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> |
310944d1 | 28 | #include <video/imx-ipu-v3.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]; |
d2ab8ad9 | 42 | unsigned int pipes; |
e692da4d SH |
43 | struct drm_fbdev_cma *fbhelper; |
44 | }; | |
45 | ||
46 | struct imx_drm_crtc { | |
47 | struct drm_crtc *crtc; | |
e692da4d | 48 | struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs; |
e692da4d SH |
49 | }; |
50 | ||
c1ff5a7a | 51 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
8acba02f RK |
52 | static int legacyfb_depth = 16; |
53 | module_param(legacyfb_depth, int, 0444); | |
c1ff5a7a | 54 | #endif |
8acba02f | 55 | |
d2ab8ad9 | 56 | unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc) |
b8d181e4 | 57 | { |
d4b20e4d | 58 | return drm_crtc_index(crtc->crtc); |
b8d181e4 | 59 | } |
9c74360f | 60 | EXPORT_SYMBOL_GPL(imx_drm_crtc_id); |
b8d181e4 | 61 | |
e692da4d SH |
62 | static void imx_drm_driver_lastclose(struct drm_device *drm) |
63 | { | |
64 | struct imx_drm_device *imxdrm = drm->dev_private; | |
65 | ||
3f3a7280 | 66 | drm_fbdev_cma_restore_mode(imxdrm->fbhelper); |
e692da4d SH |
67 | } |
68 | ||
69 | static int imx_drm_driver_unload(struct drm_device *drm) | |
70 | { | |
71 | struct imx_drm_device *imxdrm = drm->dev_private; | |
3e68439b RK |
72 | |
73 | drm_kms_helper_poll_fini(drm); | |
e692da4d | 74 | |
8acba02f RK |
75 | if (imxdrm->fbhelper) |
76 | drm_fbdev_cma_fini(imxdrm->fbhelper); | |
8acba02f | 77 | |
17b5001b RK |
78 | component_unbind_all(drm->dev, drm); |
79 | ||
020a9ea7 | 80 | drm_vblank_cleanup(drm); |
020a9ea7 | 81 | drm_mode_config_cleanup(drm); |
e692da4d | 82 | |
bfe945c8 SG |
83 | platform_set_drvdata(drm->platformdev, NULL); |
84 | ||
e692da4d SH |
85 | return 0; |
86 | } | |
87 | ||
fdffa6f2 | 88 | static struct imx_drm_crtc *imx_drm_find_crtc(struct drm_crtc *crtc) |
e692da4d | 89 | { |
32266b45 | 90 | struct imx_drm_device *imxdrm = crtc->dev->dev_private; |
887eceac RK |
91 | unsigned i; |
92 | ||
93 | for (i = 0; i < MAX_CRTC; i++) | |
94 | if (imxdrm->crtc[i] && imxdrm->crtc[i]->crtc == crtc) | |
95 | return imxdrm->crtc[i]; | |
e692da4d | 96 | |
e692da4d SH |
97 | return NULL; |
98 | } | |
99 | ||
4ed094fd PZ |
100 | int imx_drm_set_bus_config(struct drm_encoder *encoder, u32 bus_format, |
101 | int hsync_pin, int vsync_pin, u32 bus_flags) | |
e692da4d | 102 | { |
e692da4d | 103 | struct imx_drm_crtc_helper_funcs *helper; |
887eceac | 104 | struct imx_drm_crtc *imx_crtc; |
e692da4d | 105 | |
f2d66aad | 106 | imx_crtc = imx_drm_find_crtc(encoder->crtc); |
887eceac RK |
107 | if (!imx_crtc) |
108 | return -EINVAL; | |
e692da4d | 109 | |
e692da4d SH |
110 | helper = &imx_crtc->imx_drm_helper_funcs; |
111 | if (helper->set_interface_pix_fmt) | |
f2d66aad | 112 | return helper->set_interface_pix_fmt(encoder->crtc, |
4ed094fd PZ |
113 | bus_format, hsync_pin, vsync_pin, |
114 | bus_flags); | |
e692da4d SH |
115 | return 0; |
116 | } | |
4ed094fd | 117 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_config); |
2ea42608 | 118 | |
2872c807 | 119 | int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format) |
2ea42608 | 120 | { |
4ed094fd PZ |
121 | return imx_drm_set_bus_config(encoder, bus_format, 2, 3, |
122 | DRM_BUS_FLAG_DE_HIGH | | |
123 | DRM_BUS_FLAG_PIXDATA_NEGEDGE); | |
2ea42608 | 124 | } |
2872c807 | 125 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format); |
e692da4d SH |
126 | |
127 | int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) | |
128 | { | |
d4b20e4d | 129 | return drm_crtc_vblank_get(imx_drm_crtc->crtc); |
e692da4d SH |
130 | } |
131 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); | |
132 | ||
133 | void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) | |
134 | { | |
d4b20e4d | 135 | drm_crtc_vblank_put(imx_drm_crtc->crtc); |
e692da4d SH |
136 | } |
137 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); | |
138 | ||
139 | void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) | |
140 | { | |
d4b20e4d | 141 | drm_crtc_handle_vblank(imx_drm_crtc->crtc); |
e692da4d SH |
142 | } |
143 | EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); | |
144 | ||
88e72717 | 145 | static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
146 | { |
147 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 148 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d SH |
149 | int ret; |
150 | ||
e692da4d SH |
151 | if (!imx_drm_crtc) |
152 | return -EINVAL; | |
153 | ||
154 | if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank) | |
155 | return -ENOSYS; | |
156 | ||
157 | ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank( | |
158 | imx_drm_crtc->crtc); | |
159 | ||
160 | return ret; | |
161 | } | |
162 | ||
88e72717 | 163 | static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
164 | { |
165 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 166 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d | 167 | |
e692da4d SH |
168 | if (!imx_drm_crtc) |
169 | return; | |
170 | ||
171 | if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank) | |
172 | return; | |
173 | ||
174 | imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); | |
175 | } | |
176 | ||
177 | static const struct file_operations imx_drm_driver_fops = { | |
178 | .owner = THIS_MODULE, | |
179 | .open = drm_open, | |
180 | .release = drm_release, | |
181 | .unlocked_ioctl = drm_ioctl, | |
182 | .mmap = drm_gem_cma_mmap, | |
183 | .poll = drm_poll, | |
e692da4d SH |
184 | .read = drm_read, |
185 | .llseek = noop_llseek, | |
186 | }; | |
187 | ||
8a51a33b RK |
188 | void imx_drm_connector_destroy(struct drm_connector *connector) |
189 | { | |
34ea3d38 | 190 | drm_connector_unregister(connector); |
8a51a33b RK |
191 | drm_connector_cleanup(connector); |
192 | } | |
193 | EXPORT_SYMBOL_GPL(imx_drm_connector_destroy); | |
194 | ||
195 | void imx_drm_encoder_destroy(struct drm_encoder *encoder) | |
196 | { | |
197 | drm_encoder_cleanup(encoder); | |
198 | } | |
199 | EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy); | |
200 | ||
3e68439b RK |
201 | static void imx_drm_output_poll_changed(struct drm_device *drm) |
202 | { | |
3e68439b RK |
203 | struct imx_drm_device *imxdrm = drm->dev_private; |
204 | ||
205 | drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); | |
3e68439b RK |
206 | } |
207 | ||
7ae847dd | 208 | static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = { |
1df8b530 | 209 | .fb_create = drm_fb_cma_create, |
3e68439b | 210 | .output_poll_changed = imx_drm_output_poll_changed, |
1df8b530 RK |
211 | }; |
212 | ||
e692da4d | 213 | /* |
17b5001b RK |
214 | * Main DRM initialisation. This binds, initialises and registers |
215 | * with DRM the subcomponents of the driver. | |
e692da4d SH |
216 | */ |
217 | static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) | |
218 | { | |
b85f2b5d | 219 | struct imx_drm_device *imxdrm; |
e355e7dd | 220 | struct drm_connector *connector; |
e692da4d SH |
221 | int ret; |
222 | ||
b85f2b5d RK |
223 | imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL); |
224 | if (!imxdrm) | |
225 | return -ENOMEM; | |
226 | ||
e692da4d SH |
227 | imxdrm->drm = drm; |
228 | ||
229 | drm->dev_private = imxdrm; | |
230 | ||
231 | /* | |
232 | * enable drm irq mode. | |
4423843c | 233 | * - with irq_enabled = true, we can use the vblank feature. |
e692da4d SH |
234 | * |
235 | * P.S. note that we wouldn't use drm irq handler but | |
236 | * just specific driver own one instead because | |
237 | * drm framework supports only one irq handler and | |
238 | * drivers can well take care of their interrupts | |
239 | */ | |
4423843c | 240 | drm->irq_enabled = true; |
e692da4d | 241 | |
1df8b530 RK |
242 | /* |
243 | * set max width and height as default value(4096x4096). | |
244 | * this value would be used to check framebuffer size limitation | |
245 | * at drm_mode_addfb(). | |
246 | */ | |
247 | drm->mode_config.min_width = 64; | |
248 | drm->mode_config.min_height = 64; | |
249 | drm->mode_config.max_width = 4096; | |
250 | drm->mode_config.max_height = 4096; | |
251 | drm->mode_config.funcs = &imx_drm_mode_config_funcs; | |
252 | ||
e692da4d | 253 | drm_mode_config_init(drm); |
e692da4d | 254 | |
020a9ea7 | 255 | ret = drm_vblank_init(drm, MAX_CRTC); |
e692da4d | 256 | if (ret) |
8007875f | 257 | goto err_kms; |
e692da4d | 258 | |
a72f8bee | 259 | platform_set_drvdata(drm->platformdev, drm); |
8d71de61 | 260 | |
17b5001b RK |
261 | /* Now try and bind all our sub-components */ |
262 | ret = component_bind_all(drm->dev, drm); | |
263 | if (ret) | |
ccec7f62 | 264 | goto err_vblank; |
e355e7dd RK |
265 | |
266 | /* | |
267 | * All components are now added, we can publish the connector sysfs | |
268 | * entries to userspace. This will generate hotplug events and so | |
269 | * userspace will expect to be able to access DRM at this point. | |
270 | */ | |
271 | list_for_each_entry(connector, &drm->mode_config.connector_list, head) { | |
34ea3d38 | 272 | ret = drm_connector_register(connector); |
e355e7dd RK |
273 | if (ret) { |
274 | dev_err(drm->dev, | |
34ea3d38 | 275 | "[CONNECTOR:%d:%s] drm_connector_register failed: %d\n", |
e355e7dd | 276 | connector->base.id, |
4a2a450f | 277 | connector->name, ret); |
e355e7dd RK |
278 | goto err_unbind; |
279 | } | |
280 | } | |
281 | ||
8acba02f RK |
282 | /* |
283 | * All components are now initialised, so setup the fb helper. | |
284 | * The fb helper takes copies of key hardware information, so the | |
285 | * crtcs/connectors/encoders must not change after this point. | |
286 | */ | |
c1ff5a7a | 287 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
8acba02f RK |
288 | if (legacyfb_depth != 16 && legacyfb_depth != 32) { |
289 | dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); | |
290 | legacyfb_depth = 16; | |
291 | } | |
4314e19e | 292 | drm_helper_disable_unused_functions(drm); |
8acba02f RK |
293 | imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, |
294 | drm->mode_config.num_crtc, MAX_CRTC); | |
295 | if (IS_ERR(imxdrm->fbhelper)) { | |
296 | ret = PTR_ERR(imxdrm->fbhelper); | |
297 | imxdrm->fbhelper = NULL; | |
298 | goto err_unbind; | |
299 | } | |
300 | #endif | |
3e68439b RK |
301 | |
302 | drm_kms_helper_poll_init(drm); | |
303 | ||
8007875f | 304 | return 0; |
a72f8bee | 305 | |
e355e7dd RK |
306 | err_unbind: |
307 | component_unbind_all(drm->dev, drm); | |
ccec7f62 | 308 | err_vblank: |
8007875f RK |
309 | drm_vblank_cleanup(drm); |
310 | err_kms: | |
8007875f | 311 | drm_mode_config_cleanup(drm); |
e692da4d SH |
312 | |
313 | return ret; | |
314 | } | |
315 | ||
e692da4d SH |
316 | /* |
317 | * imx_drm_add_crtc - add a new crtc | |
e692da4d | 318 | */ |
32266b45 | 319 | int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, |
43895599 | 320 | struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane, |
e692da4d | 321 | const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs, |
655b43cc | 322 | struct device_node *port) |
e692da4d | 323 | { |
32266b45 | 324 | struct imx_drm_device *imxdrm = drm->dev_private; |
e692da4d | 325 | struct imx_drm_crtc *imx_drm_crtc; |
e692da4d | 326 | |
fd6040ed RK |
327 | /* |
328 | * The vblank arrays are dimensioned by MAX_CRTC - we can't | |
329 | * pass IDs greater than this to those functions. | |
330 | */ | |
e7d6231e RK |
331 | if (imxdrm->pipes >= MAX_CRTC) |
332 | return -EINVAL; | |
fd6040ed | 333 | |
e7d6231e RK |
334 | if (imxdrm->drm->open_count) |
335 | return -EBUSY; | |
e692da4d SH |
336 | |
337 | imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL); | |
e7d6231e RK |
338 | if (!imx_drm_crtc) |
339 | return -ENOMEM; | |
e692da4d SH |
340 | |
341 | imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; | |
e692da4d | 342 | imx_drm_crtc->crtc = crtc; |
e692da4d | 343 | |
6457b971 RK |
344 | crtc->port = port; |
345 | ||
d4b20e4d | 346 | imxdrm->crtc[imxdrm->pipes++] = imx_drm_crtc; |
e692da4d SH |
347 | |
348 | *new_crtc = imx_drm_crtc; | |
349 | ||
ec9557d7 RK |
350 | drm_crtc_helper_add(crtc, |
351 | imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); | |
352 | ||
43895599 | 353 | drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, |
f9882876 | 354 | imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs, NULL); |
ec9557d7 | 355 | |
e692da4d | 356 | return 0; |
e692da4d SH |
357 | } |
358 | EXPORT_SYMBOL_GPL(imx_drm_add_crtc); | |
359 | ||
360 | /* | |
361 | * imx_drm_remove_crtc - remove a crtc | |
362 | */ | |
363 | int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc) | |
364 | { | |
ccec7f62 | 365 | struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private; |
d4b20e4d | 366 | unsigned int pipe = drm_crtc_index(imx_drm_crtc->crtc); |
e692da4d SH |
367 | |
368 | drm_crtc_cleanup(imx_drm_crtc->crtc); | |
369 | ||
d4b20e4d | 370 | imxdrm->crtc[pipe] = NULL; |
e692da4d | 371 | |
e692da4d SH |
372 | kfree(imx_drm_crtc); |
373 | ||
374 | return 0; | |
375 | } | |
376 | EXPORT_SYMBOL_GPL(imx_drm_remove_crtc); | |
377 | ||
6457b971 RK |
378 | int imx_drm_encoder_parse_of(struct drm_device *drm, |
379 | struct drm_encoder *encoder, struct device_node *np) | |
9e2d410d | 380 | { |
6457b971 | 381 | uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np); |
9e2d410d | 382 | |
6457b971 RK |
383 | /* |
384 | * If we failed to find the CRTC(s) which this encoder is | |
385 | * supposed to be connected to, it's because the CRTC has | |
386 | * not been registered yet. Defer probing, and hope that | |
387 | * the required CRTC is added later. | |
388 | */ | |
389 | if (crtc_mask == 0) | |
390 | return -EPROBE_DEFER; | |
655b43cc | 391 | |
6457b971 | 392 | encoder->possible_crtcs = crtc_mask; |
63bc5164 | 393 | |
6457b971 RK |
394 | /* FIXME: this is the mask of outputs which can clone this output. */ |
395 | encoder->possible_clones = ~0; | |
9e2d410d RK |
396 | |
397 | return 0; | |
398 | } | |
6457b971 | 399 | EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); |
9e2d410d | 400 | |
baa70943 | 401 | static const struct drm_ioctl_desc imx_drm_ioctls[] = { |
e692da4d SH |
402 | /* none so far */ |
403 | }; | |
404 | ||
405 | static struct drm_driver imx_drm_driver = { | |
bd3665c9 | 406 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
e692da4d SH |
407 | .load = imx_drm_driver_load, |
408 | .unload = imx_drm_driver_unload, | |
e692da4d | 409 | .lastclose = imx_drm_driver_lastclose, |
915b4d11 | 410 | .set_busid = drm_platform_set_busid, |
4b193663 | 411 | .gem_free_object_unlocked = drm_gem_cma_free_object, |
e692da4d SH |
412 | .gem_vm_ops = &drm_gem_cma_vm_ops, |
413 | .dumb_create = drm_gem_cma_dumb_create, | |
414 | .dumb_map_offset = drm_gem_cma_dumb_map_offset, | |
43387b37 | 415 | .dumb_destroy = drm_gem_dumb_destroy, |
e692da4d | 416 | |
bd3665c9 PZ |
417 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
418 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
419 | .gem_prime_import = drm_gem_prime_import, | |
420 | .gem_prime_export = drm_gem_prime_export, | |
421 | .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, | |
422 | .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, | |
423 | .gem_prime_vmap = drm_gem_cma_prime_vmap, | |
424 | .gem_prime_vunmap = drm_gem_cma_prime_vunmap, | |
425 | .gem_prime_mmap = drm_gem_cma_prime_mmap, | |
b44f8408 | 426 | .get_vblank_counter = drm_vblank_no_hw_counter, |
e692da4d SH |
427 | .enable_vblank = imx_drm_enable_vblank, |
428 | .disable_vblank = imx_drm_disable_vblank, | |
429 | .ioctls = imx_drm_ioctls, | |
430 | .num_ioctls = ARRAY_SIZE(imx_drm_ioctls), | |
431 | .fops = &imx_drm_driver_fops, | |
432 | .name = "imx-drm", | |
433 | .desc = "i.MX DRM graphics", | |
434 | .date = "20120507", | |
435 | .major = 1, | |
436 | .minor = 0, | |
437 | .patchlevel = 0, | |
438 | }; | |
439 | ||
17b5001b RK |
440 | static int compare_of(struct device *dev, void *data) |
441 | { | |
655b43cc | 442 | struct device_node *np = data; |
17b5001b | 443 | |
310944d1 PZ |
444 | /* Special case for DI, dev->of_node may not be set yet */ |
445 | if (strcmp(dev->driver->name, "imx-ipuv3-crtc") == 0) { | |
446 | struct ipu_client_platformdata *pdata = dev->platform_data; | |
447 | ||
448 | return pdata->of_node == np; | |
449 | } | |
450 | ||
655b43cc PZ |
451 | /* Special case for LDB, one device for two channels */ |
452 | if (of_node_cmp(np->name, "lvds-channel") == 0) { | |
453 | np = of_get_parent(np); | |
454 | of_node_put(np); | |
17b5001b RK |
455 | } |
456 | ||
655b43cc PZ |
457 | return dev->of_node == np; |
458 | } | |
17b5001b | 459 | |
17b5001b RK |
460 | static int imx_drm_bind(struct device *dev) |
461 | { | |
462 | return drm_platform_init(&imx_drm_driver, to_platform_device(dev)); | |
463 | } | |
464 | ||
465 | static void imx_drm_unbind(struct device *dev) | |
466 | { | |
467 | drm_put_dev(dev_get_drvdata(dev)); | |
468 | } | |
469 | ||
470 | static const struct component_master_ops imx_drm_ops = { | |
17b5001b RK |
471 | .bind = imx_drm_bind, |
472 | .unbind = imx_drm_unbind, | |
473 | }; | |
474 | ||
e692da4d SH |
475 | static int imx_drm_platform_probe(struct platform_device *pdev) |
476 | { | |
9cace32f | 477 | int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops); |
655b43cc | 478 | |
9cace32f LD |
479 | if (!ret) |
480 | ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); | |
655b43cc | 481 | |
9cace32f | 482 | return ret; |
e692da4d SH |
483 | } |
484 | ||
485 | static int imx_drm_platform_remove(struct platform_device *pdev) | |
486 | { | |
17b5001b | 487 | component_master_del(&pdev->dev, &imx_drm_ops); |
e692da4d SH |
488 | return 0; |
489 | } | |
490 | ||
bfe945c8 SG |
491 | #ifdef CONFIG_PM_SLEEP |
492 | static int imx_drm_suspend(struct device *dev) | |
493 | { | |
494 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
495 | ||
496 | /* The drm_dev is NULL before .load hook is called */ | |
497 | if (drm_dev == NULL) | |
498 | return 0; | |
499 | ||
500 | drm_kms_helper_poll_disable(drm_dev); | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
505 | static int imx_drm_resume(struct device *dev) | |
506 | { | |
507 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
508 | ||
509 | if (drm_dev == NULL) | |
510 | return 0; | |
511 | ||
512 | drm_helper_resume_force_mode(drm_dev); | |
513 | drm_kms_helper_poll_enable(drm_dev); | |
514 | ||
515 | return 0; | |
516 | } | |
517 | #endif | |
518 | ||
519 | static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume); | |
520 | ||
17b5001b | 521 | static const struct of_device_id imx_drm_dt_ids[] = { |
655b43cc | 522 | { .compatible = "fsl,imx-display-subsystem", }, |
17b5001b RK |
523 | { /* sentinel */ }, |
524 | }; | |
525 | MODULE_DEVICE_TABLE(of, imx_drm_dt_ids); | |
526 | ||
e692da4d SH |
527 | static struct platform_driver imx_drm_pdrv = { |
528 | .probe = imx_drm_platform_probe, | |
99c28f10 | 529 | .remove = imx_drm_platform_remove, |
e692da4d | 530 | .driver = { |
e692da4d | 531 | .name = "imx-drm", |
bfe945c8 | 532 | .pm = &imx_drm_pm_ops, |
17b5001b | 533 | .of_match_table = imx_drm_dt_ids, |
e692da4d SH |
534 | }, |
535 | }; | |
b85f2b5d | 536 | module_platform_driver(imx_drm_pdrv); |
e692da4d SH |
537 | |
538 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); | |
539 | MODULE_DESCRIPTION("i.MX drm driver core"); | |
540 | MODULE_LICENSE("GPL"); |