Commit | Line | Data |
---|---|---|
d8f4a9ed TR |
1 | /* |
2 | * Copyright (C) 2012 Avionic Design GmbH | |
3 | * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | */ | |
9 | ||
10 | #include <linux/clk.h> | |
9eb9b220 | 11 | #include <linux/debugfs.h> |
df06b759 | 12 | #include <linux/iommu.h> |
ca48080a | 13 | #include <linux/reset.h> |
d8f4a9ed | 14 | |
9c012700 TR |
15 | #include <soc/tegra/pmc.h> |
16 | ||
de2ba664 AM |
17 | #include "dc.h" |
18 | #include "drm.h" | |
19 | #include "gem.h" | |
d8f4a9ed | 20 | |
3cb9ae4f DV |
21 | #include <drm/drm_plane_helper.h> |
22 | ||
8620fc62 | 23 | struct tegra_dc_soc_info { |
42d0659b | 24 | bool supports_border_color; |
8620fc62 | 25 | bool supports_interlacing; |
e687651b | 26 | bool supports_cursor; |
c134f019 | 27 | bool supports_block_linear; |
d1f3e1e0 | 28 | unsigned int pitch_align; |
9c012700 | 29 | bool has_powergate; |
8620fc62 TR |
30 | }; |
31 | ||
f34bc787 TR |
32 | struct tegra_plane { |
33 | struct drm_plane base; | |
34 | unsigned int index; | |
d8f4a9ed TR |
35 | }; |
36 | ||
f34bc787 TR |
37 | static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane) |
38 | { | |
39 | return container_of(plane, struct tegra_plane, base); | |
40 | } | |
41 | ||
205d48ed TR |
42 | static void tegra_dc_window_commit(struct tegra_dc *dc, unsigned int index) |
43 | { | |
44 | u32 value = WIN_A_ACT_REQ << index; | |
45 | ||
46 | tegra_dc_writel(dc, value << 8, DC_CMD_STATE_CONTROL); | |
47 | tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); | |
48 | } | |
49 | ||
50 | static void tegra_dc_cursor_commit(struct tegra_dc *dc) | |
51 | { | |
52 | tegra_dc_writel(dc, CURSOR_ACT_REQ << 8, DC_CMD_STATE_CONTROL); | |
53 | tegra_dc_writel(dc, CURSOR_ACT_REQ, DC_CMD_STATE_CONTROL); | |
54 | } | |
55 | ||
86df256f TR |
56 | /* |
57 | * Reads the active copy of a register. This takes the dc->lock spinlock to | |
58 | * prevent races with the VBLANK processing which also needs access to the | |
59 | * active copy of some registers. | |
60 | */ | |
61 | static u32 tegra_dc_readl_active(struct tegra_dc *dc, unsigned long offset) | |
62 | { | |
63 | unsigned long flags; | |
64 | u32 value; | |
65 | ||
66 | spin_lock_irqsave(&dc->lock, flags); | |
67 | ||
68 | tegra_dc_writel(dc, READ_MUX, DC_CMD_STATE_ACCESS); | |
69 | value = tegra_dc_readl(dc, offset); | |
70 | tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS); | |
71 | ||
72 | spin_unlock_irqrestore(&dc->lock, flags); | |
73 | return value; | |
74 | } | |
75 | ||
d700ba7a TR |
76 | /* |
77 | * Double-buffered registers have two copies: ASSEMBLY and ACTIVE. When the | |
78 | * *_ACT_REQ bits are set the ASSEMBLY copy is latched into the ACTIVE copy. | |
79 | * Latching happens mmediately if the display controller is in STOP mode or | |
80 | * on the next frame boundary otherwise. | |
81 | * | |
82 | * Triple-buffered registers have three copies: ASSEMBLY, ARM and ACTIVE. The | |
83 | * ASSEMBLY copy is latched into the ARM copy immediately after *_UPDATE bits | |
84 | * are written. When the *_ACT_REQ bits are written, the ARM copy is latched | |
85 | * into the ACTIVE copy, either immediately if the display controller is in | |
86 | * STOP mode, or at the next frame boundary otherwise. | |
87 | */ | |
62b9e063 | 88 | void tegra_dc_commit(struct tegra_dc *dc) |
205d48ed TR |
89 | { |
90 | tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL); | |
91 | tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); | |
92 | } | |
93 | ||
10288eea TR |
94 | static unsigned int tegra_dc_format(uint32_t format, uint32_t *swap) |
95 | { | |
96 | /* assume no swapping of fetched data */ | |
97 | if (swap) | |
98 | *swap = BYTE_SWAP_NOSWAP; | |
99 | ||
100 | switch (format) { | |
101 | case DRM_FORMAT_XBGR8888: | |
102 | return WIN_COLOR_DEPTH_R8G8B8A8; | |
103 | ||
104 | case DRM_FORMAT_XRGB8888: | |
105 | return WIN_COLOR_DEPTH_B8G8R8A8; | |
106 | ||
107 | case DRM_FORMAT_RGB565: | |
108 | return WIN_COLOR_DEPTH_B5G6R5; | |
109 | ||
110 | case DRM_FORMAT_UYVY: | |
111 | return WIN_COLOR_DEPTH_YCbCr422; | |
112 | ||
113 | case DRM_FORMAT_YUYV: | |
114 | if (swap) | |
115 | *swap = BYTE_SWAP_SWAP2; | |
116 | ||
117 | return WIN_COLOR_DEPTH_YCbCr422; | |
118 | ||
119 | case DRM_FORMAT_YUV420: | |
120 | return WIN_COLOR_DEPTH_YCbCr420P; | |
121 | ||
122 | case DRM_FORMAT_YUV422: | |
123 | return WIN_COLOR_DEPTH_YCbCr422P; | |
124 | ||
125 | default: | |
126 | break; | |
127 | } | |
128 | ||
129 | WARN(1, "unsupported pixel format %u, using default\n", format); | |
130 | return WIN_COLOR_DEPTH_B8G8R8A8; | |
131 | } | |
132 | ||
133 | static bool tegra_dc_format_is_yuv(unsigned int format, bool *planar) | |
134 | { | |
135 | switch (format) { | |
136 | case WIN_COLOR_DEPTH_YCbCr422: | |
137 | case WIN_COLOR_DEPTH_YUV422: | |
138 | if (planar) | |
139 | *planar = false; | |
140 | ||
141 | return true; | |
142 | ||
143 | case WIN_COLOR_DEPTH_YCbCr420P: | |
144 | case WIN_COLOR_DEPTH_YUV420P: | |
145 | case WIN_COLOR_DEPTH_YCbCr422P: | |
146 | case WIN_COLOR_DEPTH_YUV422P: | |
147 | case WIN_COLOR_DEPTH_YCbCr422R: | |
148 | case WIN_COLOR_DEPTH_YUV422R: | |
149 | case WIN_COLOR_DEPTH_YCbCr422RA: | |
150 | case WIN_COLOR_DEPTH_YUV422RA: | |
151 | if (planar) | |
152 | *planar = true; | |
153 | ||
154 | return true; | |
155 | } | |
156 | ||
fb35c6b6 TR |
157 | if (planar) |
158 | *planar = false; | |
159 | ||
10288eea TR |
160 | return false; |
161 | } | |
162 | ||
163 | static inline u32 compute_dda_inc(unsigned int in, unsigned int out, bool v, | |
164 | unsigned int bpp) | |
165 | { | |
166 | fixed20_12 outf = dfixed_init(out); | |
167 | fixed20_12 inf = dfixed_init(in); | |
168 | u32 dda_inc; | |
169 | int max; | |
170 | ||
171 | if (v) | |
172 | max = 15; | |
173 | else { | |
174 | switch (bpp) { | |
175 | case 2: | |
176 | max = 8; | |
177 | break; | |
178 | ||
179 | default: | |
180 | WARN_ON_ONCE(1); | |
181 | /* fallthrough */ | |
182 | case 4: | |
183 | max = 4; | |
184 | break; | |
185 | } | |
186 | } | |
187 | ||
188 | outf.full = max_t(u32, outf.full - dfixed_const(1), dfixed_const(1)); | |
189 | inf.full -= dfixed_const(1); | |
190 | ||
191 | dda_inc = dfixed_div(inf, outf); | |
192 | dda_inc = min_t(u32, dda_inc, dfixed_const(max)); | |
193 | ||
194 | return dda_inc; | |
195 | } | |
196 | ||
197 | static inline u32 compute_initial_dda(unsigned int in) | |
198 | { | |
199 | fixed20_12 inf = dfixed_init(in); | |
200 | return dfixed_frac(inf); | |
201 | } | |
202 | ||
203 | static int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index, | |
204 | const struct tegra_dc_window *window) | |
205 | { | |
206 | unsigned h_offset, v_offset, h_size, v_size, h_dda, v_dda, bpp; | |
93396d0f | 207 | unsigned long value, flags; |
10288eea TR |
208 | bool yuv, planar; |
209 | ||
210 | /* | |
211 | * For YUV planar modes, the number of bytes per pixel takes into | |
212 | * account only the luma component and therefore is 1. | |
213 | */ | |
214 | yuv = tegra_dc_format_is_yuv(window->format, &planar); | |
215 | if (!yuv) | |
216 | bpp = window->bits_per_pixel / 8; | |
217 | else | |
218 | bpp = planar ? 1 : 2; | |
219 | ||
93396d0f SP |
220 | spin_lock_irqsave(&dc->lock, flags); |
221 | ||
10288eea TR |
222 | value = WINDOW_A_SELECT << index; |
223 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); | |
224 | ||
225 | tegra_dc_writel(dc, window->format, DC_WIN_COLOR_DEPTH); | |
226 | tegra_dc_writel(dc, window->swap, DC_WIN_BYTE_SWAP); | |
227 | ||
228 | value = V_POSITION(window->dst.y) | H_POSITION(window->dst.x); | |
229 | tegra_dc_writel(dc, value, DC_WIN_POSITION); | |
230 | ||
231 | value = V_SIZE(window->dst.h) | H_SIZE(window->dst.w); | |
232 | tegra_dc_writel(dc, value, DC_WIN_SIZE); | |
233 | ||
234 | h_offset = window->src.x * bpp; | |
235 | v_offset = window->src.y; | |
236 | h_size = window->src.w * bpp; | |
237 | v_size = window->src.h; | |
238 | ||
239 | value = V_PRESCALED_SIZE(v_size) | H_PRESCALED_SIZE(h_size); | |
240 | tegra_dc_writel(dc, value, DC_WIN_PRESCALED_SIZE); | |
241 | ||
242 | /* | |
243 | * For DDA computations the number of bytes per pixel for YUV planar | |
244 | * modes needs to take into account all Y, U and V components. | |
245 | */ | |
246 | if (yuv && planar) | |
247 | bpp = 2; | |
248 | ||
249 | h_dda = compute_dda_inc(window->src.w, window->dst.w, false, bpp); | |
250 | v_dda = compute_dda_inc(window->src.h, window->dst.h, true, bpp); | |
251 | ||
252 | value = V_DDA_INC(v_dda) | H_DDA_INC(h_dda); | |
253 | tegra_dc_writel(dc, value, DC_WIN_DDA_INC); | |
254 | ||
255 | h_dda = compute_initial_dda(window->src.x); | |
256 | v_dda = compute_initial_dda(window->src.y); | |
257 | ||
258 | tegra_dc_writel(dc, h_dda, DC_WIN_H_INITIAL_DDA); | |
259 | tegra_dc_writel(dc, v_dda, DC_WIN_V_INITIAL_DDA); | |
260 | ||
261 | tegra_dc_writel(dc, 0, DC_WIN_UV_BUF_STRIDE); | |
262 | tegra_dc_writel(dc, 0, DC_WIN_BUF_STRIDE); | |
263 | ||
264 | tegra_dc_writel(dc, window->base[0], DC_WINBUF_START_ADDR); | |
265 | ||
266 | if (yuv && planar) { | |
267 | tegra_dc_writel(dc, window->base[1], DC_WINBUF_START_ADDR_U); | |
268 | tegra_dc_writel(dc, window->base[2], DC_WINBUF_START_ADDR_V); | |
269 | value = window->stride[1] << 16 | window->stride[0]; | |
270 | tegra_dc_writel(dc, value, DC_WIN_LINE_STRIDE); | |
271 | } else { | |
272 | tegra_dc_writel(dc, window->stride[0], DC_WIN_LINE_STRIDE); | |
273 | } | |
274 | ||
275 | if (window->bottom_up) | |
276 | v_offset += window->src.h - 1; | |
277 | ||
278 | tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET); | |
279 | tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET); | |
280 | ||
c134f019 TR |
281 | if (dc->soc->supports_block_linear) { |
282 | unsigned long height = window->tiling.value; | |
283 | ||
284 | switch (window->tiling.mode) { | |
285 | case TEGRA_BO_TILING_MODE_PITCH: | |
286 | value = DC_WINBUF_SURFACE_KIND_PITCH; | |
287 | break; | |
288 | ||
289 | case TEGRA_BO_TILING_MODE_TILED: | |
290 | value = DC_WINBUF_SURFACE_KIND_TILED; | |
291 | break; | |
292 | ||
293 | case TEGRA_BO_TILING_MODE_BLOCK: | |
294 | value = DC_WINBUF_SURFACE_KIND_BLOCK_HEIGHT(height) | | |
295 | DC_WINBUF_SURFACE_KIND_BLOCK; | |
296 | break; | |
297 | } | |
298 | ||
299 | tegra_dc_writel(dc, value, DC_WINBUF_SURFACE_KIND); | |
10288eea | 300 | } else { |
c134f019 TR |
301 | switch (window->tiling.mode) { |
302 | case TEGRA_BO_TILING_MODE_PITCH: | |
303 | value = DC_WIN_BUFFER_ADDR_MODE_LINEAR_UV | | |
304 | DC_WIN_BUFFER_ADDR_MODE_LINEAR; | |
305 | break; | |
10288eea | 306 | |
c134f019 TR |
307 | case TEGRA_BO_TILING_MODE_TILED: |
308 | value = DC_WIN_BUFFER_ADDR_MODE_TILE_UV | | |
309 | DC_WIN_BUFFER_ADDR_MODE_TILE; | |
310 | break; | |
311 | ||
312 | case TEGRA_BO_TILING_MODE_BLOCK: | |
313 | DRM_ERROR("hardware doesn't support block linear mode\n"); | |
93396d0f | 314 | spin_unlock_irqrestore(&dc->lock, flags); |
c134f019 TR |
315 | return -EINVAL; |
316 | } | |
317 | ||
318 | tegra_dc_writel(dc, value, DC_WIN_BUFFER_ADDR_MODE); | |
319 | } | |
10288eea TR |
320 | |
321 | value = WIN_ENABLE; | |
322 | ||
323 | if (yuv) { | |
324 | /* setup default colorspace conversion coefficients */ | |
325 | tegra_dc_writel(dc, 0x00f0, DC_WIN_CSC_YOF); | |
326 | tegra_dc_writel(dc, 0x012a, DC_WIN_CSC_KYRGB); | |
327 | tegra_dc_writel(dc, 0x0000, DC_WIN_CSC_KUR); | |
328 | tegra_dc_writel(dc, 0x0198, DC_WIN_CSC_KVR); | |
329 | tegra_dc_writel(dc, 0x039b, DC_WIN_CSC_KUG); | |
330 | tegra_dc_writel(dc, 0x032f, DC_WIN_CSC_KVG); | |
331 | tegra_dc_writel(dc, 0x0204, DC_WIN_CSC_KUB); | |
332 | tegra_dc_writel(dc, 0x0000, DC_WIN_CSC_KVB); | |
333 | ||
334 | value |= CSC_ENABLE; | |
335 | } else if (window->bits_per_pixel < 24) { | |
336 | value |= COLOR_EXPAND; | |
337 | } | |
338 | ||
339 | if (window->bottom_up) | |
340 | value |= V_DIRECTION; | |
341 | ||
342 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); | |
343 | ||
344 | /* | |
345 | * Disable blending and assume Window A is the bottom-most window, | |
346 | * Window C is the top-most window and Window B is in the middle. | |
347 | */ | |
348 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_NOKEY); | |
349 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_1WIN); | |
350 | ||
351 | switch (index) { | |
352 | case 0: | |
353 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_X); | |
354 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_Y); | |
355 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_3WIN_XY); | |
356 | break; | |
357 | ||
358 | case 1: | |
359 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_X); | |
360 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_Y); | |
361 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_3WIN_XY); | |
362 | break; | |
363 | ||
364 | case 2: | |
365 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_X); | |
366 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_Y); | |
367 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_3WIN_XY); | |
368 | break; | |
369 | } | |
370 | ||
205d48ed | 371 | tegra_dc_window_commit(dc, index); |
10288eea | 372 | |
93396d0f SP |
373 | spin_unlock_irqrestore(&dc->lock, flags); |
374 | ||
10288eea TR |
375 | return 0; |
376 | } | |
377 | ||
c7679306 TR |
378 | static int tegra_window_plane_disable(struct drm_plane *plane) |
379 | { | |
380 | struct tegra_dc *dc = to_tegra_dc(plane->crtc); | |
381 | struct tegra_plane *p = to_tegra_plane(plane); | |
93396d0f | 382 | unsigned long flags; |
c7679306 TR |
383 | u32 value; |
384 | ||
385 | if (!plane->crtc) | |
386 | return 0; | |
387 | ||
93396d0f SP |
388 | spin_lock_irqsave(&dc->lock, flags); |
389 | ||
c7679306 TR |
390 | value = WINDOW_A_SELECT << p->index; |
391 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); | |
392 | ||
393 | value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); | |
394 | value &= ~WIN_ENABLE; | |
395 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); | |
396 | ||
397 | tegra_dc_window_commit(dc, p->index); | |
398 | ||
93396d0f SP |
399 | spin_unlock_irqrestore(&dc->lock, flags); |
400 | ||
c7679306 TR |
401 | return 0; |
402 | } | |
403 | ||
404 | static void tegra_plane_destroy(struct drm_plane *plane) | |
405 | { | |
406 | struct tegra_plane *p = to_tegra_plane(plane); | |
407 | ||
408 | drm_plane_cleanup(plane); | |
409 | kfree(p); | |
410 | } | |
411 | ||
412 | static const u32 tegra_primary_plane_formats[] = { | |
413 | DRM_FORMAT_XBGR8888, | |
414 | DRM_FORMAT_XRGB8888, | |
415 | DRM_FORMAT_RGB565, | |
416 | }; | |
417 | ||
418 | static int tegra_primary_plane_update(struct drm_plane *plane, | |
419 | struct drm_crtc *crtc, | |
420 | struct drm_framebuffer *fb, int crtc_x, | |
421 | int crtc_y, unsigned int crtc_w, | |
422 | unsigned int crtc_h, uint32_t src_x, | |
423 | uint32_t src_y, uint32_t src_w, | |
424 | uint32_t src_h) | |
425 | { | |
426 | struct tegra_bo *bo = tegra_fb_get_plane(fb, 0); | |
427 | struct tegra_plane *p = to_tegra_plane(plane); | |
428 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
429 | struct tegra_dc_window window; | |
430 | int err; | |
431 | ||
432 | memset(&window, 0, sizeof(window)); | |
433 | window.src.x = src_x >> 16; | |
434 | window.src.y = src_y >> 16; | |
435 | window.src.w = src_w >> 16; | |
436 | window.src.h = src_h >> 16; | |
437 | window.dst.x = crtc_x; | |
438 | window.dst.y = crtc_y; | |
439 | window.dst.w = crtc_w; | |
440 | window.dst.h = crtc_h; | |
441 | window.format = tegra_dc_format(fb->pixel_format, &window.swap); | |
442 | window.bits_per_pixel = fb->bits_per_pixel; | |
443 | window.bottom_up = tegra_fb_is_bottom_up(fb); | |
444 | ||
445 | err = tegra_fb_get_tiling(fb, &window.tiling); | |
446 | if (err < 0) | |
447 | return err; | |
448 | ||
449 | window.base[0] = bo->paddr + fb->offsets[0]; | |
450 | window.stride[0] = fb->pitches[0]; | |
451 | ||
452 | err = tegra_dc_setup_window(dc, p->index, &window); | |
453 | if (err < 0) | |
454 | return err; | |
10288eea TR |
455 | |
456 | return 0; | |
457 | } | |
458 | ||
c7679306 TR |
459 | static void tegra_primary_plane_destroy(struct drm_plane *plane) |
460 | { | |
461 | tegra_window_plane_disable(plane); | |
462 | tegra_plane_destroy(plane); | |
463 | } | |
464 | ||
465 | static const struct drm_plane_funcs tegra_primary_plane_funcs = { | |
466 | .update_plane = tegra_primary_plane_update, | |
467 | .disable_plane = tegra_window_plane_disable, | |
468 | .destroy = tegra_primary_plane_destroy, | |
469 | }; | |
470 | ||
471 | static struct drm_plane *tegra_dc_primary_plane_create(struct drm_device *drm, | |
472 | struct tegra_dc *dc) | |
473 | { | |
518e6227 TR |
474 | /* |
475 | * Ideally this would use drm_crtc_mask(), but that would require the | |
476 | * CRTC to already be in the mode_config's list of CRTCs. However, it | |
477 | * will only be added to that list in the drm_crtc_init_with_planes() | |
478 | * (in tegra_dc_init()), which in turn requires registration of these | |
479 | * planes. So we have ourselves a nice little chicken and egg problem | |
480 | * here. | |
481 | * | |
482 | * We work around this by manually creating the mask from the number | |
483 | * of CRTCs that have been registered, and should therefore always be | |
484 | * the same as drm_crtc_index() after registration. | |
485 | */ | |
486 | unsigned long possible_crtcs = 1 << drm->mode_config.num_crtc; | |
c7679306 TR |
487 | struct tegra_plane *plane; |
488 | unsigned int num_formats; | |
489 | const u32 *formats; | |
490 | int err; | |
491 | ||
492 | plane = kzalloc(sizeof(*plane), GFP_KERNEL); | |
493 | if (!plane) | |
494 | return ERR_PTR(-ENOMEM); | |
495 | ||
496 | num_formats = ARRAY_SIZE(tegra_primary_plane_formats); | |
497 | formats = tegra_primary_plane_formats; | |
498 | ||
518e6227 | 499 | err = drm_universal_plane_init(drm, &plane->base, possible_crtcs, |
c7679306 TR |
500 | &tegra_primary_plane_funcs, formats, |
501 | num_formats, DRM_PLANE_TYPE_PRIMARY); | |
502 | if (err < 0) { | |
503 | kfree(plane); | |
504 | return ERR_PTR(err); | |
505 | } | |
506 | ||
507 | return &plane->base; | |
508 | } | |
509 | ||
510 | static const u32 tegra_cursor_plane_formats[] = { | |
511 | DRM_FORMAT_RGBA8888, | |
512 | }; | |
513 | ||
514 | static int tegra_cursor_plane_update(struct drm_plane *plane, | |
515 | struct drm_crtc *crtc, | |
516 | struct drm_framebuffer *fb, int crtc_x, | |
517 | int crtc_y, unsigned int crtc_w, | |
518 | unsigned int crtc_h, uint32_t src_x, | |
519 | uint32_t src_y, uint32_t src_w, | |
520 | uint32_t src_h) | |
521 | { | |
522 | struct tegra_bo *bo = tegra_fb_get_plane(fb, 0); | |
523 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
524 | u32 value = CURSOR_CLIP_DISPLAY; | |
525 | ||
526 | /* scaling not supported for cursor */ | |
527 | if ((src_w >> 16 != crtc_w) || (src_h >> 16 != crtc_h)) | |
528 | return -EINVAL; | |
529 | ||
530 | /* only square cursors supported */ | |
531 | if (src_w != src_h) | |
532 | return -EINVAL; | |
533 | ||
534 | switch (crtc_w) { | |
535 | case 32: | |
536 | value |= CURSOR_SIZE_32x32; | |
537 | break; | |
538 | ||
539 | case 64: | |
540 | value |= CURSOR_SIZE_64x64; | |
541 | break; | |
542 | ||
543 | case 128: | |
544 | value |= CURSOR_SIZE_128x128; | |
545 | break; | |
546 | ||
547 | case 256: | |
548 | value |= CURSOR_SIZE_256x256; | |
549 | break; | |
550 | ||
551 | default: | |
552 | return -EINVAL; | |
553 | } | |
554 | ||
555 | value |= (bo->paddr >> 10) & 0x3fffff; | |
556 | tegra_dc_writel(dc, value, DC_DISP_CURSOR_START_ADDR); | |
557 | ||
558 | #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT | |
559 | value = (bo->paddr >> 32) & 0x3; | |
560 | tegra_dc_writel(dc, value, DC_DISP_CURSOR_START_ADDR_HI); | |
561 | #endif | |
562 | ||
563 | /* enable cursor and set blend mode */ | |
564 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
565 | value |= CURSOR_ENABLE; | |
566 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); | |
567 | ||
568 | value = tegra_dc_readl(dc, DC_DISP_BLEND_CURSOR_CONTROL); | |
569 | value &= ~CURSOR_DST_BLEND_MASK; | |
570 | value &= ~CURSOR_SRC_BLEND_MASK; | |
571 | value |= CURSOR_MODE_NORMAL; | |
572 | value |= CURSOR_DST_BLEND_NEG_K1_TIMES_SRC; | |
573 | value |= CURSOR_SRC_BLEND_K1_TIMES_SRC; | |
574 | value |= CURSOR_ALPHA; | |
575 | tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL); | |
576 | ||
577 | /* position the cursor */ | |
578 | value = (crtc_y & 0x3fff) << 16 | (crtc_x & 0x3fff); | |
579 | tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION); | |
580 | ||
581 | /* apply changes */ | |
582 | tegra_dc_cursor_commit(dc); | |
583 | tegra_dc_commit(dc); | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | static int tegra_cursor_plane_disable(struct drm_plane *plane) | |
589 | { | |
590 | struct tegra_dc *dc = to_tegra_dc(plane->crtc); | |
591 | u32 value; | |
592 | ||
593 | if (!plane->crtc) | |
594 | return 0; | |
595 | ||
596 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
597 | value &= ~CURSOR_ENABLE; | |
598 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); | |
599 | ||
600 | tegra_dc_cursor_commit(dc); | |
601 | tegra_dc_commit(dc); | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | static const struct drm_plane_funcs tegra_cursor_plane_funcs = { | |
607 | .update_plane = tegra_cursor_plane_update, | |
608 | .disable_plane = tegra_cursor_plane_disable, | |
609 | .destroy = tegra_plane_destroy, | |
610 | }; | |
611 | ||
612 | static struct drm_plane *tegra_dc_cursor_plane_create(struct drm_device *drm, | |
613 | struct tegra_dc *dc) | |
614 | { | |
615 | struct tegra_plane *plane; | |
616 | unsigned int num_formats; | |
617 | const u32 *formats; | |
618 | int err; | |
619 | ||
620 | plane = kzalloc(sizeof(*plane), GFP_KERNEL); | |
621 | if (!plane) | |
622 | return ERR_PTR(-ENOMEM); | |
623 | ||
624 | num_formats = ARRAY_SIZE(tegra_cursor_plane_formats); | |
625 | formats = tegra_cursor_plane_formats; | |
626 | ||
627 | err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe, | |
628 | &tegra_cursor_plane_funcs, formats, | |
629 | num_formats, DRM_PLANE_TYPE_CURSOR); | |
630 | if (err < 0) { | |
631 | kfree(plane); | |
632 | return ERR_PTR(err); | |
633 | } | |
634 | ||
635 | return &plane->base; | |
636 | } | |
637 | ||
638 | static int tegra_overlay_plane_update(struct drm_plane *plane, | |
639 | struct drm_crtc *crtc, | |
640 | struct drm_framebuffer *fb, int crtc_x, | |
641 | int crtc_y, unsigned int crtc_w, | |
642 | unsigned int crtc_h, uint32_t src_x, | |
643 | uint32_t src_y, uint32_t src_w, | |
644 | uint32_t src_h) | |
f34bc787 TR |
645 | { |
646 | struct tegra_plane *p = to_tegra_plane(plane); | |
647 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
648 | struct tegra_dc_window window; | |
649 | unsigned int i; | |
c134f019 | 650 | int err; |
f34bc787 TR |
651 | |
652 | memset(&window, 0, sizeof(window)); | |
653 | window.src.x = src_x >> 16; | |
654 | window.src.y = src_y >> 16; | |
655 | window.src.w = src_w >> 16; | |
656 | window.src.h = src_h >> 16; | |
657 | window.dst.x = crtc_x; | |
658 | window.dst.y = crtc_y; | |
659 | window.dst.w = crtc_w; | |
660 | window.dst.h = crtc_h; | |
f925390e | 661 | window.format = tegra_dc_format(fb->pixel_format, &window.swap); |
f34bc787 | 662 | window.bits_per_pixel = fb->bits_per_pixel; |
db7fbdfd | 663 | window.bottom_up = tegra_fb_is_bottom_up(fb); |
c134f019 TR |
664 | |
665 | err = tegra_fb_get_tiling(fb, &window.tiling); | |
666 | if (err < 0) | |
667 | return err; | |
f34bc787 TR |
668 | |
669 | for (i = 0; i < drm_format_num_planes(fb->pixel_format); i++) { | |
de2ba664 | 670 | struct tegra_bo *bo = tegra_fb_get_plane(fb, i); |
f34bc787 | 671 | |
de2ba664 | 672 | window.base[i] = bo->paddr + fb->offsets[i]; |
f34bc787 TR |
673 | |
674 | /* | |
675 | * Tegra doesn't support different strides for U and V planes | |
676 | * so we display a warning if the user tries to display a | |
677 | * framebuffer with such a configuration. | |
678 | */ | |
679 | if (i >= 2) { | |
680 | if (fb->pitches[i] != window.stride[1]) | |
681 | DRM_ERROR("unsupported UV-plane configuration\n"); | |
682 | } else { | |
683 | window.stride[i] = fb->pitches[i]; | |
684 | } | |
685 | } | |
686 | ||
687 | return tegra_dc_setup_window(dc, p->index, &window); | |
688 | } | |
689 | ||
c7679306 | 690 | static void tegra_overlay_plane_destroy(struct drm_plane *plane) |
f34bc787 | 691 | { |
c7679306 TR |
692 | tegra_window_plane_disable(plane); |
693 | tegra_plane_destroy(plane); | |
f34bc787 TR |
694 | } |
695 | ||
c7679306 TR |
696 | static const struct drm_plane_funcs tegra_overlay_plane_funcs = { |
697 | .update_plane = tegra_overlay_plane_update, | |
698 | .disable_plane = tegra_window_plane_disable, | |
699 | .destroy = tegra_overlay_plane_destroy, | |
f34bc787 TR |
700 | }; |
701 | ||
c7679306 | 702 | static const uint32_t tegra_overlay_plane_formats[] = { |
dbe4d9a7 | 703 | DRM_FORMAT_XBGR8888, |
f34bc787 | 704 | DRM_FORMAT_XRGB8888, |
dbe4d9a7 | 705 | DRM_FORMAT_RGB565, |
f34bc787 | 706 | DRM_FORMAT_UYVY, |
f925390e | 707 | DRM_FORMAT_YUYV, |
f34bc787 TR |
708 | DRM_FORMAT_YUV420, |
709 | DRM_FORMAT_YUV422, | |
710 | }; | |
711 | ||
c7679306 TR |
712 | static struct drm_plane *tegra_dc_overlay_plane_create(struct drm_device *drm, |
713 | struct tegra_dc *dc, | |
714 | unsigned int index) | |
f34bc787 | 715 | { |
c7679306 TR |
716 | struct tegra_plane *plane; |
717 | unsigned int num_formats; | |
718 | const u32 *formats; | |
719 | int err; | |
f34bc787 | 720 | |
c7679306 TR |
721 | plane = kzalloc(sizeof(*plane), GFP_KERNEL); |
722 | if (!plane) | |
723 | return ERR_PTR(-ENOMEM); | |
f34bc787 | 724 | |
c7679306 | 725 | plane->index = index; |
f34bc787 | 726 | |
c7679306 TR |
727 | num_formats = ARRAY_SIZE(tegra_overlay_plane_formats); |
728 | formats = tegra_overlay_plane_formats; | |
f34bc787 | 729 | |
c7679306 TR |
730 | err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe, |
731 | &tegra_overlay_plane_funcs, formats, | |
732 | num_formats, DRM_PLANE_TYPE_OVERLAY); | |
733 | if (err < 0) { | |
734 | kfree(plane); | |
735 | return ERR_PTR(err); | |
736 | } | |
737 | ||
738 | return &plane->base; | |
739 | } | |
740 | ||
741 | static int tegra_dc_add_planes(struct drm_device *drm, struct tegra_dc *dc) | |
742 | { | |
743 | struct drm_plane *plane; | |
744 | unsigned int i; | |
745 | ||
746 | for (i = 0; i < 2; i++) { | |
747 | plane = tegra_dc_overlay_plane_create(drm, dc, 1 + i); | |
748 | if (IS_ERR(plane)) | |
749 | return PTR_ERR(plane); | |
f34bc787 TR |
750 | } |
751 | ||
752 | return 0; | |
753 | } | |
754 | ||
23fb4740 TR |
755 | static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y, |
756 | struct drm_framebuffer *fb) | |
757 | { | |
de2ba664 | 758 | struct tegra_bo *bo = tegra_fb_get_plane(fb, 0); |
db7fbdfd | 759 | unsigned int h_offset = 0, v_offset = 0; |
c134f019 | 760 | struct tegra_bo_tiling tiling; |
93396d0f | 761 | unsigned long value, flags; |
f925390e | 762 | unsigned int format, swap; |
c134f019 TR |
763 | int err; |
764 | ||
765 | err = tegra_fb_get_tiling(fb, &tiling); | |
766 | if (err < 0) | |
767 | return err; | |
23fb4740 | 768 | |
93396d0f SP |
769 | spin_lock_irqsave(&dc->lock, flags); |
770 | ||
23fb4740 TR |
771 | tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER); |
772 | ||
773 | value = fb->offsets[0] + y * fb->pitches[0] + | |
774 | x * fb->bits_per_pixel / 8; | |
775 | ||
de2ba664 | 776 | tegra_dc_writel(dc, bo->paddr + value, DC_WINBUF_START_ADDR); |
23fb4740 | 777 | tegra_dc_writel(dc, fb->pitches[0], DC_WIN_LINE_STRIDE); |
f925390e TR |
778 | |
779 | format = tegra_dc_format(fb->pixel_format, &swap); | |
ed683aea | 780 | tegra_dc_writel(dc, format, DC_WIN_COLOR_DEPTH); |
f925390e | 781 | tegra_dc_writel(dc, swap, DC_WIN_BYTE_SWAP); |
23fb4740 | 782 | |
c134f019 TR |
783 | if (dc->soc->supports_block_linear) { |
784 | unsigned long height = tiling.value; | |
785 | ||
786 | switch (tiling.mode) { | |
787 | case TEGRA_BO_TILING_MODE_PITCH: | |
788 | value = DC_WINBUF_SURFACE_KIND_PITCH; | |
789 | break; | |
790 | ||
791 | case TEGRA_BO_TILING_MODE_TILED: | |
792 | value = DC_WINBUF_SURFACE_KIND_TILED; | |
793 | break; | |
794 | ||
795 | case TEGRA_BO_TILING_MODE_BLOCK: | |
796 | value = DC_WINBUF_SURFACE_KIND_BLOCK_HEIGHT(height) | | |
797 | DC_WINBUF_SURFACE_KIND_BLOCK; | |
798 | break; | |
799 | } | |
800 | ||
801 | tegra_dc_writel(dc, value, DC_WINBUF_SURFACE_KIND); | |
773af77f | 802 | } else { |
c134f019 TR |
803 | switch (tiling.mode) { |
804 | case TEGRA_BO_TILING_MODE_PITCH: | |
805 | value = DC_WIN_BUFFER_ADDR_MODE_LINEAR_UV | | |
806 | DC_WIN_BUFFER_ADDR_MODE_LINEAR; | |
807 | break; | |
773af77f | 808 | |
c134f019 TR |
809 | case TEGRA_BO_TILING_MODE_TILED: |
810 | value = DC_WIN_BUFFER_ADDR_MODE_TILE_UV | | |
811 | DC_WIN_BUFFER_ADDR_MODE_TILE; | |
812 | break; | |
813 | ||
814 | case TEGRA_BO_TILING_MODE_BLOCK: | |
815 | DRM_ERROR("hardware doesn't support block linear mode\n"); | |
93396d0f | 816 | spin_unlock_irqrestore(&dc->lock, flags); |
c134f019 TR |
817 | return -EINVAL; |
818 | } | |
819 | ||
820 | tegra_dc_writel(dc, value, DC_WIN_BUFFER_ADDR_MODE); | |
821 | } | |
773af77f | 822 | |
db7fbdfd TR |
823 | /* make sure bottom-up buffers are properly displayed */ |
824 | if (tegra_fb_is_bottom_up(fb)) { | |
825 | value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); | |
eba66501 | 826 | value |= V_DIRECTION; |
db7fbdfd TR |
827 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); |
828 | ||
829 | v_offset += fb->height - 1; | |
830 | } else { | |
831 | value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); | |
eba66501 | 832 | value &= ~V_DIRECTION; |
db7fbdfd TR |
833 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); |
834 | } | |
835 | ||
836 | tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET); | |
837 | tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET); | |
838 | ||
23fb4740 | 839 | value = GENERAL_ACT_REQ | WIN_A_ACT_REQ; |
205d48ed | 840 | tegra_dc_writel(dc, value << 8, DC_CMD_STATE_CONTROL); |
23fb4740 TR |
841 | tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); |
842 | ||
93396d0f SP |
843 | spin_unlock_irqrestore(&dc->lock, flags); |
844 | ||
23fb4740 TR |
845 | return 0; |
846 | } | |
847 | ||
6e5ff998 TR |
848 | void tegra_dc_enable_vblank(struct tegra_dc *dc) |
849 | { | |
850 | unsigned long value, flags; | |
851 | ||
852 | spin_lock_irqsave(&dc->lock, flags); | |
853 | ||
854 | value = tegra_dc_readl(dc, DC_CMD_INT_MASK); | |
855 | value |= VBLANK_INT; | |
856 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
857 | ||
858 | spin_unlock_irqrestore(&dc->lock, flags); | |
859 | } | |
860 | ||
861 | void tegra_dc_disable_vblank(struct tegra_dc *dc) | |
862 | { | |
863 | unsigned long value, flags; | |
864 | ||
865 | spin_lock_irqsave(&dc->lock, flags); | |
866 | ||
867 | value = tegra_dc_readl(dc, DC_CMD_INT_MASK); | |
868 | value &= ~VBLANK_INT; | |
869 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
870 | ||
871 | spin_unlock_irqrestore(&dc->lock, flags); | |
872 | } | |
873 | ||
3c03c46a TR |
874 | static void tegra_dc_finish_page_flip(struct tegra_dc *dc) |
875 | { | |
876 | struct drm_device *drm = dc->base.dev; | |
877 | struct drm_crtc *crtc = &dc->base; | |
3c03c46a | 878 | unsigned long flags, base; |
de2ba664 | 879 | struct tegra_bo *bo; |
3c03c46a | 880 | |
6b59cc1c TR |
881 | spin_lock_irqsave(&drm->event_lock, flags); |
882 | ||
883 | if (!dc->event) { | |
884 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
3c03c46a | 885 | return; |
6b59cc1c | 886 | } |
3c03c46a | 887 | |
f4510a27 | 888 | bo = tegra_fb_get_plane(crtc->primary->fb, 0); |
3c03c46a | 889 | |
8643bc6d | 890 | spin_lock(&dc->lock); |
93396d0f | 891 | |
3c03c46a | 892 | /* check if new start address has been latched */ |
93396d0f | 893 | tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER); |
3c03c46a TR |
894 | tegra_dc_writel(dc, READ_MUX, DC_CMD_STATE_ACCESS); |
895 | base = tegra_dc_readl(dc, DC_WINBUF_START_ADDR); | |
896 | tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS); | |
897 | ||
8643bc6d | 898 | spin_unlock(&dc->lock); |
93396d0f | 899 | |
f4510a27 | 900 | if (base == bo->paddr + crtc->primary->fb->offsets[0]) { |
ed7dae58 TR |
901 | drm_crtc_send_vblank_event(crtc, dc->event); |
902 | drm_crtc_vblank_put(crtc); | |
3c03c46a | 903 | dc->event = NULL; |
3c03c46a | 904 | } |
6b59cc1c TR |
905 | |
906 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
3c03c46a TR |
907 | } |
908 | ||
909 | void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file) | |
910 | { | |
911 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
912 | struct drm_device *drm = crtc->dev; | |
913 | unsigned long flags; | |
914 | ||
915 | spin_lock_irqsave(&drm->event_lock, flags); | |
916 | ||
917 | if (dc->event && dc->event->base.file_priv == file) { | |
918 | dc->event->base.destroy(&dc->event->base); | |
ed7dae58 | 919 | drm_crtc_vblank_put(crtc); |
3c03c46a TR |
920 | dc->event = NULL; |
921 | } | |
922 | ||
923 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
924 | } | |
925 | ||
926 | static int tegra_dc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
a5b6f74e | 927 | struct drm_pending_vblank_event *event, uint32_t page_flip_flags) |
3c03c46a | 928 | { |
ed7dae58 | 929 | unsigned int pipe = drm_crtc_index(crtc); |
3c03c46a | 930 | struct tegra_dc *dc = to_tegra_dc(crtc); |
3c03c46a TR |
931 | |
932 | if (dc->event) | |
933 | return -EBUSY; | |
934 | ||
935 | if (event) { | |
ed7dae58 | 936 | event->pipe = pipe; |
3c03c46a | 937 | dc->event = event; |
ed7dae58 | 938 | drm_crtc_vblank_get(crtc); |
3c03c46a TR |
939 | } |
940 | ||
941 | tegra_dc_set_base(dc, 0, 0, fb); | |
f4510a27 | 942 | crtc->primary->fb = fb; |
3c03c46a TR |
943 | |
944 | return 0; | |
945 | } | |
946 | ||
f002abc1 TR |
947 | static void tegra_dc_destroy(struct drm_crtc *crtc) |
948 | { | |
949 | drm_crtc_cleanup(crtc); | |
f002abc1 TR |
950 | } |
951 | ||
d8f4a9ed | 952 | static const struct drm_crtc_funcs tegra_crtc_funcs = { |
3c03c46a | 953 | .page_flip = tegra_dc_page_flip, |
d8f4a9ed | 954 | .set_config = drm_crtc_helper_set_config, |
f002abc1 | 955 | .destroy = tegra_dc_destroy, |
d8f4a9ed TR |
956 | }; |
957 | ||
86df256f TR |
958 | static void tegra_dc_stop(struct tegra_dc *dc) |
959 | { | |
960 | u32 value; | |
961 | ||
962 | /* stop the display controller */ | |
963 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND); | |
964 | value &= ~DISP_CTRL_MODE_MASK; | |
965 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND); | |
966 | ||
967 | tegra_dc_commit(dc); | |
968 | } | |
969 | ||
970 | static bool tegra_dc_idle(struct tegra_dc *dc) | |
971 | { | |
972 | u32 value; | |
973 | ||
974 | value = tegra_dc_readl_active(dc, DC_CMD_DISPLAY_COMMAND); | |
975 | ||
976 | return (value & DISP_CTRL_MODE_MASK) == 0; | |
977 | } | |
978 | ||
979 | static int tegra_dc_wait_idle(struct tegra_dc *dc, unsigned long timeout) | |
980 | { | |
981 | timeout = jiffies + msecs_to_jiffies(timeout); | |
982 | ||
983 | while (time_before(jiffies, timeout)) { | |
984 | if (tegra_dc_idle(dc)) | |
985 | return 0; | |
986 | ||
987 | usleep_range(1000, 2000); | |
988 | } | |
989 | ||
990 | dev_dbg(dc->dev, "timeout waiting for DC to become idle\n"); | |
991 | return -ETIMEDOUT; | |
992 | } | |
993 | ||
f34bc787 | 994 | static void tegra_crtc_disable(struct drm_crtc *crtc) |
d8f4a9ed | 995 | { |
f002abc1 | 996 | struct tegra_dc *dc = to_tegra_dc(crtc); |
3b0e5855 | 997 | u32 value; |
f002abc1 | 998 | |
86df256f TR |
999 | if (!tegra_dc_idle(dc)) { |
1000 | tegra_dc_stop(dc); | |
1001 | ||
1002 | /* | |
1003 | * Ignore the return value, there isn't anything useful to do | |
1004 | * in case this fails. | |
1005 | */ | |
1006 | tegra_dc_wait_idle(dc, 100); | |
1007 | } | |
36904adf | 1008 | |
3b0e5855 TR |
1009 | /* |
1010 | * This should really be part of the RGB encoder driver, but clearing | |
1011 | * these bits has the side-effect of stopping the display controller. | |
1012 | * When that happens no VBLANK interrupts will be raised. At the same | |
1013 | * time the encoder is disabled before the display controller, so the | |
1014 | * above code is always going to timeout waiting for the controller | |
1015 | * to go idle. | |
1016 | * | |
1017 | * Given the close coupling between the RGB encoder and the display | |
1018 | * controller doing it here is still kind of okay. None of the other | |
1019 | * encoder drivers require these bits to be cleared. | |
1020 | * | |
1021 | * XXX: Perhaps given that the display controller is switched off at | |
1022 | * this point anyway maybe clearing these bits isn't even useful for | |
1023 | * the RGB encoder? | |
1024 | */ | |
1025 | if (dc->rgb) { | |
1026 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL); | |
1027 | value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE | | |
1028 | PW4_ENABLE | PM0_ENABLE | PM1_ENABLE); | |
1029 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL); | |
1030 | } | |
1031 | ||
8ff64c17 | 1032 | drm_crtc_vblank_off(crtc); |
c7679306 | 1033 | tegra_dc_commit(dc); |
d8f4a9ed TR |
1034 | } |
1035 | ||
1036 | static bool tegra_crtc_mode_fixup(struct drm_crtc *crtc, | |
1037 | const struct drm_display_mode *mode, | |
1038 | struct drm_display_mode *adjusted) | |
1039 | { | |
1040 | return true; | |
1041 | } | |
1042 | ||
d8f4a9ed TR |
1043 | static int tegra_dc_set_timings(struct tegra_dc *dc, |
1044 | struct drm_display_mode *mode) | |
1045 | { | |
0444c0ff TR |
1046 | unsigned int h_ref_to_sync = 1; |
1047 | unsigned int v_ref_to_sync = 1; | |
d8f4a9ed TR |
1048 | unsigned long value; |
1049 | ||
1050 | tegra_dc_writel(dc, 0x0, DC_DISP_DISP_TIMING_OPTIONS); | |
1051 | ||
1052 | value = (v_ref_to_sync << 16) | h_ref_to_sync; | |
1053 | tegra_dc_writel(dc, value, DC_DISP_REF_TO_SYNC); | |
1054 | ||
1055 | value = ((mode->vsync_end - mode->vsync_start) << 16) | | |
1056 | ((mode->hsync_end - mode->hsync_start) << 0); | |
1057 | tegra_dc_writel(dc, value, DC_DISP_SYNC_WIDTH); | |
1058 | ||
d8f4a9ed TR |
1059 | value = ((mode->vtotal - mode->vsync_end) << 16) | |
1060 | ((mode->htotal - mode->hsync_end) << 0); | |
40495089 LS |
1061 | tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH); |
1062 | ||
1063 | value = ((mode->vsync_start - mode->vdisplay) << 16) | | |
1064 | ((mode->hsync_start - mode->hdisplay) << 0); | |
d8f4a9ed TR |
1065 | tegra_dc_writel(dc, value, DC_DISP_FRONT_PORCH); |
1066 | ||
1067 | value = (mode->vdisplay << 16) | mode->hdisplay; | |
1068 | tegra_dc_writel(dc, value, DC_DISP_ACTIVE); | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
c5a107d3 TR |
1073 | int tegra_dc_setup_clock(struct tegra_dc *dc, struct clk *parent, |
1074 | unsigned long pclk, unsigned int div) | |
1075 | { | |
1076 | u32 value; | |
1077 | int err; | |
1078 | ||
1079 | err = clk_set_parent(dc->clk, parent); | |
1080 | if (err < 0) { | |
1081 | dev_err(dc->dev, "failed to set parent clock: %d\n", err); | |
1082 | return err; | |
1083 | } | |
1084 | ||
1085 | DRM_DEBUG_KMS("rate: %lu, div: %u\n", clk_get_rate(dc->clk), div); | |
1086 | ||
1087 | value = SHIFT_CLK_DIVIDER(div) | PIXEL_CLK_DIVIDER_PCD1; | |
1088 | tegra_dc_writel(dc, value, DC_DISP_DISP_CLOCK_CONTROL); | |
1089 | ||
1090 | return 0; | |
1091 | } | |
1092 | ||
d8f4a9ed TR |
1093 | static int tegra_crtc_mode_set(struct drm_crtc *crtc, |
1094 | struct drm_display_mode *mode, | |
1095 | struct drm_display_mode *adjusted, | |
1096 | int x, int y, struct drm_framebuffer *old_fb) | |
1097 | { | |
f4510a27 | 1098 | struct tegra_bo *bo = tegra_fb_get_plane(crtc->primary->fb, 0); |
d8f4a9ed | 1099 | struct tegra_dc *dc = to_tegra_dc(crtc); |
f34bc787 | 1100 | struct tegra_dc_window window; |
dbb3f2f7 | 1101 | u32 value; |
d8f4a9ed TR |
1102 | int err; |
1103 | ||
d8f4a9ed TR |
1104 | /* program display mode */ |
1105 | tegra_dc_set_timings(dc, mode); | |
1106 | ||
42d0659b TR |
1107 | if (dc->soc->supports_border_color) |
1108 | tegra_dc_writel(dc, 0, DC_DISP_BORDER_COLOR); | |
1109 | ||
8620fc62 TR |
1110 | /* interlacing isn't supported yet, so disable it */ |
1111 | if (dc->soc->supports_interlacing) { | |
1112 | value = tegra_dc_readl(dc, DC_DISP_INTERLACE_CONTROL); | |
1113 | value &= ~INTERLACE_ENABLE; | |
1114 | tegra_dc_writel(dc, value, DC_DISP_INTERLACE_CONTROL); | |
1115 | } | |
1116 | ||
d8f4a9ed | 1117 | /* setup window parameters */ |
f34bc787 TR |
1118 | memset(&window, 0, sizeof(window)); |
1119 | window.src.x = 0; | |
1120 | window.src.y = 0; | |
1121 | window.src.w = mode->hdisplay; | |
1122 | window.src.h = mode->vdisplay; | |
1123 | window.dst.x = 0; | |
1124 | window.dst.y = 0; | |
1125 | window.dst.w = mode->hdisplay; | |
1126 | window.dst.h = mode->vdisplay; | |
f925390e TR |
1127 | window.format = tegra_dc_format(crtc->primary->fb->pixel_format, |
1128 | &window.swap); | |
f4510a27 MR |
1129 | window.bits_per_pixel = crtc->primary->fb->bits_per_pixel; |
1130 | window.stride[0] = crtc->primary->fb->pitches[0]; | |
de2ba664 | 1131 | window.base[0] = bo->paddr; |
f34bc787 TR |
1132 | |
1133 | err = tegra_dc_setup_window(dc, 0, &window); | |
1134 | if (err < 0) | |
1135 | dev_err(dc->dev, "failed to enable root plane\n"); | |
d8f4a9ed | 1136 | |
d8f4a9ed TR |
1137 | return 0; |
1138 | } | |
d8f4a9ed | 1139 | |
23fb4740 TR |
1140 | static int tegra_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, |
1141 | struct drm_framebuffer *old_fb) | |
1142 | { | |
1143 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
d8f4a9ed | 1144 | |
f4510a27 | 1145 | return tegra_dc_set_base(dc, x, y, crtc->primary->fb); |
d8f4a9ed TR |
1146 | } |
1147 | ||
1148 | static void tegra_crtc_prepare(struct drm_crtc *crtc) | |
1149 | { | |
1150 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
1151 | unsigned int syncpt; | |
1152 | unsigned long value; | |
1153 | ||
8ff64c17 TR |
1154 | drm_crtc_vblank_off(crtc); |
1155 | ||
d8f4a9ed TR |
1156 | if (dc->pipe) |
1157 | syncpt = SYNCPT_VBLANK1; | |
1158 | else | |
1159 | syncpt = SYNCPT_VBLANK0; | |
1160 | ||
1161 | /* initialize display controller */ | |
1162 | tegra_dc_writel(dc, 0x00000100, DC_CMD_GENERAL_INCR_SYNCPT_CNTRL); | |
1163 | tegra_dc_writel(dc, 0x100 | syncpt, DC_CMD_CONT_SYNCPT_VSYNC); | |
1164 | ||
1165 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | WIN_A_OF_INT; | |
1166 | tegra_dc_writel(dc, value, DC_CMD_INT_TYPE); | |
1167 | ||
1168 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | | |
1169 | WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT; | |
1170 | tegra_dc_writel(dc, value, DC_CMD_INT_POLARITY); | |
1171 | ||
d8f4a9ed TR |
1172 | /* initialize timer */ |
1173 | value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(0x20) | | |
1174 | WINDOW_B_THRESHOLD(0x20) | WINDOW_C_THRESHOLD(0x20); | |
1175 | tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY); | |
1176 | ||
1177 | value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(1) | | |
1178 | WINDOW_B_THRESHOLD(1) | WINDOW_C_THRESHOLD(1); | |
1179 | tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER); | |
1180 | ||
d8f4a9ed TR |
1181 | value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT; |
1182 | tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE); | |
6e5ff998 TR |
1183 | |
1184 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT; | |
1185 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
d8f4a9ed TR |
1186 | } |
1187 | ||
1188 | static void tegra_crtc_commit(struct drm_crtc *crtc) | |
1189 | { | |
1190 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
d8f4a9ed | 1191 | |
8ff64c17 | 1192 | drm_crtc_vblank_on(crtc); |
205d48ed | 1193 | tegra_dc_commit(dc); |
d8f4a9ed TR |
1194 | } |
1195 | ||
d8f4a9ed | 1196 | static const struct drm_crtc_helper_funcs tegra_crtc_helper_funcs = { |
f34bc787 | 1197 | .disable = tegra_crtc_disable, |
d8f4a9ed TR |
1198 | .mode_fixup = tegra_crtc_mode_fixup, |
1199 | .mode_set = tegra_crtc_mode_set, | |
23fb4740 | 1200 | .mode_set_base = tegra_crtc_mode_set_base, |
d8f4a9ed TR |
1201 | .prepare = tegra_crtc_prepare, |
1202 | .commit = tegra_crtc_commit, | |
d8f4a9ed TR |
1203 | }; |
1204 | ||
6e5ff998 | 1205 | static irqreturn_t tegra_dc_irq(int irq, void *data) |
d8f4a9ed TR |
1206 | { |
1207 | struct tegra_dc *dc = data; | |
1208 | unsigned long status; | |
1209 | ||
1210 | status = tegra_dc_readl(dc, DC_CMD_INT_STATUS); | |
1211 | tegra_dc_writel(dc, status, DC_CMD_INT_STATUS); | |
1212 | ||
1213 | if (status & FRAME_END_INT) { | |
1214 | /* | |
1215 | dev_dbg(dc->dev, "%s(): frame end\n", __func__); | |
1216 | */ | |
1217 | } | |
1218 | ||
1219 | if (status & VBLANK_INT) { | |
1220 | /* | |
1221 | dev_dbg(dc->dev, "%s(): vertical blank\n", __func__); | |
1222 | */ | |
ed7dae58 | 1223 | drm_crtc_handle_vblank(&dc->base); |
3c03c46a | 1224 | tegra_dc_finish_page_flip(dc); |
d8f4a9ed TR |
1225 | } |
1226 | ||
1227 | if (status & (WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT)) { | |
1228 | /* | |
1229 | dev_dbg(dc->dev, "%s(): underflow\n", __func__); | |
1230 | */ | |
1231 | } | |
1232 | ||
1233 | return IRQ_HANDLED; | |
1234 | } | |
1235 | ||
1236 | static int tegra_dc_show_regs(struct seq_file *s, void *data) | |
1237 | { | |
1238 | struct drm_info_node *node = s->private; | |
1239 | struct tegra_dc *dc = node->info_ent->data; | |
1240 | ||
1241 | #define DUMP_REG(name) \ | |
03a60569 | 1242 | seq_printf(s, "%-40s %#05x %08x\n", #name, name, \ |
d8f4a9ed TR |
1243 | tegra_dc_readl(dc, name)) |
1244 | ||
1245 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT); | |
1246 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT_CNTRL); | |
1247 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT_ERROR); | |
1248 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT); | |
1249 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT_CNTRL); | |
1250 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT_ERROR); | |
1251 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT); | |
1252 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT_CNTRL); | |
1253 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT_ERROR); | |
1254 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT); | |
1255 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT_CNTRL); | |
1256 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT_ERROR); | |
1257 | DUMP_REG(DC_CMD_CONT_SYNCPT_VSYNC); | |
1258 | DUMP_REG(DC_CMD_DISPLAY_COMMAND_OPTION0); | |
1259 | DUMP_REG(DC_CMD_DISPLAY_COMMAND); | |
1260 | DUMP_REG(DC_CMD_SIGNAL_RAISE); | |
1261 | DUMP_REG(DC_CMD_DISPLAY_POWER_CONTROL); | |
1262 | DUMP_REG(DC_CMD_INT_STATUS); | |
1263 | DUMP_REG(DC_CMD_INT_MASK); | |
1264 | DUMP_REG(DC_CMD_INT_ENABLE); | |
1265 | DUMP_REG(DC_CMD_INT_TYPE); | |
1266 | DUMP_REG(DC_CMD_INT_POLARITY); | |
1267 | DUMP_REG(DC_CMD_SIGNAL_RAISE1); | |
1268 | DUMP_REG(DC_CMD_SIGNAL_RAISE2); | |
1269 | DUMP_REG(DC_CMD_SIGNAL_RAISE3); | |
1270 | DUMP_REG(DC_CMD_STATE_ACCESS); | |
1271 | DUMP_REG(DC_CMD_STATE_CONTROL); | |
1272 | DUMP_REG(DC_CMD_DISPLAY_WINDOW_HEADER); | |
1273 | DUMP_REG(DC_CMD_REG_ACT_CONTROL); | |
1274 | DUMP_REG(DC_COM_CRC_CONTROL); | |
1275 | DUMP_REG(DC_COM_CRC_CHECKSUM); | |
1276 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(0)); | |
1277 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(1)); | |
1278 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(2)); | |
1279 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(3)); | |
1280 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(0)); | |
1281 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(1)); | |
1282 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(2)); | |
1283 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(3)); | |
1284 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(0)); | |
1285 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(1)); | |
1286 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(2)); | |
1287 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(3)); | |
1288 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(0)); | |
1289 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(1)); | |
1290 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(2)); | |
1291 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(3)); | |
1292 | DUMP_REG(DC_COM_PIN_INPUT_DATA(0)); | |
1293 | DUMP_REG(DC_COM_PIN_INPUT_DATA(1)); | |
1294 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(0)); | |
1295 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(1)); | |
1296 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(2)); | |
1297 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(3)); | |
1298 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(4)); | |
1299 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(5)); | |
1300 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(6)); | |
1301 | DUMP_REG(DC_COM_PIN_MISC_CONTROL); | |
1302 | DUMP_REG(DC_COM_PIN_PM0_CONTROL); | |
1303 | DUMP_REG(DC_COM_PIN_PM0_DUTY_CYCLE); | |
1304 | DUMP_REG(DC_COM_PIN_PM1_CONTROL); | |
1305 | DUMP_REG(DC_COM_PIN_PM1_DUTY_CYCLE); | |
1306 | DUMP_REG(DC_COM_SPI_CONTROL); | |
1307 | DUMP_REG(DC_COM_SPI_START_BYTE); | |
1308 | DUMP_REG(DC_COM_HSPI_WRITE_DATA_AB); | |
1309 | DUMP_REG(DC_COM_HSPI_WRITE_DATA_CD); | |
1310 | DUMP_REG(DC_COM_HSPI_CS_DC); | |
1311 | DUMP_REG(DC_COM_SCRATCH_REGISTER_A); | |
1312 | DUMP_REG(DC_COM_SCRATCH_REGISTER_B); | |
1313 | DUMP_REG(DC_COM_GPIO_CTRL); | |
1314 | DUMP_REG(DC_COM_GPIO_DEBOUNCE_COUNTER); | |
1315 | DUMP_REG(DC_COM_CRC_CHECKSUM_LATCHED); | |
1316 | DUMP_REG(DC_DISP_DISP_SIGNAL_OPTIONS0); | |
1317 | DUMP_REG(DC_DISP_DISP_SIGNAL_OPTIONS1); | |
1318 | DUMP_REG(DC_DISP_DISP_WIN_OPTIONS); | |
1319 | DUMP_REG(DC_DISP_DISP_MEM_HIGH_PRIORITY); | |
1320 | DUMP_REG(DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER); | |
1321 | DUMP_REG(DC_DISP_DISP_TIMING_OPTIONS); | |
1322 | DUMP_REG(DC_DISP_REF_TO_SYNC); | |
1323 | DUMP_REG(DC_DISP_SYNC_WIDTH); | |
1324 | DUMP_REG(DC_DISP_BACK_PORCH); | |
1325 | DUMP_REG(DC_DISP_ACTIVE); | |
1326 | DUMP_REG(DC_DISP_FRONT_PORCH); | |
1327 | DUMP_REG(DC_DISP_H_PULSE0_CONTROL); | |
1328 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_A); | |
1329 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_B); | |
1330 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_C); | |
1331 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_D); | |
1332 | DUMP_REG(DC_DISP_H_PULSE1_CONTROL); | |
1333 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_A); | |
1334 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_B); | |
1335 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_C); | |
1336 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_D); | |
1337 | DUMP_REG(DC_DISP_H_PULSE2_CONTROL); | |
1338 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_A); | |
1339 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_B); | |
1340 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_C); | |
1341 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_D); | |
1342 | DUMP_REG(DC_DISP_V_PULSE0_CONTROL); | |
1343 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_A); | |
1344 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_B); | |
1345 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_C); | |
1346 | DUMP_REG(DC_DISP_V_PULSE1_CONTROL); | |
1347 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_A); | |
1348 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_B); | |
1349 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_C); | |
1350 | DUMP_REG(DC_DISP_V_PULSE2_CONTROL); | |
1351 | DUMP_REG(DC_DISP_V_PULSE2_POSITION_A); | |
1352 | DUMP_REG(DC_DISP_V_PULSE3_CONTROL); | |
1353 | DUMP_REG(DC_DISP_V_PULSE3_POSITION_A); | |
1354 | DUMP_REG(DC_DISP_M0_CONTROL); | |
1355 | DUMP_REG(DC_DISP_M1_CONTROL); | |
1356 | DUMP_REG(DC_DISP_DI_CONTROL); | |
1357 | DUMP_REG(DC_DISP_PP_CONTROL); | |
1358 | DUMP_REG(DC_DISP_PP_SELECT_A); | |
1359 | DUMP_REG(DC_DISP_PP_SELECT_B); | |
1360 | DUMP_REG(DC_DISP_PP_SELECT_C); | |
1361 | DUMP_REG(DC_DISP_PP_SELECT_D); | |
1362 | DUMP_REG(DC_DISP_DISP_CLOCK_CONTROL); | |
1363 | DUMP_REG(DC_DISP_DISP_INTERFACE_CONTROL); | |
1364 | DUMP_REG(DC_DISP_DISP_COLOR_CONTROL); | |
1365 | DUMP_REG(DC_DISP_SHIFT_CLOCK_OPTIONS); | |
1366 | DUMP_REG(DC_DISP_DATA_ENABLE_OPTIONS); | |
1367 | DUMP_REG(DC_DISP_SERIAL_INTERFACE_OPTIONS); | |
1368 | DUMP_REG(DC_DISP_LCD_SPI_OPTIONS); | |
1369 | DUMP_REG(DC_DISP_BORDER_COLOR); | |
1370 | DUMP_REG(DC_DISP_COLOR_KEY0_LOWER); | |
1371 | DUMP_REG(DC_DISP_COLOR_KEY0_UPPER); | |
1372 | DUMP_REG(DC_DISP_COLOR_KEY1_LOWER); | |
1373 | DUMP_REG(DC_DISP_COLOR_KEY1_UPPER); | |
1374 | DUMP_REG(DC_DISP_CURSOR_FOREGROUND); | |
1375 | DUMP_REG(DC_DISP_CURSOR_BACKGROUND); | |
1376 | DUMP_REG(DC_DISP_CURSOR_START_ADDR); | |
1377 | DUMP_REG(DC_DISP_CURSOR_START_ADDR_NS); | |
1378 | DUMP_REG(DC_DISP_CURSOR_POSITION); | |
1379 | DUMP_REG(DC_DISP_CURSOR_POSITION_NS); | |
1380 | DUMP_REG(DC_DISP_INIT_SEQ_CONTROL); | |
1381 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_A); | |
1382 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_B); | |
1383 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_C); | |
1384 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_D); | |
1385 | DUMP_REG(DC_DISP_DC_MCCIF_FIFOCTRL); | |
1386 | DUMP_REG(DC_DISP_MCCIF_DISPLAY0A_HYST); | |
1387 | DUMP_REG(DC_DISP_MCCIF_DISPLAY0B_HYST); | |
1388 | DUMP_REG(DC_DISP_MCCIF_DISPLAY1A_HYST); | |
1389 | DUMP_REG(DC_DISP_MCCIF_DISPLAY1B_HYST); | |
1390 | DUMP_REG(DC_DISP_DAC_CRT_CTRL); | |
1391 | DUMP_REG(DC_DISP_DISP_MISC_CONTROL); | |
1392 | DUMP_REG(DC_DISP_SD_CONTROL); | |
1393 | DUMP_REG(DC_DISP_SD_CSC_COEFF); | |
1394 | DUMP_REG(DC_DISP_SD_LUT(0)); | |
1395 | DUMP_REG(DC_DISP_SD_LUT(1)); | |
1396 | DUMP_REG(DC_DISP_SD_LUT(2)); | |
1397 | DUMP_REG(DC_DISP_SD_LUT(3)); | |
1398 | DUMP_REG(DC_DISP_SD_LUT(4)); | |
1399 | DUMP_REG(DC_DISP_SD_LUT(5)); | |
1400 | DUMP_REG(DC_DISP_SD_LUT(6)); | |
1401 | DUMP_REG(DC_DISP_SD_LUT(7)); | |
1402 | DUMP_REG(DC_DISP_SD_LUT(8)); | |
1403 | DUMP_REG(DC_DISP_SD_FLICKER_CONTROL); | |
1404 | DUMP_REG(DC_DISP_DC_PIXEL_COUNT); | |
1405 | DUMP_REG(DC_DISP_SD_HISTOGRAM(0)); | |
1406 | DUMP_REG(DC_DISP_SD_HISTOGRAM(1)); | |
1407 | DUMP_REG(DC_DISP_SD_HISTOGRAM(2)); | |
1408 | DUMP_REG(DC_DISP_SD_HISTOGRAM(3)); | |
1409 | DUMP_REG(DC_DISP_SD_HISTOGRAM(4)); | |
1410 | DUMP_REG(DC_DISP_SD_HISTOGRAM(5)); | |
1411 | DUMP_REG(DC_DISP_SD_HISTOGRAM(6)); | |
1412 | DUMP_REG(DC_DISP_SD_HISTOGRAM(7)); | |
1413 | DUMP_REG(DC_DISP_SD_BL_TF(0)); | |
1414 | DUMP_REG(DC_DISP_SD_BL_TF(1)); | |
1415 | DUMP_REG(DC_DISP_SD_BL_TF(2)); | |
1416 | DUMP_REG(DC_DISP_SD_BL_TF(3)); | |
1417 | DUMP_REG(DC_DISP_SD_BL_CONTROL); | |
1418 | DUMP_REG(DC_DISP_SD_HW_K_VALUES); | |
1419 | DUMP_REG(DC_DISP_SD_MAN_K_VALUES); | |
e687651b TR |
1420 | DUMP_REG(DC_DISP_CURSOR_START_ADDR_HI); |
1421 | DUMP_REG(DC_DISP_BLEND_CURSOR_CONTROL); | |
d8f4a9ed TR |
1422 | DUMP_REG(DC_WIN_WIN_OPTIONS); |
1423 | DUMP_REG(DC_WIN_BYTE_SWAP); | |
1424 | DUMP_REG(DC_WIN_BUFFER_CONTROL); | |
1425 | DUMP_REG(DC_WIN_COLOR_DEPTH); | |
1426 | DUMP_REG(DC_WIN_POSITION); | |
1427 | DUMP_REG(DC_WIN_SIZE); | |
1428 | DUMP_REG(DC_WIN_PRESCALED_SIZE); | |
1429 | DUMP_REG(DC_WIN_H_INITIAL_DDA); | |
1430 | DUMP_REG(DC_WIN_V_INITIAL_DDA); | |
1431 | DUMP_REG(DC_WIN_DDA_INC); | |
1432 | DUMP_REG(DC_WIN_LINE_STRIDE); | |
1433 | DUMP_REG(DC_WIN_BUF_STRIDE); | |
1434 | DUMP_REG(DC_WIN_UV_BUF_STRIDE); | |
1435 | DUMP_REG(DC_WIN_BUFFER_ADDR_MODE); | |
1436 | DUMP_REG(DC_WIN_DV_CONTROL); | |
1437 | DUMP_REG(DC_WIN_BLEND_NOKEY); | |
1438 | DUMP_REG(DC_WIN_BLEND_1WIN); | |
1439 | DUMP_REG(DC_WIN_BLEND_2WIN_X); | |
1440 | DUMP_REG(DC_WIN_BLEND_2WIN_Y); | |
f34bc787 | 1441 | DUMP_REG(DC_WIN_BLEND_3WIN_XY); |
d8f4a9ed TR |
1442 | DUMP_REG(DC_WIN_HP_FETCH_CONTROL); |
1443 | DUMP_REG(DC_WINBUF_START_ADDR); | |
1444 | DUMP_REG(DC_WINBUF_START_ADDR_NS); | |
1445 | DUMP_REG(DC_WINBUF_START_ADDR_U); | |
1446 | DUMP_REG(DC_WINBUF_START_ADDR_U_NS); | |
1447 | DUMP_REG(DC_WINBUF_START_ADDR_V); | |
1448 | DUMP_REG(DC_WINBUF_START_ADDR_V_NS); | |
1449 | DUMP_REG(DC_WINBUF_ADDR_H_OFFSET); | |
1450 | DUMP_REG(DC_WINBUF_ADDR_H_OFFSET_NS); | |
1451 | DUMP_REG(DC_WINBUF_ADDR_V_OFFSET); | |
1452 | DUMP_REG(DC_WINBUF_ADDR_V_OFFSET_NS); | |
1453 | DUMP_REG(DC_WINBUF_UFLOW_STATUS); | |
1454 | DUMP_REG(DC_WINBUF_AD_UFLOW_STATUS); | |
1455 | DUMP_REG(DC_WINBUF_BD_UFLOW_STATUS); | |
1456 | DUMP_REG(DC_WINBUF_CD_UFLOW_STATUS); | |
1457 | ||
1458 | #undef DUMP_REG | |
1459 | ||
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | static struct drm_info_list debugfs_files[] = { | |
1464 | { "regs", tegra_dc_show_regs, 0, NULL }, | |
1465 | }; | |
1466 | ||
1467 | static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor) | |
1468 | { | |
1469 | unsigned int i; | |
1470 | char *name; | |
1471 | int err; | |
1472 | ||
1473 | name = kasprintf(GFP_KERNEL, "dc.%d", dc->pipe); | |
1474 | dc->debugfs = debugfs_create_dir(name, minor->debugfs_root); | |
1475 | kfree(name); | |
1476 | ||
1477 | if (!dc->debugfs) | |
1478 | return -ENOMEM; | |
1479 | ||
1480 | dc->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), | |
1481 | GFP_KERNEL); | |
1482 | if (!dc->debugfs_files) { | |
1483 | err = -ENOMEM; | |
1484 | goto remove; | |
1485 | } | |
1486 | ||
1487 | for (i = 0; i < ARRAY_SIZE(debugfs_files); i++) | |
1488 | dc->debugfs_files[i].data = dc; | |
1489 | ||
1490 | err = drm_debugfs_create_files(dc->debugfs_files, | |
1491 | ARRAY_SIZE(debugfs_files), | |
1492 | dc->debugfs, minor); | |
1493 | if (err < 0) | |
1494 | goto free; | |
1495 | ||
1496 | dc->minor = minor; | |
1497 | ||
1498 | return 0; | |
1499 | ||
1500 | free: | |
1501 | kfree(dc->debugfs_files); | |
1502 | dc->debugfs_files = NULL; | |
1503 | remove: | |
1504 | debugfs_remove(dc->debugfs); | |
1505 | dc->debugfs = NULL; | |
1506 | ||
1507 | return err; | |
1508 | } | |
1509 | ||
1510 | static int tegra_dc_debugfs_exit(struct tegra_dc *dc) | |
1511 | { | |
1512 | drm_debugfs_remove_files(dc->debugfs_files, ARRAY_SIZE(debugfs_files), | |
1513 | dc->minor); | |
1514 | dc->minor = NULL; | |
1515 | ||
1516 | kfree(dc->debugfs_files); | |
1517 | dc->debugfs_files = NULL; | |
1518 | ||
1519 | debugfs_remove(dc->debugfs); | |
1520 | dc->debugfs = NULL; | |
1521 | ||
1522 | return 0; | |
1523 | } | |
1524 | ||
53fa7f72 | 1525 | static int tegra_dc_init(struct host1x_client *client) |
d8f4a9ed | 1526 | { |
9910f5c4 | 1527 | struct drm_device *drm = dev_get_drvdata(client->parent); |
776dc384 | 1528 | struct tegra_dc *dc = host1x_client_to_dc(client); |
d1f3e1e0 | 1529 | struct tegra_drm *tegra = drm->dev_private; |
c7679306 TR |
1530 | struct drm_plane *primary = NULL; |
1531 | struct drm_plane *cursor = NULL; | |
d8f4a9ed TR |
1532 | int err; |
1533 | ||
df06b759 TR |
1534 | if (tegra->domain) { |
1535 | err = iommu_attach_device(tegra->domain, dc->dev); | |
1536 | if (err < 0) { | |
1537 | dev_err(dc->dev, "failed to attach to domain: %d\n", | |
1538 | err); | |
1539 | return err; | |
1540 | } | |
1541 | ||
1542 | dc->domain = tegra->domain; | |
1543 | } | |
1544 | ||
c7679306 TR |
1545 | primary = tegra_dc_primary_plane_create(drm, dc); |
1546 | if (IS_ERR(primary)) { | |
1547 | err = PTR_ERR(primary); | |
1548 | goto cleanup; | |
1549 | } | |
1550 | ||
1551 | if (dc->soc->supports_cursor) { | |
1552 | cursor = tegra_dc_cursor_plane_create(drm, dc); | |
1553 | if (IS_ERR(cursor)) { | |
1554 | err = PTR_ERR(cursor); | |
1555 | goto cleanup; | |
1556 | } | |
1557 | } | |
1558 | ||
1559 | err = drm_crtc_init_with_planes(drm, &dc->base, primary, cursor, | |
1560 | &tegra_crtc_funcs); | |
1561 | if (err < 0) | |
1562 | goto cleanup; | |
1563 | ||
d8f4a9ed TR |
1564 | drm_mode_crtc_set_gamma_size(&dc->base, 256); |
1565 | drm_crtc_helper_add(&dc->base, &tegra_crtc_helper_funcs); | |
1566 | ||
d1f3e1e0 TR |
1567 | /* |
1568 | * Keep track of the minimum pitch alignment across all display | |
1569 | * controllers. | |
1570 | */ | |
1571 | if (dc->soc->pitch_align > tegra->pitch_align) | |
1572 | tegra->pitch_align = dc->soc->pitch_align; | |
1573 | ||
9910f5c4 | 1574 | err = tegra_dc_rgb_init(drm, dc); |
d8f4a9ed TR |
1575 | if (err < 0 && err != -ENODEV) { |
1576 | dev_err(dc->dev, "failed to initialize RGB output: %d\n", err); | |
c7679306 | 1577 | goto cleanup; |
d8f4a9ed TR |
1578 | } |
1579 | ||
9910f5c4 | 1580 | err = tegra_dc_add_planes(drm, dc); |
f34bc787 | 1581 | if (err < 0) |
c7679306 | 1582 | goto cleanup; |
f34bc787 | 1583 | |
d8f4a9ed | 1584 | if (IS_ENABLED(CONFIG_DEBUG_FS)) { |
9910f5c4 | 1585 | err = tegra_dc_debugfs_init(dc, drm->primary); |
d8f4a9ed TR |
1586 | if (err < 0) |
1587 | dev_err(dc->dev, "debugfs setup failed: %d\n", err); | |
1588 | } | |
1589 | ||
6e5ff998 | 1590 | err = devm_request_irq(dc->dev, dc->irq, tegra_dc_irq, 0, |
d8f4a9ed TR |
1591 | dev_name(dc->dev), dc); |
1592 | if (err < 0) { | |
1593 | dev_err(dc->dev, "failed to request IRQ#%u: %d\n", dc->irq, | |
1594 | err); | |
c7679306 | 1595 | goto cleanup; |
d8f4a9ed TR |
1596 | } |
1597 | ||
1598 | return 0; | |
c7679306 TR |
1599 | |
1600 | cleanup: | |
1601 | if (cursor) | |
1602 | drm_plane_cleanup(cursor); | |
1603 | ||
1604 | if (primary) | |
1605 | drm_plane_cleanup(primary); | |
1606 | ||
1607 | if (tegra->domain) { | |
1608 | iommu_detach_device(tegra->domain, dc->dev); | |
1609 | dc->domain = NULL; | |
1610 | } | |
1611 | ||
1612 | return err; | |
d8f4a9ed TR |
1613 | } |
1614 | ||
53fa7f72 | 1615 | static int tegra_dc_exit(struct host1x_client *client) |
d8f4a9ed | 1616 | { |
776dc384 | 1617 | struct tegra_dc *dc = host1x_client_to_dc(client); |
d8f4a9ed TR |
1618 | int err; |
1619 | ||
1620 | devm_free_irq(dc->dev, dc->irq, dc); | |
1621 | ||
1622 | if (IS_ENABLED(CONFIG_DEBUG_FS)) { | |
1623 | err = tegra_dc_debugfs_exit(dc); | |
1624 | if (err < 0) | |
1625 | dev_err(dc->dev, "debugfs cleanup failed: %d\n", err); | |
1626 | } | |
1627 | ||
1628 | err = tegra_dc_rgb_exit(dc); | |
1629 | if (err) { | |
1630 | dev_err(dc->dev, "failed to shutdown RGB output: %d\n", err); | |
1631 | return err; | |
1632 | } | |
1633 | ||
df06b759 TR |
1634 | if (dc->domain) { |
1635 | iommu_detach_device(dc->domain, dc->dev); | |
1636 | dc->domain = NULL; | |
1637 | } | |
1638 | ||
d8f4a9ed TR |
1639 | return 0; |
1640 | } | |
1641 | ||
1642 | static const struct host1x_client_ops dc_client_ops = { | |
53fa7f72 TR |
1643 | .init = tegra_dc_init, |
1644 | .exit = tegra_dc_exit, | |
d8f4a9ed TR |
1645 | }; |
1646 | ||
8620fc62 | 1647 | static const struct tegra_dc_soc_info tegra20_dc_soc_info = { |
42d0659b | 1648 | .supports_border_color = true, |
8620fc62 | 1649 | .supports_interlacing = false, |
e687651b | 1650 | .supports_cursor = false, |
c134f019 | 1651 | .supports_block_linear = false, |
d1f3e1e0 | 1652 | .pitch_align = 8, |
9c012700 | 1653 | .has_powergate = false, |
8620fc62 TR |
1654 | }; |
1655 | ||
1656 | static const struct tegra_dc_soc_info tegra30_dc_soc_info = { | |
42d0659b | 1657 | .supports_border_color = true, |
8620fc62 | 1658 | .supports_interlacing = false, |
e687651b | 1659 | .supports_cursor = false, |
c134f019 | 1660 | .supports_block_linear = false, |
d1f3e1e0 | 1661 | .pitch_align = 8, |
9c012700 | 1662 | .has_powergate = false, |
d1f3e1e0 TR |
1663 | }; |
1664 | ||
1665 | static const struct tegra_dc_soc_info tegra114_dc_soc_info = { | |
42d0659b | 1666 | .supports_border_color = true, |
d1f3e1e0 TR |
1667 | .supports_interlacing = false, |
1668 | .supports_cursor = false, | |
1669 | .supports_block_linear = false, | |
1670 | .pitch_align = 64, | |
9c012700 | 1671 | .has_powergate = true, |
8620fc62 TR |
1672 | }; |
1673 | ||
1674 | static const struct tegra_dc_soc_info tegra124_dc_soc_info = { | |
42d0659b | 1675 | .supports_border_color = false, |
8620fc62 | 1676 | .supports_interlacing = true, |
e687651b | 1677 | .supports_cursor = true, |
c134f019 | 1678 | .supports_block_linear = true, |
d1f3e1e0 | 1679 | .pitch_align = 64, |
9c012700 | 1680 | .has_powergate = true, |
8620fc62 TR |
1681 | }; |
1682 | ||
1683 | static const struct of_device_id tegra_dc_of_match[] = { | |
1684 | { | |
1685 | .compatible = "nvidia,tegra124-dc", | |
1686 | .data = &tegra124_dc_soc_info, | |
9c012700 TR |
1687 | }, { |
1688 | .compatible = "nvidia,tegra114-dc", | |
1689 | .data = &tegra114_dc_soc_info, | |
8620fc62 TR |
1690 | }, { |
1691 | .compatible = "nvidia,tegra30-dc", | |
1692 | .data = &tegra30_dc_soc_info, | |
1693 | }, { | |
1694 | .compatible = "nvidia,tegra20-dc", | |
1695 | .data = &tegra20_dc_soc_info, | |
1696 | }, { | |
1697 | /* sentinel */ | |
1698 | } | |
1699 | }; | |
ef70728c | 1700 | MODULE_DEVICE_TABLE(of, tegra_dc_of_match); |
8620fc62 | 1701 | |
13411ddd TR |
1702 | static int tegra_dc_parse_dt(struct tegra_dc *dc) |
1703 | { | |
1704 | struct device_node *np; | |
1705 | u32 value = 0; | |
1706 | int err; | |
1707 | ||
1708 | err = of_property_read_u32(dc->dev->of_node, "nvidia,head", &value); | |
1709 | if (err < 0) { | |
1710 | dev_err(dc->dev, "missing \"nvidia,head\" property\n"); | |
1711 | ||
1712 | /* | |
1713 | * If the nvidia,head property isn't present, try to find the | |
1714 | * correct head number by looking up the position of this | |
1715 | * display controller's node within the device tree. Assuming | |
1716 | * that the nodes are ordered properly in the DTS file and | |
1717 | * that the translation into a flattened device tree blob | |
1718 | * preserves that ordering this will actually yield the right | |
1719 | * head number. | |
1720 | * | |
1721 | * If those assumptions don't hold, this will still work for | |
1722 | * cases where only a single display controller is used. | |
1723 | */ | |
1724 | for_each_matching_node(np, tegra_dc_of_match) { | |
1725 | if (np == dc->dev->of_node) | |
1726 | break; | |
1727 | ||
1728 | value++; | |
1729 | } | |
1730 | } | |
1731 | ||
1732 | dc->pipe = value; | |
1733 | ||
1734 | return 0; | |
1735 | } | |
1736 | ||
d8f4a9ed TR |
1737 | static int tegra_dc_probe(struct platform_device *pdev) |
1738 | { | |
8620fc62 | 1739 | const struct of_device_id *id; |
d8f4a9ed TR |
1740 | struct resource *regs; |
1741 | struct tegra_dc *dc; | |
1742 | int err; | |
1743 | ||
1744 | dc = devm_kzalloc(&pdev->dev, sizeof(*dc), GFP_KERNEL); | |
1745 | if (!dc) | |
1746 | return -ENOMEM; | |
1747 | ||
8620fc62 TR |
1748 | id = of_match_node(tegra_dc_of_match, pdev->dev.of_node); |
1749 | if (!id) | |
1750 | return -ENODEV; | |
1751 | ||
6e5ff998 | 1752 | spin_lock_init(&dc->lock); |
d8f4a9ed TR |
1753 | INIT_LIST_HEAD(&dc->list); |
1754 | dc->dev = &pdev->dev; | |
8620fc62 | 1755 | dc->soc = id->data; |
d8f4a9ed | 1756 | |
13411ddd TR |
1757 | err = tegra_dc_parse_dt(dc); |
1758 | if (err < 0) | |
1759 | return err; | |
1760 | ||
d8f4a9ed TR |
1761 | dc->clk = devm_clk_get(&pdev->dev, NULL); |
1762 | if (IS_ERR(dc->clk)) { | |
1763 | dev_err(&pdev->dev, "failed to get clock\n"); | |
1764 | return PTR_ERR(dc->clk); | |
1765 | } | |
1766 | ||
ca48080a SW |
1767 | dc->rst = devm_reset_control_get(&pdev->dev, "dc"); |
1768 | if (IS_ERR(dc->rst)) { | |
1769 | dev_err(&pdev->dev, "failed to get reset\n"); | |
1770 | return PTR_ERR(dc->rst); | |
1771 | } | |
1772 | ||
9c012700 TR |
1773 | if (dc->soc->has_powergate) { |
1774 | if (dc->pipe == 0) | |
1775 | dc->powergate = TEGRA_POWERGATE_DIS; | |
1776 | else | |
1777 | dc->powergate = TEGRA_POWERGATE_DISB; | |
1778 | ||
1779 | err = tegra_powergate_sequence_power_up(dc->powergate, dc->clk, | |
1780 | dc->rst); | |
1781 | if (err < 0) { | |
1782 | dev_err(&pdev->dev, "failed to power partition: %d\n", | |
1783 | err); | |
1784 | return err; | |
1785 | } | |
1786 | } else { | |
1787 | err = clk_prepare_enable(dc->clk); | |
1788 | if (err < 0) { | |
1789 | dev_err(&pdev->dev, "failed to enable clock: %d\n", | |
1790 | err); | |
1791 | return err; | |
1792 | } | |
1793 | ||
1794 | err = reset_control_deassert(dc->rst); | |
1795 | if (err < 0) { | |
1796 | dev_err(&pdev->dev, "failed to deassert reset: %d\n", | |
1797 | err); | |
1798 | return err; | |
1799 | } | |
1800 | } | |
d8f4a9ed TR |
1801 | |
1802 | regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
d4ed6025 TR |
1803 | dc->regs = devm_ioremap_resource(&pdev->dev, regs); |
1804 | if (IS_ERR(dc->regs)) | |
1805 | return PTR_ERR(dc->regs); | |
d8f4a9ed TR |
1806 | |
1807 | dc->irq = platform_get_irq(pdev, 0); | |
1808 | if (dc->irq < 0) { | |
1809 | dev_err(&pdev->dev, "failed to get IRQ\n"); | |
1810 | return -ENXIO; | |
1811 | } | |
1812 | ||
776dc384 TR |
1813 | INIT_LIST_HEAD(&dc->client.list); |
1814 | dc->client.ops = &dc_client_ops; | |
1815 | dc->client.dev = &pdev->dev; | |
d8f4a9ed TR |
1816 | |
1817 | err = tegra_dc_rgb_probe(dc); | |
1818 | if (err < 0 && err != -ENODEV) { | |
1819 | dev_err(&pdev->dev, "failed to probe RGB output: %d\n", err); | |
1820 | return err; | |
1821 | } | |
1822 | ||
776dc384 | 1823 | err = host1x_client_register(&dc->client); |
d8f4a9ed TR |
1824 | if (err < 0) { |
1825 | dev_err(&pdev->dev, "failed to register host1x client: %d\n", | |
1826 | err); | |
1827 | return err; | |
1828 | } | |
1829 | ||
1830 | platform_set_drvdata(pdev, dc); | |
1831 | ||
1832 | return 0; | |
1833 | } | |
1834 | ||
1835 | static int tegra_dc_remove(struct platform_device *pdev) | |
1836 | { | |
d8f4a9ed TR |
1837 | struct tegra_dc *dc = platform_get_drvdata(pdev); |
1838 | int err; | |
1839 | ||
776dc384 | 1840 | err = host1x_client_unregister(&dc->client); |
d8f4a9ed TR |
1841 | if (err < 0) { |
1842 | dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", | |
1843 | err); | |
1844 | return err; | |
1845 | } | |
1846 | ||
59d29c0e TR |
1847 | err = tegra_dc_rgb_remove(dc); |
1848 | if (err < 0) { | |
1849 | dev_err(&pdev->dev, "failed to remove RGB output: %d\n", err); | |
1850 | return err; | |
1851 | } | |
1852 | ||
5482d75a | 1853 | reset_control_assert(dc->rst); |
9c012700 TR |
1854 | |
1855 | if (dc->soc->has_powergate) | |
1856 | tegra_powergate_power_off(dc->powergate); | |
1857 | ||
d8f4a9ed TR |
1858 | clk_disable_unprepare(dc->clk); |
1859 | ||
1860 | return 0; | |
1861 | } | |
1862 | ||
d8f4a9ed TR |
1863 | struct platform_driver tegra_dc_driver = { |
1864 | .driver = { | |
1865 | .name = "tegra-dc", | |
1866 | .owner = THIS_MODULE, | |
1867 | .of_match_table = tegra_dc_of_match, | |
1868 | }, | |
1869 | .probe = tegra_dc_probe, | |
1870 | .remove = tegra_dc_remove, | |
1871 | }; |