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> | |
e692da4d SH |
20 | #include <linux/platform_device.h> |
21 | #include <drm/drmP.h> | |
22 | #include <drm/drm_fb_helper.h> | |
23 | #include <drm/drm_crtc_helper.h> | |
e692da4d SH |
24 | #include <drm/drm_gem_cma_helper.h> |
25 | #include <drm/drm_fb_cma_helper.h> | |
3cb9ae4f | 26 | #include <drm/drm_plane_helper.h> |
6457b971 | 27 | #include <drm/drm_of.h> |
e692da4d SH |
28 | |
29 | #include "imx-drm.h" | |
30 | ||
31 | #define MAX_CRTC 4 | |
32 | ||
655b43cc PZ |
33 | struct imx_drm_component { |
34 | struct device_node *of_node; | |
35 | struct list_head list; | |
36 | }; | |
37 | ||
e692da4d SH |
38 | struct imx_drm_device { |
39 | struct drm_device *drm; | |
887eceac | 40 | struct imx_drm_crtc *crtc[MAX_CRTC]; |
d2ab8ad9 | 41 | unsigned int pipes; |
e692da4d SH |
42 | struct drm_fbdev_cma *fbhelper; |
43 | }; | |
44 | ||
45 | struct imx_drm_crtc { | |
46 | struct drm_crtc *crtc; | |
e692da4d | 47 | struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs; |
e692da4d SH |
48 | }; |
49 | ||
c1ff5a7a | 50 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
8acba02f RK |
51 | static int legacyfb_depth = 16; |
52 | module_param(legacyfb_depth, int, 0444); | |
c1ff5a7a | 53 | #endif |
8acba02f | 54 | |
d2ab8ad9 | 55 | unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc) |
b8d181e4 | 56 | { |
d4b20e4d | 57 | return drm_crtc_index(crtc->crtc); |
b8d181e4 | 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 | { | |
63 | struct imx_drm_device *imxdrm = drm->dev_private; | |
64 | ||
3f3a7280 | 65 | drm_fbdev_cma_restore_mode(imxdrm->fbhelper); |
e692da4d SH |
66 | } |
67 | ||
68 | static int imx_drm_driver_unload(struct drm_device *drm) | |
69 | { | |
70 | struct imx_drm_device *imxdrm = drm->dev_private; | |
3e68439b RK |
71 | |
72 | drm_kms_helper_poll_fini(drm); | |
e692da4d | 73 | |
8acba02f RK |
74 | if (imxdrm->fbhelper) |
75 | drm_fbdev_cma_fini(imxdrm->fbhelper); | |
8acba02f | 76 | |
17b5001b RK |
77 | component_unbind_all(drm->dev, drm); |
78 | ||
020a9ea7 | 79 | drm_vblank_cleanup(drm); |
020a9ea7 | 80 | drm_mode_config_cleanup(drm); |
e692da4d | 81 | |
bfe945c8 SG |
82 | platform_set_drvdata(drm->platformdev, NULL); |
83 | ||
e692da4d SH |
84 | return 0; |
85 | } | |
86 | ||
fdffa6f2 | 87 | static struct imx_drm_crtc *imx_drm_find_crtc(struct drm_crtc *crtc) |
e692da4d | 88 | { |
32266b45 | 89 | struct imx_drm_device *imxdrm = crtc->dev->dev_private; |
887eceac RK |
90 | unsigned i; |
91 | ||
92 | for (i = 0; i < MAX_CRTC; i++) | |
93 | if (imxdrm->crtc[i] && imxdrm->crtc[i]->crtc == crtc) | |
94 | return imxdrm->crtc[i]; | |
e692da4d | 95 | |
e692da4d SH |
96 | return NULL; |
97 | } | |
98 | ||
2872c807 PZ |
99 | int imx_drm_set_bus_format_pins(struct drm_encoder *encoder, u32 bus_format, |
100 | int hsync_pin, int vsync_pin) | |
e692da4d | 101 | { |
e692da4d | 102 | struct imx_drm_crtc_helper_funcs *helper; |
887eceac | 103 | struct imx_drm_crtc *imx_crtc; |
e692da4d | 104 | |
f2d66aad | 105 | imx_crtc = imx_drm_find_crtc(encoder->crtc); |
887eceac RK |
106 | if (!imx_crtc) |
107 | return -EINVAL; | |
e692da4d | 108 | |
e692da4d SH |
109 | helper = &imx_crtc->imx_drm_helper_funcs; |
110 | if (helper->set_interface_pix_fmt) | |
f2d66aad | 111 | return helper->set_interface_pix_fmt(encoder->crtc, |
2872c807 | 112 | bus_format, hsync_pin, vsync_pin); |
e692da4d SH |
113 | return 0; |
114 | } | |
2872c807 | 115 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format_pins); |
2ea42608 | 116 | |
2872c807 | 117 | int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format) |
2ea42608 | 118 | { |
2872c807 | 119 | return imx_drm_set_bus_format_pins(encoder, bus_format, 2, 3); |
2ea42608 | 120 | } |
2872c807 | 121 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format); |
e692da4d SH |
122 | |
123 | int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) | |
124 | { | |
d4b20e4d | 125 | return drm_crtc_vblank_get(imx_drm_crtc->crtc); |
e692da4d SH |
126 | } |
127 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); | |
128 | ||
129 | void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) | |
130 | { | |
d4b20e4d | 131 | drm_crtc_vblank_put(imx_drm_crtc->crtc); |
e692da4d SH |
132 | } |
133 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); | |
134 | ||
135 | void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) | |
136 | { | |
d4b20e4d | 137 | drm_crtc_handle_vblank(imx_drm_crtc->crtc); |
e692da4d SH |
138 | } |
139 | EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); | |
140 | ||
88e72717 | 141 | static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
142 | { |
143 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 144 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d SH |
145 | int ret; |
146 | ||
e692da4d SH |
147 | if (!imx_drm_crtc) |
148 | return -EINVAL; | |
149 | ||
150 | if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank) | |
151 | return -ENOSYS; | |
152 | ||
153 | ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank( | |
154 | imx_drm_crtc->crtc); | |
155 | ||
156 | return ret; | |
157 | } | |
158 | ||
88e72717 | 159 | static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
160 | { |
161 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 162 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d | 163 | |
e692da4d SH |
164 | if (!imx_drm_crtc) |
165 | return; | |
166 | ||
167 | if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank) | |
168 | return; | |
169 | ||
170 | imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); | |
171 | } | |
172 | ||
173 | static const struct file_operations imx_drm_driver_fops = { | |
174 | .owner = THIS_MODULE, | |
175 | .open = drm_open, | |
176 | .release = drm_release, | |
177 | .unlocked_ioctl = drm_ioctl, | |
178 | .mmap = drm_gem_cma_mmap, | |
179 | .poll = drm_poll, | |
e692da4d SH |
180 | .read = drm_read, |
181 | .llseek = noop_llseek, | |
182 | }; | |
183 | ||
8a51a33b RK |
184 | void imx_drm_connector_destroy(struct drm_connector *connector) |
185 | { | |
34ea3d38 | 186 | drm_connector_unregister(connector); |
8a51a33b RK |
187 | drm_connector_cleanup(connector); |
188 | } | |
189 | EXPORT_SYMBOL_GPL(imx_drm_connector_destroy); | |
190 | ||
191 | void imx_drm_encoder_destroy(struct drm_encoder *encoder) | |
192 | { | |
193 | drm_encoder_cleanup(encoder); | |
194 | } | |
195 | EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy); | |
196 | ||
3e68439b RK |
197 | static void imx_drm_output_poll_changed(struct drm_device *drm) |
198 | { | |
3e68439b RK |
199 | struct imx_drm_device *imxdrm = drm->dev_private; |
200 | ||
201 | drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); | |
3e68439b RK |
202 | } |
203 | ||
7ae847dd | 204 | static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = { |
1df8b530 | 205 | .fb_create = drm_fb_cma_create, |
3e68439b | 206 | .output_poll_changed = imx_drm_output_poll_changed, |
1df8b530 RK |
207 | }; |
208 | ||
e692da4d | 209 | /* |
17b5001b RK |
210 | * Main DRM initialisation. This binds, initialises and registers |
211 | * with DRM the subcomponents of the driver. | |
e692da4d SH |
212 | */ |
213 | static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) | |
214 | { | |
b85f2b5d | 215 | struct imx_drm_device *imxdrm; |
e355e7dd | 216 | struct drm_connector *connector; |
e692da4d SH |
217 | int ret; |
218 | ||
b85f2b5d RK |
219 | imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL); |
220 | if (!imxdrm) | |
221 | return -ENOMEM; | |
222 | ||
e692da4d SH |
223 | imxdrm->drm = drm; |
224 | ||
225 | drm->dev_private = imxdrm; | |
226 | ||
227 | /* | |
228 | * enable drm irq mode. | |
4423843c | 229 | * - with irq_enabled = true, we can use the vblank feature. |
e692da4d SH |
230 | * |
231 | * P.S. note that we wouldn't use drm irq handler but | |
232 | * just specific driver own one instead because | |
233 | * drm framework supports only one irq handler and | |
234 | * drivers can well take care of their interrupts | |
235 | */ | |
4423843c | 236 | drm->irq_enabled = true; |
e692da4d | 237 | |
1df8b530 RK |
238 | /* |
239 | * set max width and height as default value(4096x4096). | |
240 | * this value would be used to check framebuffer size limitation | |
241 | * at drm_mode_addfb(). | |
242 | */ | |
243 | drm->mode_config.min_width = 64; | |
244 | drm->mode_config.min_height = 64; | |
245 | drm->mode_config.max_width = 4096; | |
246 | drm->mode_config.max_height = 4096; | |
247 | drm->mode_config.funcs = &imx_drm_mode_config_funcs; | |
248 | ||
e692da4d | 249 | drm_mode_config_init(drm); |
e692da4d | 250 | |
020a9ea7 | 251 | ret = drm_vblank_init(drm, MAX_CRTC); |
e692da4d | 252 | if (ret) |
8007875f | 253 | goto err_kms; |
e692da4d SH |
254 | |
255 | /* | |
e7d6231e RK |
256 | * with vblank_disable_allowed = true, vblank interrupt will be |
257 | * disabled by drm timer once a current process gives up ownership | |
258 | * of vblank event. (after drm_vblank_put function is called) | |
e692da4d | 259 | */ |
020a9ea7 | 260 | drm->vblank_disable_allowed = true; |
e692da4d | 261 | |
a72f8bee | 262 | platform_set_drvdata(drm->platformdev, drm); |
8d71de61 | 263 | |
17b5001b RK |
264 | /* Now try and bind all our sub-components */ |
265 | ret = component_bind_all(drm->dev, drm); | |
266 | if (ret) | |
ccec7f62 | 267 | goto err_vblank; |
e355e7dd RK |
268 | |
269 | /* | |
270 | * All components are now added, we can publish the connector sysfs | |
271 | * entries to userspace. This will generate hotplug events and so | |
272 | * userspace will expect to be able to access DRM at this point. | |
273 | */ | |
274 | list_for_each_entry(connector, &drm->mode_config.connector_list, head) { | |
34ea3d38 | 275 | ret = drm_connector_register(connector); |
e355e7dd RK |
276 | if (ret) { |
277 | dev_err(drm->dev, | |
34ea3d38 | 278 | "[CONNECTOR:%d:%s] drm_connector_register failed: %d\n", |
e355e7dd | 279 | connector->base.id, |
4a2a450f | 280 | connector->name, ret); |
e355e7dd RK |
281 | goto err_unbind; |
282 | } | |
283 | } | |
284 | ||
8acba02f RK |
285 | /* |
286 | * All components are now initialised, so setup the fb helper. | |
287 | * The fb helper takes copies of key hardware information, so the | |
288 | * crtcs/connectors/encoders must not change after this point. | |
289 | */ | |
c1ff5a7a | 290 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
8acba02f RK |
291 | if (legacyfb_depth != 16 && legacyfb_depth != 32) { |
292 | dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); | |
293 | legacyfb_depth = 16; | |
294 | } | |
4314e19e | 295 | drm_helper_disable_unused_functions(drm); |
8acba02f RK |
296 | imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, |
297 | drm->mode_config.num_crtc, MAX_CRTC); | |
298 | if (IS_ERR(imxdrm->fbhelper)) { | |
299 | ret = PTR_ERR(imxdrm->fbhelper); | |
300 | imxdrm->fbhelper = NULL; | |
301 | goto err_unbind; | |
302 | } | |
303 | #endif | |
3e68439b RK |
304 | |
305 | drm_kms_helper_poll_init(drm); | |
306 | ||
8007875f | 307 | return 0; |
a72f8bee | 308 | |
e355e7dd RK |
309 | err_unbind: |
310 | component_unbind_all(drm->dev, drm); | |
ccec7f62 | 311 | err_vblank: |
8007875f RK |
312 | drm_vblank_cleanup(drm); |
313 | err_kms: | |
8007875f | 314 | drm_mode_config_cleanup(drm); |
e692da4d SH |
315 | |
316 | return ret; | |
317 | } | |
318 | ||
e692da4d SH |
319 | /* |
320 | * imx_drm_add_crtc - add a new crtc | |
e692da4d | 321 | */ |
32266b45 | 322 | int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, |
43895599 | 323 | struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane, |
e692da4d | 324 | const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs, |
655b43cc | 325 | struct device_node *port) |
e692da4d | 326 | { |
32266b45 | 327 | struct imx_drm_device *imxdrm = drm->dev_private; |
e692da4d | 328 | struct imx_drm_crtc *imx_drm_crtc; |
e692da4d | 329 | |
fd6040ed RK |
330 | /* |
331 | * The vblank arrays are dimensioned by MAX_CRTC - we can't | |
332 | * pass IDs greater than this to those functions. | |
333 | */ | |
e7d6231e RK |
334 | if (imxdrm->pipes >= MAX_CRTC) |
335 | return -EINVAL; | |
fd6040ed | 336 | |
e7d6231e RK |
337 | if (imxdrm->drm->open_count) |
338 | return -EBUSY; | |
e692da4d SH |
339 | |
340 | imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL); | |
e7d6231e RK |
341 | if (!imx_drm_crtc) |
342 | return -ENOMEM; | |
e692da4d SH |
343 | |
344 | imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; | |
e692da4d | 345 | imx_drm_crtc->crtc = crtc; |
e692da4d | 346 | |
6457b971 RK |
347 | crtc->port = port; |
348 | ||
d4b20e4d | 349 | imxdrm->crtc[imxdrm->pipes++] = imx_drm_crtc; |
e692da4d SH |
350 | |
351 | *new_crtc = imx_drm_crtc; | |
352 | ||
ec9557d7 RK |
353 | drm_crtc_helper_add(crtc, |
354 | imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); | |
355 | ||
43895599 | 356 | drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, |
f9882876 | 357 | imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs, NULL); |
ec9557d7 | 358 | |
e692da4d | 359 | return 0; |
e692da4d SH |
360 | } |
361 | EXPORT_SYMBOL_GPL(imx_drm_add_crtc); | |
362 | ||
363 | /* | |
364 | * imx_drm_remove_crtc - remove a crtc | |
365 | */ | |
366 | int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc) | |
367 | { | |
ccec7f62 | 368 | struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private; |
d4b20e4d | 369 | unsigned int pipe = drm_crtc_index(imx_drm_crtc->crtc); |
e692da4d SH |
370 | |
371 | drm_crtc_cleanup(imx_drm_crtc->crtc); | |
372 | ||
d4b20e4d | 373 | imxdrm->crtc[pipe] = NULL; |
e692da4d | 374 | |
e692da4d SH |
375 | kfree(imx_drm_crtc); |
376 | ||
377 | return 0; | |
378 | } | |
379 | EXPORT_SYMBOL_GPL(imx_drm_remove_crtc); | |
380 | ||
6457b971 RK |
381 | int imx_drm_encoder_parse_of(struct drm_device *drm, |
382 | struct drm_encoder *encoder, struct device_node *np) | |
9e2d410d | 383 | { |
6457b971 | 384 | uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np); |
9e2d410d | 385 | |
6457b971 RK |
386 | /* |
387 | * If we failed to find the CRTC(s) which this encoder is | |
388 | * supposed to be connected to, it's because the CRTC has | |
389 | * not been registered yet. Defer probing, and hope that | |
390 | * the required CRTC is added later. | |
391 | */ | |
392 | if (crtc_mask == 0) | |
393 | return -EPROBE_DEFER; | |
655b43cc | 394 | |
6457b971 | 395 | encoder->possible_crtcs = crtc_mask; |
63bc5164 | 396 | |
6457b971 RK |
397 | /* FIXME: this is the mask of outputs which can clone this output. */ |
398 | encoder->possible_clones = ~0; | |
9e2d410d RK |
399 | |
400 | return 0; | |
401 | } | |
6457b971 | 402 | EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); |
9e2d410d | 403 | |
baa70943 | 404 | static const struct drm_ioctl_desc imx_drm_ioctls[] = { |
e692da4d SH |
405 | /* none so far */ |
406 | }; | |
407 | ||
408 | static struct drm_driver imx_drm_driver = { | |
bd3665c9 | 409 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
e692da4d SH |
410 | .load = imx_drm_driver_load, |
411 | .unload = imx_drm_driver_unload, | |
e692da4d | 412 | .lastclose = imx_drm_driver_lastclose, |
915b4d11 | 413 | .set_busid = drm_platform_set_busid, |
e692da4d SH |
414 | .gem_free_object = drm_gem_cma_free_object, |
415 | .gem_vm_ops = &drm_gem_cma_vm_ops, | |
416 | .dumb_create = drm_gem_cma_dumb_create, | |
417 | .dumb_map_offset = drm_gem_cma_dumb_map_offset, | |
43387b37 | 418 | .dumb_destroy = drm_gem_dumb_destroy, |
e692da4d | 419 | |
bd3665c9 PZ |
420 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
421 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
422 | .gem_prime_import = drm_gem_prime_import, | |
423 | .gem_prime_export = drm_gem_prime_export, | |
424 | .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, | |
425 | .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, | |
426 | .gem_prime_vmap = drm_gem_cma_prime_vmap, | |
427 | .gem_prime_vunmap = drm_gem_cma_prime_vunmap, | |
428 | .gem_prime_mmap = drm_gem_cma_prime_mmap, | |
b44f8408 | 429 | .get_vblank_counter = drm_vblank_no_hw_counter, |
e692da4d SH |
430 | .enable_vblank = imx_drm_enable_vblank, |
431 | .disable_vblank = imx_drm_disable_vblank, | |
432 | .ioctls = imx_drm_ioctls, | |
433 | .num_ioctls = ARRAY_SIZE(imx_drm_ioctls), | |
434 | .fops = &imx_drm_driver_fops, | |
435 | .name = "imx-drm", | |
436 | .desc = "i.MX DRM graphics", | |
437 | .date = "20120507", | |
438 | .major = 1, | |
439 | .minor = 0, | |
440 | .patchlevel = 0, | |
441 | }; | |
442 | ||
17b5001b RK |
443 | static int compare_of(struct device *dev, void *data) |
444 | { | |
655b43cc | 445 | struct device_node *np = data; |
17b5001b | 446 | |
655b43cc PZ |
447 | /* Special case for LDB, one device for two channels */ |
448 | if (of_node_cmp(np->name, "lvds-channel") == 0) { | |
449 | np = of_get_parent(np); | |
450 | of_node_put(np); | |
17b5001b RK |
451 | } |
452 | ||
655b43cc PZ |
453 | return dev->of_node == np; |
454 | } | |
17b5001b | 455 | |
17b5001b RK |
456 | static int imx_drm_bind(struct device *dev) |
457 | { | |
458 | return drm_platform_init(&imx_drm_driver, to_platform_device(dev)); | |
459 | } | |
460 | ||
461 | static void imx_drm_unbind(struct device *dev) | |
462 | { | |
463 | drm_put_dev(dev_get_drvdata(dev)); | |
464 | } | |
465 | ||
466 | static const struct component_master_ops imx_drm_ops = { | |
17b5001b RK |
467 | .bind = imx_drm_bind, |
468 | .unbind = imx_drm_unbind, | |
469 | }; | |
470 | ||
e692da4d SH |
471 | static int imx_drm_platform_probe(struct platform_device *pdev) |
472 | { | |
9cace32f | 473 | int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops); |
655b43cc | 474 | |
9cace32f LD |
475 | if (!ret) |
476 | ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); | |
655b43cc | 477 | |
9cace32f | 478 | return ret; |
e692da4d SH |
479 | } |
480 | ||
481 | static int imx_drm_platform_remove(struct platform_device *pdev) | |
482 | { | |
17b5001b | 483 | component_master_del(&pdev->dev, &imx_drm_ops); |
e692da4d SH |
484 | return 0; |
485 | } | |
486 | ||
bfe945c8 SG |
487 | #ifdef CONFIG_PM_SLEEP |
488 | static int imx_drm_suspend(struct device *dev) | |
489 | { | |
490 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
491 | ||
492 | /* The drm_dev is NULL before .load hook is called */ | |
493 | if (drm_dev == NULL) | |
494 | return 0; | |
495 | ||
496 | drm_kms_helper_poll_disable(drm_dev); | |
497 | ||
498 | return 0; | |
499 | } | |
500 | ||
501 | static int imx_drm_resume(struct device *dev) | |
502 | { | |
503 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
504 | ||
505 | if (drm_dev == NULL) | |
506 | return 0; | |
507 | ||
508 | drm_helper_resume_force_mode(drm_dev); | |
509 | drm_kms_helper_poll_enable(drm_dev); | |
510 | ||
511 | return 0; | |
512 | } | |
513 | #endif | |
514 | ||
515 | static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume); | |
516 | ||
17b5001b | 517 | static const struct of_device_id imx_drm_dt_ids[] = { |
655b43cc | 518 | { .compatible = "fsl,imx-display-subsystem", }, |
17b5001b RK |
519 | { /* sentinel */ }, |
520 | }; | |
521 | MODULE_DEVICE_TABLE(of, imx_drm_dt_ids); | |
522 | ||
e692da4d SH |
523 | static struct platform_driver imx_drm_pdrv = { |
524 | .probe = imx_drm_platform_probe, | |
99c28f10 | 525 | .remove = imx_drm_platform_remove, |
e692da4d | 526 | .driver = { |
e692da4d | 527 | .name = "imx-drm", |
bfe945c8 | 528 | .pm = &imx_drm_pm_ops, |
17b5001b | 529 | .of_match_table = imx_drm_dt_ids, |
e692da4d SH |
530 | }, |
531 | }; | |
b85f2b5d | 532 | module_platform_driver(imx_drm_pdrv); |
e692da4d SH |
533 | |
534 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); | |
535 | MODULE_DESCRIPTION("i.MX drm driver core"); | |
536 | MODULE_LICENSE("GPL"); |