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 <linux/delay.h>
29
30 #include <drm/drm_simple_kms_helper.h>
31
32 #include "mdfld_dsi_dpi.h"
33 #include "mdfld_dsi_pkg_sender.h"
34 #include "mdfld_output.h"
35 #include "psb_drv.h"
36 #include "tc35876x-dsi-lvds.h"
37
38 static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output,
39 int pipe);
40
mdfld_wait_for_HS_DATA_FIFO(struct drm_device * dev,u32 pipe)41 static void mdfld_wait_for_HS_DATA_FIFO(struct drm_device *dev, u32 pipe)
42 {
43 u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
44 int timeout = 0;
45
46 udelay(500);
47
48 /* This will time out after approximately 2+ seconds */
49 while ((timeout < 20000) &&
50 (REG_READ(gen_fifo_stat_reg) & DSI_FIFO_GEN_HS_DATA_FULL)) {
51 udelay(100);
52 timeout++;
53 }
54
55 if (timeout == 20000)
56 DRM_INFO("MIPI: HS Data FIFO was never cleared!\n");
57 }
58
mdfld_wait_for_HS_CTRL_FIFO(struct drm_device * dev,u32 pipe)59 static void mdfld_wait_for_HS_CTRL_FIFO(struct drm_device *dev, u32 pipe)
60 {
61 u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
62 int timeout = 0;
63
64 udelay(500);
65
66 /* This will time out after approximately 2+ seconds */
67 while ((timeout < 20000) && (REG_READ(gen_fifo_stat_reg)
68 & DSI_FIFO_GEN_HS_CTRL_FULL)) {
69 udelay(100);
70 timeout++;
71 }
72 if (timeout == 20000)
73 DRM_INFO("MIPI: HS CMD FIFO was never cleared!\n");
74 }
75
mdfld_wait_for_DPI_CTRL_FIFO(struct drm_device * dev,u32 pipe)76 static void mdfld_wait_for_DPI_CTRL_FIFO(struct drm_device *dev, u32 pipe)
77 {
78 u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
79 int timeout = 0;
80
81 udelay(500);
82
83 /* This will time out after approximately 2+ seconds */
84 while ((timeout < 20000) && ((REG_READ(gen_fifo_stat_reg) &
85 DPI_FIFO_EMPTY) != DPI_FIFO_EMPTY)) {
86 udelay(100);
87 timeout++;
88 }
89
90 if (timeout == 20000)
91 DRM_ERROR("MIPI: DPI FIFO was never cleared\n");
92 }
93
mdfld_wait_for_SPL_PKG_SENT(struct drm_device * dev,u32 pipe)94 static void mdfld_wait_for_SPL_PKG_SENT(struct drm_device *dev, u32 pipe)
95 {
96 u32 intr_stat_reg = MIPI_INTR_STAT_REG(pipe);
97 int timeout = 0;
98
99 udelay(500);
100
101 /* This will time out after approximately 2+ seconds */
102 while ((timeout < 20000) && (!(REG_READ(intr_stat_reg)
103 & DSI_INTR_STATE_SPL_PKG_SENT))) {
104 udelay(100);
105 timeout++;
106 }
107
108 if (timeout == 20000)
109 DRM_ERROR("MIPI: SPL_PKT_SENT_INTERRUPT was not sent successfully!\n");
110 }
111
112 /* For TC35876X */
113
dsi_set_device_ready_state(struct drm_device * dev,int state,int pipe)114 static void dsi_set_device_ready_state(struct drm_device *dev, int state,
115 int pipe)
116 {
117 REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), !!state, 0, 0);
118 }
119
dsi_set_pipe_plane_enable_state(struct drm_device * dev,int state,int pipe)120 static void dsi_set_pipe_plane_enable_state(struct drm_device *dev,
121 int state, int pipe)
122 {
123 struct drm_psb_private *dev_priv = dev->dev_private;
124 u32 pipeconf_reg = PIPEACONF;
125 u32 dspcntr_reg = DSPACNTR;
126
127 u32 dspcntr = dev_priv->dspcntr[pipe];
128 u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
129
130 if (pipe) {
131 pipeconf_reg = PIPECCONF;
132 dspcntr_reg = DSPCCNTR;
133 } else
134 mipi &= (~0x03);
135
136 if (state) {
137 /*Set up pipe */
138 REG_WRITE(pipeconf_reg, BIT(31));
139
140 if (REG_BIT_WAIT(pipeconf_reg, 1, 30))
141 dev_err(&dev->pdev->dev, "%s: Pipe enable timeout\n",
142 __func__);
143
144 /*Set up display plane */
145 REG_WRITE(dspcntr_reg, dspcntr);
146 } else {
147 u32 dspbase_reg = pipe ? MDFLD_DSPCBASE : MRST_DSPABASE;
148
149 /* Put DSI lanes to ULPS to disable pipe */
150 REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 2, 2, 1);
151 REG_READ(MIPI_DEVICE_READY_REG(pipe)); /* posted write? */
152
153 /* LP Hold */
154 REG_FLD_MOD(MIPI_PORT_CONTROL(pipe), 0, 16, 16);
155 REG_READ(MIPI_PORT_CONTROL(pipe)); /* posted write? */
156
157 /* Disable display plane */
158 REG_FLD_MOD(dspcntr_reg, 0, 31, 31);
159
160 /* Flush the plane changes ??? posted write? */
161 REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
162 REG_READ(dspbase_reg);
163
164 /* Disable PIPE */
165 REG_FLD_MOD(pipeconf_reg, 0, 31, 31);
166
167 if (REG_BIT_WAIT(pipeconf_reg, 0, 30))
168 dev_err(&dev->pdev->dev, "%s: Pipe disable timeout\n",
169 __func__);
170
171 if (REG_BIT_WAIT(MIPI_GEN_FIFO_STAT_REG(pipe), 1, 28))
172 dev_err(&dev->pdev->dev, "%s: FIFO not empty\n",
173 __func__);
174 }
175 }
176
mdfld_dsi_configure_down(struct mdfld_dsi_encoder * dsi_encoder,int pipe)177 static void mdfld_dsi_configure_down(struct mdfld_dsi_encoder *dsi_encoder,
178 int pipe)
179 {
180 struct mdfld_dsi_dpi_output *dpi_output =
181 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
182 struct mdfld_dsi_config *dsi_config =
183 mdfld_dsi_encoder_get_config(dsi_encoder);
184 struct drm_device *dev = dsi_config->dev;
185 struct drm_psb_private *dev_priv = dev->dev_private;
186
187 if (!dev_priv->dpi_panel_on[pipe]) {
188 dev_err(dev->dev, "DPI panel is already off\n");
189 return;
190 }
191 tc35876x_toshiba_bridge_panel_off(dev);
192 tc35876x_set_bridge_reset_state(dev, 1);
193 dsi_set_pipe_plane_enable_state(dev, 0, pipe);
194 mdfld_dsi_dpi_shut_down(dpi_output, pipe);
195 dsi_set_device_ready_state(dev, 0, pipe);
196 }
197
mdfld_dsi_configure_up(struct mdfld_dsi_encoder * dsi_encoder,int pipe)198 static void mdfld_dsi_configure_up(struct mdfld_dsi_encoder *dsi_encoder,
199 int pipe)
200 {
201 struct mdfld_dsi_dpi_output *dpi_output =
202 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
203 struct mdfld_dsi_config *dsi_config =
204 mdfld_dsi_encoder_get_config(dsi_encoder);
205 struct drm_device *dev = dsi_config->dev;
206 struct drm_psb_private *dev_priv = dev->dev_private;
207
208 if (dev_priv->dpi_panel_on[pipe]) {
209 dev_err(dev->dev, "DPI panel is already on\n");
210 return;
211 }
212
213 /* For resume path sequence */
214 mdfld_dsi_dpi_shut_down(dpi_output, pipe);
215 dsi_set_device_ready_state(dev, 0, pipe);
216
217 dsi_set_device_ready_state(dev, 1, pipe);
218 tc35876x_set_bridge_reset_state(dev, 0);
219 tc35876x_configure_lvds_bridge(dev);
220 mdfld_dsi_dpi_turn_on(dpi_output, pipe); /* Send turn on command */
221 dsi_set_pipe_plane_enable_state(dev, 1, pipe);
222 }
223 /* End for TC35876X */
224
225 /* ************************************************************************* *\
226 * FUNCTION: mdfld_dsi_tpo_ic_init
227 *
228 * DESCRIPTION: This function is called only by mrst_dsi_mode_set and
229 * restore_display_registers. since this function does not
230 * acquire the mutex, it is important that the calling function
231 * does!
232 \* ************************************************************************* */
mdfld_dsi_tpo_ic_init(struct mdfld_dsi_config * dsi_config,u32 pipe)233 static void mdfld_dsi_tpo_ic_init(struct mdfld_dsi_config *dsi_config, u32 pipe)
234 {
235 struct drm_device *dev = dsi_config->dev;
236 u32 dcsChannelNumber = dsi_config->channel_num;
237 u32 gen_data_reg = MIPI_HS_GEN_DATA_REG(pipe);
238 u32 gen_ctrl_reg = MIPI_HS_GEN_CTRL_REG(pipe);
239 u32 gen_ctrl_val = GEN_LONG_WRITE;
240
241 DRM_INFO("Enter mrst init TPO MIPI display.\n");
242
243 gen_ctrl_val |= dcsChannelNumber << DCS_CHANNEL_NUMBER_POS;
244
245 /* Flip page order */
246 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
247 REG_WRITE(gen_data_reg, 0x00008036);
248 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
249 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
250
251 /* 0xF0 */
252 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
253 REG_WRITE(gen_data_reg, 0x005a5af0);
254 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
255 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
256
257 /* Write protection key */
258 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
259 REG_WRITE(gen_data_reg, 0x005a5af1);
260 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
261 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
262
263 /* 0xFC */
264 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
265 REG_WRITE(gen_data_reg, 0x005a5afc);
266 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
267 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
268
269 /* 0xB7 */
270 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
271 REG_WRITE(gen_data_reg, 0x770000b7);
272 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
273 REG_WRITE(gen_data_reg, 0x00000044);
274 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
275 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x05 << WORD_COUNTS_POS));
276
277 /* 0xB6 */
278 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
279 REG_WRITE(gen_data_reg, 0x000a0ab6);
280 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
281 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
282
283 /* 0xF2 */
284 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
285 REG_WRITE(gen_data_reg, 0x081010f2);
286 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
287 REG_WRITE(gen_data_reg, 0x4a070708);
288 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
289 REG_WRITE(gen_data_reg, 0x000000c5);
290 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
291 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
292
293 /* 0xF8 */
294 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
295 REG_WRITE(gen_data_reg, 0x024003f8);
296 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
297 REG_WRITE(gen_data_reg, 0x01030a04);
298 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
299 REG_WRITE(gen_data_reg, 0x0e020220);
300 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
301 REG_WRITE(gen_data_reg, 0x00000004);
302 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
303 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x0d << WORD_COUNTS_POS));
304
305 /* 0xE2 */
306 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
307 REG_WRITE(gen_data_reg, 0x398fc3e2);
308 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
309 REG_WRITE(gen_data_reg, 0x0000916f);
310 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
311 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x06 << WORD_COUNTS_POS));
312
313 /* 0xB0 */
314 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
315 REG_WRITE(gen_data_reg, 0x000000b0);
316 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
317 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
318
319 /* 0xF4 */
320 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
321 REG_WRITE(gen_data_reg, 0x240242f4);
322 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
323 REG_WRITE(gen_data_reg, 0x78ee2002);
324 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
325 REG_WRITE(gen_data_reg, 0x2a071050);
326 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
327 REG_WRITE(gen_data_reg, 0x507fee10);
328 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
329 REG_WRITE(gen_data_reg, 0x10300710);
330 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
331 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x14 << WORD_COUNTS_POS));
332
333 /* 0xBA */
334 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
335 REG_WRITE(gen_data_reg, 0x19fe07ba);
336 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
337 REG_WRITE(gen_data_reg, 0x101c0a31);
338 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
339 REG_WRITE(gen_data_reg, 0x00000010);
340 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
341 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
342
343 /* 0xBB */
344 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
345 REG_WRITE(gen_data_reg, 0x28ff07bb);
346 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
347 REG_WRITE(gen_data_reg, 0x24280a31);
348 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
349 REG_WRITE(gen_data_reg, 0x00000034);
350 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
351 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
352
353 /* 0xFB */
354 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
355 REG_WRITE(gen_data_reg, 0x535d05fb);
356 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
357 REG_WRITE(gen_data_reg, 0x1b1a2130);
358 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
359 REG_WRITE(gen_data_reg, 0x221e180e);
360 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
361 REG_WRITE(gen_data_reg, 0x131d2120);
362 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
363 REG_WRITE(gen_data_reg, 0x535d0508);
364 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
365 REG_WRITE(gen_data_reg, 0x1c1a2131);
366 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
367 REG_WRITE(gen_data_reg, 0x231f160d);
368 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
369 REG_WRITE(gen_data_reg, 0x111b2220);
370 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
371 REG_WRITE(gen_data_reg, 0x535c2008);
372 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
373 REG_WRITE(gen_data_reg, 0x1f1d2433);
374 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
375 REG_WRITE(gen_data_reg, 0x2c251a10);
376 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
377 REG_WRITE(gen_data_reg, 0x2c34372d);
378 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
379 REG_WRITE(gen_data_reg, 0x00000023);
380 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
381 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
382
383 /* 0xFA */
384 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
385 REG_WRITE(gen_data_reg, 0x525c0bfa);
386 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
387 REG_WRITE(gen_data_reg, 0x1c1c232f);
388 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
389 REG_WRITE(gen_data_reg, 0x2623190e);
390 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
391 REG_WRITE(gen_data_reg, 0x18212625);
392 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
393 REG_WRITE(gen_data_reg, 0x545d0d0e);
394 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
395 REG_WRITE(gen_data_reg, 0x1e1d2333);
396 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
397 REG_WRITE(gen_data_reg, 0x26231a10);
398 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
399 REG_WRITE(gen_data_reg, 0x1a222725);
400 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
401 REG_WRITE(gen_data_reg, 0x545d280f);
402 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
403 REG_WRITE(gen_data_reg, 0x21202635);
404 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
405 REG_WRITE(gen_data_reg, 0x31292013);
406 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
407 REG_WRITE(gen_data_reg, 0x31393d33);
408 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
409 REG_WRITE(gen_data_reg, 0x00000029);
410 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
411 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
412
413 /* Set DM */
414 mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
415 REG_WRITE(gen_data_reg, 0x000100f7);
416 mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
417 REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
418 }
419
mdfld_dsi_dpi_to_byte_clock_count(int pixel_clock_count,int num_lane,int bpp)420 static u16 mdfld_dsi_dpi_to_byte_clock_count(int pixel_clock_count,
421 int num_lane, int bpp)
422 {
423 return (u16)((pixel_clock_count * bpp) / (num_lane * 8));
424 }
425
426 /*
427 * Calculate the dpi time basing on a given drm mode @mode
428 * return 0 on success.
429 * FIXME: I was using proposed mode value for calculation, may need to
430 * use crtc mode values later
431 */
mdfld_dsi_dpi_timing_calculation(struct drm_display_mode * mode,struct mdfld_dsi_dpi_timing * dpi_timing,int num_lane,int bpp)432 int mdfld_dsi_dpi_timing_calculation(struct drm_display_mode *mode,
433 struct mdfld_dsi_dpi_timing *dpi_timing,
434 int num_lane, int bpp)
435 {
436 int pclk_hsync, pclk_hfp, pclk_hbp, pclk_hactive;
437 int pclk_vsync, pclk_vfp, pclk_vbp;
438
439 pclk_hactive = mode->hdisplay;
440 pclk_hfp = mode->hsync_start - mode->hdisplay;
441 pclk_hsync = mode->hsync_end - mode->hsync_start;
442 pclk_hbp = mode->htotal - mode->hsync_end;
443
444 pclk_vfp = mode->vsync_start - mode->vdisplay;
445 pclk_vsync = mode->vsync_end - mode->vsync_start;
446 pclk_vbp = mode->vtotal - mode->vsync_end;
447
448 /*
449 * byte clock counts were calculated by following formula
450 * bclock_count = pclk_count * bpp / num_lane / 8
451 */
452 dpi_timing->hsync_count = mdfld_dsi_dpi_to_byte_clock_count(
453 pclk_hsync, num_lane, bpp);
454 dpi_timing->hbp_count = mdfld_dsi_dpi_to_byte_clock_count(
455 pclk_hbp, num_lane, bpp);
456 dpi_timing->hfp_count = mdfld_dsi_dpi_to_byte_clock_count(
457 pclk_hfp, num_lane, bpp);
458 dpi_timing->hactive_count = mdfld_dsi_dpi_to_byte_clock_count(
459 pclk_hactive, num_lane, bpp);
460 dpi_timing->vsync_count = mdfld_dsi_dpi_to_byte_clock_count(
461 pclk_vsync, num_lane, bpp);
462 dpi_timing->vbp_count = mdfld_dsi_dpi_to_byte_clock_count(
463 pclk_vbp, num_lane, bpp);
464 dpi_timing->vfp_count = mdfld_dsi_dpi_to_byte_clock_count(
465 pclk_vfp, num_lane, bpp);
466
467 return 0;
468 }
469
mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config * dsi_config,int pipe)470 void mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config *dsi_config,
471 int pipe)
472 {
473 struct drm_device *dev = dsi_config->dev;
474 int lane_count = dsi_config->lane_count;
475 struct mdfld_dsi_dpi_timing dpi_timing;
476 struct drm_display_mode *mode = dsi_config->mode;
477 u32 val;
478
479 /*un-ready device*/
480 REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 0, 0, 0);
481
482 /*init dsi adapter before kicking off*/
483 REG_WRITE(MIPI_CTRL_REG(pipe), 0x00000018);
484
485 /*enable all interrupts*/
486 REG_WRITE(MIPI_INTR_EN_REG(pipe), 0xffffffff);
487
488 /*set up func_prg*/
489 val = lane_count;
490 val |= dsi_config->channel_num << DSI_DPI_VIRT_CHANNEL_OFFSET;
491
492 switch (dsi_config->bpp) {
493 case 16:
494 val |= DSI_DPI_COLOR_FORMAT_RGB565;
495 break;
496 case 18:
497 val |= DSI_DPI_COLOR_FORMAT_RGB666;
498 break;
499 case 24:
500 val |= DSI_DPI_COLOR_FORMAT_RGB888;
501 break;
502 default:
503 DRM_ERROR("unsupported color format, bpp = %d\n",
504 dsi_config->bpp);
505 }
506 REG_WRITE(MIPI_DSI_FUNC_PRG_REG(pipe), val);
507
508 REG_WRITE(MIPI_HS_TX_TIMEOUT_REG(pipe),
509 (mode->vtotal * mode->htotal * dsi_config->bpp /
510 (8 * lane_count)) & DSI_HS_TX_TIMEOUT_MASK);
511 REG_WRITE(MIPI_LP_RX_TIMEOUT_REG(pipe),
512 0xffff & DSI_LP_RX_TIMEOUT_MASK);
513
514 /*max value: 20 clock cycles of txclkesc*/
515 REG_WRITE(MIPI_TURN_AROUND_TIMEOUT_REG(pipe),
516 0x14 & DSI_TURN_AROUND_TIMEOUT_MASK);
517
518 /*min 21 txclkesc, max: ffffh*/
519 REG_WRITE(MIPI_DEVICE_RESET_TIMER_REG(pipe),
520 0xffff & DSI_RESET_TIMER_MASK);
521
522 REG_WRITE(MIPI_DPI_RESOLUTION_REG(pipe),
523 mode->vdisplay << 16 | mode->hdisplay);
524
525 /*set DPI timing registers*/
526 mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing,
527 dsi_config->lane_count, dsi_config->bpp);
528
529 REG_WRITE(MIPI_HSYNC_COUNT_REG(pipe),
530 dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
531 REG_WRITE(MIPI_HBP_COUNT_REG(pipe),
532 dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
533 REG_WRITE(MIPI_HFP_COUNT_REG(pipe),
534 dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
535 REG_WRITE(MIPI_HACTIVE_COUNT_REG(pipe),
536 dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
537 REG_WRITE(MIPI_VSYNC_COUNT_REG(pipe),
538 dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
539 REG_WRITE(MIPI_VBP_COUNT_REG(pipe),
540 dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
541 REG_WRITE(MIPI_VFP_COUNT_REG(pipe),
542 dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
543
544 REG_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe), 0x46);
545
546 /*min: 7d0 max: 4e20*/
547 REG_WRITE(MIPI_INIT_COUNT_REG(pipe), 0x000007d0);
548
549 /*set up video mode*/
550 val = dsi_config->video_mode | DSI_DPI_COMPLETE_LAST_LINE;
551 REG_WRITE(MIPI_VIDEO_MODE_FORMAT_REG(pipe), val);
552
553 REG_WRITE(MIPI_EOT_DISABLE_REG(pipe), 0x00000000);
554
555 REG_WRITE(MIPI_LP_BYTECLK_REG(pipe), 0x00000004);
556
557 /*TODO: figure out how to setup these registers*/
558 if (mdfld_get_panel_type(dev, pipe) == TC35876X)
559 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x2A0c6008);
560 else
561 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x150c3408);
562
563 REG_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe), (0xa << 16) | 0x14);
564
565 if (mdfld_get_panel_type(dev, pipe) == TC35876X)
566 tc35876x_set_bridge_reset_state(dev, 0); /*Pull High Reset */
567
568 /*set device ready*/
569 REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 1, 0, 0);
570 }
571
mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output * output,int pipe)572 void mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output *output, int pipe)
573 {
574 struct drm_device *dev = output->dev;
575
576 /* clear special packet sent bit */
577 if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
578 REG_WRITE(MIPI_INTR_STAT_REG(pipe),
579 DSI_INTR_STATE_SPL_PKG_SENT);
580
581 /*send turn on package*/
582 REG_WRITE(MIPI_DPI_CONTROL_REG(pipe), DSI_DPI_CTRL_HS_TURN_ON);
583
584 /*wait for SPL_PKG_SENT interrupt*/
585 mdfld_wait_for_SPL_PKG_SENT(dev, pipe);
586
587 if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
588 REG_WRITE(MIPI_INTR_STAT_REG(pipe),
589 DSI_INTR_STATE_SPL_PKG_SENT);
590
591 output->panel_on = 1;
592
593 /* FIXME the following is disabled to WA the X slow start issue
594 for TMD panel
595 if (pipe == 2)
596 dev_priv->dpi_panel_on2 = true;
597 else if (pipe == 0)
598 dev_priv->dpi_panel_on = true; */
599 }
600
mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output * output,int pipe)601 static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output,
602 int pipe)
603 {
604 struct drm_device *dev = output->dev;
605
606 /*if output is on, or mode setting didn't happen, ignore this*/
607 if ((!output->panel_on) || output->first_boot) {
608 output->first_boot = 0;
609 return;
610 }
611
612 /* Wait for dpi fifo to empty */
613 mdfld_wait_for_DPI_CTRL_FIFO(dev, pipe);
614
615 /* Clear the special packet interrupt bit if set */
616 if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
617 REG_WRITE(MIPI_INTR_STAT_REG(pipe),
618 DSI_INTR_STATE_SPL_PKG_SENT);
619
620 if (REG_READ(MIPI_DPI_CONTROL_REG(pipe)) == DSI_DPI_CTRL_HS_SHUTDOWN)
621 goto shutdown_out;
622
623 REG_WRITE(MIPI_DPI_CONTROL_REG(pipe), DSI_DPI_CTRL_HS_SHUTDOWN);
624
625 shutdown_out:
626 output->panel_on = 0;
627 output->first_boot = 0;
628
629 /* FIXME the following is disabled to WA the X slow start issue
630 for TMD panel
631 if (pipe == 2)
632 dev_priv->dpi_panel_on2 = false;
633 else if (pipe == 0)
634 dev_priv->dpi_panel_on = false; */
635 }
636
mdfld_dsi_dpi_set_power(struct drm_encoder * encoder,bool on)637 static void mdfld_dsi_dpi_set_power(struct drm_encoder *encoder, bool on)
638 {
639 struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
640 struct mdfld_dsi_dpi_output *dpi_output =
641 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
642 struct mdfld_dsi_config *dsi_config =
643 mdfld_dsi_encoder_get_config(dsi_encoder);
644 int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
645 struct drm_device *dev = dsi_config->dev;
646 struct drm_psb_private *dev_priv = dev->dev_private;
647
648 /*start up display island if it was shutdown*/
649 if (!gma_power_begin(dev, true))
650 return;
651
652 if (on) {
653 if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
654 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
655 else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
656 mdfld_dsi_configure_up(dsi_encoder, pipe);
657 else {
658 /*enable mipi port*/
659 REG_WRITE(MIPI_PORT_CONTROL(pipe),
660 REG_READ(MIPI_PORT_CONTROL(pipe)) | BIT(31));
661 REG_READ(MIPI_PORT_CONTROL(pipe));
662
663 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
664 mdfld_dsi_tpo_ic_init(dsi_config, pipe);
665 }
666 dev_priv->dpi_panel_on[pipe] = true;
667 } else {
668 if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
669 mdfld_dsi_dpi_shut_down(dpi_output, pipe);
670 else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
671 mdfld_dsi_configure_down(dsi_encoder, pipe);
672 else {
673 mdfld_dsi_dpi_shut_down(dpi_output, pipe);
674
675 /*disable mipi port*/
676 REG_WRITE(MIPI_PORT_CONTROL(pipe),
677 REG_READ(MIPI_PORT_CONTROL(pipe)) & ~BIT(31));
678 REG_READ(MIPI_PORT_CONTROL(pipe));
679 }
680 dev_priv->dpi_panel_on[pipe] = false;
681 }
682 gma_power_end(dev);
683 }
684
mdfld_dsi_dpi_dpms(struct drm_encoder * encoder,int mode)685 void mdfld_dsi_dpi_dpms(struct drm_encoder *encoder, int mode)
686 {
687 mdfld_dsi_dpi_set_power(encoder, mode == DRM_MODE_DPMS_ON);
688 }
689
mdfld_dsi_dpi_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)690 bool mdfld_dsi_dpi_mode_fixup(struct drm_encoder *encoder,
691 const struct drm_display_mode *mode,
692 struct drm_display_mode *adjusted_mode)
693 {
694 struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
695 struct mdfld_dsi_config *dsi_config =
696 mdfld_dsi_encoder_get_config(dsi_encoder);
697 struct drm_display_mode *fixed_mode = dsi_config->fixed_mode;
698
699 if (fixed_mode) {
700 adjusted_mode->hdisplay = fixed_mode->hdisplay;
701 adjusted_mode->hsync_start = fixed_mode->hsync_start;
702 adjusted_mode->hsync_end = fixed_mode->hsync_end;
703 adjusted_mode->htotal = fixed_mode->htotal;
704 adjusted_mode->vdisplay = fixed_mode->vdisplay;
705 adjusted_mode->vsync_start = fixed_mode->vsync_start;
706 adjusted_mode->vsync_end = fixed_mode->vsync_end;
707 adjusted_mode->vtotal = fixed_mode->vtotal;
708 adjusted_mode->clock = fixed_mode->clock;
709 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
710 }
711 return true;
712 }
713
mdfld_dsi_dpi_prepare(struct drm_encoder * encoder)714 void mdfld_dsi_dpi_prepare(struct drm_encoder *encoder)
715 {
716 mdfld_dsi_dpi_set_power(encoder, false);
717 }
718
mdfld_dsi_dpi_commit(struct drm_encoder * encoder)719 void mdfld_dsi_dpi_commit(struct drm_encoder *encoder)
720 {
721 mdfld_dsi_dpi_set_power(encoder, true);
722 }
723
724 /* For TC35876X */
725 /* This functionality was implemented in FW in iCDK */
726 /* But removed in DV0 and later. So need to add here. */
mipi_set_properties(struct mdfld_dsi_config * dsi_config,int pipe)727 static void mipi_set_properties(struct mdfld_dsi_config *dsi_config, int pipe)
728 {
729 struct drm_device *dev = dsi_config->dev;
730
731 REG_WRITE(MIPI_CTRL_REG(pipe), 0x00000018);
732 REG_WRITE(MIPI_INTR_EN_REG(pipe), 0xffffffff);
733 REG_WRITE(MIPI_HS_TX_TIMEOUT_REG(pipe), 0xffffff);
734 REG_WRITE(MIPI_LP_RX_TIMEOUT_REG(pipe), 0xffffff);
735 REG_WRITE(MIPI_TURN_AROUND_TIMEOUT_REG(pipe), 0x14);
736 REG_WRITE(MIPI_DEVICE_RESET_TIMER_REG(pipe), 0xff);
737 REG_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe), 0x25);
738 REG_WRITE(MIPI_INIT_COUNT_REG(pipe), 0xf0);
739 REG_WRITE(MIPI_EOT_DISABLE_REG(pipe), 0x00000000);
740 REG_WRITE(MIPI_LP_BYTECLK_REG(pipe), 0x00000004);
741 REG_WRITE(MIPI_DBI_BW_CTRL_REG(pipe), 0x00000820);
742 REG_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe), (0xa << 16) | 0x14);
743 }
744
mdfld_mipi_set_video_timing(struct mdfld_dsi_config * dsi_config,int pipe)745 static void mdfld_mipi_set_video_timing(struct mdfld_dsi_config *dsi_config,
746 int pipe)
747 {
748 struct drm_device *dev = dsi_config->dev;
749 struct mdfld_dsi_dpi_timing dpi_timing;
750 struct drm_display_mode *mode = dsi_config->mode;
751
752 mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing,
753 dsi_config->lane_count,
754 dsi_config->bpp);
755
756 REG_WRITE(MIPI_DPI_RESOLUTION_REG(pipe),
757 mode->vdisplay << 16 | mode->hdisplay);
758 REG_WRITE(MIPI_HSYNC_COUNT_REG(pipe),
759 dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
760 REG_WRITE(MIPI_HBP_COUNT_REG(pipe),
761 dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
762 REG_WRITE(MIPI_HFP_COUNT_REG(pipe),
763 dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
764 REG_WRITE(MIPI_HACTIVE_COUNT_REG(pipe),
765 dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
766 REG_WRITE(MIPI_VSYNC_COUNT_REG(pipe),
767 dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
768 REG_WRITE(MIPI_VBP_COUNT_REG(pipe),
769 dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
770 REG_WRITE(MIPI_VFP_COUNT_REG(pipe),
771 dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
772 }
773
mdfld_mipi_config(struct mdfld_dsi_config * dsi_config,int pipe)774 static void mdfld_mipi_config(struct mdfld_dsi_config *dsi_config, int pipe)
775 {
776 struct drm_device *dev = dsi_config->dev;
777 int lane_count = dsi_config->lane_count;
778
779 if (pipe) {
780 REG_WRITE(MIPI_PORT_CONTROL(0), 0x00000002);
781 REG_WRITE(MIPI_PORT_CONTROL(2), 0x80000000);
782 } else {
783 REG_WRITE(MIPI_PORT_CONTROL(0), 0x80010000);
784 REG_WRITE(MIPI_PORT_CONTROL(2), 0x00);
785 }
786
787 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x150A600F);
788 REG_WRITE(MIPI_VIDEO_MODE_FORMAT_REG(pipe), 0x0000000F);
789
790 /* lane_count = 3 */
791 REG_WRITE(MIPI_DSI_FUNC_PRG_REG(pipe), 0x00000200 | lane_count);
792
793 mdfld_mipi_set_video_timing(dsi_config, pipe);
794 }
795
mdfld_set_pipe_timing(struct mdfld_dsi_config * dsi_config,int pipe)796 static void mdfld_set_pipe_timing(struct mdfld_dsi_config *dsi_config, int pipe)
797 {
798 struct drm_device *dev = dsi_config->dev;
799 struct drm_display_mode *mode = dsi_config->mode;
800
801 REG_WRITE(HTOTAL_A, ((mode->htotal - 1) << 16) | (mode->hdisplay - 1));
802 REG_WRITE(HBLANK_A, ((mode->htotal - 1) << 16) | (mode->hdisplay - 1));
803 REG_WRITE(HSYNC_A,
804 ((mode->hsync_end - 1) << 16) | (mode->hsync_start - 1));
805
806 REG_WRITE(VTOTAL_A, ((mode->vtotal - 1) << 16) | (mode->vdisplay - 1));
807 REG_WRITE(VBLANK_A, ((mode->vtotal - 1) << 16) | (mode->vdisplay - 1));
808 REG_WRITE(VSYNC_A,
809 ((mode->vsync_end - 1) << 16) | (mode->vsync_start - 1));
810
811 REG_WRITE(PIPEASRC,
812 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
813 }
814 /* End for TC35876X */
815
mdfld_dsi_dpi_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)816 void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
817 struct drm_display_mode *mode,
818 struct drm_display_mode *adjusted_mode)
819 {
820 struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
821 struct mdfld_dsi_dpi_output *dpi_output =
822 MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
823 struct mdfld_dsi_config *dsi_config =
824 mdfld_dsi_encoder_get_config(dsi_encoder);
825 struct drm_device *dev = dsi_config->dev;
826 struct drm_psb_private *dev_priv = dev->dev_private;
827 int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
828 u32 pipeconf_reg = PIPEACONF;
829 u32 dspcntr_reg = DSPACNTR;
830 u32 pipeconf, dspcntr;
831
832 u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
833
834 if (WARN_ON(pipe < 0))
835 return;
836
837 pipeconf = dev_priv->pipeconf[pipe];
838 dspcntr = dev_priv->dspcntr[pipe];
839
840 if (pipe) {
841 pipeconf_reg = PIPECCONF;
842 dspcntr_reg = DSPCCNTR;
843 } else {
844 if (mdfld_get_panel_type(dev, pipe) == TC35876X)
845 mipi &= (~0x03); /* Use all four lanes */
846 else
847 mipi |= 2;
848 }
849
850 /*start up display island if it was shutdown*/
851 if (!gma_power_begin(dev, true))
852 return;
853
854 if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
855 /*
856 * The following logic is required to reset the bridge and
857 * configure. This also starts the DSI clock at 200MHz.
858 */
859 tc35876x_set_bridge_reset_state(dev, 0); /*Pull High Reset */
860 tc35876x_toshiba_bridge_panel_on(dev);
861 udelay(100);
862 /* Now start the DSI clock */
863 REG_WRITE(MRST_DPLL_A, 0x00);
864 REG_WRITE(MRST_FPA0, 0xC1);
865 REG_WRITE(MRST_DPLL_A, 0x00800000);
866 udelay(500);
867 REG_WRITE(MRST_DPLL_A, 0x80800000);
868
869 if (REG_BIT_WAIT(pipeconf_reg, 1, 29))
870 dev_err(&dev->pdev->dev, "%s: DSI PLL lock timeout\n",
871 __func__);
872
873 REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x2A0c6008);
874
875 mipi_set_properties(dsi_config, pipe);
876 mdfld_mipi_config(dsi_config, pipe);
877 mdfld_set_pipe_timing(dsi_config, pipe);
878
879 REG_WRITE(DSPABASE, 0x00);
880 REG_WRITE(DSPASIZE,
881 ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
882
883 REG_WRITE(DSPACNTR, 0x98000000);
884 REG_WRITE(DSPASURF, 0x00);
885
886 REG_WRITE(VGACNTRL, 0x80000000);
887 REG_WRITE(DEVICE_READY_REG, 0x00000001);
888
889 REG_WRITE(MIPI_PORT_CONTROL(pipe), 0x80810000);
890 } else {
891 /*set up mipi port FIXME: do at init time */
892 REG_WRITE(MIPI_PORT_CONTROL(pipe), mipi);
893 }
894 REG_READ(MIPI_PORT_CONTROL(pipe));
895
896 if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
897 /* NOP */
898 } else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
899 /* set up DSI controller DPI interface */
900 mdfld_dsi_dpi_controller_init(dsi_config, pipe);
901
902 /* Configure MIPI Bridge and Panel */
903 tc35876x_configure_lvds_bridge(dev);
904 dev_priv->dpi_panel_on[pipe] = true;
905 } else {
906 /*turn on DPI interface*/
907 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
908 }
909
910 /*set up pipe*/
911 REG_WRITE(pipeconf_reg, pipeconf);
912 REG_READ(pipeconf_reg);
913
914 /*set up display plane*/
915 REG_WRITE(dspcntr_reg, dspcntr);
916 REG_READ(dspcntr_reg);
917
918 msleep(20); /* FIXME: this should wait for vblank */
919
920 if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
921 /* NOP */
922 } else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
923 mdfld_dsi_dpi_turn_on(dpi_output, pipe);
924 } else {
925 /* init driver ic */
926 mdfld_dsi_tpo_ic_init(dsi_config, pipe);
927 /*init backlight*/
928 mdfld_dsi_brightness_init(dsi_config, pipe);
929 }
930
931 gma_power_end(dev);
932 }
933
934 /*
935 * Init DSI DPI encoder.
936 * Allocate an mdfld_dsi_encoder and attach it to given @dsi_connector
937 * return pointer of newly allocated DPI encoder, NULL on error
938 */
mdfld_dsi_dpi_init(struct drm_device * dev,struct mdfld_dsi_connector * dsi_connector,const struct panel_funcs * p_funcs)939 struct mdfld_dsi_encoder *mdfld_dsi_dpi_init(struct drm_device *dev,
940 struct mdfld_dsi_connector *dsi_connector,
941 const struct panel_funcs *p_funcs)
942 {
943 struct mdfld_dsi_dpi_output *dpi_output = NULL;
944 struct mdfld_dsi_config *dsi_config;
945 struct drm_connector *connector = NULL;
946 struct drm_encoder *encoder = NULL;
947 int pipe;
948 u32 data;
949 int ret;
950
951 pipe = dsi_connector->pipe;
952
953 if (mdfld_get_panel_type(dev, pipe) != TC35876X) {
954 dsi_config = mdfld_dsi_get_config(dsi_connector);
955
956 /* panel hard-reset */
957 if (p_funcs->reset) {
958 ret = p_funcs->reset(dev, pipe);
959 if (ret) {
960 DRM_ERROR("Panel %d hard-reset failed\n", pipe);
961 return NULL;
962 }
963 }
964
965 /* panel drvIC init */
966 if (p_funcs->drv_ic_init)
967 p_funcs->drv_ic_init(dsi_config, pipe);
968
969 /* panel power mode detect */
970 ret = mdfld_dsi_get_power_mode(dsi_config, &data, false);
971 if (ret) {
972 DRM_ERROR("Panel %d get power mode failed\n", pipe);
973 dsi_connector->status = connector_status_disconnected;
974 } else {
975 DRM_INFO("pipe %d power mode 0x%x\n", pipe, data);
976 dsi_connector->status = connector_status_connected;
977 }
978 }
979
980 dpi_output = kzalloc(sizeof(struct mdfld_dsi_dpi_output), GFP_KERNEL);
981 if (!dpi_output) {
982 DRM_ERROR("No memory\n");
983 return NULL;
984 }
985
986 dpi_output->panel_on = 0;
987 dpi_output->dev = dev;
988 if (mdfld_get_panel_type(dev, pipe) != TC35876X)
989 dpi_output->p_funcs = p_funcs;
990 dpi_output->first_boot = 1;
991
992 /*get fixed mode*/
993 dsi_config = mdfld_dsi_get_config(dsi_connector);
994
995 /*create drm encoder object*/
996 connector = &dsi_connector->base.base;
997 encoder = &dpi_output->base.base.base;
998 drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_LVDS);
999 drm_encoder_helper_add(encoder,
1000 p_funcs->encoder_helper_funcs);
1001
1002 /*attach to given connector*/
1003 drm_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 = 0;
1009 } else {
1010 encoder->possible_crtcs = (1 << 0);
1011 encoder->possible_clones = 0;
1012 }
1013
1014 dsi_connector->base.encoder = &dpi_output->base.base;
1015
1016 return &dpi_output->base;
1017 }
1018
