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
mdfld_wait_for_HS_DATA_FIFO(struct drm_device * dev,u32 pipe)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
mdfld_wait_for_HS_CTRL_FIFO(struct drm_device * dev,u32 pipe)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
mdfld_wait_for_DPI_CTRL_FIFO(struct drm_device * dev,u32 pipe)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
mdfld_wait_for_SPL_PKG_SENT(struct drm_device * dev,u32 pipe)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
dsi_set_device_ready_state(struct drm_device * dev,int state,int pipe)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
dsi_set_pipe_plane_enable_state(struct drm_device * dev,int state,int pipe)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
mdfld_dsi_configure_down(struct mdfld_dsi_encoder * dsi_encoder,int pipe)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
mdfld_dsi_configure_up(struct mdfld_dsi_encoder * dsi_encoder,int pipe)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 \* ************************************************************************* */
mdfld_dsi_tpo_ic_init(struct mdfld_dsi_config * dsi_config,u32 pipe)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
mdfld_dsi_dpi_to_byte_clock_count(int pixel_clock_count,int num_lane,int bpp)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 */
mdfld_dsi_dpi_timing_calculation(struct drm_display_mode * mode,struct mdfld_dsi_dpi_timing * dpi_timing,int num_lane,int bpp)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
mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config * dsi_config,int pipe)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
mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output * output,int pipe)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
mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output * output,int pipe)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
mdfld_dsi_dpi_set_power(struct drm_encoder * encoder,bool on)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
mdfld_dsi_dpi_dpms(struct drm_encoder * encoder,int mode)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
mdfld_dsi_dpi_mode_fixup(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)686 bool mdfld_dsi_dpi_mode_fixup(struct drm_encoder *encoder,
687 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
mdfld_dsi_dpi_prepare(struct drm_encoder * encoder)710 void mdfld_dsi_dpi_prepare(struct drm_encoder *encoder)
711 {
712 mdfld_dsi_dpi_set_power(encoder, false);
713 }
714
mdfld_dsi_dpi_commit(struct drm_encoder * encoder)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. */
mipi_set_properties(struct mdfld_dsi_config * dsi_config,int pipe)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
mdfld_mipi_set_video_timing(struct mdfld_dsi_config * dsi_config,int pipe)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
mdfld_mipi_config(struct mdfld_dsi_config * dsi_config,int pipe)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
mdfld_set_pipe_timing(struct mdfld_dsi_config * dsi_config,int pipe)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
mdfld_dsi_dpi_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)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(DSPASTRIDE, (mode->hdisplay * 4));
873 REG_WRITE(DSPASIZE,
874 ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
875
876 REG_WRITE(DSPACNTR, 0x98000000);
877 REG_WRITE(DSPASURF, 0x00);
878
879 REG_WRITE(VGACNTRL, 0x80000000);
880 REG_WRITE(DEVICE_READY_REG, 0x00000001);
881
882 REG_WRITE(MIPI_PORT_CONTROL(pipe), 0x80810000);
883 } else {
884 /*set up mipi port FIXME: do at init time */
885 REG_WRITE(MIPI_PORT_CONTROL(pipe), mipi);
886 }
887 REG_READ(MIPI_PORT_CONTROL(pipe));
888
889 if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
890 /* NOP */
891 } else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
892 /* set up DSI controller DPI interface */
893 mdfld_dsi_dpi_controller_init(dsi_config, pipe);
894
895 /* Configure MIPI Bridge and Panel */
896 tc35876x_configure_lvds_bridge(dev);
897 dev_priv->dpi_panel_on[pipe] = true;
898 } else {
899 /*turn on DPI interface*/
900 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
901 }
902
903 /*set up pipe*/
904 REG_WRITE(pipeconf_reg, pipeconf);
905 REG_READ(pipeconf_reg);
906
907 /*set up display plane*/
908 REG_WRITE(dspcntr_reg, dspcntr);
909 REG_READ(dspcntr_reg);
910
911 msleep(20); /* FIXME: this should wait for vblank */
912
913 if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
914 /* NOP */
915 } else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
916 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
917 } else {
918 /* init driver ic */
919 mdfld_dsi_tpo_ic_init(dsi_config, pipe);
920 /*init backlight*/
921 mdfld_dsi_brightness_init(dsi_config, pipe);
922 }
923
924 gma_power_end(dev);
925 }
926
927 /*
928 * Init DSI DPI encoder.
929 * Allocate an mdfld_dsi_encoder and attach it to given @dsi_connector
930 * return pointer of newly allocated DPI encoder, NULL on error
931 */
mdfld_dsi_dpi_init(struct drm_device * dev,struct mdfld_dsi_connector * dsi_connector,const struct panel_funcs * p_funcs)932 struct mdfld_dsi_encoder *mdfld_dsi_dpi_init(struct drm_device *dev,
933 struct mdfld_dsi_connector *dsi_connector,
934 const struct panel_funcs *p_funcs)
935 {
936 struct mdfld_dsi_dpi_output *dpi_output = NULL;
937 struct mdfld_dsi_config *dsi_config;
938 struct drm_connector *connector = NULL;
939 struct drm_encoder *encoder = NULL;
940 int pipe;
941 u32 data;
942 int ret;
943
944 pipe = dsi_connector->pipe;
945
946 if (mdfld_get_panel_type(dev, pipe) != TC35876X) {
947 dsi_config = mdfld_dsi_get_config(dsi_connector);
948
949 /* panel hard-reset */
950 if (p_funcs->reset) {
951 ret = p_funcs->reset(pipe);
952 if (ret) {
953 DRM_ERROR("Panel %d hard-reset failed\n", pipe);
954 return NULL;
955 }
956 }
957
958 /* panel drvIC init */
959 if (p_funcs->drv_ic_init)
960 p_funcs->drv_ic_init(dsi_config, pipe);
961
962 /* panel power mode detect */
963 ret = mdfld_dsi_get_power_mode(dsi_config, &data, false);
964 if (ret) {
965 DRM_ERROR("Panel %d get power mode failed\n", pipe);
966 dsi_connector->status = connector_status_disconnected;
967 } else {
968 DRM_INFO("pipe %d power mode 0x%x\n", pipe, data);
969 dsi_connector->status = connector_status_connected;
970 }
971 }
972
973 dpi_output = kzalloc(sizeof(struct mdfld_dsi_dpi_output), GFP_KERNEL);
974 if (!dpi_output) {
975 DRM_ERROR("No memory\n");
976 return NULL;
977 }
978
979 if (dsi_connector->pipe)
980 dpi_output->panel_on = 0;
981 else
982 dpi_output->panel_on = 0;
983
984 dpi_output->dev = dev;
985 if (mdfld_get_panel_type(dev, pipe) != TC35876X)
986 dpi_output->p_funcs = p_funcs;
987 dpi_output->first_boot = 1;
988
989 /*get fixed mode*/
990 dsi_config = mdfld_dsi_get_config(dsi_connector);
991
992 /*create drm encoder object*/
993 connector = &dsi_connector->base.base;
994 encoder = &dpi_output->base.base.base;
995 drm_encoder_init(dev,
996 encoder,
997 p_funcs->encoder_funcs,
998 DRM_MODE_ENCODER_LVDS);
999 drm_encoder_helper_add(encoder,
1000 p_funcs->encoder_helper_funcs);
1001
1002 /*attach to given connector*/
1003 drm_mode_connector_attach_encoder(connector, encoder);
1004
1005 /*set possible crtcs and clones*/
1006 if (dsi_connector->pipe) {
1007 encoder->possible_crtcs = (1 << 2);
1008 encoder->possible_clones = (1 << 1);
1009 } else {
1010 encoder->possible_crtcs = (1 << 0);
1011 encoder->possible_clones = (1 << 0);
1012 }
1013
1014 dsi_connector->base.encoder = &dpi_output->base.base;
1015
1016 return &dpi_output->base;
1017 }
1018