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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" | |
7ee14cdc | 27 | #include "exynos_drm_plane.h" |
b73d1230 | 28 | #include "exynos_drm_encoder.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 { |
7340426a | 38 | struct exynos_drm_display display; |
1d50aa9c | 39 | struct platform_device *pdev; |
080be03d | 40 | struct drm_device *drm_dev; |
93bca243 | 41 | struct exynos_drm_crtc *crtc; |
ce6cb556 SP |
42 | struct drm_encoder *encoder; |
43 | struct drm_connector connector; | |
7ee14cdc | 44 | struct exynos_drm_plane planes[WINDOWS_NR]; |
b73d1230 ID |
45 | struct edid *raw_edid; |
46 | unsigned int clkdiv; | |
47 | unsigned int default_win; | |
48 | unsigned long irq_flags; | |
49 | unsigned int connected; | |
50 | bool vblank_on; | |
51 | bool suspended; | |
291257cf | 52 | bool direct_vblank; |
b73d1230 ID |
53 | struct work_struct work; |
54 | struct mutex lock; | |
080be03d | 55 | int pipe; |
b73d1230 ID |
56 | }; |
57 | ||
2f26bd72 AH |
58 | static inline struct vidi_context *display_to_vidi(struct exynos_drm_display *d) |
59 | { | |
60 | return container_of(d, struct vidi_context, display); | |
61 | } | |
62 | ||
b73d1230 ID |
63 | static const char fake_edid_info[] = { |
64 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05, | |
65 | 0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78, | |
66 | 0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd, | |
67 | 0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, | |
68 | 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00, | |
69 | 0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, | |
70 | 0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00, | |
71 | 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, | |
72 | 0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, | |
73 | 0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47, | |
74 | 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1, | |
75 | 0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83, | |
76 | 0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00, | |
77 | 0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c, | |
78 | 0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a, | |
79 | 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00, | |
80 | 0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c, | |
81 | 0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, | |
82 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
83 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
84 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
85 | 0x00, 0x00, 0x00, 0x06 | |
86 | }; | |
87 | ||
93bca243 | 88 | static int vidi_enable_vblank(struct exynos_drm_crtc *crtc) |
b73d1230 | 89 | { |
93bca243 | 90 | struct vidi_context *ctx = crtc->ctx; |
b73d1230 | 91 | |
b73d1230 ID |
92 | if (ctx->suspended) |
93 | return -EPERM; | |
94 | ||
95 | if (!test_and_set_bit(0, &ctx->irq_flags)) | |
96 | ctx->vblank_on = true; | |
97 | ||
291257cf ID |
98 | ctx->direct_vblank = true; |
99 | ||
100 | /* | |
101 | * in case of page flip request, vidi_finish_pageflip function | |
102 | * will not be called because direct_vblank is true and then | |
93bca243 | 103 | * that function will be called by crtc_ops->win_commit callback |
291257cf ID |
104 | */ |
105 | schedule_work(&ctx->work); | |
106 | ||
b73d1230 ID |
107 | return 0; |
108 | } | |
109 | ||
93bca243 | 110 | static void vidi_disable_vblank(struct exynos_drm_crtc *crtc) |
b73d1230 | 111 | { |
93bca243 | 112 | struct vidi_context *ctx = crtc->ctx; |
b73d1230 | 113 | |
b73d1230 ID |
114 | if (ctx->suspended) |
115 | return; | |
116 | ||
117 | if (test_and_clear_bit(0, &ctx->irq_flags)) | |
118 | ctx->vblank_on = false; | |
119 | } | |
120 | ||
6e2a3b66 | 121 | static void vidi_win_commit(struct exynos_drm_crtc *crtc, unsigned int win) |
b73d1230 | 122 | { |
93bca243 | 123 | struct vidi_context *ctx = crtc->ctx; |
7ee14cdc | 124 | struct exynos_drm_plane *plane; |
b73d1230 | 125 | |
b73d1230 ID |
126 | if (ctx->suspended) |
127 | return; | |
128 | ||
a7f98d6a | 129 | if (win < 0 || win >= WINDOWS_NR) |
b73d1230 ID |
130 | return; |
131 | ||
7ee14cdc | 132 | plane = &ctx->planes[win]; |
b73d1230 | 133 | |
7ee14cdc | 134 | DRM_DEBUG_KMS("dma_addr = %pad\n", plane->dma_addr); |
b73d1230 ID |
135 | |
136 | if (ctx->vblank_on) | |
137 | schedule_work(&ctx->work); | |
138 | } | |
139 | ||
3cecda03 | 140 | static void vidi_enable(struct exynos_drm_crtc *crtc) |
af65c804 | 141 | { |
3cecda03 | 142 | struct vidi_context *ctx = crtc->ctx; |
7ee14cdc | 143 | |
3cecda03 | 144 | mutex_lock(&ctx->lock); |
af65c804 | 145 | |
3cecda03 | 146 | ctx->suspended = false; |
af65c804 | 147 | |
3cecda03 GP |
148 | /* if vblank was enabled status, enable it again. */ |
149 | if (test_and_clear_bit(0, &ctx->irq_flags)) | |
150 | vidi_enable_vblank(ctx->crtc); | |
af65c804 | 151 | |
3cecda03 | 152 | mutex_unlock(&ctx->lock); |
af65c804 SP |
153 | } |
154 | ||
3cecda03 | 155 | static void vidi_disable(struct exynos_drm_crtc *crtc) |
af65c804 | 156 | { |
93bca243 | 157 | struct vidi_context *ctx = crtc->ctx; |
af65c804 SP |
158 | |
159 | mutex_lock(&ctx->lock); | |
160 | ||
3cecda03 | 161 | ctx->suspended = true; |
af65c804 SP |
162 | |
163 | mutex_unlock(&ctx->lock); | |
164 | } | |
165 | ||
93bca243 | 166 | static int vidi_ctx_initialize(struct vidi_context *ctx, |
f37cd5e8 | 167 | struct drm_device *drm_dev) |
080be03d | 168 | { |
f37cd5e8 | 169 | struct exynos_drm_private *priv = drm_dev->dev_private; |
080be03d | 170 | |
eb88e422 | 171 | ctx->drm_dev = drm_dev; |
8a326edd | 172 | ctx->pipe = priv->pipe++; |
080be03d | 173 | |
080be03d SP |
174 | return 0; |
175 | } | |
176 | ||
f3aaf762 | 177 | static const struct exynos_drm_crtc_ops vidi_crtc_ops = { |
3cecda03 GP |
178 | .enable = vidi_enable, |
179 | .disable = vidi_disable, | |
1c6244c3 SP |
180 | .enable_vblank = vidi_enable_vblank, |
181 | .disable_vblank = vidi_disable_vblank, | |
1c6244c3 | 182 | .win_commit = vidi_win_commit, |
b73d1230 ID |
183 | }; |
184 | ||
b73d1230 ID |
185 | static void vidi_fake_vblank_handler(struct work_struct *work) |
186 | { | |
187 | struct vidi_context *ctx = container_of(work, struct vidi_context, | |
188 | work); | |
b73d1230 | 189 | |
080be03d | 190 | if (ctx->pipe < 0) |
b73d1230 ID |
191 | return; |
192 | ||
193 | /* refresh rate is about 50Hz. */ | |
194 | usleep_range(16000, 20000); | |
195 | ||
291257cf ID |
196 | mutex_lock(&ctx->lock); |
197 | ||
198 | if (ctx->direct_vblank) { | |
080be03d | 199 | drm_handle_vblank(ctx->drm_dev, ctx->pipe); |
291257cf ID |
200 | ctx->direct_vblank = false; |
201 | mutex_unlock(&ctx->lock); | |
202 | return; | |
203 | } | |
204 | ||
205 | mutex_unlock(&ctx->lock); | |
206 | ||
080be03d | 207 | exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe); |
b73d1230 ID |
208 | } |
209 | ||
b73d1230 ID |
210 | static int vidi_show_connection(struct device *dev, |
211 | struct device_attribute *attr, char *buf) | |
212 | { | |
f01833cd | 213 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 | 214 | int rc; |
b73d1230 ID |
215 | |
216 | mutex_lock(&ctx->lock); | |
217 | ||
218 | rc = sprintf(buf, "%d\n", ctx->connected); | |
219 | ||
220 | mutex_unlock(&ctx->lock); | |
221 | ||
222 | return rc; | |
223 | } | |
224 | ||
225 | static int vidi_store_connection(struct device *dev, | |
226 | struct device_attribute *attr, | |
227 | const char *buf, size_t len) | |
228 | { | |
f01833cd | 229 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 ID |
230 | int ret; |
231 | ||
b73d1230 ID |
232 | ret = kstrtoint(buf, 0, &ctx->connected); |
233 | if (ret) | |
234 | return ret; | |
235 | ||
236 | if (ctx->connected > 1) | |
237 | return -EINVAL; | |
238 | ||
d07d39df ID |
239 | /* use fake edid data for test. */ |
240 | if (!ctx->raw_edid) | |
241 | ctx->raw_edid = (struct edid *)fake_edid_info; | |
242 | ||
d7b8478a ID |
243 | /* if raw_edid isn't same as fake data then it can't be tested. */ |
244 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { | |
245 | DRM_DEBUG_KMS("edid data is not fake data.\n"); | |
246 | return -EINVAL; | |
247 | } | |
248 | ||
b73d1230 ID |
249 | DRM_DEBUG_KMS("requested connection.\n"); |
250 | ||
080be03d | 251 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
252 | |
253 | return len; | |
254 | } | |
255 | ||
256 | static DEVICE_ATTR(connection, 0644, vidi_show_connection, | |
257 | vidi_store_connection); | |
258 | ||
259 | int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, | |
260 | struct drm_file *file_priv) | |
261 | { | |
262 | struct vidi_context *ctx = NULL; | |
263 | struct drm_encoder *encoder; | |
080be03d | 264 | struct exynos_drm_display *display; |
b73d1230 ID |
265 | struct drm_exynos_vidi_connection *vidi = data; |
266 | ||
b73d1230 ID |
267 | if (!vidi) { |
268 | DRM_DEBUG_KMS("user data for vidi is null.\n"); | |
269 | return -EINVAL; | |
270 | } | |
271 | ||
b73d1230 ID |
272 | if (vidi->connection > 1) { |
273 | DRM_DEBUG_KMS("connection should be 0 or 1.\n"); | |
274 | return -EINVAL; | |
275 | } | |
276 | ||
277 | list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list, | |
278 | head) { | |
080be03d | 279 | display = exynos_drm_get_display(encoder); |
b73d1230 | 280 | |
080be03d | 281 | if (display->type == EXYNOS_DISPLAY_TYPE_VIDI) { |
2f26bd72 | 282 | ctx = display_to_vidi(display); |
b73d1230 ID |
283 | break; |
284 | } | |
285 | } | |
286 | ||
287 | if (!ctx) { | |
288 | DRM_DEBUG_KMS("not found virtual device type encoder.\n"); | |
289 | return -EINVAL; | |
290 | } | |
291 | ||
292 | if (ctx->connected == vidi->connection) { | |
293 | DRM_DEBUG_KMS("same connection request.\n"); | |
294 | return -EINVAL; | |
295 | } | |
296 | ||
d3b62dbf | 297 | if (vidi->connection) { |
e7808df1 SWK |
298 | struct edid *raw_edid = (struct edid *)(uint32_t)vidi->edid; |
299 | if (!drm_edid_is_valid(raw_edid)) { | |
300 | DRM_DEBUG_KMS("edid data is invalid.\n"); | |
d3b62dbf ID |
301 | return -EINVAL; |
302 | } | |
4ddc773b | 303 | ctx->raw_edid = drm_edid_duplicate(raw_edid); |
d3b62dbf ID |
304 | if (!ctx->raw_edid) { |
305 | DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); | |
306 | return -ENOMEM; | |
307 | } | |
d3b62dbf ID |
308 | } else { |
309 | /* | |
310 | * with connection = 0, free raw_edid | |
311 | * only if raw edid data isn't same as fake data. | |
312 | */ | |
313 | if (ctx->raw_edid && ctx->raw_edid != | |
314 | (struct edid *)fake_edid_info) { | |
315 | kfree(ctx->raw_edid); | |
316 | ctx->raw_edid = NULL; | |
317 | } | |
318 | } | |
b73d1230 ID |
319 | |
320 | ctx->connected = vidi->connection; | |
080be03d | 321 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
322 | |
323 | return 0; | |
324 | } | |
325 | ||
ce6cb556 SP |
326 | static enum drm_connector_status vidi_detect(struct drm_connector *connector, |
327 | bool force) | |
328 | { | |
329 | struct vidi_context *ctx = ctx_from_connector(connector); | |
330 | ||
331 | /* | |
332 | * connection request would come from user side | |
333 | * to do hotplug through specific ioctl. | |
334 | */ | |
335 | return ctx->connected ? connector_status_connected : | |
336 | connector_status_disconnected; | |
337 | } | |
338 | ||
339 | static void vidi_connector_destroy(struct drm_connector *connector) | |
340 | { | |
341 | } | |
342 | ||
343 | static struct drm_connector_funcs vidi_connector_funcs = { | |
63498e30 | 344 | .dpms = drm_atomic_helper_connector_dpms, |
ce6cb556 SP |
345 | .fill_modes = drm_helper_probe_single_connector_modes, |
346 | .detect = vidi_detect, | |
347 | .destroy = vidi_connector_destroy, | |
4ea9526b GP |
348 | .reset = drm_atomic_helper_connector_reset, |
349 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, | |
350 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, | |
ce6cb556 SP |
351 | }; |
352 | ||
353 | static int vidi_get_modes(struct drm_connector *connector) | |
354 | { | |
355 | struct vidi_context *ctx = ctx_from_connector(connector); | |
356 | struct edid *edid; | |
357 | int edid_len; | |
358 | ||
359 | /* | |
360 | * the edid data comes from user side and it would be set | |
361 | * to ctx->raw_edid through specific ioctl. | |
362 | */ | |
363 | if (!ctx->raw_edid) { | |
364 | DRM_DEBUG_KMS("raw_edid is null.\n"); | |
365 | return -EFAULT; | |
366 | } | |
367 | ||
368 | edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; | |
369 | edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); | |
370 | if (!edid) { | |
371 | DRM_DEBUG_KMS("failed to allocate edid\n"); | |
372 | return -ENOMEM; | |
373 | } | |
374 | ||
375 | drm_mode_connector_update_edid_property(connector, edid); | |
376 | ||
377 | return drm_add_edid_modes(connector, edid); | |
378 | } | |
379 | ||
ce6cb556 SP |
380 | static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector) |
381 | { | |
382 | struct vidi_context *ctx = ctx_from_connector(connector); | |
383 | ||
384 | return ctx->encoder; | |
385 | } | |
386 | ||
387 | static struct drm_connector_helper_funcs vidi_connector_helper_funcs = { | |
388 | .get_modes = vidi_get_modes, | |
ce6cb556 SP |
389 | .best_encoder = vidi_best_encoder, |
390 | }; | |
391 | ||
392 | static int vidi_create_connector(struct exynos_drm_display *display, | |
393 | struct drm_encoder *encoder) | |
394 | { | |
2f26bd72 | 395 | struct vidi_context *ctx = display_to_vidi(display); |
ce6cb556 SP |
396 | struct drm_connector *connector = &ctx->connector; |
397 | int ret; | |
398 | ||
399 | ctx->encoder = encoder; | |
400 | connector->polled = DRM_CONNECTOR_POLL_HPD; | |
401 | ||
402 | ret = drm_connector_init(ctx->drm_dev, connector, | |
403 | &vidi_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); | |
404 | if (ret) { | |
405 | DRM_ERROR("Failed to initialize connector with drm\n"); | |
406 | return ret; | |
407 | } | |
408 | ||
409 | drm_connector_helper_add(connector, &vidi_connector_helper_funcs); | |
34ea3d38 | 410 | drm_connector_register(connector); |
ce6cb556 SP |
411 | drm_mode_connector_attach_encoder(connector, encoder); |
412 | ||
413 | return 0; | |
414 | } | |
415 | ||
416 | ||
417 | static struct exynos_drm_display_ops vidi_display_ops = { | |
418 | .create_connector = vidi_create_connector, | |
419 | }; | |
420 | ||
1d50aa9c | 421 | static int vidi_bind(struct device *dev, struct device *master, void *data) |
f37cd5e8 | 422 | { |
f01833cd | 423 | struct vidi_context *ctx = dev_get_drvdata(dev); |
1d50aa9c | 424 | struct drm_device *drm_dev = data; |
7ee14cdc GP |
425 | struct exynos_drm_plane *exynos_plane; |
426 | enum drm_plane_type type; | |
6e2a3b66 GP |
427 | unsigned int zpos; |
428 | int ret; | |
f37cd5e8 | 429 | |
0f04cf8d JS |
430 | vidi_ctx_initialize(ctx, drm_dev); |
431 | ||
7ee14cdc GP |
432 | for (zpos = 0; zpos < WINDOWS_NR; zpos++) { |
433 | type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY : | |
434 | DRM_PLANE_TYPE_OVERLAY; | |
435 | ret = exynos_plane_init(drm_dev, &ctx->planes[zpos], | |
6e2a3b66 | 436 | 1 << ctx->pipe, type, zpos); |
7ee14cdc GP |
437 | if (ret) |
438 | return ret; | |
439 | } | |
440 | ||
441 | exynos_plane = &ctx->planes[ctx->default_win]; | |
442 | ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base, | |
443 | ctx->pipe, EXYNOS_DISPLAY_TYPE_VIDI, | |
93bca243 GP |
444 | &vidi_crtc_ops, ctx); |
445 | if (IS_ERR(ctx->crtc)) { | |
f37cd5e8 | 446 | DRM_ERROR("failed to create crtc.\n"); |
93bca243 | 447 | return PTR_ERR(ctx->crtc); |
f37cd5e8 ID |
448 | } |
449 | ||
7340426a | 450 | ret = exynos_drm_create_enc_conn(drm_dev, &ctx->display); |
f37cd5e8 | 451 | if (ret) { |
93bca243 | 452 | ctx->crtc->base.funcs->destroy(&ctx->crtc->base); |
f37cd5e8 ID |
453 | return ret; |
454 | } | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
1d50aa9c ID |
459 | |
460 | static void vidi_unbind(struct device *dev, struct device *master, void *data) | |
461 | { | |
462 | } | |
463 | ||
464 | static const struct component_ops vidi_component_ops = { | |
465 | .bind = vidi_bind, | |
466 | .unbind = vidi_unbind, | |
467 | }; | |
468 | ||
56550d94 | 469 | static int vidi_probe(struct platform_device *pdev) |
b73d1230 | 470 | { |
b73d1230 | 471 | struct vidi_context *ctx; |
b73d1230 ID |
472 | int ret; |
473 | ||
f37cd5e8 | 474 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
b73d1230 ID |
475 | if (!ctx) |
476 | return -ENOMEM; | |
477 | ||
7340426a AH |
478 | ctx->display.type = EXYNOS_DISPLAY_TYPE_VIDI; |
479 | ctx->display.ops = &vidi_display_ops; | |
b73d1230 | 480 | ctx->default_win = 0; |
1d50aa9c ID |
481 | ctx->pdev = pdev; |
482 | ||
b73d1230 ID |
483 | INIT_WORK(&ctx->work, vidi_fake_vblank_handler); |
484 | ||
b73d1230 ID |
485 | mutex_init(&ctx->lock); |
486 | ||
f01833cd | 487 | platform_set_drvdata(pdev, ctx); |
b73d1230 | 488 | |
f37cd5e8 ID |
489 | ret = device_create_file(&pdev->dev, &dev_attr_connection); |
490 | if (ret < 0) { | |
1d50aa9c | 491 | DRM_ERROR("failed to create connection sysfs.\n"); |
86650408 | 492 | return ret; |
f37cd5e8 | 493 | } |
b73d1230 | 494 | |
1d50aa9c ID |
495 | ret = component_add(&pdev->dev, &vidi_component_ops); |
496 | if (ret) | |
497 | goto err_remove_file; | |
498 | ||
499 | return ret; | |
500 | ||
501 | err_remove_file: | |
502 | device_remove_file(&pdev->dev, &dev_attr_connection); | |
1d50aa9c ID |
503 | |
504 | return ret; | |
b73d1230 ID |
505 | } |
506 | ||
56550d94 | 507 | static int vidi_remove(struct platform_device *pdev) |
b73d1230 | 508 | { |
f01833cd | 509 | struct vidi_context *ctx = platform_get_drvdata(pdev); |
b73d1230 | 510 | |
d3b62dbf ID |
511 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { |
512 | kfree(ctx->raw_edid); | |
513 | ctx->raw_edid = NULL; | |
f37cd5e8 ID |
514 | |
515 | return -EINVAL; | |
d3b62dbf ID |
516 | } |
517 | ||
1d50aa9c | 518 | component_del(&pdev->dev, &vidi_component_ops); |
1d50aa9c | 519 | |
b73d1230 ID |
520 | return 0; |
521 | } | |
522 | ||
b73d1230 ID |
523 | struct platform_driver vidi_driver = { |
524 | .probe = vidi_probe, | |
56550d94 | 525 | .remove = vidi_remove, |
b73d1230 ID |
526 | .driver = { |
527 | .name = "exynos-drm-vidi", | |
528 | .owner = THIS_MODULE, | |
b73d1230 ID |
529 | }, |
530 | }; |