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Commit | Line | Data |
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b73d1230 ID |
1 | /* exynos_drm_vidi.c |
2 | * | |
3 | * Copyright (C) 2012 Samsung Electronics Co.Ltd | |
4 | * Authors: | |
5 | * Inki Dae <inki.dae@samsung.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | */ | |
760285e7 | 13 | #include <drm/drmP.h> |
b73d1230 ID |
14 | |
15 | #include <linux/kernel.h> | |
b73d1230 | 16 | #include <linux/platform_device.h> |
1d50aa9c | 17 | #include <linux/component.h> |
b73d1230 ID |
18 | |
19 | #include <drm/exynos_drm.h> | |
20 | ||
760285e7 DH |
21 | #include <drm/drm_edid.h> |
22 | #include <drm/drm_crtc_helper.h> | |
4ea9526b | 23 | #include <drm/drm_atomic_helper.h> |
b73d1230 ID |
24 | |
25 | #include "exynos_drm_drv.h" | |
26 | #include "exynos_drm_crtc.h" | |
0488f50e | 27 | #include "exynos_drm_fb.h" |
7ee14cdc | 28 | #include "exynos_drm_plane.h" |
e30655d0 | 29 | #include "exynos_drm_vidi.h" |
b73d1230 ID |
30 | |
31 | /* vidi has totally three virtual windows. */ | |
32 | #define WINDOWS_NR 3 | |
33 | ||
ce6cb556 SP |
34 | #define ctx_from_connector(c) container_of(c, struct vidi_context, \ |
35 | connector) | |
b73d1230 | 36 | |
b73d1230 | 37 | struct vidi_context { |
2b8376c8 | 38 | struct drm_encoder encoder; |
1d50aa9c | 39 | struct platform_device *pdev; |
080be03d | 40 | struct drm_device *drm_dev; |
93bca243 | 41 | struct exynos_drm_crtc *crtc; |
ce6cb556 | 42 | struct drm_connector connector; |
7ee14cdc | 43 | struct exynos_drm_plane planes[WINDOWS_NR]; |
b73d1230 ID |
44 | struct edid *raw_edid; |
45 | unsigned int clkdiv; | |
b73d1230 ID |
46 | unsigned long irq_flags; |
47 | unsigned int connected; | |
48 | bool vblank_on; | |
49 | bool suspended; | |
291257cf | 50 | bool direct_vblank; |
b73d1230 ID |
51 | struct work_struct work; |
52 | struct mutex lock; | |
080be03d | 53 | int pipe; |
b73d1230 ID |
54 | }; |
55 | ||
2b8376c8 | 56 | static inline struct vidi_context *encoder_to_vidi(struct drm_encoder *e) |
2f26bd72 | 57 | { |
cf67cc9a | 58 | return container_of(e, struct vidi_context, encoder); |
2f26bd72 AH |
59 | } |
60 | ||
b73d1230 ID |
61 | static const char fake_edid_info[] = { |
62 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05, | |
63 | 0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78, | |
64 | 0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd, | |
65 | 0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, | |
66 | 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00, | |
67 | 0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, | |
68 | 0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00, | |
69 | 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, | |
70 | 0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, | |
71 | 0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47, | |
72 | 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1, | |
73 | 0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83, | |
74 | 0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00, | |
75 | 0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c, | |
76 | 0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a, | |
77 | 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00, | |
78 | 0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c, | |
79 | 0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, | |
80 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
81 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
82 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
83 | 0x00, 0x00, 0x00, 0x06 | |
84 | }; | |
85 | ||
fbbb1e1a MS |
86 | static const uint32_t formats[] = { |
87 | DRM_FORMAT_XRGB8888, | |
88 | DRM_FORMAT_ARGB8888, | |
89 | DRM_FORMAT_NV12, | |
90 | }; | |
91 | ||
fd2d2fc2 MS |
92 | static const enum drm_plane_type vidi_win_types[WINDOWS_NR] = { |
93 | DRM_PLANE_TYPE_PRIMARY, | |
94 | DRM_PLANE_TYPE_OVERLAY, | |
95 | DRM_PLANE_TYPE_CURSOR, | |
96 | }; | |
97 | ||
93bca243 | 98 | static int vidi_enable_vblank(struct exynos_drm_crtc *crtc) |
b73d1230 | 99 | { |
93bca243 | 100 | struct vidi_context *ctx = crtc->ctx; |
b73d1230 | 101 | |
b73d1230 ID |
102 | if (ctx->suspended) |
103 | return -EPERM; | |
104 | ||
105 | if (!test_and_set_bit(0, &ctx->irq_flags)) | |
106 | ctx->vblank_on = true; | |
107 | ||
291257cf ID |
108 | ctx->direct_vblank = true; |
109 | ||
110 | /* | |
111 | * in case of page flip request, vidi_finish_pageflip function | |
112 | * will not be called because direct_vblank is true and then | |
9cc7610a | 113 | * that function will be called by crtc_ops->update_plane callback |
291257cf ID |
114 | */ |
115 | schedule_work(&ctx->work); | |
116 | ||
b73d1230 ID |
117 | return 0; |
118 | } | |
119 | ||
93bca243 | 120 | static void vidi_disable_vblank(struct exynos_drm_crtc *crtc) |
b73d1230 | 121 | { |
93bca243 | 122 | struct vidi_context *ctx = crtc->ctx; |
b73d1230 | 123 | |
b73d1230 ID |
124 | if (ctx->suspended) |
125 | return; | |
126 | ||
127 | if (test_and_clear_bit(0, &ctx->irq_flags)) | |
128 | ctx->vblank_on = false; | |
129 | } | |
130 | ||
1e1d1393 GP |
131 | static void vidi_update_plane(struct exynos_drm_crtc *crtc, |
132 | struct exynos_drm_plane *plane) | |
b73d1230 | 133 | { |
0488f50e | 134 | struct drm_plane_state *state = plane->base.state; |
93bca243 | 135 | struct vidi_context *ctx = crtc->ctx; |
0488f50e | 136 | dma_addr_t addr; |
b73d1230 | 137 | |
b73d1230 ID |
138 | if (ctx->suspended) |
139 | return; | |
140 | ||
0488f50e MS |
141 | addr = exynos_drm_fb_dma_addr(state->fb, 0); |
142 | DRM_DEBUG_KMS("dma_addr = %pad\n", &addr); | |
b73d1230 ID |
143 | |
144 | if (ctx->vblank_on) | |
145 | schedule_work(&ctx->work); | |
146 | } | |
147 | ||
3cecda03 | 148 | static void vidi_enable(struct exynos_drm_crtc *crtc) |
af65c804 | 149 | { |
3cecda03 | 150 | struct vidi_context *ctx = crtc->ctx; |
7ee14cdc | 151 | |
3cecda03 | 152 | mutex_lock(&ctx->lock); |
af65c804 | 153 | |
3cecda03 | 154 | ctx->suspended = false; |
af65c804 | 155 | |
3cecda03 GP |
156 | /* if vblank was enabled status, enable it again. */ |
157 | if (test_and_clear_bit(0, &ctx->irq_flags)) | |
158 | vidi_enable_vblank(ctx->crtc); | |
af65c804 | 159 | |
3cecda03 | 160 | mutex_unlock(&ctx->lock); |
af65c804 SP |
161 | } |
162 | ||
3cecda03 | 163 | static void vidi_disable(struct exynos_drm_crtc *crtc) |
af65c804 | 164 | { |
93bca243 | 165 | struct vidi_context *ctx = crtc->ctx; |
af65c804 SP |
166 | |
167 | mutex_lock(&ctx->lock); | |
168 | ||
3cecda03 | 169 | ctx->suspended = true; |
af65c804 SP |
170 | |
171 | mutex_unlock(&ctx->lock); | |
172 | } | |
173 | ||
93bca243 | 174 | static int vidi_ctx_initialize(struct vidi_context *ctx, |
f37cd5e8 | 175 | struct drm_device *drm_dev) |
080be03d | 176 | { |
f37cd5e8 | 177 | struct exynos_drm_private *priv = drm_dev->dev_private; |
080be03d | 178 | |
eb88e422 | 179 | ctx->drm_dev = drm_dev; |
8a326edd | 180 | ctx->pipe = priv->pipe++; |
080be03d | 181 | |
080be03d SP |
182 | return 0; |
183 | } | |
184 | ||
f3aaf762 | 185 | static const struct exynos_drm_crtc_ops vidi_crtc_ops = { |
3cecda03 GP |
186 | .enable = vidi_enable, |
187 | .disable = vidi_disable, | |
1c6244c3 SP |
188 | .enable_vblank = vidi_enable_vblank, |
189 | .disable_vblank = vidi_disable_vblank, | |
9cc7610a | 190 | .update_plane = vidi_update_plane, |
b73d1230 ID |
191 | }; |
192 | ||
b73d1230 ID |
193 | static void vidi_fake_vblank_handler(struct work_struct *work) |
194 | { | |
195 | struct vidi_context *ctx = container_of(work, struct vidi_context, | |
196 | work); | |
822f6dfd | 197 | int win; |
b73d1230 | 198 | |
080be03d | 199 | if (ctx->pipe < 0) |
b73d1230 ID |
200 | return; |
201 | ||
202 | /* refresh rate is about 50Hz. */ | |
203 | usleep_range(16000, 20000); | |
204 | ||
291257cf ID |
205 | mutex_lock(&ctx->lock); |
206 | ||
207 | if (ctx->direct_vblank) { | |
eafd540a | 208 | drm_crtc_handle_vblank(&ctx->crtc->base); |
291257cf ID |
209 | ctx->direct_vblank = false; |
210 | mutex_unlock(&ctx->lock); | |
211 | return; | |
212 | } | |
213 | ||
214 | mutex_unlock(&ctx->lock); | |
215 | ||
822f6dfd GP |
216 | for (win = 0 ; win < WINDOWS_NR ; win++) { |
217 | struct exynos_drm_plane *plane = &ctx->planes[win]; | |
218 | ||
219 | if (!plane->pending_fb) | |
220 | continue; | |
221 | ||
222 | exynos_drm_crtc_finish_update(ctx->crtc, plane); | |
223 | } | |
b73d1230 ID |
224 | } |
225 | ||
b73d1230 ID |
226 | static int vidi_show_connection(struct device *dev, |
227 | struct device_attribute *attr, char *buf) | |
228 | { | |
f01833cd | 229 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 | 230 | int rc; |
b73d1230 ID |
231 | |
232 | mutex_lock(&ctx->lock); | |
233 | ||
234 | rc = sprintf(buf, "%d\n", ctx->connected); | |
235 | ||
236 | mutex_unlock(&ctx->lock); | |
237 | ||
238 | return rc; | |
239 | } | |
240 | ||
241 | static int vidi_store_connection(struct device *dev, | |
242 | struct device_attribute *attr, | |
243 | const char *buf, size_t len) | |
244 | { | |
f01833cd | 245 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 ID |
246 | int ret; |
247 | ||
b73d1230 ID |
248 | ret = kstrtoint(buf, 0, &ctx->connected); |
249 | if (ret) | |
250 | return ret; | |
251 | ||
252 | if (ctx->connected > 1) | |
253 | return -EINVAL; | |
254 | ||
d07d39df ID |
255 | /* use fake edid data for test. */ |
256 | if (!ctx->raw_edid) | |
257 | ctx->raw_edid = (struct edid *)fake_edid_info; | |
258 | ||
d7b8478a ID |
259 | /* if raw_edid isn't same as fake data then it can't be tested. */ |
260 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { | |
261 | DRM_DEBUG_KMS("edid data is not fake data.\n"); | |
262 | return -EINVAL; | |
263 | } | |
264 | ||
b73d1230 ID |
265 | DRM_DEBUG_KMS("requested connection.\n"); |
266 | ||
080be03d | 267 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
268 | |
269 | return len; | |
270 | } | |
271 | ||
272 | static DEVICE_ATTR(connection, 0644, vidi_show_connection, | |
273 | vidi_store_connection); | |
274 | ||
275 | int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, | |
276 | struct drm_file *file_priv) | |
277 | { | |
cf67cc9a | 278 | struct vidi_context *ctx = dev_get_drvdata(drm_dev->dev); |
b73d1230 ID |
279 | struct drm_exynos_vidi_connection *vidi = data; |
280 | ||
b73d1230 ID |
281 | if (!vidi) { |
282 | DRM_DEBUG_KMS("user data for vidi is null.\n"); | |
283 | return -EINVAL; | |
284 | } | |
285 | ||
b73d1230 ID |
286 | if (vidi->connection > 1) { |
287 | DRM_DEBUG_KMS("connection should be 0 or 1.\n"); | |
288 | return -EINVAL; | |
289 | } | |
290 | ||
b73d1230 ID |
291 | if (ctx->connected == vidi->connection) { |
292 | DRM_DEBUG_KMS("same connection request.\n"); | |
293 | return -EINVAL; | |
294 | } | |
295 | ||
d3b62dbf | 296 | if (vidi->connection) { |
e7808df1 SWK |
297 | struct edid *raw_edid = (struct edid *)(uint32_t)vidi->edid; |
298 | if (!drm_edid_is_valid(raw_edid)) { | |
299 | DRM_DEBUG_KMS("edid data is invalid.\n"); | |
d3b62dbf ID |
300 | return -EINVAL; |
301 | } | |
4ddc773b | 302 | ctx->raw_edid = drm_edid_duplicate(raw_edid); |
d3b62dbf ID |
303 | if (!ctx->raw_edid) { |
304 | DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); | |
305 | return -ENOMEM; | |
306 | } | |
d3b62dbf ID |
307 | } else { |
308 | /* | |
309 | * with connection = 0, free raw_edid | |
310 | * only if raw edid data isn't same as fake data. | |
311 | */ | |
312 | if (ctx->raw_edid && ctx->raw_edid != | |
313 | (struct edid *)fake_edid_info) { | |
314 | kfree(ctx->raw_edid); | |
315 | ctx->raw_edid = NULL; | |
316 | } | |
317 | } | |
b73d1230 ID |
318 | |
319 | ctx->connected = vidi->connection; | |
080be03d | 320 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
321 | |
322 | return 0; | |
323 | } | |
324 | ||
ce6cb556 SP |
325 | static enum drm_connector_status vidi_detect(struct drm_connector *connector, |
326 | bool force) | |
327 | { | |
328 | struct vidi_context *ctx = ctx_from_connector(connector); | |
329 | ||
330 | /* | |
331 | * connection request would come from user side | |
332 | * to do hotplug through specific ioctl. | |
333 | */ | |
334 | return ctx->connected ? connector_status_connected : | |
335 | connector_status_disconnected; | |
336 | } | |
337 | ||
338 | static void vidi_connector_destroy(struct drm_connector *connector) | |
339 | { | |
340 | } | |
341 | ||
800ba2b5 | 342 | static const struct drm_connector_funcs vidi_connector_funcs = { |
63498e30 | 343 | .dpms = drm_atomic_helper_connector_dpms, |
ce6cb556 SP |
344 | .fill_modes = drm_helper_probe_single_connector_modes, |
345 | .detect = vidi_detect, | |
346 | .destroy = vidi_connector_destroy, | |
4ea9526b GP |
347 | .reset = drm_atomic_helper_connector_reset, |
348 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, | |
349 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, | |
ce6cb556 SP |
350 | }; |
351 | ||
352 | static int vidi_get_modes(struct drm_connector *connector) | |
353 | { | |
354 | struct vidi_context *ctx = ctx_from_connector(connector); | |
355 | struct edid *edid; | |
356 | int edid_len; | |
357 | ||
358 | /* | |
359 | * the edid data comes from user side and it would be set | |
360 | * to ctx->raw_edid through specific ioctl. | |
361 | */ | |
362 | if (!ctx->raw_edid) { | |
363 | DRM_DEBUG_KMS("raw_edid is null.\n"); | |
364 | return -EFAULT; | |
365 | } | |
366 | ||
367 | edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; | |
368 | edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); | |
369 | if (!edid) { | |
370 | DRM_DEBUG_KMS("failed to allocate edid\n"); | |
371 | return -ENOMEM; | |
372 | } | |
373 | ||
374 | drm_mode_connector_update_edid_property(connector, edid); | |
375 | ||
376 | return drm_add_edid_modes(connector, edid); | |
377 | } | |
378 | ||
ce6cb556 SP |
379 | static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector) |
380 | { | |
381 | struct vidi_context *ctx = ctx_from_connector(connector); | |
382 | ||
2b8376c8 | 383 | return &ctx->encoder; |
ce6cb556 SP |
384 | } |
385 | ||
800ba2b5 | 386 | static const struct drm_connector_helper_funcs vidi_connector_helper_funcs = { |
ce6cb556 | 387 | .get_modes = vidi_get_modes, |
ce6cb556 SP |
388 | .best_encoder = vidi_best_encoder, |
389 | }; | |
390 | ||
2b8376c8 | 391 | static int vidi_create_connector(struct drm_encoder *encoder) |
ce6cb556 | 392 | { |
2b8376c8 | 393 | struct vidi_context *ctx = encoder_to_vidi(encoder); |
ce6cb556 SP |
394 | struct drm_connector *connector = &ctx->connector; |
395 | int ret; | |
396 | ||
ce6cb556 SP |
397 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
398 | ||
399 | ret = drm_connector_init(ctx->drm_dev, connector, | |
400 | &vidi_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); | |
401 | if (ret) { | |
402 | DRM_ERROR("Failed to initialize connector with drm\n"); | |
403 | return ret; | |
404 | } | |
405 | ||
406 | drm_connector_helper_add(connector, &vidi_connector_helper_funcs); | |
34ea3d38 | 407 | drm_connector_register(connector); |
ce6cb556 SP |
408 | drm_mode_connector_attach_encoder(connector, encoder); |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
2b8376c8 GP |
413 | static void exynos_vidi_mode_set(struct drm_encoder *encoder, |
414 | struct drm_display_mode *mode, | |
415 | struct drm_display_mode *adjusted_mode) | |
416 | { | |
417 | } | |
418 | ||
419 | static void exynos_vidi_enable(struct drm_encoder *encoder) | |
420 | { | |
421 | } | |
422 | ||
423 | static void exynos_vidi_disable(struct drm_encoder *encoder) | |
424 | { | |
425 | } | |
426 | ||
800ba2b5 | 427 | static const struct drm_encoder_helper_funcs exynos_vidi_encoder_helper_funcs = { |
2b8376c8 GP |
428 | .mode_set = exynos_vidi_mode_set, |
429 | .enable = exynos_vidi_enable, | |
430 | .disable = exynos_vidi_disable, | |
431 | }; | |
432 | ||
800ba2b5 | 433 | static const struct drm_encoder_funcs exynos_vidi_encoder_funcs = { |
2b8376c8 GP |
434 | .destroy = drm_encoder_cleanup, |
435 | }; | |
436 | ||
1d50aa9c | 437 | static int vidi_bind(struct device *dev, struct device *master, void *data) |
f37cd5e8 | 438 | { |
f01833cd | 439 | struct vidi_context *ctx = dev_get_drvdata(dev); |
1d50aa9c | 440 | struct drm_device *drm_dev = data; |
2b8376c8 | 441 | struct drm_encoder *encoder = &ctx->encoder; |
7ee14cdc | 442 | struct exynos_drm_plane *exynos_plane; |
fd2d2fc2 MS |
443 | struct exynos_drm_plane_config plane_config = { 0 }; |
444 | unsigned int i; | |
2b8376c8 | 445 | int pipe, ret; |
f37cd5e8 | 446 | |
0f04cf8d JS |
447 | vidi_ctx_initialize(ctx, drm_dev); |
448 | ||
fd2d2fc2 MS |
449 | plane_config.pixel_formats = formats; |
450 | plane_config.num_pixel_formats = ARRAY_SIZE(formats); | |
451 | ||
452 | for (i = 0; i < WINDOWS_NR; i++) { | |
453 | plane_config.zpos = i; | |
454 | plane_config.type = vidi_win_types[i]; | |
455 | ||
40bdfb0a | 456 | ret = exynos_plane_init(drm_dev, &ctx->planes[i], i, |
fd2d2fc2 | 457 | 1 << ctx->pipe, &plane_config); |
7ee14cdc GP |
458 | if (ret) |
459 | return ret; | |
460 | } | |
461 | ||
5d3d0995 | 462 | exynos_plane = &ctx->planes[DEFAULT_WIN]; |
7ee14cdc GP |
463 | ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base, |
464 | ctx->pipe, EXYNOS_DISPLAY_TYPE_VIDI, | |
93bca243 GP |
465 | &vidi_crtc_ops, ctx); |
466 | if (IS_ERR(ctx->crtc)) { | |
f37cd5e8 | 467 | DRM_ERROR("failed to create crtc.\n"); |
93bca243 | 468 | return PTR_ERR(ctx->crtc); |
f37cd5e8 ID |
469 | } |
470 | ||
2b8376c8 GP |
471 | pipe = exynos_drm_crtc_get_pipe_from_type(drm_dev, |
472 | EXYNOS_DISPLAY_TYPE_VIDI); | |
473 | if (pipe < 0) | |
474 | return pipe; | |
475 | ||
476 | encoder->possible_crtcs = 1 << pipe; | |
477 | ||
478 | DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs); | |
479 | ||
480 | drm_encoder_init(drm_dev, encoder, &exynos_vidi_encoder_funcs, | |
13a3d91f | 481 | DRM_MODE_ENCODER_TMDS, NULL); |
2b8376c8 GP |
482 | |
483 | drm_encoder_helper_add(encoder, &exynos_vidi_encoder_helper_funcs); | |
a2986e80 | 484 | |
2b8376c8 | 485 | ret = vidi_create_connector(encoder); |
f37cd5e8 | 486 | if (ret) { |
a2986e80 | 487 | DRM_ERROR("failed to create connector ret = %d\n", ret); |
2b8376c8 | 488 | drm_encoder_cleanup(encoder); |
f37cd5e8 ID |
489 | return ret; |
490 | } | |
491 | ||
492 | return 0; | |
493 | } | |
494 | ||
1d50aa9c ID |
495 | |
496 | static void vidi_unbind(struct device *dev, struct device *master, void *data) | |
497 | { | |
498 | } | |
499 | ||
500 | static const struct component_ops vidi_component_ops = { | |
501 | .bind = vidi_bind, | |
502 | .unbind = vidi_unbind, | |
503 | }; | |
504 | ||
56550d94 | 505 | static int vidi_probe(struct platform_device *pdev) |
b73d1230 | 506 | { |
b73d1230 | 507 | struct vidi_context *ctx; |
b73d1230 ID |
508 | int ret; |
509 | ||
f37cd5e8 | 510 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
b73d1230 ID |
511 | if (!ctx) |
512 | return -ENOMEM; | |
513 | ||
1d50aa9c ID |
514 | ctx->pdev = pdev; |
515 | ||
b73d1230 ID |
516 | INIT_WORK(&ctx->work, vidi_fake_vblank_handler); |
517 | ||
b73d1230 ID |
518 | mutex_init(&ctx->lock); |
519 | ||
f01833cd | 520 | platform_set_drvdata(pdev, ctx); |
b73d1230 | 521 | |
f37cd5e8 ID |
522 | ret = device_create_file(&pdev->dev, &dev_attr_connection); |
523 | if (ret < 0) { | |
1d50aa9c | 524 | DRM_ERROR("failed to create connection sysfs.\n"); |
86650408 | 525 | return ret; |
f37cd5e8 | 526 | } |
b73d1230 | 527 | |
1d50aa9c ID |
528 | ret = component_add(&pdev->dev, &vidi_component_ops); |
529 | if (ret) | |
530 | goto err_remove_file; | |
531 | ||
532 | return ret; | |
533 | ||
534 | err_remove_file: | |
535 | device_remove_file(&pdev->dev, &dev_attr_connection); | |
1d50aa9c ID |
536 | |
537 | return ret; | |
b73d1230 ID |
538 | } |
539 | ||
56550d94 | 540 | static int vidi_remove(struct platform_device *pdev) |
b73d1230 | 541 | { |
f01833cd | 542 | struct vidi_context *ctx = platform_get_drvdata(pdev); |
b73d1230 | 543 | |
d3b62dbf ID |
544 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { |
545 | kfree(ctx->raw_edid); | |
546 | ctx->raw_edid = NULL; | |
f37cd5e8 ID |
547 | |
548 | return -EINVAL; | |
d3b62dbf ID |
549 | } |
550 | ||
1d50aa9c | 551 | component_del(&pdev->dev, &vidi_component_ops); |
1d50aa9c | 552 | |
b73d1230 ID |
553 | return 0; |
554 | } | |
555 | ||
b73d1230 ID |
556 | struct platform_driver vidi_driver = { |
557 | .probe = vidi_probe, | |
56550d94 | 558 | .remove = vidi_remove, |
b73d1230 ID |
559 | .driver = { |
560 | .name = "exynos-drm-vidi", | |
561 | .owner = THIS_MODULE, | |
b73d1230 ID |
562 | }, |
563 | }; |