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Commit | Line | Data |
---|---|---|
e692da4d SH |
1 | /* |
2 | * Freescale i.MX drm driver | |
3 | * | |
4 | * Copyright (C) 2011 Sascha Hauer, Pengutronix | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | */ | |
17b5001b | 16 | #include <linux/component.h> |
e692da4d | 17 | #include <linux/device.h> |
e7d6231e RK |
18 | #include <linux/fb.h> |
19 | #include <linux/module.h> | |
655b43cc | 20 | #include <linux/of_graph.h> |
e692da4d SH |
21 | #include <linux/platform_device.h> |
22 | #include <drm/drmP.h> | |
23 | #include <drm/drm_fb_helper.h> | |
24 | #include <drm/drm_crtc_helper.h> | |
e692da4d SH |
25 | #include <drm/drm_gem_cma_helper.h> |
26 | #include <drm/drm_fb_cma_helper.h> | |
3cb9ae4f | 27 | #include <drm/drm_plane_helper.h> |
6457b971 | 28 | #include <drm/drm_of.h> |
e692da4d SH |
29 | |
30 | #include "imx-drm.h" | |
31 | ||
32 | #define MAX_CRTC 4 | |
33 | ||
655b43cc PZ |
34 | struct imx_drm_component { |
35 | struct device_node *of_node; | |
36 | struct list_head list; | |
37 | }; | |
38 | ||
e692da4d SH |
39 | struct imx_drm_device { |
40 | struct drm_device *drm; | |
887eceac | 41 | struct imx_drm_crtc *crtc[MAX_CRTC]; |
e692da4d SH |
42 | int pipes; |
43 | struct drm_fbdev_cma *fbhelper; | |
44 | }; | |
45 | ||
46 | struct imx_drm_crtc { | |
47 | struct drm_crtc *crtc; | |
e692da4d SH |
48 | int pipe; |
49 | struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs; | |
e692da4d SH |
50 | }; |
51 | ||
8acba02f RK |
52 | static int legacyfb_depth = 16; |
53 | module_param(legacyfb_depth, int, 0444); | |
54 | ||
b8d181e4 PZ |
55 | int imx_drm_crtc_id(struct imx_drm_crtc *crtc) |
56 | { | |
57 | return crtc->pipe; | |
58 | } | |
9c74360f | 59 | EXPORT_SYMBOL_GPL(imx_drm_crtc_id); |
b8d181e4 | 60 | |
e692da4d SH |
61 | static void imx_drm_driver_lastclose(struct drm_device *drm) |
62 | { | |
8acba02f | 63 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) |
e692da4d SH |
64 | struct imx_drm_device *imxdrm = drm->dev_private; |
65 | ||
3f3a7280 | 66 | drm_fbdev_cma_restore_mode(imxdrm->fbhelper); |
8acba02f | 67 | #endif |
e692da4d SH |
68 | } |
69 | ||
70 | static int imx_drm_driver_unload(struct drm_device *drm) | |
71 | { | |
8acba02f | 72 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) |
e692da4d | 73 | struct imx_drm_device *imxdrm = drm->dev_private; |
3e68439b RK |
74 | #endif |
75 | ||
76 | drm_kms_helper_poll_fini(drm); | |
e692da4d | 77 | |
3e68439b | 78 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) |
8acba02f RK |
79 | if (imxdrm->fbhelper) |
80 | drm_fbdev_cma_fini(imxdrm->fbhelper); | |
81 | #endif | |
82 | ||
17b5001b RK |
83 | component_unbind_all(drm->dev, drm); |
84 | ||
020a9ea7 | 85 | drm_vblank_cleanup(drm); |
020a9ea7 | 86 | drm_mode_config_cleanup(drm); |
e692da4d | 87 | |
bfe945c8 SG |
88 | platform_set_drvdata(drm->platformdev, NULL); |
89 | ||
e692da4d SH |
90 | return 0; |
91 | } | |
92 | ||
fdffa6f2 | 93 | static struct imx_drm_crtc *imx_drm_find_crtc(struct drm_crtc *crtc) |
e692da4d | 94 | { |
32266b45 | 95 | struct imx_drm_device *imxdrm = crtc->dev->dev_private; |
887eceac RK |
96 | unsigned i; |
97 | ||
98 | for (i = 0; i < MAX_CRTC; i++) | |
99 | if (imxdrm->crtc[i] && imxdrm->crtc[i]->crtc == crtc) | |
100 | return imxdrm->crtc[i]; | |
e692da4d | 101 | |
e692da4d SH |
102 | return NULL; |
103 | } | |
104 | ||
2872c807 PZ |
105 | int imx_drm_set_bus_format_pins(struct drm_encoder *encoder, u32 bus_format, |
106 | int hsync_pin, int vsync_pin) | |
e692da4d | 107 | { |
e692da4d | 108 | struct imx_drm_crtc_helper_funcs *helper; |
887eceac | 109 | struct imx_drm_crtc *imx_crtc; |
e692da4d | 110 | |
f2d66aad | 111 | imx_crtc = imx_drm_find_crtc(encoder->crtc); |
887eceac RK |
112 | if (!imx_crtc) |
113 | return -EINVAL; | |
e692da4d | 114 | |
e692da4d SH |
115 | helper = &imx_crtc->imx_drm_helper_funcs; |
116 | if (helper->set_interface_pix_fmt) | |
f2d66aad | 117 | return helper->set_interface_pix_fmt(encoder->crtc, |
2872c807 | 118 | bus_format, hsync_pin, vsync_pin); |
e692da4d SH |
119 | return 0; |
120 | } | |
2872c807 | 121 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format_pins); |
2ea42608 | 122 | |
2872c807 | 123 | int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format) |
2ea42608 | 124 | { |
2872c807 | 125 | return imx_drm_set_bus_format_pins(encoder, bus_format, 2, 3); |
2ea42608 | 126 | } |
2872c807 | 127 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format); |
e692da4d SH |
128 | |
129 | int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) | |
130 | { | |
b5ea1492 | 131 | return drm_vblank_get(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
132 | } |
133 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); | |
134 | ||
135 | void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) | |
136 | { | |
b5ea1492 | 137 | drm_vblank_put(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
138 | } |
139 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); | |
140 | ||
141 | void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) | |
142 | { | |
b5ea1492 | 143 | drm_handle_vblank(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
144 | } |
145 | EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); | |
146 | ||
88e72717 | 147 | static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
148 | { |
149 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 150 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d SH |
151 | int ret; |
152 | ||
e692da4d SH |
153 | if (!imx_drm_crtc) |
154 | return -EINVAL; | |
155 | ||
156 | if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank) | |
157 | return -ENOSYS; | |
158 | ||
159 | ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank( | |
160 | imx_drm_crtc->crtc); | |
161 | ||
162 | return ret; | |
163 | } | |
164 | ||
88e72717 | 165 | static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
166 | { |
167 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 168 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d | 169 | |
e692da4d SH |
170 | if (!imx_drm_crtc) |
171 | return; | |
172 | ||
173 | if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank) | |
174 | return; | |
175 | ||
176 | imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); | |
177 | } | |
178 | ||
6ee4d7fe SH |
179 | static void imx_drm_driver_preclose(struct drm_device *drm, |
180 | struct drm_file *file) | |
181 | { | |
182 | int i; | |
183 | ||
184 | if (!file->is_master) | |
185 | return; | |
186 | ||
942325c8 RK |
187 | for (i = 0; i < MAX_CRTC; i++) |
188 | imx_drm_disable_vblank(drm, i); | |
6ee4d7fe SH |
189 | } |
190 | ||
e692da4d SH |
191 | static const struct file_operations imx_drm_driver_fops = { |
192 | .owner = THIS_MODULE, | |
193 | .open = drm_open, | |
194 | .release = drm_release, | |
195 | .unlocked_ioctl = drm_ioctl, | |
196 | .mmap = drm_gem_cma_mmap, | |
197 | .poll = drm_poll, | |
e692da4d SH |
198 | .read = drm_read, |
199 | .llseek = noop_llseek, | |
200 | }; | |
201 | ||
8a51a33b RK |
202 | void imx_drm_connector_destroy(struct drm_connector *connector) |
203 | { | |
34ea3d38 | 204 | drm_connector_unregister(connector); |
8a51a33b RK |
205 | drm_connector_cleanup(connector); |
206 | } | |
207 | EXPORT_SYMBOL_GPL(imx_drm_connector_destroy); | |
208 | ||
209 | void imx_drm_encoder_destroy(struct drm_encoder *encoder) | |
210 | { | |
211 | drm_encoder_cleanup(encoder); | |
212 | } | |
213 | EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy); | |
214 | ||
3e68439b RK |
215 | static void imx_drm_output_poll_changed(struct drm_device *drm) |
216 | { | |
217 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) | |
218 | struct imx_drm_device *imxdrm = drm->dev_private; | |
219 | ||
220 | drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); | |
221 | #endif | |
222 | } | |
223 | ||
1df8b530 RK |
224 | static struct drm_mode_config_funcs imx_drm_mode_config_funcs = { |
225 | .fb_create = drm_fb_cma_create, | |
3e68439b | 226 | .output_poll_changed = imx_drm_output_poll_changed, |
1df8b530 RK |
227 | }; |
228 | ||
e692da4d | 229 | /* |
17b5001b RK |
230 | * Main DRM initialisation. This binds, initialises and registers |
231 | * with DRM the subcomponents of the driver. | |
e692da4d SH |
232 | */ |
233 | static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) | |
234 | { | |
b85f2b5d | 235 | struct imx_drm_device *imxdrm; |
e355e7dd | 236 | struct drm_connector *connector; |
e692da4d SH |
237 | int ret; |
238 | ||
b85f2b5d RK |
239 | imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL); |
240 | if (!imxdrm) | |
241 | return -ENOMEM; | |
242 | ||
e692da4d SH |
243 | imxdrm->drm = drm; |
244 | ||
245 | drm->dev_private = imxdrm; | |
246 | ||
247 | /* | |
248 | * enable drm irq mode. | |
4423843c | 249 | * - with irq_enabled = true, we can use the vblank feature. |
e692da4d SH |
250 | * |
251 | * P.S. note that we wouldn't use drm irq handler but | |
252 | * just specific driver own one instead because | |
253 | * drm framework supports only one irq handler and | |
254 | * drivers can well take care of their interrupts | |
255 | */ | |
4423843c | 256 | drm->irq_enabled = true; |
e692da4d | 257 | |
1df8b530 RK |
258 | /* |
259 | * set max width and height as default value(4096x4096). | |
260 | * this value would be used to check framebuffer size limitation | |
261 | * at drm_mode_addfb(). | |
262 | */ | |
263 | drm->mode_config.min_width = 64; | |
264 | drm->mode_config.min_height = 64; | |
265 | drm->mode_config.max_width = 4096; | |
266 | drm->mode_config.max_height = 4096; | |
267 | drm->mode_config.funcs = &imx_drm_mode_config_funcs; | |
268 | ||
e692da4d | 269 | drm_mode_config_init(drm); |
e692da4d | 270 | |
020a9ea7 | 271 | ret = drm_vblank_init(drm, MAX_CRTC); |
e692da4d | 272 | if (ret) |
8007875f | 273 | goto err_kms; |
e692da4d SH |
274 | |
275 | /* | |
e7d6231e RK |
276 | * with vblank_disable_allowed = true, vblank interrupt will be |
277 | * disabled by drm timer once a current process gives up ownership | |
278 | * of vblank event. (after drm_vblank_put function is called) | |
e692da4d | 279 | */ |
020a9ea7 | 280 | drm->vblank_disable_allowed = true; |
e692da4d | 281 | |
a72f8bee | 282 | platform_set_drvdata(drm->platformdev, drm); |
8d71de61 | 283 | |
17b5001b RK |
284 | /* Now try and bind all our sub-components */ |
285 | ret = component_bind_all(drm->dev, drm); | |
286 | if (ret) | |
ccec7f62 | 287 | goto err_vblank; |
e355e7dd RK |
288 | |
289 | /* | |
290 | * All components are now added, we can publish the connector sysfs | |
291 | * entries to userspace. This will generate hotplug events and so | |
292 | * userspace will expect to be able to access DRM at this point. | |
293 | */ | |
294 | list_for_each_entry(connector, &drm->mode_config.connector_list, head) { | |
34ea3d38 | 295 | ret = drm_connector_register(connector); |
e355e7dd RK |
296 | if (ret) { |
297 | dev_err(drm->dev, | |
34ea3d38 | 298 | "[CONNECTOR:%d:%s] drm_connector_register failed: %d\n", |
e355e7dd | 299 | connector->base.id, |
4a2a450f | 300 | connector->name, ret); |
e355e7dd RK |
301 | goto err_unbind; |
302 | } | |
303 | } | |
304 | ||
8acba02f RK |
305 | /* |
306 | * All components are now initialised, so setup the fb helper. | |
307 | * The fb helper takes copies of key hardware information, so the | |
308 | * crtcs/connectors/encoders must not change after this point. | |
309 | */ | |
310 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) | |
311 | if (legacyfb_depth != 16 && legacyfb_depth != 32) { | |
312 | dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); | |
313 | legacyfb_depth = 16; | |
314 | } | |
315 | imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, | |
316 | drm->mode_config.num_crtc, MAX_CRTC); | |
317 | if (IS_ERR(imxdrm->fbhelper)) { | |
318 | ret = PTR_ERR(imxdrm->fbhelper); | |
319 | imxdrm->fbhelper = NULL; | |
320 | goto err_unbind; | |
321 | } | |
322 | #endif | |
3e68439b RK |
323 | |
324 | drm_kms_helper_poll_init(drm); | |
325 | ||
8007875f | 326 | return 0; |
a72f8bee | 327 | |
e355e7dd RK |
328 | err_unbind: |
329 | component_unbind_all(drm->dev, drm); | |
ccec7f62 | 330 | err_vblank: |
8007875f RK |
331 | drm_vblank_cleanup(drm); |
332 | err_kms: | |
8007875f | 333 | drm_mode_config_cleanup(drm); |
e692da4d SH |
334 | |
335 | return ret; | |
336 | } | |
337 | ||
e692da4d SH |
338 | /* |
339 | * imx_drm_add_crtc - add a new crtc | |
e692da4d | 340 | */ |
32266b45 | 341 | int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, |
43895599 | 342 | struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane, |
e692da4d | 343 | const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs, |
655b43cc | 344 | struct device_node *port) |
e692da4d | 345 | { |
32266b45 | 346 | struct imx_drm_device *imxdrm = drm->dev_private; |
e692da4d | 347 | struct imx_drm_crtc *imx_drm_crtc; |
e692da4d SH |
348 | int ret; |
349 | ||
fd6040ed RK |
350 | /* |
351 | * The vblank arrays are dimensioned by MAX_CRTC - we can't | |
352 | * pass IDs greater than this to those functions. | |
353 | */ | |
e7d6231e RK |
354 | if (imxdrm->pipes >= MAX_CRTC) |
355 | return -EINVAL; | |
fd6040ed | 356 | |
e7d6231e RK |
357 | if (imxdrm->drm->open_count) |
358 | return -EBUSY; | |
e692da4d SH |
359 | |
360 | imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL); | |
e7d6231e RK |
361 | if (!imx_drm_crtc) |
362 | return -ENOMEM; | |
e692da4d SH |
363 | |
364 | imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; | |
365 | imx_drm_crtc->pipe = imxdrm->pipes++; | |
e692da4d | 366 | imx_drm_crtc->crtc = crtc; |
e692da4d | 367 | |
6457b971 RK |
368 | crtc->port = port; |
369 | ||
887eceac | 370 | imxdrm->crtc[imx_drm_crtc->pipe] = imx_drm_crtc; |
e692da4d SH |
371 | |
372 | *new_crtc = imx_drm_crtc; | |
373 | ||
ec9557d7 | 374 | ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256); |
e692da4d SH |
375 | if (ret) |
376 | goto err_register; | |
377 | ||
ec9557d7 RK |
378 | drm_crtc_helper_add(crtc, |
379 | imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); | |
380 | ||
43895599 | 381 | drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, |
ec9557d7 RK |
382 | imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs); |
383 | ||
e692da4d SH |
384 | return 0; |
385 | ||
386 | err_register: | |
887eceac | 387 | imxdrm->crtc[imx_drm_crtc->pipe] = NULL; |
e692da4d | 388 | kfree(imx_drm_crtc); |
e692da4d SH |
389 | return ret; |
390 | } | |
391 | EXPORT_SYMBOL_GPL(imx_drm_add_crtc); | |
392 | ||
393 | /* | |
394 | * imx_drm_remove_crtc - remove a crtc | |
395 | */ | |
396 | int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc) | |
397 | { | |
ccec7f62 | 398 | struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private; |
e692da4d SH |
399 | |
400 | drm_crtc_cleanup(imx_drm_crtc->crtc); | |
401 | ||
887eceac | 402 | imxdrm->crtc[imx_drm_crtc->pipe] = NULL; |
e692da4d | 403 | |
e692da4d SH |
404 | kfree(imx_drm_crtc); |
405 | ||
406 | return 0; | |
407 | } | |
408 | EXPORT_SYMBOL_GPL(imx_drm_remove_crtc); | |
409 | ||
6457b971 RK |
410 | int imx_drm_encoder_parse_of(struct drm_device *drm, |
411 | struct drm_encoder *encoder, struct device_node *np) | |
9e2d410d | 412 | { |
6457b971 | 413 | uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np); |
9e2d410d | 414 | |
6457b971 RK |
415 | /* |
416 | * If we failed to find the CRTC(s) which this encoder is | |
417 | * supposed to be connected to, it's because the CRTC has | |
418 | * not been registered yet. Defer probing, and hope that | |
419 | * the required CRTC is added later. | |
420 | */ | |
421 | if (crtc_mask == 0) | |
422 | return -EPROBE_DEFER; | |
655b43cc | 423 | |
6457b971 | 424 | encoder->possible_crtcs = crtc_mask; |
63bc5164 | 425 | |
6457b971 RK |
426 | /* FIXME: this is the mask of outputs which can clone this output. */ |
427 | encoder->possible_clones = ~0; | |
9e2d410d RK |
428 | |
429 | return 0; | |
430 | } | |
6457b971 | 431 | EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); |
9e2d410d | 432 | |
655b43cc PZ |
433 | /* |
434 | * @node: device tree node containing encoder input ports | |
435 | * @encoder: drm_encoder | |
436 | */ | |
437 | int imx_drm_encoder_get_mux_id(struct device_node *node, | |
438 | struct drm_encoder *encoder) | |
e692da4d | 439 | { |
887eceac | 440 | struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc); |
539bb6a2 | 441 | struct device_node *ep; |
b6babdd9 | 442 | struct of_endpoint endpoint; |
655b43cc | 443 | struct device_node *port; |
b6babdd9 | 444 | int ret; |
e692da4d | 445 | |
655b43cc PZ |
446 | if (!node || !imx_crtc) |
447 | return -EINVAL; | |
448 | ||
539bb6a2 | 449 | for_each_endpoint_of_node(node, ep) { |
655b43cc PZ |
450 | port = of_graph_get_remote_port(ep); |
451 | of_node_put(port); | |
6457b971 | 452 | if (port == imx_crtc->crtc->port) { |
b6babdd9 | 453 | ret = of_graph_parse_endpoint(ep, &endpoint); |
539bb6a2 | 454 | of_node_put(ep); |
c509bdc2 | 455 | return ret ? ret : endpoint.port; |
655b43cc | 456 | } |
539bb6a2 | 457 | } |
e692da4d | 458 | |
655b43cc | 459 | return -EINVAL; |
e692da4d | 460 | } |
ea8d1583 | 461 | EXPORT_SYMBOL_GPL(imx_drm_encoder_get_mux_id); |
e692da4d | 462 | |
baa70943 | 463 | static const struct drm_ioctl_desc imx_drm_ioctls[] = { |
e692da4d SH |
464 | /* none so far */ |
465 | }; | |
466 | ||
467 | static struct drm_driver imx_drm_driver = { | |
bd3665c9 | 468 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
e692da4d SH |
469 | .load = imx_drm_driver_load, |
470 | .unload = imx_drm_driver_unload, | |
e692da4d | 471 | .lastclose = imx_drm_driver_lastclose, |
6ee4d7fe | 472 | .preclose = imx_drm_driver_preclose, |
915b4d11 | 473 | .set_busid = drm_platform_set_busid, |
e692da4d SH |
474 | .gem_free_object = drm_gem_cma_free_object, |
475 | .gem_vm_ops = &drm_gem_cma_vm_ops, | |
476 | .dumb_create = drm_gem_cma_dumb_create, | |
477 | .dumb_map_offset = drm_gem_cma_dumb_map_offset, | |
43387b37 | 478 | .dumb_destroy = drm_gem_dumb_destroy, |
e692da4d | 479 | |
bd3665c9 PZ |
480 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
481 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
482 | .gem_prime_import = drm_gem_prime_import, | |
483 | .gem_prime_export = drm_gem_prime_export, | |
484 | .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, | |
485 | .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, | |
486 | .gem_prime_vmap = drm_gem_cma_prime_vmap, | |
487 | .gem_prime_vunmap = drm_gem_cma_prime_vunmap, | |
488 | .gem_prime_mmap = drm_gem_cma_prime_mmap, | |
b44f8408 | 489 | .get_vblank_counter = drm_vblank_no_hw_counter, |
e692da4d SH |
490 | .enable_vblank = imx_drm_enable_vblank, |
491 | .disable_vblank = imx_drm_disable_vblank, | |
492 | .ioctls = imx_drm_ioctls, | |
493 | .num_ioctls = ARRAY_SIZE(imx_drm_ioctls), | |
494 | .fops = &imx_drm_driver_fops, | |
495 | .name = "imx-drm", | |
496 | .desc = "i.MX DRM graphics", | |
497 | .date = "20120507", | |
498 | .major = 1, | |
499 | .minor = 0, | |
500 | .patchlevel = 0, | |
501 | }; | |
502 | ||
17b5001b RK |
503 | static int compare_of(struct device *dev, void *data) |
504 | { | |
655b43cc | 505 | struct device_node *np = data; |
17b5001b | 506 | |
655b43cc PZ |
507 | /* Special case for LDB, one device for two channels */ |
508 | if (of_node_cmp(np->name, "lvds-channel") == 0) { | |
509 | np = of_get_parent(np); | |
510 | of_node_put(np); | |
17b5001b RK |
511 | } |
512 | ||
655b43cc PZ |
513 | return dev->of_node == np; |
514 | } | |
17b5001b | 515 | |
17b5001b RK |
516 | static int imx_drm_bind(struct device *dev) |
517 | { | |
518 | return drm_platform_init(&imx_drm_driver, to_platform_device(dev)); | |
519 | } | |
520 | ||
521 | static void imx_drm_unbind(struct device *dev) | |
522 | { | |
523 | drm_put_dev(dev_get_drvdata(dev)); | |
524 | } | |
525 | ||
526 | static const struct component_master_ops imx_drm_ops = { | |
17b5001b RK |
527 | .bind = imx_drm_bind, |
528 | .unbind = imx_drm_unbind, | |
529 | }; | |
530 | ||
e692da4d SH |
531 | static int imx_drm_platform_probe(struct platform_device *pdev) |
532 | { | |
9cace32f | 533 | int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops); |
655b43cc | 534 | |
9cace32f LD |
535 | if (!ret) |
536 | ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); | |
655b43cc | 537 | |
9cace32f | 538 | return ret; |
e692da4d SH |
539 | } |
540 | ||
541 | static int imx_drm_platform_remove(struct platform_device *pdev) | |
542 | { | |
17b5001b | 543 | component_master_del(&pdev->dev, &imx_drm_ops); |
e692da4d SH |
544 | return 0; |
545 | } | |
546 | ||
bfe945c8 SG |
547 | #ifdef CONFIG_PM_SLEEP |
548 | static int imx_drm_suspend(struct device *dev) | |
549 | { | |
550 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
551 | ||
552 | /* The drm_dev is NULL before .load hook is called */ | |
553 | if (drm_dev == NULL) | |
554 | return 0; | |
555 | ||
556 | drm_kms_helper_poll_disable(drm_dev); | |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | static int imx_drm_resume(struct device *dev) | |
562 | { | |
563 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
564 | ||
565 | if (drm_dev == NULL) | |
566 | return 0; | |
567 | ||
568 | drm_helper_resume_force_mode(drm_dev); | |
569 | drm_kms_helper_poll_enable(drm_dev); | |
570 | ||
571 | return 0; | |
572 | } | |
573 | #endif | |
574 | ||
575 | static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume); | |
576 | ||
17b5001b | 577 | static const struct of_device_id imx_drm_dt_ids[] = { |
655b43cc | 578 | { .compatible = "fsl,imx-display-subsystem", }, |
17b5001b RK |
579 | { /* sentinel */ }, |
580 | }; | |
581 | MODULE_DEVICE_TABLE(of, imx_drm_dt_ids); | |
582 | ||
e692da4d SH |
583 | static struct platform_driver imx_drm_pdrv = { |
584 | .probe = imx_drm_platform_probe, | |
99c28f10 | 585 | .remove = imx_drm_platform_remove, |
e692da4d | 586 | .driver = { |
e692da4d | 587 | .name = "imx-drm", |
bfe945c8 | 588 | .pm = &imx_drm_pm_ops, |
17b5001b | 589 | .of_match_table = imx_drm_dt_ids, |
e692da4d SH |
590 | }, |
591 | }; | |
b85f2b5d | 592 | module_platform_driver(imx_drm_pdrv); |
e692da4d SH |
593 | |
594 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); | |
595 | MODULE_DESCRIPTION("i.MX drm driver core"); | |
596 | MODULE_LICENSE("GPL"); |