder, pipe);
 653                 else {
 654                         /*enable mipi port*/
 655                         REG_WRITE(MIPI_PORT_CONTROL(pipe),
 656                                 REG_READ(MIPI_PORT_CONTROL(pipe)) | BIT(31));
 657                         REG_READ(MIPI_PORT_CONTROL(pipe));
 658
 659                         mdfld_dsi_dpi_turn_on(dpi_output, pipe);
 660                         mdfld_dsi_tpo_ic_init(dsi_config, pipe);
 661                 }
 662                 dev_priv->dpi_panel_on[pipe] = true;
 663         } else {
 664                 if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
 665                         mdfld_dsi_dpi_shut_down(dpi_output, pipe);
 666                 else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
 667                         mdfld_dsi_configure_down(dsi_encoder, pipe);
 668                 else {
 669                         mdfld_dsi_dpi_shut_down(dpi_output, pipe);
 670
 671                         /*disable mipi port*/
 672                         REG_WRITE(MIPI_PORT_CONTROL(pipe),
 673                                 REG_READ(MIPI_PORT_CONTROL(pipe)) & ~BIT(31));
 674                         REG_READ(MIPI_PORT_CONTROL(pipe));
 675                 }
 676                 dev_priv->dpi_panel_on[pipe] = false;
 677         }
 678         gma_power_end(dev);
 679 }
 680
 681 void mdfld_dsi_dpi_dpms(struct drm_encoder *encoder, int mode)
 682 {
 683         mdfld_dsi_dpi_set_power(encoder, mode == DRM_MODE_DPMS_ON);
 684 }
 685
 686 bool mdfld_dsi_dpi_mode_fixup(struct drm_encoder *encoder,
 687                                      const struct drm_display_mode *mode,
 688                                      struct drm_display_mode *adjusted_mode)
 689 {
 690         struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
 691         struct mdfld_dsi_config *dsi_config =
 692                                 mdfld_dsi_encoder_get_config(dsi_encoder);
 693         struct drm_display_mode *fixed_mode = dsi_config->fixed_mode;
 694
 695         if (fixed_mode) {
 696                 adjusted_mode->hdisplay = fixed_mode->hdisplay;
 697                 adjusted_mode->hsync_start = fixed_mode->hsync_start;
 698                 adjusted_mode->hsync_end = fixed_mode->hsync_end;
 699                 adjusted_mode->htotal = fixed_mode->htotal;
 700                 adjusted_mode->vdisplay = fixed_mode->vdisplay;
 701                 adjusted_mode->vsync_start = fixed_mode->vsync_start;
 702                 adjusted_mode->vsync_end = fixed_mode->vsync_end;
 703                 adjusted_mode->vtotal = fixed_mode->vtotal;
 704                 adjusted_mode->clock = fixed_mode->clock;
 705                 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 706         }
 707         return true;
 708 }
 709
 710 void mdfld_dsi_dpi_prepare(struct drm_encoder *encoder)
 711 {
 712         mdfld_dsi_dpi_set_power(encoder, false);
 713 }
 714
 715 void mdfld_dsi_dpi_commit(struct drm_encoder *encoder)
 716 {
 717         mdfld_dsi_dpi_set_power(encoder, true);
 718 }
 719
 720 /* For TC35876X */
 721 /* This functionality was implemented in FW in iCDK */
 722 /* But removed in DV0 and later. So need to add here. */
 723 static void mipi_set_properties(struct mdfld_dsi_config *dsi_config, int pipe)
 724 {
 725         struct drm_device *dev = dsi_config->dev;
 726
 727         REG_WRITE(MIPI_CTRL_REG(pipe), 0x00000018);
 728         REG_WRITE(MIPI_INTR_EN_REG(pipe), 0xffffffff);
 729         REG_WRITE(MIPI_HS_TX_TIMEOUT_REG(pipe), 0xffffff);
 730         REG_WRITE(MIPI_LP_RX_TIMEOUT_REG(pipe), 0xffffff);
 731         REG_WRITE(MIPI_TURN_AROUND_TIMEOUT_REG(pipe), 0x14);
 732         REG_WRITE(MIPI_DEVICE_RESET_TIMER_REG(pipe), 0xff);
 733         REG_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe), 0x25);
 734         REG_WRITE(MIPI_INIT_COUNT_REG(pipe), 0xf0);
 735         REG_WRITE(MIPI_EOT_DISABLE_REG(pipe), 0x00000000);
 736         REG_WRITE(MIPI_LP_BYTECLK_REG(pipe), 0x00000004);
 737         REG_WRITE(MIPI_DBI_BW_CTRL_REG(pipe), 0x00000820);
 738         REG_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe), (0xa << 16) | 0x14);
 739 }
 740
 741 static void mdfld_mipi_set_video_timing(struct mdfld_dsi_config *dsi_config,
 742                                         int pipe)
 743 {
 744         struct drm_device *dev = dsi_config->dev;
 745         struct mdfld_dsi_dpi_timing dpi_timing;
 746         struct drm_display_mode *mode = dsi_config->mode;
 747
 748         mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing,
 749                                         dsi_config->lane_count,
 750                                         dsi_config->bpp);
 751
 752         REG_WRITE(MIPI_DPI_RESOLUTION_REG(pipe),
 753                 mode->vdisplay << 16 | mode->hdisplay);
 754         REG_WRITE(MIPI_HSYNC_COUNT_REG(pipe),
 755                 dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
 756         REG_WRITE(MIPI_HBP_COUNT_REG(pipe),
 757                 dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
 758         REG_WRITE(MIPI_HFP_COUNT_REG(pipe),
 759                 dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
 760         REG_WRITE(MIPI_HACTIVE_COUNT_REG(pipe),
 761                 dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
 762         REG_WRITE(MIPI_VSYNC_COUNT_REG(pipe),
 763                 dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
 764         REG_WRITE(MIPI_VBP_COUNT_REG(pipe),
 765                 dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
 766         REG_WRITE(MIPI_VFP_COUNT_REG(pipe),
 767                 dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
 768 }
 769
 770 static void mdfld_mipi_config(struct mdfld_dsi_config *dsi_config, int pipe)
 771 {
 772         struct drm_device *dev = dsi_config->dev;
 773         int lane_count = dsi_config->lane_count;
 774
 775         if (pipe) {
 776                 REG_WRITE(MIPI_PORT_CONTROL(0), 0x00000002);
 777                 REG_WRITE(MIPI_PORT_CONTROL(2), 0x80000000);
 778         } else {
 779                 REG_WRITE(MIPI_PORT_CONTROL(0), 0x80010000);
 780                 REG_WRITE(MIPI_PORT_CONTROL(2), 0x00);
 781         }
 782
 783         REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x150A600F);
 784         REG_WRITE(MIPI_VIDEO_MODE_FORMAT_REG(pipe), 0x0000000F);
 785
 786         /* lane_count = 3 */
 787         REG_WRITE(MIPI_DSI_FUNC_PRG_REG(pipe), 0x00000200 | lane_count);
 788
 789         mdfld_mipi_set_video_timing(dsi_config, pipe);
 790 }
 791
 792 static void mdfld_set_pipe_timing(struct mdfld_dsi_config *dsi_config, int pipe)
 793 {
 794         struct drm_device *dev = dsi_config->dev;
 795         struct drm_display_mode *mode = dsi_config->mode;
 796
 797         REG_WRITE(HTOTAL_A, ((mode->htotal - 1) << 16) | (mode->hdisplay - 1));
 798         REG_WRITE(HBLANK_A, ((mode->htotal - 1) << 16) | (mode->hdisplay - 1));
 799         REG_WRITE(HSYNC_A,
 800                 ((mode->hsync_end - 1) << 16) | (mode->hsync_start - 1));
 801
 802         REG_WRITE(VTOTAL_A, ((mode->vtotal - 1) << 16) | (mode->vdisplay - 1));
 803         REG_WRITE(VBLANK_A, ((mode->vtotal - 1) << 16) | (mode->vdisplay - 1));
 804         REG_WRITE(VSYNC_A,
 805                 ((mode->vsync_end - 1) << 16) | (mode->vsync_start - 1));
 806
 807         REG_WRITE(PIPEASRC,
 808                 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
 809 }
 810 /* End for TC35876X */
 811
 812 void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
 813                                    struct drm_display_mode *mode,
 814                                    struct drm_display_mode *adjusted_mode)
 815 {
 816         struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
 817         struct mdfld_dsi_dpi_output *dpi_output =
 818                                         MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
 819         struct mdfld_dsi_config *dsi_config =
 820                                 mdfld_dsi_encoder_get_config(dsi_encoder);
 821         struct drm_device *dev = dsi_config->dev;
 822         struct drm_psb_private *dev_priv = dev->dev_private;
 823         int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
 824
 825         u32 pipeconf_reg = PIPEACONF;
 826         u32 dspcntr_reg = DSPACNTR;
 827
 828         u32 pipeconf = dev_priv->pipeconf[pipe];
 829         u32 dspcntr = dev_priv->dspcntr[pipe];
 830         u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
 831
 832         if (pipe) {
 833                 pipeconf_reg = PIPECCONF;
 834                 dspcntr_reg = DSPCCNTR;
 835         } else {
 836                 if (mdfld_get_panel_type(dev, pipe) == TC35876X)
 837                         mipi &= (~0x03); /* Use all four lanes */
 838                 else
 839                         mipi |= 2;
 840         }
 841
 842         /*start up display island if it was shutdown*/
 843         if (!gma_power_begin(dev, true))
 844                 return;
 845
 846         if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
 847                 /*
 848                  * The following logic is required to reset the bridge and
 849                  * configure. This also starts the DSI clock at 200MHz.
 850                  */
 851                 tc35876x_set_bridge_reset_state(dev, 0);  /*Pull High Reset */
 852                 tc35876x_toshiba_bridge_panel_on(dev);
 853                 udelay(100);
 854                 /* Now start the DSI clock */
 855                 REG_WRITE(MRST_DPLL_A, 0x00);
 856                 REG_WRITE(MRST_FPA0, 0xC1);
 857                 REG_WRITE(MRST_DPLL_A, 0x00800000);
 858                 udelay(500);
 859                 REG_WRITE(MRST_DPLL_A, 0x80800000);
 860
 861                 if (REG_BIT_WAIT(pipeconf_reg, 1, 29))
 862                         dev_err(&dev->pdev->dev, "%s: DSI PLL lock timeout\n",
 863                                 __func__);
 864
 865                 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x2A0c6008);
 866
 867                 mipi_set_properties(dsi_config, pipe);
 868                 mdfld_mipi_config(dsi_config, pipe);
 869                 mdfld_set_pipe_timing(dsi_config, pipe);
 870
 871                 REG_WRITE(DSPABASE, 0x00);
 872                 REG_WRITE(DSPASIZE,
 873                         ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
 874
 875                 REG_WRITE(DSPACNTR, 0x98000000);
 876                 REG_WRITE(DSPASURF, 0x00);
 877
 878                 REG_WRITE(VGACNTRL, 0x80000000);
 879                 REG_WRITE(DEVICE_READY_REG, 0x00000001);
 880
 881                 REG_WRITE(MIPI_PORT_CONTROL(pipe), 0x80810000);
 882         } else {
 883                 /*set up mipi port FIXME: do at init time */
 884                 REG_WRITE(MIPI_PORT_CONTROL(pipe), mipi);
 885         }
 886         REG_READ(MIPI_PORT_CONTROL(pipe));
 887
 888         if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
 889                 /* NOP */
 890         } else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
 891                 /* set up DSI controller DPI interface */
 892                 mdfld_dsi_dpi_controller_init(dsi_config, pipe);
 893
 894                 /* Configure MIPI Bridge and Panel */
 895                 tc35876x_configure_lvds_bridge(dev);
 896                 dev_priv->dpi_panel_on[pipe] = true;
 897         } else {
 898                 /*turn on DPI interface*/
 899                 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
 900         }
 901
 902         /*set up pipe*/
 903         REG_WRITE(pipeconf_reg, pipeconf);
 904         REG_READ(pipeconf_reg);
 905
 906         /*set up display plane*/
 907         REG_WRITE(dspcntr_reg, dspcntr);
 908         REG_READ(dspcntr_reg);
 909
 910         msleep(20); /* FIXME: this should wait for vblank */
 911
 912         if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
 913                 /* NOP */
 914         } else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
 915                 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
 916         } else {
 917                 /* init driver ic */
 918                 mdfld_dsi_tpo_ic_init(dsi_config, pipe);
 919                 /*init backlight*/
 920                 mdfld_dsi_brightness_init(dsi_config, pipe);
 921         }
 922
 923         gma_power_end(dev);
 924 }
 925
 926 /*
 927  * Init DSI DPI encoder.
 928  * Allocate an mdfld_dsi_encoder and attach it to given @dsi_connector
 929  * return pointer of newly allocated DPI encoder, NULL on error
 930  */
 931 struct mdfld_dsi_encoder *mdfld_dsi_dpi_init(struct drm_device *dev,
 932                                 struct mdfld_dsi_connector *dsi_connector,
 933                                 const struct panel_funcs *p_funcs)
 934 {
 935         struct mdfld_dsi_dpi_output *dpi_output = NULL;
 936         struct mdfld_dsi_config *dsi_config;
 937         struct drm_connector *connector = NULL;
 938         struct drm_encoder *encoder = NULL;
 939         int pipe;
 940         u32 data;
 941         int ret;
 942
 943         pipe = dsi_connector->pipe;
 944
 945         if (mdfld_get_panel_type(dev, pipe) != TC35876X) {
 946                 dsi_config = mdfld_dsi_get_config(dsi_connector);
 947
 948                 /* panel hard-reset */
 949                 if (p_funcs->reset) {
 950                         ret = p_funcs->reset(pipe);
 951                         if (ret) {
 952                                 DRM_ERROR("Panel %d hard-reset failed\n", pipe);
 953                                 return NULL;
 954                         }
 955                 }
 956
 957                 /* panel drvIC init */
 958                 if (p_funcs->drv_ic_init)
 959                         p_funcs->drv_ic_init(dsi_config, pipe);
 960
 961                 /* panel power mode detect */
 962                 ret = mdfld_dsi_get_power_mode(dsi_config, &data, false);
 963                 if (ret) {
 964                         DRM_ERROR("Panel %d get power mode failed\n", pipe);
 965                         dsi_connector->status = connector_status_disconnected;
 966                 } else {
 967                         DRM_INFO("pipe %d power mode 0x%x\n", pipe, data);
 968                         dsi_connector->status = connector_status_connected;
 969                 }
 970         }
 971
 972         dpi_output = kzalloc(sizeof(struct mdfld_dsi_dpi_output), GFP_KERNEL);
 973         if (!dpi_output) {
 974                 DRM_ERROR("No memory\n");
 975                 return NULL;
 976         }
 977
 978         if (dsi_connector->pipe)
 979                 dpi_output->panel_on = 0;
 980         else
 981                 dpi_output->panel_on = 0;
 982
 983         dpi_output->dev = dev;
 984         if (mdfld_get_panel_type(dev, pipe) != TC35876X)
 985                 dpi_output->p_funcs = p_funcs;
 986         dpi_output->first_boot = 1;
 987
 988         /*get fixed mode*/
 989         dsi_config = mdfld_dsi_get_config(dsi_connector);
 990
 991         /*create drm encoder object*/
 992         connector = &dsi_connector->base.base;
 993         encoder = &dpi_output->base.base.base;
 994         drm_encoder_init(dev,
 995                         encoder,
 996                         p_funcs->encoder_funcs,
 997                         DRM_MODE_ENCODER_LVDS);
 998         drm_encoder_helper_add(encoder,
 999                                 p_funcs->encoder_helper_funcs);
1000
1001         /*attach to given connector*/
1002         drm_mode_connector_attach_encoder(connector, encoder);
1003
1004         /*set possible crtcs and clones*/
1005         if (dsi_connector->pipe) {
1006                 encoder->possible_crtcs = (1 << 2);
1007                 encoder->possible_clones = (1 << 1);
1008         } else {
1009                 encoder->possible_crtcs = (1 << 0);
1010                 encoder->possible_clones = (1 << 0);
1011         }
1012
1013         dsi_connector->base.encoder = &dpi_output->base.base;
1014
1015         return &dpi_output->base;
1016 }