Commit | Line | Data |
---|---|---|
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> |
8574e927 | 18 | #include <linux/timer.h> |
b73d1230 ID |
19 | |
20 | #include <drm/exynos_drm.h> | |
21 | ||
760285e7 DH |
22 | #include <drm/drm_edid.h> |
23 | #include <drm/drm_crtc_helper.h> | |
4ea9526b | 24 | #include <drm/drm_atomic_helper.h> |
b73d1230 ID |
25 | |
26 | #include "exynos_drm_drv.h" | |
27 | #include "exynos_drm_crtc.h" | |
0488f50e | 28 | #include "exynos_drm_fb.h" |
7ee14cdc | 29 | #include "exynos_drm_plane.h" |
e30655d0 | 30 | #include "exynos_drm_vidi.h" |
b73d1230 | 31 | |
8574e927 AH |
32 | /* VIDI uses fixed refresh rate of 50Hz */ |
33 | #define VIDI_REFRESH_TIME (1000 / 50) | |
34 | ||
b73d1230 ID |
35 | /* vidi has totally three virtual windows. */ |
36 | #define WINDOWS_NR 3 | |
37 | ||
ce6cb556 SP |
38 | #define ctx_from_connector(c) container_of(c, struct vidi_context, \ |
39 | connector) | |
b73d1230 | 40 | |
b73d1230 | 41 | struct vidi_context { |
2b8376c8 | 42 | struct drm_encoder encoder; |
1d50aa9c | 43 | struct platform_device *pdev; |
080be03d | 44 | struct drm_device *drm_dev; |
93bca243 | 45 | struct exynos_drm_crtc *crtc; |
ce6cb556 | 46 | struct drm_connector connector; |
7ee14cdc | 47 | struct exynos_drm_plane planes[WINDOWS_NR]; |
b73d1230 ID |
48 | struct edid *raw_edid; |
49 | unsigned int clkdiv; | |
b73d1230 | 50 | unsigned int connected; |
b73d1230 | 51 | bool suspended; |
8574e927 | 52 | struct timer_list timer; |
b73d1230 ID |
53 | struct mutex lock; |
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 | ||
8574e927 AH |
105 | mod_timer(&ctx->timer, |
106 | jiffies + msecs_to_jiffies(VIDI_REFRESH_TIME) - 1); | |
291257cf | 107 | |
b73d1230 ID |
108 | return 0; |
109 | } | |
110 | ||
93bca243 | 111 | static void vidi_disable_vblank(struct exynos_drm_crtc *crtc) |
b73d1230 | 112 | { |
b73d1230 ID |
113 | } |
114 | ||
1e1d1393 GP |
115 | static void vidi_update_plane(struct exynos_drm_crtc *crtc, |
116 | struct exynos_drm_plane *plane) | |
b73d1230 | 117 | { |
0488f50e | 118 | struct drm_plane_state *state = plane->base.state; |
93bca243 | 119 | struct vidi_context *ctx = crtc->ctx; |
0488f50e | 120 | dma_addr_t addr; |
b73d1230 | 121 | |
b73d1230 ID |
122 | if (ctx->suspended) |
123 | return; | |
124 | ||
0488f50e MS |
125 | addr = exynos_drm_fb_dma_addr(state->fb, 0); |
126 | DRM_DEBUG_KMS("dma_addr = %pad\n", &addr); | |
b73d1230 ID |
127 | } |
128 | ||
3cecda03 | 129 | static void vidi_enable(struct exynos_drm_crtc *crtc) |
af65c804 | 130 | { |
3cecda03 | 131 | struct vidi_context *ctx = crtc->ctx; |
7ee14cdc | 132 | |
3cecda03 | 133 | mutex_lock(&ctx->lock); |
af65c804 | 134 | |
3cecda03 | 135 | ctx->suspended = false; |
af65c804 | 136 | |
3cecda03 | 137 | mutex_unlock(&ctx->lock); |
8574e927 AH |
138 | |
139 | drm_crtc_vblank_on(&crtc->base); | |
af65c804 SP |
140 | } |
141 | ||
3cecda03 | 142 | static void vidi_disable(struct exynos_drm_crtc *crtc) |
af65c804 | 143 | { |
93bca243 | 144 | struct vidi_context *ctx = crtc->ctx; |
af65c804 | 145 | |
8574e927 AH |
146 | drm_crtc_vblank_off(&crtc->base); |
147 | ||
af65c804 SP |
148 | mutex_lock(&ctx->lock); |
149 | ||
3cecda03 | 150 | ctx->suspended = true; |
af65c804 SP |
151 | |
152 | mutex_unlock(&ctx->lock); | |
153 | } | |
154 | ||
f3aaf762 | 155 | static const struct exynos_drm_crtc_ops vidi_crtc_ops = { |
3cecda03 GP |
156 | .enable = vidi_enable, |
157 | .disable = vidi_disable, | |
1c6244c3 SP |
158 | .enable_vblank = vidi_enable_vblank, |
159 | .disable_vblank = vidi_disable_vblank, | |
9cc7610a | 160 | .update_plane = vidi_update_plane, |
a392276d | 161 | .atomic_flush = exynos_crtc_handle_event, |
b73d1230 ID |
162 | }; |
163 | ||
e99e88a9 | 164 | static void vidi_fake_vblank_timer(struct timer_list *t) |
b73d1230 | 165 | { |
e99e88a9 | 166 | struct vidi_context *ctx = from_timer(ctx, t, timer); |
b73d1230 | 167 | |
8574e927 AH |
168 | if (drm_crtc_handle_vblank(&ctx->crtc->base)) |
169 | mod_timer(&ctx->timer, | |
170 | jiffies + msecs_to_jiffies(VIDI_REFRESH_TIME) - 1); | |
b73d1230 ID |
171 | } |
172 | ||
c5f2f0c4 | 173 | static ssize_t vidi_show_connection(struct device *dev, |
b73d1230 ID |
174 | struct device_attribute *attr, char *buf) |
175 | { | |
f01833cd | 176 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 | 177 | int rc; |
b73d1230 ID |
178 | |
179 | mutex_lock(&ctx->lock); | |
180 | ||
181 | rc = sprintf(buf, "%d\n", ctx->connected); | |
182 | ||
183 | mutex_unlock(&ctx->lock); | |
184 | ||
185 | return rc; | |
186 | } | |
187 | ||
c5f2f0c4 | 188 | static ssize_t vidi_store_connection(struct device *dev, |
b73d1230 ID |
189 | struct device_attribute *attr, |
190 | const char *buf, size_t len) | |
191 | { | |
f01833cd | 192 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 ID |
193 | int ret; |
194 | ||
b73d1230 ID |
195 | ret = kstrtoint(buf, 0, &ctx->connected); |
196 | if (ret) | |
197 | return ret; | |
198 | ||
199 | if (ctx->connected > 1) | |
200 | return -EINVAL; | |
201 | ||
d07d39df ID |
202 | /* use fake edid data for test. */ |
203 | if (!ctx->raw_edid) | |
204 | ctx->raw_edid = (struct edid *)fake_edid_info; | |
205 | ||
d7b8478a ID |
206 | /* if raw_edid isn't same as fake data then it can't be tested. */ |
207 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { | |
208 | DRM_DEBUG_KMS("edid data is not fake data.\n"); | |
209 | return -EINVAL; | |
210 | } | |
211 | ||
b73d1230 ID |
212 | DRM_DEBUG_KMS("requested connection.\n"); |
213 | ||
080be03d | 214 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
215 | |
216 | return len; | |
217 | } | |
218 | ||
219 | static DEVICE_ATTR(connection, 0644, vidi_show_connection, | |
220 | vidi_store_connection); | |
221 | ||
222 | int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, | |
223 | struct drm_file *file_priv) | |
224 | { | |
cf67cc9a | 225 | struct vidi_context *ctx = dev_get_drvdata(drm_dev->dev); |
b73d1230 ID |
226 | struct drm_exynos_vidi_connection *vidi = data; |
227 | ||
b73d1230 ID |
228 | if (!vidi) { |
229 | DRM_DEBUG_KMS("user data for vidi is null.\n"); | |
230 | return -EINVAL; | |
231 | } | |
232 | ||
b73d1230 ID |
233 | if (vidi->connection > 1) { |
234 | DRM_DEBUG_KMS("connection should be 0 or 1.\n"); | |
235 | return -EINVAL; | |
236 | } | |
237 | ||
b73d1230 ID |
238 | if (ctx->connected == vidi->connection) { |
239 | DRM_DEBUG_KMS("same connection request.\n"); | |
240 | return -EINVAL; | |
241 | } | |
242 | ||
d3b62dbf | 243 | if (vidi->connection) { |
c5f2f0c4 MS |
244 | struct edid *raw_edid; |
245 | ||
246 | raw_edid = (struct edid *)(unsigned long)vidi->edid; | |
e7808df1 SWK |
247 | if (!drm_edid_is_valid(raw_edid)) { |
248 | DRM_DEBUG_KMS("edid data is invalid.\n"); | |
d3b62dbf ID |
249 | return -EINVAL; |
250 | } | |
4ddc773b | 251 | ctx->raw_edid = drm_edid_duplicate(raw_edid); |
d3b62dbf ID |
252 | if (!ctx->raw_edid) { |
253 | DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); | |
254 | return -ENOMEM; | |
255 | } | |
d3b62dbf ID |
256 | } else { |
257 | /* | |
258 | * with connection = 0, free raw_edid | |
259 | * only if raw edid data isn't same as fake data. | |
260 | */ | |
261 | if (ctx->raw_edid && ctx->raw_edid != | |
262 | (struct edid *)fake_edid_info) { | |
263 | kfree(ctx->raw_edid); | |
264 | ctx->raw_edid = NULL; | |
265 | } | |
266 | } | |
b73d1230 ID |
267 | |
268 | ctx->connected = vidi->connection; | |
080be03d | 269 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
270 | |
271 | return 0; | |
272 | } | |
273 | ||
ce6cb556 SP |
274 | static enum drm_connector_status vidi_detect(struct drm_connector *connector, |
275 | bool force) | |
276 | { | |
277 | struct vidi_context *ctx = ctx_from_connector(connector); | |
278 | ||
279 | /* | |
280 | * connection request would come from user side | |
281 | * to do hotplug through specific ioctl. | |
282 | */ | |
283 | return ctx->connected ? connector_status_connected : | |
284 | connector_status_disconnected; | |
285 | } | |
286 | ||
287 | static void vidi_connector_destroy(struct drm_connector *connector) | |
288 | { | |
289 | } | |
290 | ||
800ba2b5 | 291 | static const struct drm_connector_funcs vidi_connector_funcs = { |
ce6cb556 SP |
292 | .fill_modes = drm_helper_probe_single_connector_modes, |
293 | .detect = vidi_detect, | |
294 | .destroy = vidi_connector_destroy, | |
4ea9526b GP |
295 | .reset = drm_atomic_helper_connector_reset, |
296 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, | |
297 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, | |
ce6cb556 SP |
298 | }; |
299 | ||
300 | static int vidi_get_modes(struct drm_connector *connector) | |
301 | { | |
302 | struct vidi_context *ctx = ctx_from_connector(connector); | |
303 | struct edid *edid; | |
304 | int edid_len; | |
305 | ||
306 | /* | |
307 | * the edid data comes from user side and it would be set | |
308 | * to ctx->raw_edid through specific ioctl. | |
309 | */ | |
310 | if (!ctx->raw_edid) { | |
311 | DRM_DEBUG_KMS("raw_edid is null.\n"); | |
312 | return -EFAULT; | |
313 | } | |
314 | ||
315 | edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; | |
316 | edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); | |
317 | if (!edid) { | |
318 | DRM_DEBUG_KMS("failed to allocate edid\n"); | |
319 | return -ENOMEM; | |
320 | } | |
321 | ||
322 | drm_mode_connector_update_edid_property(connector, edid); | |
323 | ||
324 | return drm_add_edid_modes(connector, edid); | |
325 | } | |
326 | ||
800ba2b5 | 327 | static const struct drm_connector_helper_funcs vidi_connector_helper_funcs = { |
ce6cb556 | 328 | .get_modes = vidi_get_modes, |
ce6cb556 SP |
329 | }; |
330 | ||
2b8376c8 | 331 | static int vidi_create_connector(struct drm_encoder *encoder) |
ce6cb556 | 332 | { |
2b8376c8 | 333 | struct vidi_context *ctx = encoder_to_vidi(encoder); |
ce6cb556 SP |
334 | struct drm_connector *connector = &ctx->connector; |
335 | int ret; | |
336 | ||
ce6cb556 SP |
337 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
338 | ||
339 | ret = drm_connector_init(ctx->drm_dev, connector, | |
340 | &vidi_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); | |
341 | if (ret) { | |
342 | DRM_ERROR("Failed to initialize connector with drm\n"); | |
343 | return ret; | |
344 | } | |
345 | ||
346 | drm_connector_helper_add(connector, &vidi_connector_helper_funcs); | |
ce6cb556 SP |
347 | drm_mode_connector_attach_encoder(connector, encoder); |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
2b8376c8 GP |
352 | static void exynos_vidi_mode_set(struct drm_encoder *encoder, |
353 | struct drm_display_mode *mode, | |
354 | struct drm_display_mode *adjusted_mode) | |
355 | { | |
356 | } | |
357 | ||
358 | static void exynos_vidi_enable(struct drm_encoder *encoder) | |
359 | { | |
360 | } | |
361 | ||
362 | static void exynos_vidi_disable(struct drm_encoder *encoder) | |
363 | { | |
364 | } | |
365 | ||
800ba2b5 | 366 | static const struct drm_encoder_helper_funcs exynos_vidi_encoder_helper_funcs = { |
2b8376c8 GP |
367 | .mode_set = exynos_vidi_mode_set, |
368 | .enable = exynos_vidi_enable, | |
369 | .disable = exynos_vidi_disable, | |
370 | }; | |
371 | ||
800ba2b5 | 372 | static const struct drm_encoder_funcs exynos_vidi_encoder_funcs = { |
2b8376c8 GP |
373 | .destroy = drm_encoder_cleanup, |
374 | }; | |
375 | ||
1d50aa9c | 376 | static int vidi_bind(struct device *dev, struct device *master, void *data) |
f37cd5e8 | 377 | { |
f01833cd | 378 | struct vidi_context *ctx = dev_get_drvdata(dev); |
1d50aa9c | 379 | struct drm_device *drm_dev = data; |
2b8376c8 | 380 | struct drm_encoder *encoder = &ctx->encoder; |
7ee14cdc | 381 | struct exynos_drm_plane *exynos_plane; |
fd2d2fc2 MS |
382 | struct exynos_drm_plane_config plane_config = { 0 }; |
383 | unsigned int i; | |
1ca582f1 | 384 | int ret; |
f37cd5e8 | 385 | |
2949390e | 386 | ctx->drm_dev = drm_dev; |
0f04cf8d | 387 | |
fd2d2fc2 MS |
388 | plane_config.pixel_formats = formats; |
389 | plane_config.num_pixel_formats = ARRAY_SIZE(formats); | |
390 | ||
391 | for (i = 0; i < WINDOWS_NR; i++) { | |
392 | plane_config.zpos = i; | |
393 | plane_config.type = vidi_win_types[i]; | |
394 | ||
40bdfb0a | 395 | ret = exynos_plane_init(drm_dev, &ctx->planes[i], i, |
2c82607b | 396 | &plane_config); |
7ee14cdc GP |
397 | if (ret) |
398 | return ret; | |
399 | } | |
400 | ||
5d3d0995 | 401 | exynos_plane = &ctx->planes[DEFAULT_WIN]; |
7ee14cdc | 402 | ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base, |
d644951c | 403 | EXYNOS_DISPLAY_TYPE_VIDI, &vidi_crtc_ops, ctx); |
93bca243 | 404 | if (IS_ERR(ctx->crtc)) { |
f37cd5e8 | 405 | DRM_ERROR("failed to create crtc.\n"); |
93bca243 | 406 | return PTR_ERR(ctx->crtc); |
f37cd5e8 ID |
407 | } |
408 | ||
2b8376c8 | 409 | drm_encoder_init(drm_dev, encoder, &exynos_vidi_encoder_funcs, |
13a3d91f | 410 | DRM_MODE_ENCODER_TMDS, NULL); |
2b8376c8 GP |
411 | |
412 | drm_encoder_helper_add(encoder, &exynos_vidi_encoder_helper_funcs); | |
a2986e80 | 413 | |
1ca582f1 AH |
414 | ret = exynos_drm_set_possible_crtcs(encoder, EXYNOS_DISPLAY_TYPE_VIDI); |
415 | if (ret < 0) | |
416 | return ret; | |
417 | ||
2b8376c8 | 418 | ret = vidi_create_connector(encoder); |
f37cd5e8 | 419 | if (ret) { |
a2986e80 | 420 | DRM_ERROR("failed to create connector ret = %d\n", ret); |
2b8376c8 | 421 | drm_encoder_cleanup(encoder); |
f37cd5e8 ID |
422 | return ret; |
423 | } | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
1d50aa9c ID |
428 | |
429 | static void vidi_unbind(struct device *dev, struct device *master, void *data) | |
430 | { | |
8574e927 AH |
431 | struct vidi_context *ctx = dev_get_drvdata(dev); |
432 | ||
433 | del_timer_sync(&ctx->timer); | |
1d50aa9c ID |
434 | } |
435 | ||
436 | static const struct component_ops vidi_component_ops = { | |
437 | .bind = vidi_bind, | |
438 | .unbind = vidi_unbind, | |
439 | }; | |
440 | ||
56550d94 | 441 | static int vidi_probe(struct platform_device *pdev) |
b73d1230 | 442 | { |
b73d1230 | 443 | struct vidi_context *ctx; |
b73d1230 ID |
444 | int ret; |
445 | ||
f37cd5e8 | 446 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
b73d1230 ID |
447 | if (!ctx) |
448 | return -ENOMEM; | |
449 | ||
1d50aa9c ID |
450 | ctx->pdev = pdev; |
451 | ||
e99e88a9 | 452 | timer_setup(&ctx->timer, vidi_fake_vblank_timer, 0); |
b73d1230 | 453 | |
b73d1230 ID |
454 | mutex_init(&ctx->lock); |
455 | ||
f01833cd | 456 | platform_set_drvdata(pdev, ctx); |
b73d1230 | 457 | |
f37cd5e8 ID |
458 | ret = device_create_file(&pdev->dev, &dev_attr_connection); |
459 | if (ret < 0) { | |
1d50aa9c | 460 | DRM_ERROR("failed to create connection sysfs.\n"); |
86650408 | 461 | return ret; |
f37cd5e8 | 462 | } |
b73d1230 | 463 | |
1d50aa9c ID |
464 | ret = component_add(&pdev->dev, &vidi_component_ops); |
465 | if (ret) | |
466 | goto err_remove_file; | |
467 | ||
468 | return ret; | |
469 | ||
470 | err_remove_file: | |
471 | device_remove_file(&pdev->dev, &dev_attr_connection); | |
1d50aa9c ID |
472 | |
473 | return ret; | |
b73d1230 ID |
474 | } |
475 | ||
56550d94 | 476 | static int vidi_remove(struct platform_device *pdev) |
b73d1230 | 477 | { |
f01833cd | 478 | struct vidi_context *ctx = platform_get_drvdata(pdev); |
b73d1230 | 479 | |
d3b62dbf ID |
480 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { |
481 | kfree(ctx->raw_edid); | |
482 | ctx->raw_edid = NULL; | |
f37cd5e8 ID |
483 | |
484 | return -EINVAL; | |
d3b62dbf ID |
485 | } |
486 | ||
1d50aa9c | 487 | component_del(&pdev->dev, &vidi_component_ops); |
1d50aa9c | 488 | |
b73d1230 ID |
489 | return 0; |
490 | } | |
491 | ||
b73d1230 ID |
492 | struct platform_driver vidi_driver = { |
493 | .probe = vidi_probe, | |
56550d94 | 494 | .remove = vidi_remove, |
b73d1230 ID |
495 | .driver = { |
496 | .name = "exynos-drm-vidi", | |
497 | .owner = THIS_MODULE, | |
b73d1230 ID |
498 | }, |
499 | }; |