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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
[deliverable/linux.git] / drivers / gpu / drm / exynos / exynos_mixer.c
1 /*
2 * Copyright (C) 2011 Samsung Electronics Co.Ltd
3 * Authors:
4 * Seung-Woo Kim <sw0312.kim@samsung.com>
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 *
8 * Based on drivers/media/video/s5p-tv/mixer_reg.c
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17 #include <drm/drmP.h>
18
19 #include "regs-mixer.h"
20 #include "regs-vp.h"
21
22 #include <linux/kernel.h>
23 #include <linux/spinlock.h>
24 #include <linux/wait.h>
25 #include <linux/i2c.h>
26 #include <linux/platform_device.h>
27 #include <linux/interrupt.h>
28 #include <linux/irq.h>
29 #include <linux/delay.h>
30 #include <linux/pm_runtime.h>
31 #include <linux/clk.h>
32 #include <linux/regulator/consumer.h>
33 #include <linux/of.h>
34
35 #include <drm/exynos_drm.h>
36
37 #include "exynos_drm_drv.h"
38 #include "exynos_drm_crtc.h"
39 #include "exynos_drm_iommu.h"
40 #include "exynos_mixer.h"
41
42 #define get_mixer_manager(dev) platform_get_drvdata(to_platform_device(dev))
43
44 #define MIXER_WIN_NR 3
45 #define MIXER_DEFAULT_WIN 0
46
47 struct hdmi_win_data {
48 dma_addr_t dma_addr;
49 dma_addr_t chroma_dma_addr;
50 uint32_t pixel_format;
51 unsigned int bpp;
52 unsigned int crtc_x;
53 unsigned int crtc_y;
54 unsigned int crtc_width;
55 unsigned int crtc_height;
56 unsigned int fb_x;
57 unsigned int fb_y;
58 unsigned int fb_width;
59 unsigned int fb_height;
60 unsigned int src_width;
61 unsigned int src_height;
62 unsigned int mode_width;
63 unsigned int mode_height;
64 unsigned int scan_flags;
65 bool enabled;
66 bool resume;
67 };
68
69 struct mixer_resources {
70 int irq;
71 void __iomem *mixer_regs;
72 void __iomem *vp_regs;
73 spinlock_t reg_slock;
74 struct clk *mixer;
75 struct clk *vp;
76 struct clk *sclk_mixer;
77 struct clk *sclk_hdmi;
78 struct clk *sclk_dac;
79 };
80
81 enum mixer_version_id {
82 MXR_VER_0_0_0_16,
83 MXR_VER_16_0_33_0,
84 MXR_VER_128_0_0_184,
85 };
86
87 struct mixer_context {
88 struct platform_device *pdev;
89 struct device *dev;
90 struct drm_device *drm_dev;
91 int pipe;
92 bool interlace;
93 bool powered;
94 bool vp_enabled;
95 u32 int_en;
96
97 struct mutex mixer_mutex;
98 struct mixer_resources mixer_res;
99 struct hdmi_win_data win_data[MIXER_WIN_NR];
100 enum mixer_version_id mxr_ver;
101 wait_queue_head_t wait_vsync_queue;
102 atomic_t wait_vsync_event;
103 };
104
105 struct mixer_drv_data {
106 enum mixer_version_id version;
107 bool is_vp_enabled;
108 };
109
110 static const u8 filter_y_horiz_tap8[] = {
111 0, -1, -1, -1, -1, -1, -1, -1,
112 -1, -1, -1, -1, -1, 0, 0, 0,
113 0, 2, 4, 5, 6, 6, 6, 6,
114 6, 5, 5, 4, 3, 2, 1, 1,
115 0, -6, -12, -16, -18, -20, -21, -20,
116 -20, -18, -16, -13, -10, -8, -5, -2,
117 127, 126, 125, 121, 114, 107, 99, 89,
118 79, 68, 57, 46, 35, 25, 16, 8,
119 };
120
121 static const u8 filter_y_vert_tap4[] = {
122 0, -3, -6, -8, -8, -8, -8, -7,
123 -6, -5, -4, -3, -2, -1, -1, 0,
124 127, 126, 124, 118, 111, 102, 92, 81,
125 70, 59, 48, 37, 27, 19, 11, 5,
126 0, 5, 11, 19, 27, 37, 48, 59,
127 70, 81, 92, 102, 111, 118, 124, 126,
128 0, 0, -1, -1, -2, -3, -4, -5,
129 -6, -7, -8, -8, -8, -8, -6, -3,
130 };
131
132 static const u8 filter_cr_horiz_tap4[] = {
133 0, -3, -6, -8, -8, -8, -8, -7,
134 -6, -5, -4, -3, -2, -1, -1, 0,
135 127, 126, 124, 118, 111, 102, 92, 81,
136 70, 59, 48, 37, 27, 19, 11, 5,
137 };
138
139 static inline u32 vp_reg_read(struct mixer_resources *res, u32 reg_id)
140 {
141 return readl(res->vp_regs + reg_id);
142 }
143
144 static inline void vp_reg_write(struct mixer_resources *res, u32 reg_id,
145 u32 val)
146 {
147 writel(val, res->vp_regs + reg_id);
148 }
149
150 static inline void vp_reg_writemask(struct mixer_resources *res, u32 reg_id,
151 u32 val, u32 mask)
152 {
153 u32 old = vp_reg_read(res, reg_id);
154
155 val = (val & mask) | (old & ~mask);
156 writel(val, res->vp_regs + reg_id);
157 }
158
159 static inline u32 mixer_reg_read(struct mixer_resources *res, u32 reg_id)
160 {
161 return readl(res->mixer_regs + reg_id);
162 }
163
164 static inline void mixer_reg_write(struct mixer_resources *res, u32 reg_id,
165 u32 val)
166 {
167 writel(val, res->mixer_regs + reg_id);
168 }
169
170 static inline void mixer_reg_writemask(struct mixer_resources *res,
171 u32 reg_id, u32 val, u32 mask)
172 {
173 u32 old = mixer_reg_read(res, reg_id);
174
175 val = (val & mask) | (old & ~mask);
176 writel(val, res->mixer_regs + reg_id);
177 }
178
179 static void mixer_regs_dump(struct mixer_context *ctx)
180 {
181 #define DUMPREG(reg_id) \
182 do { \
183 DRM_DEBUG_KMS(#reg_id " = %08x\n", \
184 (u32)readl(ctx->mixer_res.mixer_regs + reg_id)); \
185 } while (0)
186
187 DUMPREG(MXR_STATUS);
188 DUMPREG(MXR_CFG);
189 DUMPREG(MXR_INT_EN);
190 DUMPREG(MXR_INT_STATUS);
191
192 DUMPREG(MXR_LAYER_CFG);
193 DUMPREG(MXR_VIDEO_CFG);
194
195 DUMPREG(MXR_GRAPHIC0_CFG);
196 DUMPREG(MXR_GRAPHIC0_BASE);
197 DUMPREG(MXR_GRAPHIC0_SPAN);
198 DUMPREG(MXR_GRAPHIC0_WH);
199 DUMPREG(MXR_GRAPHIC0_SXY);
200 DUMPREG(MXR_GRAPHIC0_DXY);
201
202 DUMPREG(MXR_GRAPHIC1_CFG);
203 DUMPREG(MXR_GRAPHIC1_BASE);
204 DUMPREG(MXR_GRAPHIC1_SPAN);
205 DUMPREG(MXR_GRAPHIC1_WH);
206 DUMPREG(MXR_GRAPHIC1_SXY);
207 DUMPREG(MXR_GRAPHIC1_DXY);
208 #undef DUMPREG
209 }
210
211 static void vp_regs_dump(struct mixer_context *ctx)
212 {
213 #define DUMPREG(reg_id) \
214 do { \
215 DRM_DEBUG_KMS(#reg_id " = %08x\n", \
216 (u32) readl(ctx->mixer_res.vp_regs + reg_id)); \
217 } while (0)
218
219 DUMPREG(VP_ENABLE);
220 DUMPREG(VP_SRESET);
221 DUMPREG(VP_SHADOW_UPDATE);
222 DUMPREG(VP_FIELD_ID);
223 DUMPREG(VP_MODE);
224 DUMPREG(VP_IMG_SIZE_Y);
225 DUMPREG(VP_IMG_SIZE_C);
226 DUMPREG(VP_PER_RATE_CTRL);
227 DUMPREG(VP_TOP_Y_PTR);
228 DUMPREG(VP_BOT_Y_PTR);
229 DUMPREG(VP_TOP_C_PTR);
230 DUMPREG(VP_BOT_C_PTR);
231 DUMPREG(VP_ENDIAN_MODE);
232 DUMPREG(VP_SRC_H_POSITION);
233 DUMPREG(VP_SRC_V_POSITION);
234 DUMPREG(VP_SRC_WIDTH);
235 DUMPREG(VP_SRC_HEIGHT);
236 DUMPREG(VP_DST_H_POSITION);
237 DUMPREG(VP_DST_V_POSITION);
238 DUMPREG(VP_DST_WIDTH);
239 DUMPREG(VP_DST_HEIGHT);
240 DUMPREG(VP_H_RATIO);
241 DUMPREG(VP_V_RATIO);
242
243 #undef DUMPREG
244 }
245
246 static inline void vp_filter_set(struct mixer_resources *res,
247 int reg_id, const u8 *data, unsigned int size)
248 {
249 /* assure 4-byte align */
250 BUG_ON(size & 3);
251 for (; size; size -= 4, reg_id += 4, data += 4) {
252 u32 val = (data[0] << 24) | (data[1] << 16) |
253 (data[2] << 8) | data[3];
254 vp_reg_write(res, reg_id, val);
255 }
256 }
257
258 static void vp_default_filter(struct mixer_resources *res)
259 {
260 vp_filter_set(res, VP_POLY8_Y0_LL,
261 filter_y_horiz_tap8, sizeof(filter_y_horiz_tap8));
262 vp_filter_set(res, VP_POLY4_Y0_LL,
263 filter_y_vert_tap4, sizeof(filter_y_vert_tap4));
264 vp_filter_set(res, VP_POLY4_C0_LL,
265 filter_cr_horiz_tap4, sizeof(filter_cr_horiz_tap4));
266 }
267
268 static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable)
269 {
270 struct mixer_resources *res = &ctx->mixer_res;
271
272 /* block update on vsync */
273 mixer_reg_writemask(res, MXR_STATUS, enable ?
274 MXR_STATUS_SYNC_ENABLE : 0, MXR_STATUS_SYNC_ENABLE);
275
276 if (ctx->vp_enabled)
277 vp_reg_write(res, VP_SHADOW_UPDATE, enable ?
278 VP_SHADOW_UPDATE_ENABLE : 0);
279 }
280
281 static void mixer_cfg_scan(struct mixer_context *ctx, unsigned int height)
282 {
283 struct mixer_resources *res = &ctx->mixer_res;
284 u32 val;
285
286 /* choosing between interlace and progressive mode */
287 val = (ctx->interlace ? MXR_CFG_SCAN_INTERLACE :
288 MXR_CFG_SCAN_PROGRASSIVE);
289
290 if (ctx->mxr_ver != MXR_VER_128_0_0_184) {
291 /* choosing between proper HD and SD mode */
292 if (height <= 480)
293 val |= MXR_CFG_SCAN_NTSC | MXR_CFG_SCAN_SD;
294 else if (height <= 576)
295 val |= MXR_CFG_SCAN_PAL | MXR_CFG_SCAN_SD;
296 else if (height <= 720)
297 val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
298 else if (height <= 1080)
299 val |= MXR_CFG_SCAN_HD_1080 | MXR_CFG_SCAN_HD;
300 else
301 val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
302 }
303
304 mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_SCAN_MASK);
305 }
306
307 static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height)
308 {
309 struct mixer_resources *res = &ctx->mixer_res;
310 u32 val;
311
312 if (height == 480) {
313 val = MXR_CFG_RGB601_0_255;
314 } else if (height == 576) {
315 val = MXR_CFG_RGB601_0_255;
316 } else if (height == 720) {
317 val = MXR_CFG_RGB709_16_235;
318 mixer_reg_write(res, MXR_CM_COEFF_Y,
319 (1 << 30) | (94 << 20) | (314 << 10) |
320 (32 << 0));
321 mixer_reg_write(res, MXR_CM_COEFF_CB,
322 (972 << 20) | (851 << 10) | (225 << 0));
323 mixer_reg_write(res, MXR_CM_COEFF_CR,
324 (225 << 20) | (820 << 10) | (1004 << 0));
325 } else if (height == 1080) {
326 val = MXR_CFG_RGB709_16_235;
327 mixer_reg_write(res, MXR_CM_COEFF_Y,
328 (1 << 30) | (94 << 20) | (314 << 10) |
329 (32 << 0));
330 mixer_reg_write(res, MXR_CM_COEFF_CB,
331 (972 << 20) | (851 << 10) | (225 << 0));
332 mixer_reg_write(res, MXR_CM_COEFF_CR,
333 (225 << 20) | (820 << 10) | (1004 << 0));
334 } else {
335 val = MXR_CFG_RGB709_16_235;
336 mixer_reg_write(res, MXR_CM_COEFF_Y,
337 (1 << 30) | (94 << 20) | (314 << 10) |
338 (32 << 0));
339 mixer_reg_write(res, MXR_CM_COEFF_CB,
340 (972 << 20) | (851 << 10) | (225 << 0));
341 mixer_reg_write(res, MXR_CM_COEFF_CR,
342 (225 << 20) | (820 << 10) | (1004 << 0));
343 }
344
345 mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_RGB_FMT_MASK);
346 }
347
348 static void mixer_cfg_layer(struct mixer_context *ctx, int win, bool enable)
349 {
350 struct mixer_resources *res = &ctx->mixer_res;
351 u32 val = enable ? ~0 : 0;
352
353 switch (win) {
354 case 0:
355 mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP0_ENABLE);
356 break;
357 case 1:
358 mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP1_ENABLE);
359 break;
360 case 2:
361 if (ctx->vp_enabled) {
362 vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON);
363 mixer_reg_writemask(res, MXR_CFG, val,
364 MXR_CFG_VP_ENABLE);
365 }
366 break;
367 }
368 }
369
370 static void mixer_run(struct mixer_context *ctx)
371 {
372 struct mixer_resources *res = &ctx->mixer_res;
373
374 mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_REG_RUN);
375
376 mixer_regs_dump(ctx);
377 }
378
379 static void vp_video_buffer(struct mixer_context *ctx, int win)
380 {
381 struct mixer_resources *res = &ctx->mixer_res;
382 unsigned long flags;
383 struct hdmi_win_data *win_data;
384 unsigned int x_ratio, y_ratio;
385 unsigned int buf_num = 1;
386 dma_addr_t luma_addr[2], chroma_addr[2];
387 bool tiled_mode = false;
388 bool crcb_mode = false;
389 u32 val;
390
391 win_data = &ctx->win_data[win];
392
393 switch (win_data->pixel_format) {
394 case DRM_FORMAT_NV12MT:
395 tiled_mode = true;
396 case DRM_FORMAT_NV12:
397 crcb_mode = false;
398 buf_num = 2;
399 break;
400 /* TODO: single buffer format NV12, NV21 */
401 default:
402 /* ignore pixel format at disable time */
403 if (!win_data->dma_addr)
404 break;
405
406 DRM_ERROR("pixel format for vp is wrong [%d].\n",
407 win_data->pixel_format);
408 return;
409 }
410
411 /* scaling feature: (src << 16) / dst */
412 x_ratio = (win_data->src_width << 16) / win_data->crtc_width;
413 y_ratio = (win_data->src_height << 16) / win_data->crtc_height;
414
415 if (buf_num == 2) {
416 luma_addr[0] = win_data->dma_addr;
417 chroma_addr[0] = win_data->chroma_dma_addr;
418 } else {
419 luma_addr[0] = win_data->dma_addr;
420 chroma_addr[0] = win_data->dma_addr
421 + (win_data->fb_width * win_data->fb_height);
422 }
423
424 if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) {
425 ctx->interlace = true;
426 if (tiled_mode) {
427 luma_addr[1] = luma_addr[0] + 0x40;
428 chroma_addr[1] = chroma_addr[0] + 0x40;
429 } else {
430 luma_addr[1] = luma_addr[0] + win_data->fb_width;
431 chroma_addr[1] = chroma_addr[0] + win_data->fb_width;
432 }
433 } else {
434 ctx->interlace = false;
435 luma_addr[1] = 0;
436 chroma_addr[1] = 0;
437 }
438
439 spin_lock_irqsave(&res->reg_slock, flags);
440 mixer_vsync_set_update(ctx, false);
441
442 /* interlace or progressive scan mode */
443 val = (ctx->interlace ? ~0 : 0);
444 vp_reg_writemask(res, VP_MODE, val, VP_MODE_LINE_SKIP);
445
446 /* setup format */
447 val = (crcb_mode ? VP_MODE_NV21 : VP_MODE_NV12);
448 val |= (tiled_mode ? VP_MODE_MEM_TILED : VP_MODE_MEM_LINEAR);
449 vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK);
450
451 /* setting size of input image */
452 vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_width) |
453 VP_IMG_VSIZE(win_data->fb_height));
454 /* chroma height has to reduced by 2 to avoid chroma distorions */
455 vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_width) |
456 VP_IMG_VSIZE(win_data->fb_height / 2));
457
458 vp_reg_write(res, VP_SRC_WIDTH, win_data->src_width);
459 vp_reg_write(res, VP_SRC_HEIGHT, win_data->src_height);
460 vp_reg_write(res, VP_SRC_H_POSITION,
461 VP_SRC_H_POSITION_VAL(win_data->fb_x));
462 vp_reg_write(res, VP_SRC_V_POSITION, win_data->fb_y);
463
464 vp_reg_write(res, VP_DST_WIDTH, win_data->crtc_width);
465 vp_reg_write(res, VP_DST_H_POSITION, win_data->crtc_x);
466 if (ctx->interlace) {
467 vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height / 2);
468 vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y / 2);
469 } else {
470 vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height);
471 vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y);
472 }
473
474 vp_reg_write(res, VP_H_RATIO, x_ratio);
475 vp_reg_write(res, VP_V_RATIO, y_ratio);
476
477 vp_reg_write(res, VP_ENDIAN_MODE, VP_ENDIAN_MODE_LITTLE);
478
479 /* set buffer address to vp */
480 vp_reg_write(res, VP_TOP_Y_PTR, luma_addr[0]);
481 vp_reg_write(res, VP_BOT_Y_PTR, luma_addr[1]);
482 vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]);
483 vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]);
484
485 mixer_cfg_scan(ctx, win_data->mode_height);
486 mixer_cfg_rgb_fmt(ctx, win_data->mode_height);
487 mixer_cfg_layer(ctx, win, true);
488 mixer_run(ctx);
489
490 mixer_vsync_set_update(ctx, true);
491 spin_unlock_irqrestore(&res->reg_slock, flags);
492
493 vp_regs_dump(ctx);
494 }
495
496 static void mixer_layer_update(struct mixer_context *ctx)
497 {
498 struct mixer_resources *res = &ctx->mixer_res;
499 u32 val;
500
501 val = mixer_reg_read(res, MXR_CFG);
502
503 /* allow one update per vsync only */
504 if (!(val & MXR_CFG_LAYER_UPDATE_COUNT_MASK))
505 mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE);
506 }
507
508 static void mixer_graph_buffer(struct mixer_context *ctx, int win)
509 {
510 struct mixer_resources *res = &ctx->mixer_res;
511 unsigned long flags;
512 struct hdmi_win_data *win_data;
513 unsigned int x_ratio, y_ratio;
514 unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
515 dma_addr_t dma_addr;
516 unsigned int fmt;
517 u32 val;
518
519 win_data = &ctx->win_data[win];
520
521 #define RGB565 4
522 #define ARGB1555 5
523 #define ARGB4444 6
524 #define ARGB8888 7
525
526 switch (win_data->bpp) {
527 case 16:
528 fmt = ARGB4444;
529 break;
530 case 32:
531 fmt = ARGB8888;
532 break;
533 default:
534 fmt = ARGB8888;
535 }
536
537 /* 2x scaling feature */
538 x_ratio = 0;
539 y_ratio = 0;
540
541 dst_x_offset = win_data->crtc_x;
542 dst_y_offset = win_data->crtc_y;
543
544 /* converting dma address base and source offset */
545 dma_addr = win_data->dma_addr
546 + (win_data->fb_x * win_data->bpp >> 3)
547 + (win_data->fb_y * win_data->fb_width * win_data->bpp >> 3);
548 src_x_offset = 0;
549 src_y_offset = 0;
550
551 if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE)
552 ctx->interlace = true;
553 else
554 ctx->interlace = false;
555
556 spin_lock_irqsave(&res->reg_slock, flags);
557 mixer_vsync_set_update(ctx, false);
558
559 /* setup format */
560 mixer_reg_writemask(res, MXR_GRAPHIC_CFG(win),
561 MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK);
562
563 /* setup geometry */
564 mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), win_data->fb_width);
565
566 /* setup display size */
567 if (ctx->mxr_ver == MXR_VER_128_0_0_184 &&
568 win == MIXER_DEFAULT_WIN) {
569 val = MXR_MXR_RES_HEIGHT(win_data->fb_height);
570 val |= MXR_MXR_RES_WIDTH(win_data->fb_width);
571 mixer_reg_write(res, MXR_RESOLUTION, val);
572 }
573
574 val = MXR_GRP_WH_WIDTH(win_data->crtc_width);
575 val |= MXR_GRP_WH_HEIGHT(win_data->crtc_height);
576 val |= MXR_GRP_WH_H_SCALE(x_ratio);
577 val |= MXR_GRP_WH_V_SCALE(y_ratio);
578 mixer_reg_write(res, MXR_GRAPHIC_WH(win), val);
579
580 /* setup offsets in source image */
581 val = MXR_GRP_SXY_SX(src_x_offset);
582 val |= MXR_GRP_SXY_SY(src_y_offset);
583 mixer_reg_write(res, MXR_GRAPHIC_SXY(win), val);
584
585 /* setup offsets in display image */
586 val = MXR_GRP_DXY_DX(dst_x_offset);
587 val |= MXR_GRP_DXY_DY(dst_y_offset);
588 mixer_reg_write(res, MXR_GRAPHIC_DXY(win), val);
589
590 /* set buffer address to mixer */
591 mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr);
592
593 mixer_cfg_scan(ctx, win_data->mode_height);
594 mixer_cfg_rgb_fmt(ctx, win_data->mode_height);
595 mixer_cfg_layer(ctx, win, true);
596
597 /* layer update mandatory for mixer 16.0.33.0 */
598 if (ctx->mxr_ver == MXR_VER_16_0_33_0 ||
599 ctx->mxr_ver == MXR_VER_128_0_0_184)
600 mixer_layer_update(ctx);
601
602 mixer_run(ctx);
603
604 mixer_vsync_set_update(ctx, true);
605 spin_unlock_irqrestore(&res->reg_slock, flags);
606 }
607
608 static void vp_win_reset(struct mixer_context *ctx)
609 {
610 struct mixer_resources *res = &ctx->mixer_res;
611 int tries = 100;
612
613 vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING);
614 for (tries = 100; tries; --tries) {
615 /* waiting until VP_SRESET_PROCESSING is 0 */
616 if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING)
617 break;
618 usleep_range(10000, 12000);
619 }
620 WARN(tries == 0, "failed to reset Video Processor\n");
621 }
622
623 static void mixer_win_reset(struct mixer_context *ctx)
624 {
625 struct mixer_resources *res = &ctx->mixer_res;
626 unsigned long flags;
627 u32 val; /* value stored to register */
628
629 spin_lock_irqsave(&res->reg_slock, flags);
630 mixer_vsync_set_update(ctx, false);
631
632 mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK);
633
634 /* set output in RGB888 mode */
635 mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK);
636
637 /* 16 beat burst in DMA */
638 mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST,
639 MXR_STATUS_BURST_MASK);
640
641 /* setting default layer priority: layer1 > layer0 > video
642 * because typical usage scenario would be
643 * layer1 - OSD
644 * layer0 - framebuffer
645 * video - video overlay
646 */
647 val = MXR_LAYER_CFG_GRP1_VAL(3);
648 val |= MXR_LAYER_CFG_GRP0_VAL(2);
649 if (ctx->vp_enabled)
650 val |= MXR_LAYER_CFG_VP_VAL(1);
651 mixer_reg_write(res, MXR_LAYER_CFG, val);
652
653 /* setting background color */
654 mixer_reg_write(res, MXR_BG_COLOR0, 0x008080);
655 mixer_reg_write(res, MXR_BG_COLOR1, 0x008080);
656 mixer_reg_write(res, MXR_BG_COLOR2, 0x008080);
657
658 /* setting graphical layers */
659 val = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */
660 val |= MXR_GRP_CFG_WIN_BLEND_EN;
661 val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */
662
663 /* Don't blend layer 0 onto the mixer background */
664 mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val);
665
666 /* Blend layer 1 into layer 0 */
667 val |= MXR_GRP_CFG_BLEND_PRE_MUL;
668 val |= MXR_GRP_CFG_PIXEL_BLEND_EN;
669 mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val);
670
671 /* setting video layers */
672 val = MXR_GRP_CFG_ALPHA_VAL(0);
673 mixer_reg_write(res, MXR_VIDEO_CFG, val);
674
675 if (ctx->vp_enabled) {
676 /* configuration of Video Processor Registers */
677 vp_win_reset(ctx);
678 vp_default_filter(res);
679 }
680
681 /* disable all layers */
682 mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE);
683 mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE);
684 if (ctx->vp_enabled)
685 mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
686
687 mixer_vsync_set_update(ctx, true);
688 spin_unlock_irqrestore(&res->reg_slock, flags);
689 }
690
691 static irqreturn_t mixer_irq_handler(int irq, void *arg)
692 {
693 struct mixer_context *ctx = arg;
694 struct mixer_resources *res = &ctx->mixer_res;
695 u32 val, base, shadow;
696
697 spin_lock(&res->reg_slock);
698
699 /* read interrupt status for handling and clearing flags for VSYNC */
700 val = mixer_reg_read(res, MXR_INT_STATUS);
701
702 /* handling VSYNC */
703 if (val & MXR_INT_STATUS_VSYNC) {
704 /* interlace scan need to check shadow register */
705 if (ctx->interlace) {
706 base = mixer_reg_read(res, MXR_GRAPHIC_BASE(0));
707 shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
708 if (base != shadow)
709 goto out;
710
711 base = mixer_reg_read(res, MXR_GRAPHIC_BASE(1));
712 shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
713 if (base != shadow)
714 goto out;
715 }
716
717 drm_handle_vblank(ctx->drm_dev, ctx->pipe);
718 exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
719
720 /* set wait vsync event to zero and wake up queue. */
721 if (atomic_read(&ctx->wait_vsync_event)) {
722 atomic_set(&ctx->wait_vsync_event, 0);
723 wake_up(&ctx->wait_vsync_queue);
724 }
725 }
726
727 out:
728 /* clear interrupts */
729 if (~val & MXR_INT_EN_VSYNC) {
730 /* vsync interrupt use different bit for read and clear */
731 val &= ~MXR_INT_EN_VSYNC;
732 val |= MXR_INT_CLEAR_VSYNC;
733 }
734 mixer_reg_write(res, MXR_INT_STATUS, val);
735
736 spin_unlock(&res->reg_slock);
737
738 return IRQ_HANDLED;
739 }
740
741 static int mixer_resources_init(struct mixer_context *mixer_ctx)
742 {
743 struct device *dev = &mixer_ctx->pdev->dev;
744 struct mixer_resources *mixer_res = &mixer_ctx->mixer_res;
745 struct resource *res;
746 int ret;
747
748 spin_lock_init(&mixer_res->reg_slock);
749
750 mixer_res->mixer = devm_clk_get(dev, "mixer");
751 if (IS_ERR(mixer_res->mixer)) {
752 dev_err(dev, "failed to get clock 'mixer'\n");
753 return -ENODEV;
754 }
755
756 mixer_res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi");
757 if (IS_ERR(mixer_res->sclk_hdmi)) {
758 dev_err(dev, "failed to get clock 'sclk_hdmi'\n");
759 return -ENODEV;
760 }
761 res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 0);
762 if (res == NULL) {
763 dev_err(dev, "get memory resource failed.\n");
764 return -ENXIO;
765 }
766
767 mixer_res->mixer_regs = devm_ioremap(dev, res->start,
768 resource_size(res));
769 if (mixer_res->mixer_regs == NULL) {
770 dev_err(dev, "register mapping failed.\n");
771 return -ENXIO;
772 }
773
774 res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_IRQ, 0);
775 if (res == NULL) {
776 dev_err(dev, "get interrupt resource failed.\n");
777 return -ENXIO;
778 }
779
780 ret = devm_request_irq(dev, res->start, mixer_irq_handler,
781 0, "drm_mixer", mixer_ctx);
782 if (ret) {
783 dev_err(dev, "request interrupt failed.\n");
784 return ret;
785 }
786 mixer_res->irq = res->start;
787
788 return 0;
789 }
790
791 static int vp_resources_init(struct mixer_context *mixer_ctx)
792 {
793 struct device *dev = &mixer_ctx->pdev->dev;
794 struct mixer_resources *mixer_res = &mixer_ctx->mixer_res;
795 struct resource *res;
796
797 mixer_res->vp = devm_clk_get(dev, "vp");
798 if (IS_ERR(mixer_res->vp)) {
799 dev_err(dev, "failed to get clock 'vp'\n");
800 return -ENODEV;
801 }
802 mixer_res->sclk_mixer = devm_clk_get(dev, "sclk_mixer");
803 if (IS_ERR(mixer_res->sclk_mixer)) {
804 dev_err(dev, "failed to get clock 'sclk_mixer'\n");
805 return -ENODEV;
806 }
807 mixer_res->sclk_dac = devm_clk_get(dev, "sclk_dac");
808 if (IS_ERR(mixer_res->sclk_dac)) {
809 dev_err(dev, "failed to get clock 'sclk_dac'\n");
810 return -ENODEV;
811 }
812
813 if (mixer_res->sclk_hdmi)
814 clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi);
815
816 res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 1);
817 if (res == NULL) {
818 dev_err(dev, "get memory resource failed.\n");
819 return -ENXIO;
820 }
821
822 mixer_res->vp_regs = devm_ioremap(dev, res->start,
823 resource_size(res));
824 if (mixer_res->vp_regs == NULL) {
825 dev_err(dev, "register mapping failed.\n");
826 return -ENXIO;
827 }
828
829 return 0;
830 }
831
832 static int mixer_initialize(struct exynos_drm_manager *mgr,
833 struct drm_device *drm_dev, int pipe)
834 {
835 int ret;
836 struct mixer_context *mixer_ctx = mgr->ctx;
837
838 mixer_ctx->drm_dev = drm_dev;
839 mixer_ctx->pipe = pipe;
840
841 /* acquire resources: regs, irqs, clocks */
842 ret = mixer_resources_init(mixer_ctx);
843 if (ret) {
844 DRM_ERROR("mixer_resources_init failed ret=%d\n", ret);
845 return ret;
846 }
847
848 if (mixer_ctx->vp_enabled) {
849 /* acquire vp resources: regs, irqs, clocks */
850 ret = vp_resources_init(mixer_ctx);
851 if (ret) {
852 DRM_ERROR("vp_resources_init failed ret=%d\n", ret);
853 return ret;
854 }
855 }
856
857 if (!is_drm_iommu_supported(mixer_ctx->drm_dev))
858 return 0;
859
860 return drm_iommu_attach_device(mixer_ctx->drm_dev, mixer_ctx->dev);
861 }
862
863 static void mixer_mgr_remove(struct exynos_drm_manager *mgr)
864 {
865 struct mixer_context *mixer_ctx = mgr->ctx;
866
867 if (is_drm_iommu_supported(mixer_ctx->drm_dev))
868 drm_iommu_detach_device(mixer_ctx->drm_dev, mixer_ctx->dev);
869 }
870
871 static int mixer_enable_vblank(struct exynos_drm_manager *mgr)
872 {
873 struct mixer_context *mixer_ctx = mgr->ctx;
874 struct mixer_resources *res = &mixer_ctx->mixer_res;
875
876 if (!mixer_ctx->powered) {
877 mixer_ctx->int_en |= MXR_INT_EN_VSYNC;
878 return 0;
879 }
880
881 /* enable vsync interrupt */
882 mixer_reg_writemask(res, MXR_INT_EN, MXR_INT_EN_VSYNC,
883 MXR_INT_EN_VSYNC);
884
885 return 0;
886 }
887
888 static void mixer_disable_vblank(struct exynos_drm_manager *mgr)
889 {
890 struct mixer_context *mixer_ctx = mgr->ctx;
891 struct mixer_resources *res = &mixer_ctx->mixer_res;
892
893 /* disable vsync interrupt */
894 mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC);
895 }
896
897 static void mixer_win_mode_set(struct exynos_drm_manager *mgr,
898 struct exynos_drm_overlay *overlay)
899 {
900 struct mixer_context *mixer_ctx = mgr->ctx;
901 struct hdmi_win_data *win_data;
902 int win;
903
904 if (!overlay) {
905 DRM_ERROR("overlay is NULL\n");
906 return;
907 }
908
909 DRM_DEBUG_KMS("set [%d]x[%d] at (%d,%d) to [%d]x[%d] at (%d,%d)\n",
910 overlay->fb_width, overlay->fb_height,
911 overlay->fb_x, overlay->fb_y,
912 overlay->crtc_width, overlay->crtc_height,
913 overlay->crtc_x, overlay->crtc_y);
914
915 win = overlay->zpos;
916 if (win == DEFAULT_ZPOS)
917 win = MIXER_DEFAULT_WIN;
918
919 if (win < 0 || win >= MIXER_WIN_NR) {
920 DRM_ERROR("mixer window[%d] is wrong\n", win);
921 return;
922 }
923
924 win_data = &mixer_ctx->win_data[win];
925
926 win_data->dma_addr = overlay->dma_addr[0];
927 win_data->chroma_dma_addr = overlay->dma_addr[1];
928 win_data->pixel_format = overlay->pixel_format;
929 win_data->bpp = overlay->bpp;
930
931 win_data->crtc_x = overlay->crtc_x;
932 win_data->crtc_y = overlay->crtc_y;
933 win_data->crtc_width = overlay->crtc_width;
934 win_data->crtc_height = overlay->crtc_height;
935
936 win_data->fb_x = overlay->fb_x;
937 win_data->fb_y = overlay->fb_y;
938 win_data->fb_width = overlay->fb_width;
939 win_data->fb_height = overlay->fb_height;
940 win_data->src_width = overlay->src_width;
941 win_data->src_height = overlay->src_height;
942
943 win_data->mode_width = overlay->mode_width;
944 win_data->mode_height = overlay->mode_height;
945
946 win_data->scan_flags = overlay->scan_flag;
947 }
948
949 static void mixer_win_commit(struct exynos_drm_manager *mgr, int zpos)
950 {
951 struct mixer_context *mixer_ctx = mgr->ctx;
952 int win = zpos == DEFAULT_ZPOS ? MIXER_DEFAULT_WIN : zpos;
953
954 DRM_DEBUG_KMS("win: %d\n", win);
955
956 mutex_lock(&mixer_ctx->mixer_mutex);
957 if (!mixer_ctx->powered) {
958 mutex_unlock(&mixer_ctx->mixer_mutex);
959 return;
960 }
961 mutex_unlock(&mixer_ctx->mixer_mutex);
962
963 if (win > 1 && mixer_ctx->vp_enabled)
964 vp_video_buffer(mixer_ctx, win);
965 else
966 mixer_graph_buffer(mixer_ctx, win);
967
968 mixer_ctx->win_data[win].enabled = true;
969 }
970
971 static void mixer_win_disable(struct exynos_drm_manager *mgr, int zpos)
972 {
973 struct mixer_context *mixer_ctx = mgr->ctx;
974 struct mixer_resources *res = &mixer_ctx->mixer_res;
975 int win = zpos == DEFAULT_ZPOS ? MIXER_DEFAULT_WIN : zpos;
976 unsigned long flags;
977
978 DRM_DEBUG_KMS("win: %d\n", win);
979
980 mutex_lock(&mixer_ctx->mixer_mutex);
981 if (!mixer_ctx->powered) {
982 mutex_unlock(&mixer_ctx->mixer_mutex);
983 mixer_ctx->win_data[win].resume = false;
984 return;
985 }
986 mutex_unlock(&mixer_ctx->mixer_mutex);
987
988 spin_lock_irqsave(&res->reg_slock, flags);
989 mixer_vsync_set_update(mixer_ctx, false);
990
991 mixer_cfg_layer(mixer_ctx, win, false);
992
993 mixer_vsync_set_update(mixer_ctx, true);
994 spin_unlock_irqrestore(&res->reg_slock, flags);
995
996 mixer_ctx->win_data[win].enabled = false;
997 }
998
999 static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr)
1000 {
1001 struct mixer_context *mixer_ctx = mgr->ctx;
1002
1003 mutex_lock(&mixer_ctx->mixer_mutex);
1004 if (!mixer_ctx->powered) {
1005 mutex_unlock(&mixer_ctx->mixer_mutex);
1006 return;
1007 }
1008 mutex_unlock(&mixer_ctx->mixer_mutex);
1009
1010 atomic_set(&mixer_ctx->wait_vsync_event, 1);
1011
1012 /*
1013 * wait for MIXER to signal VSYNC interrupt or return after
1014 * timeout which is set to 50ms (refresh rate of 20).
1015 */
1016 if (!wait_event_timeout(mixer_ctx->wait_vsync_queue,
1017 !atomic_read(&mixer_ctx->wait_vsync_event),
1018 HZ/20))
1019 DRM_DEBUG_KMS("vblank wait timed out.\n");
1020 }
1021
1022 static void mixer_window_suspend(struct exynos_drm_manager *mgr)
1023 {
1024 struct mixer_context *ctx = mgr->ctx;
1025 struct hdmi_win_data *win_data;
1026 int i;
1027
1028 for (i = 0; i < MIXER_WIN_NR; i++) {
1029 win_data = &ctx->win_data[i];
1030 win_data->resume = win_data->enabled;
1031 mixer_win_disable(mgr, i);
1032 }
1033 mixer_wait_for_vblank(mgr);
1034 }
1035
1036 static void mixer_window_resume(struct exynos_drm_manager *mgr)
1037 {
1038 struct mixer_context *ctx = mgr->ctx;
1039 struct hdmi_win_data *win_data;
1040 int i;
1041
1042 for (i = 0; i < MIXER_WIN_NR; i++) {
1043 win_data = &ctx->win_data[i];
1044 win_data->enabled = win_data->resume;
1045 win_data->resume = false;
1046 if (win_data->enabled)
1047 mixer_win_commit(mgr, i);
1048 }
1049 }
1050
1051 static void mixer_poweron(struct exynos_drm_manager *mgr)
1052 {
1053 struct mixer_context *ctx = mgr->ctx;
1054 struct mixer_resources *res = &ctx->mixer_res;
1055
1056 mutex_lock(&ctx->mixer_mutex);
1057 if (ctx->powered) {
1058 mutex_unlock(&ctx->mixer_mutex);
1059 return;
1060 }
1061 ctx->powered = true;
1062 mutex_unlock(&ctx->mixer_mutex);
1063
1064 pm_runtime_get_sync(ctx->dev);
1065
1066 clk_prepare_enable(res->mixer);
1067 if (ctx->vp_enabled) {
1068 clk_prepare_enable(res->vp);
1069 clk_prepare_enable(res->sclk_mixer);
1070 }
1071
1072 mixer_reg_write(res, MXR_INT_EN, ctx->int_en);
1073 mixer_win_reset(ctx);
1074
1075 mixer_window_resume(mgr);
1076 }
1077
1078 static void mixer_poweroff(struct exynos_drm_manager *mgr)
1079 {
1080 struct mixer_context *ctx = mgr->ctx;
1081 struct mixer_resources *res = &ctx->mixer_res;
1082
1083 mutex_lock(&ctx->mixer_mutex);
1084 if (!ctx->powered)
1085 goto out;
1086 mutex_unlock(&ctx->mixer_mutex);
1087
1088 mixer_window_suspend(mgr);
1089
1090 ctx->int_en = mixer_reg_read(res, MXR_INT_EN);
1091
1092 clk_disable_unprepare(res->mixer);
1093 if (ctx->vp_enabled) {
1094 clk_disable_unprepare(res->vp);
1095 clk_disable_unprepare(res->sclk_mixer);
1096 }
1097
1098 pm_runtime_put_sync(ctx->dev);
1099
1100 mutex_lock(&ctx->mixer_mutex);
1101 ctx->powered = false;
1102
1103 out:
1104 mutex_unlock(&ctx->mixer_mutex);
1105 }
1106
1107 static void mixer_dpms(struct exynos_drm_manager *mgr, int mode)
1108 {
1109 switch (mode) {
1110 case DRM_MODE_DPMS_ON:
1111 mixer_poweron(mgr);
1112 break;
1113 case DRM_MODE_DPMS_STANDBY:
1114 case DRM_MODE_DPMS_SUSPEND:
1115 case DRM_MODE_DPMS_OFF:
1116 mixer_poweroff(mgr);
1117 break;
1118 default:
1119 DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
1120 break;
1121 }
1122 }
1123
1124 /* Only valid for Mixer version 16.0.33.0 */
1125 int mixer_check_mode(struct drm_display_mode *mode)
1126 {
1127 u32 w, h;
1128
1129 w = mode->hdisplay;
1130 h = mode->vdisplay;
1131
1132 DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d\n",
1133 mode->hdisplay, mode->vdisplay, mode->vrefresh,
1134 (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0);
1135
1136 if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) ||
1137 (w >= 1024 && w <= 1280 && h >= 576 && h <= 720) ||
1138 (w >= 1664 && w <= 1920 && h >= 936 && h <= 1080))
1139 return 0;
1140
1141 return -EINVAL;
1142 }
1143
1144 static struct exynos_drm_manager_ops mixer_manager_ops = {
1145 .initialize = mixer_initialize,
1146 .remove = mixer_mgr_remove,
1147 .dpms = mixer_dpms,
1148 .enable_vblank = mixer_enable_vblank,
1149 .disable_vblank = mixer_disable_vblank,
1150 .wait_for_vblank = mixer_wait_for_vblank,
1151 .win_mode_set = mixer_win_mode_set,
1152 .win_commit = mixer_win_commit,
1153 .win_disable = mixer_win_disable,
1154 };
1155
1156 static struct exynos_drm_manager mixer_manager = {
1157 .type = EXYNOS_DISPLAY_TYPE_HDMI,
1158 .ops = &mixer_manager_ops,
1159 };
1160
1161 static struct mixer_drv_data exynos5420_mxr_drv_data = {
1162 .version = MXR_VER_128_0_0_184,
1163 .is_vp_enabled = 0,
1164 };
1165
1166 static struct mixer_drv_data exynos5250_mxr_drv_data = {
1167 .version = MXR_VER_16_0_33_0,
1168 .is_vp_enabled = 0,
1169 };
1170
1171 static struct mixer_drv_data exynos4210_mxr_drv_data = {
1172 .version = MXR_VER_0_0_0_16,
1173 .is_vp_enabled = 1,
1174 };
1175
1176 static struct platform_device_id mixer_driver_types[] = {
1177 {
1178 .name = "s5p-mixer",
1179 .driver_data = (unsigned long)&exynos4210_mxr_drv_data,
1180 }, {
1181 .name = "exynos5-mixer",
1182 .driver_data = (unsigned long)&exynos5250_mxr_drv_data,
1183 }, {
1184 /* end node */
1185 }
1186 };
1187
1188 static struct of_device_id mixer_match_types[] = {
1189 {
1190 .compatible = "samsung,exynos5-mixer",
1191 .data = &exynos5250_mxr_drv_data,
1192 }, {
1193 .compatible = "samsung,exynos5250-mixer",
1194 .data = &exynos5250_mxr_drv_data,
1195 }, {
1196 .compatible = "samsung,exynos5420-mixer",
1197 .data = &exynos5420_mxr_drv_data,
1198 }, {
1199 /* end node */
1200 }
1201 };
1202
1203 static int mixer_probe(struct platform_device *pdev)
1204 {
1205 struct device *dev = &pdev->dev;
1206 struct mixer_context *ctx;
1207 struct mixer_drv_data *drv;
1208
1209 dev_info(dev, "probe start\n");
1210
1211 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
1212 if (!ctx) {
1213 DRM_ERROR("failed to alloc mixer context.\n");
1214 return -ENOMEM;
1215 }
1216
1217 mutex_init(&ctx->mixer_mutex);
1218
1219 if (dev->of_node) {
1220 const struct of_device_id *match;
1221 match = of_match_node(mixer_match_types, dev->of_node);
1222 drv = (struct mixer_drv_data *)match->data;
1223 } else {
1224 drv = (struct mixer_drv_data *)
1225 platform_get_device_id(pdev)->driver_data;
1226 }
1227
1228 ctx->pdev = pdev;
1229 ctx->dev = dev;
1230 ctx->vp_enabled = drv->is_vp_enabled;
1231 ctx->mxr_ver = drv->version;
1232 init_waitqueue_head(&ctx->wait_vsync_queue);
1233 atomic_set(&ctx->wait_vsync_event, 0);
1234
1235 mixer_manager.ctx = ctx;
1236 platform_set_drvdata(pdev, &mixer_manager);
1237 exynos_drm_manager_register(&mixer_manager);
1238
1239 pm_runtime_enable(dev);
1240
1241 return 0;
1242 }
1243
1244 static int mixer_remove(struct platform_device *pdev)
1245 {
1246 dev_info(&pdev->dev, "remove successful\n");
1247
1248 pm_runtime_disable(&pdev->dev);
1249
1250 return 0;
1251 }
1252
1253 struct platform_driver mixer_driver = {
1254 .driver = {
1255 .name = "exynos-mixer",
1256 .owner = THIS_MODULE,
1257 .of_match_table = mixer_match_types,
1258 },
1259 .probe = mixer_probe,
1260 .remove = mixer_remove,
1261 .id_table = mixer_driver_types,
1262 };
Linux kernel - Deliverables
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