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 | ||
c1ff5a7a | 52 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
8acba02f RK |
53 | static int legacyfb_depth = 16; |
54 | module_param(legacyfb_depth, int, 0444); | |
c1ff5a7a | 55 | #endif |
8acba02f | 56 | |
b8d181e4 PZ |
57 | int imx_drm_crtc_id(struct imx_drm_crtc *crtc) |
58 | { | |
59 | return crtc->pipe; | |
60 | } | |
9c74360f | 61 | EXPORT_SYMBOL_GPL(imx_drm_crtc_id); |
b8d181e4 | 62 | |
e692da4d SH |
63 | static void imx_drm_driver_lastclose(struct drm_device *drm) |
64 | { | |
65 | struct imx_drm_device *imxdrm = drm->dev_private; | |
66 | ||
3f3a7280 | 67 | drm_fbdev_cma_restore_mode(imxdrm->fbhelper); |
e692da4d SH |
68 | } |
69 | ||
70 | static int imx_drm_driver_unload(struct drm_device *drm) | |
71 | { | |
72 | struct imx_drm_device *imxdrm = drm->dev_private; | |
3e68439b RK |
73 | |
74 | drm_kms_helper_poll_fini(drm); | |
e692da4d | 75 | |
8acba02f RK |
76 | if (imxdrm->fbhelper) |
77 | drm_fbdev_cma_fini(imxdrm->fbhelper); | |
8acba02f | 78 | |
17b5001b RK |
79 | component_unbind_all(drm->dev, drm); |
80 | ||
020a9ea7 | 81 | drm_vblank_cleanup(drm); |
020a9ea7 | 82 | drm_mode_config_cleanup(drm); |
e692da4d | 83 | |
bfe945c8 SG |
84 | platform_set_drvdata(drm->platformdev, NULL); |
85 | ||
e692da4d SH |
86 | return 0; |
87 | } | |
88 | ||
fdffa6f2 | 89 | static struct imx_drm_crtc *imx_drm_find_crtc(struct drm_crtc *crtc) |
e692da4d | 90 | { |
32266b45 | 91 | struct imx_drm_device *imxdrm = crtc->dev->dev_private; |
887eceac RK |
92 | unsigned i; |
93 | ||
94 | for (i = 0; i < MAX_CRTC; i++) | |
95 | if (imxdrm->crtc[i] && imxdrm->crtc[i]->crtc == crtc) | |
96 | return imxdrm->crtc[i]; | |
e692da4d | 97 | |
e692da4d SH |
98 | return NULL; |
99 | } | |
100 | ||
2872c807 PZ |
101 | int imx_drm_set_bus_format_pins(struct drm_encoder *encoder, u32 bus_format, |
102 | int hsync_pin, int vsync_pin) | |
e692da4d | 103 | { |
e692da4d | 104 | struct imx_drm_crtc_helper_funcs *helper; |
887eceac | 105 | struct imx_drm_crtc *imx_crtc; |
e692da4d | 106 | |
f2d66aad | 107 | imx_crtc = imx_drm_find_crtc(encoder->crtc); |
887eceac RK |
108 | if (!imx_crtc) |
109 | return -EINVAL; | |
e692da4d | 110 | |
e692da4d SH |
111 | helper = &imx_crtc->imx_drm_helper_funcs; |
112 | if (helper->set_interface_pix_fmt) | |
f2d66aad | 113 | return helper->set_interface_pix_fmt(encoder->crtc, |
2872c807 | 114 | bus_format, hsync_pin, vsync_pin); |
e692da4d SH |
115 | return 0; |
116 | } | |
2872c807 | 117 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format_pins); |
2ea42608 | 118 | |
2872c807 | 119 | int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format) |
2ea42608 | 120 | { |
2872c807 | 121 | return imx_drm_set_bus_format_pins(encoder, bus_format, 2, 3); |
2ea42608 | 122 | } |
2872c807 | 123 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format); |
e692da4d SH |
124 | |
125 | int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) | |
126 | { | |
b5ea1492 | 127 | return drm_vblank_get(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
128 | } |
129 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); | |
130 | ||
131 | void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) | |
132 | { | |
b5ea1492 | 133 | drm_vblank_put(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
134 | } |
135 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); | |
136 | ||
137 | void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) | |
138 | { | |
b5ea1492 | 139 | drm_handle_vblank(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
140 | } |
141 | EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); | |
142 | ||
88e72717 | 143 | static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
144 | { |
145 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 146 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d SH |
147 | int ret; |
148 | ||
e692da4d SH |
149 | if (!imx_drm_crtc) |
150 | return -EINVAL; | |
151 | ||
152 | if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank) | |
153 | return -ENOSYS; | |
154 | ||
155 | ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank( | |
156 | imx_drm_crtc->crtc); | |
157 | ||
158 | return ret; | |
159 | } | |
160 | ||
88e72717 | 161 | static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe) |
e692da4d SH |
162 | { |
163 | struct imx_drm_device *imxdrm = drm->dev_private; | |
88e72717 | 164 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
e692da4d | 165 | |
e692da4d SH |
166 | if (!imx_drm_crtc) |
167 | return; | |
168 | ||
169 | if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank) | |
170 | return; | |
171 | ||
172 | imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); | |
173 | } | |
174 | ||
6ee4d7fe SH |
175 | static void imx_drm_driver_preclose(struct drm_device *drm, |
176 | struct drm_file *file) | |
177 | { | |
178 | int i; | |
179 | ||
180 | if (!file->is_master) | |
181 | return; | |
182 | ||
942325c8 RK |
183 | for (i = 0; i < MAX_CRTC; i++) |
184 | imx_drm_disable_vblank(drm, i); | |
6ee4d7fe SH |
185 | } |
186 | ||
e692da4d SH |
187 | static const struct file_operations imx_drm_driver_fops = { |
188 | .owner = THIS_MODULE, | |
189 | .open = drm_open, | |
190 | .release = drm_release, | |
191 | .unlocked_ioctl = drm_ioctl, | |
192 | .mmap = drm_gem_cma_mmap, | |
193 | .poll = drm_poll, | |
e692da4d SH |
194 | .read = drm_read, |
195 | .llseek = noop_llseek, | |
196 | }; | |
197 | ||
8a51a33b RK |
198 | void imx_drm_connector_destroy(struct drm_connector *connector) |
199 | { | |
34ea3d38 | 200 | drm_connector_unregister(connector); |
8a51a33b RK |
201 | drm_connector_cleanup(connector); |
202 | } | |
203 | EXPORT_SYMBOL_GPL(imx_drm_connector_destroy); | |
204 | ||
205 | void imx_drm_encoder_destroy(struct drm_encoder *encoder) | |
206 | { | |
207 | drm_encoder_cleanup(encoder); | |
208 | } | |
209 | EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy); | |
210 | ||
3e68439b RK |
211 | static void imx_drm_output_poll_changed(struct drm_device *drm) |
212 | { | |
3e68439b RK |
213 | struct imx_drm_device *imxdrm = drm->dev_private; |
214 | ||
215 | drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); | |
3e68439b RK |
216 | } |
217 | ||
1df8b530 RK |
218 | static struct drm_mode_config_funcs imx_drm_mode_config_funcs = { |
219 | .fb_create = drm_fb_cma_create, | |
3e68439b | 220 | .output_poll_changed = imx_drm_output_poll_changed, |
1df8b530 RK |
221 | }; |
222 | ||
e692da4d | 223 | /* |
17b5001b RK |
224 | * Main DRM initialisation. This binds, initialises and registers |
225 | * with DRM the subcomponents of the driver. | |
e692da4d SH |
226 | */ |
227 | static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) | |
228 | { | |
b85f2b5d | 229 | struct imx_drm_device *imxdrm; |
e355e7dd | 230 | struct drm_connector *connector; |
e692da4d SH |
231 | int ret; |
232 | ||
b85f2b5d RK |
233 | imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL); |
234 | if (!imxdrm) | |
235 | return -ENOMEM; | |
236 | ||
e692da4d SH |
237 | imxdrm->drm = drm; |
238 | ||
239 | drm->dev_private = imxdrm; | |
240 | ||
241 | /* | |
242 | * enable drm irq mode. | |
4423843c | 243 | * - with irq_enabled = true, we can use the vblank feature. |
e692da4d SH |
244 | * |
245 | * P.S. note that we wouldn't use drm irq handler but | |
246 | * just specific driver own one instead because | |
247 | * drm framework supports only one irq handler and | |
248 | * drivers can well take care of their interrupts | |
249 | */ | |
4423843c | 250 | drm->irq_enabled = true; |
e692da4d | 251 | |
1df8b530 RK |
252 | /* |
253 | * set max width and height as default value(4096x4096). | |
254 | * this value would be used to check framebuffer size limitation | |
255 | * at drm_mode_addfb(). | |
256 | */ | |
257 | drm->mode_config.min_width = 64; | |
258 | drm->mode_config.min_height = 64; | |
259 | drm->mode_config.max_width = 4096; | |
260 | drm->mode_config.max_height = 4096; | |
261 | drm->mode_config.funcs = &imx_drm_mode_config_funcs; | |
262 | ||
e692da4d | 263 | drm_mode_config_init(drm); |
e692da4d | 264 | |
020a9ea7 | 265 | ret = drm_vblank_init(drm, MAX_CRTC); |
e692da4d | 266 | if (ret) |
8007875f | 267 | goto err_kms; |
e692da4d SH |
268 | |
269 | /* | |
e7d6231e RK |
270 | * with vblank_disable_allowed = true, vblank interrupt will be |
271 | * disabled by drm timer once a current process gives up ownership | |
272 | * of vblank event. (after drm_vblank_put function is called) | |
e692da4d | 273 | */ |
020a9ea7 | 274 | drm->vblank_disable_allowed = true; |
e692da4d | 275 | |
a72f8bee | 276 | platform_set_drvdata(drm->platformdev, drm); |
8d71de61 | 277 | |
17b5001b RK |
278 | /* Now try and bind all our sub-components */ |
279 | ret = component_bind_all(drm->dev, drm); | |
280 | if (ret) | |
ccec7f62 | 281 | goto err_vblank; |
e355e7dd RK |
282 | |
283 | /* | |
284 | * All components are now added, we can publish the connector sysfs | |
285 | * entries to userspace. This will generate hotplug events and so | |
286 | * userspace will expect to be able to access DRM at this point. | |
287 | */ | |
288 | list_for_each_entry(connector, &drm->mode_config.connector_list, head) { | |
34ea3d38 | 289 | ret = drm_connector_register(connector); |
e355e7dd RK |
290 | if (ret) { |
291 | dev_err(drm->dev, | |
34ea3d38 | 292 | "[CONNECTOR:%d:%s] drm_connector_register failed: %d\n", |
e355e7dd | 293 | connector->base.id, |
4a2a450f | 294 | connector->name, ret); |
e355e7dd RK |
295 | goto err_unbind; |
296 | } | |
297 | } | |
298 | ||
8acba02f RK |
299 | /* |
300 | * All components are now initialised, so setup the fb helper. | |
301 | * The fb helper takes copies of key hardware information, so the | |
302 | * crtcs/connectors/encoders must not change after this point. | |
303 | */ | |
c1ff5a7a | 304 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
8acba02f RK |
305 | if (legacyfb_depth != 16 && legacyfb_depth != 32) { |
306 | dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); | |
307 | legacyfb_depth = 16; | |
308 | } | |
309 | imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, | |
310 | drm->mode_config.num_crtc, MAX_CRTC); | |
311 | if (IS_ERR(imxdrm->fbhelper)) { | |
312 | ret = PTR_ERR(imxdrm->fbhelper); | |
313 | imxdrm->fbhelper = NULL; | |
314 | goto err_unbind; | |
315 | } | |
316 | #endif | |
3e68439b RK |
317 | |
318 | drm_kms_helper_poll_init(drm); | |
319 | ||
8007875f | 320 | return 0; |
a72f8bee | 321 | |
e355e7dd RK |
322 | err_unbind: |
323 | component_unbind_all(drm->dev, drm); | |
ccec7f62 | 324 | err_vblank: |
8007875f RK |
325 | drm_vblank_cleanup(drm); |
326 | err_kms: | |
8007875f | 327 | drm_mode_config_cleanup(drm); |
e692da4d SH |
328 | |
329 | return ret; | |
330 | } | |
331 | ||
e692da4d SH |
332 | /* |
333 | * imx_drm_add_crtc - add a new crtc | |
e692da4d | 334 | */ |
32266b45 | 335 | int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, |
43895599 | 336 | struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane, |
e692da4d | 337 | const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs, |
655b43cc | 338 | struct device_node *port) |
e692da4d | 339 | { |
32266b45 | 340 | struct imx_drm_device *imxdrm = drm->dev_private; |
e692da4d | 341 | struct imx_drm_crtc *imx_drm_crtc; |
e692da4d SH |
342 | int ret; |
343 | ||
fd6040ed RK |
344 | /* |
345 | * The vblank arrays are dimensioned by MAX_CRTC - we can't | |
346 | * pass IDs greater than this to those functions. | |
347 | */ | |
e7d6231e RK |
348 | if (imxdrm->pipes >= MAX_CRTC) |
349 | return -EINVAL; | |
fd6040ed | 350 | |
e7d6231e RK |
351 | if (imxdrm->drm->open_count) |
352 | return -EBUSY; | |
e692da4d SH |
353 | |
354 | imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL); | |
e7d6231e RK |
355 | if (!imx_drm_crtc) |
356 | return -ENOMEM; | |
e692da4d SH |
357 | |
358 | imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; | |
359 | imx_drm_crtc->pipe = imxdrm->pipes++; | |
e692da4d | 360 | imx_drm_crtc->crtc = crtc; |
e692da4d | 361 | |
6457b971 RK |
362 | crtc->port = port; |
363 | ||
887eceac | 364 | imxdrm->crtc[imx_drm_crtc->pipe] = imx_drm_crtc; |
e692da4d SH |
365 | |
366 | *new_crtc = imx_drm_crtc; | |
367 | ||
ec9557d7 | 368 | ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256); |
e692da4d SH |
369 | if (ret) |
370 | goto err_register; | |
371 | ||
ec9557d7 RK |
372 | drm_crtc_helper_add(crtc, |
373 | imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); | |
374 | ||
43895599 | 375 | drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, |
f9882876 | 376 | imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs, NULL); |
ec9557d7 | 377 | |
e692da4d SH |
378 | return 0; |
379 | ||
380 | err_register: | |
887eceac | 381 | imxdrm->crtc[imx_drm_crtc->pipe] = NULL; |
e692da4d | 382 | kfree(imx_drm_crtc); |
e692da4d SH |
383 | return ret; |
384 | } | |
385 | EXPORT_SYMBOL_GPL(imx_drm_add_crtc); | |
386 | ||
387 | /* | |
388 | * imx_drm_remove_crtc - remove a crtc | |
389 | */ | |
390 | int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc) | |
391 | { | |
ccec7f62 | 392 | struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private; |
e692da4d SH |
393 | |
394 | drm_crtc_cleanup(imx_drm_crtc->crtc); | |
395 | ||
887eceac | 396 | imxdrm->crtc[imx_drm_crtc->pipe] = NULL; |
e692da4d | 397 | |
e692da4d SH |
398 | kfree(imx_drm_crtc); |
399 | ||
400 | return 0; | |
401 | } | |
402 | EXPORT_SYMBOL_GPL(imx_drm_remove_crtc); | |
403 | ||
6457b971 RK |
404 | int imx_drm_encoder_parse_of(struct drm_device *drm, |
405 | struct drm_encoder *encoder, struct device_node *np) | |
9e2d410d | 406 | { |
6457b971 | 407 | uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np); |
9e2d410d | 408 | |
6457b971 RK |
409 | /* |
410 | * If we failed to find the CRTC(s) which this encoder is | |
411 | * supposed to be connected to, it's because the CRTC has | |
412 | * not been registered yet. Defer probing, and hope that | |
413 | * the required CRTC is added later. | |
414 | */ | |
415 | if (crtc_mask == 0) | |
416 | return -EPROBE_DEFER; | |
655b43cc | 417 | |
6457b971 | 418 | encoder->possible_crtcs = crtc_mask; |
63bc5164 | 419 | |
6457b971 RK |
420 | /* FIXME: this is the mask of outputs which can clone this output. */ |
421 | encoder->possible_clones = ~0; | |
9e2d410d RK |
422 | |
423 | return 0; | |
424 | } | |
6457b971 | 425 | EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); |
9e2d410d | 426 | |
655b43cc PZ |
427 | /* |
428 | * @node: device tree node containing encoder input ports | |
429 | * @encoder: drm_encoder | |
430 | */ | |
431 | int imx_drm_encoder_get_mux_id(struct device_node *node, | |
432 | struct drm_encoder *encoder) | |
e692da4d | 433 | { |
887eceac | 434 | struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc); |
539bb6a2 | 435 | struct device_node *ep; |
b6babdd9 | 436 | struct of_endpoint endpoint; |
655b43cc | 437 | struct device_node *port; |
b6babdd9 | 438 | int ret; |
e692da4d | 439 | |
655b43cc PZ |
440 | if (!node || !imx_crtc) |
441 | return -EINVAL; | |
442 | ||
539bb6a2 | 443 | for_each_endpoint_of_node(node, ep) { |
655b43cc PZ |
444 | port = of_graph_get_remote_port(ep); |
445 | of_node_put(port); | |
6457b971 | 446 | if (port == imx_crtc->crtc->port) { |
b6babdd9 | 447 | ret = of_graph_parse_endpoint(ep, &endpoint); |
539bb6a2 | 448 | of_node_put(ep); |
c509bdc2 | 449 | return ret ? ret : endpoint.port; |
655b43cc | 450 | } |
539bb6a2 | 451 | } |
e692da4d | 452 | |
655b43cc | 453 | return -EINVAL; |
e692da4d | 454 | } |
ea8d1583 | 455 | EXPORT_SYMBOL_GPL(imx_drm_encoder_get_mux_id); |
e692da4d | 456 | |
baa70943 | 457 | static const struct drm_ioctl_desc imx_drm_ioctls[] = { |
e692da4d SH |
458 | /* none so far */ |
459 | }; | |
460 | ||
461 | static struct drm_driver imx_drm_driver = { | |
bd3665c9 | 462 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
e692da4d SH |
463 | .load = imx_drm_driver_load, |
464 | .unload = imx_drm_driver_unload, | |
e692da4d | 465 | .lastclose = imx_drm_driver_lastclose, |
6ee4d7fe | 466 | .preclose = imx_drm_driver_preclose, |
915b4d11 | 467 | .set_busid = drm_platform_set_busid, |
e692da4d SH |
468 | .gem_free_object = drm_gem_cma_free_object, |
469 | .gem_vm_ops = &drm_gem_cma_vm_ops, | |
470 | .dumb_create = drm_gem_cma_dumb_create, | |
471 | .dumb_map_offset = drm_gem_cma_dumb_map_offset, | |
43387b37 | 472 | .dumb_destroy = drm_gem_dumb_destroy, |
e692da4d | 473 | |
bd3665c9 PZ |
474 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
475 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
476 | .gem_prime_import = drm_gem_prime_import, | |
477 | .gem_prime_export = drm_gem_prime_export, | |
478 | .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, | |
479 | .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, | |
480 | .gem_prime_vmap = drm_gem_cma_prime_vmap, | |
481 | .gem_prime_vunmap = drm_gem_cma_prime_vunmap, | |
482 | .gem_prime_mmap = drm_gem_cma_prime_mmap, | |
b44f8408 | 483 | .get_vblank_counter = drm_vblank_no_hw_counter, |
e692da4d SH |
484 | .enable_vblank = imx_drm_enable_vblank, |
485 | .disable_vblank = imx_drm_disable_vblank, | |
486 | .ioctls = imx_drm_ioctls, | |
487 | .num_ioctls = ARRAY_SIZE(imx_drm_ioctls), | |
488 | .fops = &imx_drm_driver_fops, | |
489 | .name = "imx-drm", | |
490 | .desc = "i.MX DRM graphics", | |
491 | .date = "20120507", | |
492 | .major = 1, | |
493 | .minor = 0, | |
494 | .patchlevel = 0, | |
495 | }; | |
496 | ||
17b5001b RK |
497 | static int compare_of(struct device *dev, void *data) |
498 | { | |
655b43cc | 499 | struct device_node *np = data; |
17b5001b | 500 | |
655b43cc PZ |
501 | /* Special case for LDB, one device for two channels */ |
502 | if (of_node_cmp(np->name, "lvds-channel") == 0) { | |
503 | np = of_get_parent(np); | |
504 | of_node_put(np); | |
17b5001b RK |
505 | } |
506 | ||
655b43cc PZ |
507 | return dev->of_node == np; |
508 | } | |
17b5001b | 509 | |
17b5001b RK |
510 | static int imx_drm_bind(struct device *dev) |
511 | { | |
512 | return drm_platform_init(&imx_drm_driver, to_platform_device(dev)); | |
513 | } | |
514 | ||
515 | static void imx_drm_unbind(struct device *dev) | |
516 | { | |
517 | drm_put_dev(dev_get_drvdata(dev)); | |
518 | } | |
519 | ||
520 | static const struct component_master_ops imx_drm_ops = { | |
17b5001b RK |
521 | .bind = imx_drm_bind, |
522 | .unbind = imx_drm_unbind, | |
523 | }; | |
524 | ||
e692da4d SH |
525 | static int imx_drm_platform_probe(struct platform_device *pdev) |
526 | { | |
9cace32f | 527 | int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops); |
655b43cc | 528 | |
9cace32f LD |
529 | if (!ret) |
530 | ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); | |
655b43cc | 531 | |
9cace32f | 532 | return ret; |
e692da4d SH |
533 | } |
534 | ||
535 | static int imx_drm_platform_remove(struct platform_device *pdev) | |
536 | { | |
17b5001b | 537 | component_master_del(&pdev->dev, &imx_drm_ops); |
e692da4d SH |
538 | return 0; |
539 | } | |
540 | ||
bfe945c8 SG |
541 | #ifdef CONFIG_PM_SLEEP |
542 | static int imx_drm_suspend(struct device *dev) | |
543 | { | |
544 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
545 | ||
546 | /* The drm_dev is NULL before .load hook is called */ | |
547 | if (drm_dev == NULL) | |
548 | return 0; | |
549 | ||
550 | drm_kms_helper_poll_disable(drm_dev); | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
555 | static int imx_drm_resume(struct device *dev) | |
556 | { | |
557 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
558 | ||
559 | if (drm_dev == NULL) | |
560 | return 0; | |
561 | ||
562 | drm_helper_resume_force_mode(drm_dev); | |
563 | drm_kms_helper_poll_enable(drm_dev); | |
564 | ||
565 | return 0; | |
566 | } | |
567 | #endif | |
568 | ||
569 | static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume); | |
570 | ||
17b5001b | 571 | static const struct of_device_id imx_drm_dt_ids[] = { |
655b43cc | 572 | { .compatible = "fsl,imx-display-subsystem", }, |
17b5001b RK |
573 | { /* sentinel */ }, |
574 | }; | |
575 | MODULE_DEVICE_TABLE(of, imx_drm_dt_ids); | |
576 | ||
e692da4d SH |
577 | static struct platform_driver imx_drm_pdrv = { |
578 | .probe = imx_drm_platform_probe, | |
99c28f10 | 579 | .remove = imx_drm_platform_remove, |
e692da4d | 580 | .driver = { |
e692da4d | 581 | .name = "imx-drm", |
bfe945c8 | 582 | .pm = &imx_drm_pm_ops, |
17b5001b | 583 | .of_match_table = imx_drm_dt_ids, |
e692da4d SH |
584 | }, |
585 | }; | |
b85f2b5d | 586 | module_platform_driver(imx_drm_pdrv); |
e692da4d SH |
587 | |
588 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); | |
589 | MODULE_DESCRIPTION("i.MX drm driver core"); | |
590 | MODULE_LICENSE("GPL"); |