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> | |
26 | ||
27 | #include "imx-drm.h" | |
28 | ||
29 | #define MAX_CRTC 4 | |
30 | ||
887eceac RK |
31 | struct imx_drm_crtc; |
32 | ||
e692da4d SH |
33 | struct imx_drm_device { |
34 | struct drm_device *drm; | |
887eceac | 35 | struct imx_drm_crtc *crtc[MAX_CRTC]; |
e692da4d SH |
36 | int pipes; |
37 | struct drm_fbdev_cma *fbhelper; | |
38 | }; | |
39 | ||
40 | struct imx_drm_crtc { | |
41 | struct drm_crtc *crtc; | |
e692da4d SH |
42 | int pipe; |
43 | struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs; | |
e7d6231e RK |
44 | void *cookie; |
45 | int id; | |
e76171b0 | 46 | int mux_id; |
e692da4d SH |
47 | }; |
48 | ||
8acba02f RK |
49 | static int legacyfb_depth = 16; |
50 | module_param(legacyfb_depth, int, 0444); | |
51 | ||
b8d181e4 PZ |
52 | int imx_drm_crtc_id(struct imx_drm_crtc *crtc) |
53 | { | |
54 | return crtc->pipe; | |
55 | } | |
9c74360f | 56 | EXPORT_SYMBOL_GPL(imx_drm_crtc_id); |
b8d181e4 | 57 | |
e692da4d SH |
58 | static void imx_drm_driver_lastclose(struct drm_device *drm) |
59 | { | |
8acba02f | 60 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) |
e692da4d SH |
61 | struct imx_drm_device *imxdrm = drm->dev_private; |
62 | ||
63 | if (imxdrm->fbhelper) | |
64 | drm_fbdev_cma_restore_mode(imxdrm->fbhelper); | |
8acba02f | 65 | #endif |
e692da4d SH |
66 | } |
67 | ||
68 | static int imx_drm_driver_unload(struct drm_device *drm) | |
69 | { | |
8acba02f | 70 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) |
e692da4d | 71 | struct imx_drm_device *imxdrm = drm->dev_private; |
3e68439b RK |
72 | #endif |
73 | ||
74 | drm_kms_helper_poll_fini(drm); | |
e692da4d | 75 | |
3e68439b | 76 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) |
8acba02f RK |
77 | if (imxdrm->fbhelper) |
78 | drm_fbdev_cma_fini(imxdrm->fbhelper); | |
79 | #endif | |
80 | ||
17b5001b RK |
81 | component_unbind_all(drm->dev, drm); |
82 | ||
020a9ea7 | 83 | drm_vblank_cleanup(drm); |
020a9ea7 | 84 | drm_mode_config_cleanup(drm); |
e692da4d SH |
85 | |
86 | return 0; | |
87 | } | |
88 | ||
887eceac | 89 | 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 | ||
f2d66aad | 101 | int imx_drm_panel_format_pins(struct drm_encoder *encoder, |
2ea42608 | 102 | u32 interface_pix_fmt, 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 RK |
113 | return helper->set_interface_pix_fmt(encoder->crtc, |
114 | encoder->encoder_type, interface_pix_fmt, | |
2ea42608 | 115 | hsync_pin, vsync_pin); |
e692da4d SH |
116 | return 0; |
117 | } | |
f2d66aad | 118 | EXPORT_SYMBOL_GPL(imx_drm_panel_format_pins); |
2ea42608 | 119 | |
f2d66aad | 120 | int imx_drm_panel_format(struct drm_encoder *encoder, u32 interface_pix_fmt) |
2ea42608 | 121 | { |
f2d66aad | 122 | return imx_drm_panel_format_pins(encoder, interface_pix_fmt, 2, 3); |
2ea42608 | 123 | } |
f2d66aad | 124 | EXPORT_SYMBOL_GPL(imx_drm_panel_format); |
e692da4d SH |
125 | |
126 | int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) | |
127 | { | |
b5ea1492 | 128 | return drm_vblank_get(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
129 | } |
130 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); | |
131 | ||
132 | void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) | |
133 | { | |
b5ea1492 | 134 | drm_vblank_put(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
135 | } |
136 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); | |
137 | ||
138 | void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) | |
139 | { | |
b5ea1492 | 140 | drm_handle_vblank(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); |
e692da4d SH |
141 | } |
142 | EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); | |
143 | ||
144 | static int imx_drm_enable_vblank(struct drm_device *drm, int crtc) | |
145 | { | |
146 | struct imx_drm_device *imxdrm = drm->dev_private; | |
887eceac | 147 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[crtc]; |
e692da4d SH |
148 | int ret; |
149 | ||
e692da4d SH |
150 | if (!imx_drm_crtc) |
151 | return -EINVAL; | |
152 | ||
153 | if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank) | |
154 | return -ENOSYS; | |
155 | ||
156 | ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank( | |
157 | imx_drm_crtc->crtc); | |
158 | ||
159 | return ret; | |
160 | } | |
161 | ||
162 | static void imx_drm_disable_vblank(struct drm_device *drm, int crtc) | |
163 | { | |
164 | struct imx_drm_device *imxdrm = drm->dev_private; | |
887eceac | 165 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[crtc]; |
e692da4d | 166 | |
e692da4d SH |
167 | if (!imx_drm_crtc) |
168 | return; | |
169 | ||
170 | if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank) | |
171 | return; | |
172 | ||
173 | imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); | |
174 | } | |
175 | ||
6ee4d7fe SH |
176 | static void imx_drm_driver_preclose(struct drm_device *drm, |
177 | struct drm_file *file) | |
178 | { | |
179 | int i; | |
180 | ||
181 | if (!file->is_master) | |
182 | return; | |
183 | ||
942325c8 RK |
184 | for (i = 0; i < MAX_CRTC; i++) |
185 | imx_drm_disable_vblank(drm, i); | |
6ee4d7fe SH |
186 | } |
187 | ||
e692da4d SH |
188 | static const struct file_operations imx_drm_driver_fops = { |
189 | .owner = THIS_MODULE, | |
190 | .open = drm_open, | |
191 | .release = drm_release, | |
192 | .unlocked_ioctl = drm_ioctl, | |
193 | .mmap = drm_gem_cma_mmap, | |
194 | .poll = drm_poll, | |
e692da4d SH |
195 | .read = drm_read, |
196 | .llseek = noop_llseek, | |
197 | }; | |
198 | ||
baa68c4b RK |
199 | int imx_drm_connector_mode_valid(struct drm_connector *connector, |
200 | struct drm_display_mode *mode) | |
201 | { | |
202 | return MODE_OK; | |
203 | } | |
204 | EXPORT_SYMBOL(imx_drm_connector_mode_valid); | |
205 | ||
8a51a33b RK |
206 | void imx_drm_connector_destroy(struct drm_connector *connector) |
207 | { | |
208 | drm_sysfs_connector_remove(connector); | |
209 | drm_connector_cleanup(connector); | |
210 | } | |
211 | EXPORT_SYMBOL_GPL(imx_drm_connector_destroy); | |
212 | ||
213 | void imx_drm_encoder_destroy(struct drm_encoder *encoder) | |
214 | { | |
215 | drm_encoder_cleanup(encoder); | |
216 | } | |
217 | EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy); | |
218 | ||
3e68439b RK |
219 | static void imx_drm_output_poll_changed(struct drm_device *drm) |
220 | { | |
221 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) | |
222 | struct imx_drm_device *imxdrm = drm->dev_private; | |
223 | ||
224 | drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); | |
225 | #endif | |
226 | } | |
227 | ||
1df8b530 RK |
228 | static struct drm_mode_config_funcs imx_drm_mode_config_funcs = { |
229 | .fb_create = drm_fb_cma_create, | |
3e68439b | 230 | .output_poll_changed = imx_drm_output_poll_changed, |
1df8b530 RK |
231 | }; |
232 | ||
e692da4d | 233 | /* |
17b5001b RK |
234 | * Main DRM initialisation. This binds, initialises and registers |
235 | * with DRM the subcomponents of the driver. | |
e692da4d SH |
236 | */ |
237 | static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) | |
238 | { | |
b85f2b5d | 239 | struct imx_drm_device *imxdrm; |
e355e7dd | 240 | struct drm_connector *connector; |
e692da4d SH |
241 | int ret; |
242 | ||
b85f2b5d RK |
243 | imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL); |
244 | if (!imxdrm) | |
245 | return -ENOMEM; | |
246 | ||
e692da4d SH |
247 | imxdrm->drm = drm; |
248 | ||
249 | drm->dev_private = imxdrm; | |
250 | ||
251 | /* | |
252 | * enable drm irq mode. | |
4423843c | 253 | * - with irq_enabled = true, we can use the vblank feature. |
e692da4d SH |
254 | * |
255 | * P.S. note that we wouldn't use drm irq handler but | |
256 | * just specific driver own one instead because | |
257 | * drm framework supports only one irq handler and | |
258 | * drivers can well take care of their interrupts | |
259 | */ | |
4423843c | 260 | drm->irq_enabled = true; |
e692da4d | 261 | |
1df8b530 RK |
262 | /* |
263 | * set max width and height as default value(4096x4096). | |
264 | * this value would be used to check framebuffer size limitation | |
265 | * at drm_mode_addfb(). | |
266 | */ | |
267 | drm->mode_config.min_width = 64; | |
268 | drm->mode_config.min_height = 64; | |
269 | drm->mode_config.max_width = 4096; | |
270 | drm->mode_config.max_height = 4096; | |
271 | drm->mode_config.funcs = &imx_drm_mode_config_funcs; | |
272 | ||
e692da4d | 273 | drm_mode_config_init(drm); |
e692da4d | 274 | |
020a9ea7 | 275 | ret = drm_vblank_init(drm, MAX_CRTC); |
e692da4d | 276 | if (ret) |
8007875f | 277 | goto err_kms; |
e692da4d SH |
278 | |
279 | /* | |
e7d6231e RK |
280 | * with vblank_disable_allowed = true, vblank interrupt will be |
281 | * disabled by drm timer once a current process gives up ownership | |
282 | * of vblank event. (after drm_vblank_put function is called) | |
e692da4d | 283 | */ |
020a9ea7 | 284 | drm->vblank_disable_allowed = true; |
e692da4d | 285 | |
a72f8bee | 286 | platform_set_drvdata(drm->platformdev, drm); |
8d71de61 | 287 | |
17b5001b RK |
288 | /* Now try and bind all our sub-components */ |
289 | ret = component_bind_all(drm->dev, drm); | |
290 | if (ret) | |
ccec7f62 | 291 | goto err_vblank; |
e355e7dd RK |
292 | |
293 | /* | |
294 | * All components are now added, we can publish the connector sysfs | |
295 | * entries to userspace. This will generate hotplug events and so | |
296 | * userspace will expect to be able to access DRM at this point. | |
297 | */ | |
298 | list_for_each_entry(connector, &drm->mode_config.connector_list, head) { | |
299 | ret = drm_sysfs_connector_add(connector); | |
300 | if (ret) { | |
301 | dev_err(drm->dev, | |
302 | "[CONNECTOR:%d:%s] drm_sysfs_connector_add failed: %d\n", | |
303 | connector->base.id, | |
304 | drm_get_connector_name(connector), ret); | |
305 | goto err_unbind; | |
306 | } | |
307 | } | |
308 | ||
8acba02f RK |
309 | /* |
310 | * All components are now initialised, so setup the fb helper. | |
311 | * The fb helper takes copies of key hardware information, so the | |
312 | * crtcs/connectors/encoders must not change after this point. | |
313 | */ | |
314 | #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER) | |
315 | if (legacyfb_depth != 16 && legacyfb_depth != 32) { | |
316 | dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); | |
317 | legacyfb_depth = 16; | |
318 | } | |
319 | imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, | |
320 | drm->mode_config.num_crtc, MAX_CRTC); | |
321 | if (IS_ERR(imxdrm->fbhelper)) { | |
322 | ret = PTR_ERR(imxdrm->fbhelper); | |
323 | imxdrm->fbhelper = NULL; | |
324 | goto err_unbind; | |
325 | } | |
326 | #endif | |
3e68439b RK |
327 | |
328 | drm_kms_helper_poll_init(drm); | |
329 | ||
8007875f | 330 | return 0; |
a72f8bee | 331 | |
e355e7dd RK |
332 | err_unbind: |
333 | component_unbind_all(drm->dev, drm); | |
ccec7f62 | 334 | err_vblank: |
8007875f RK |
335 | drm_vblank_cleanup(drm); |
336 | err_kms: | |
8007875f | 337 | drm_mode_config_cleanup(drm); |
e692da4d SH |
338 | |
339 | return ret; | |
340 | } | |
341 | ||
e692da4d SH |
342 | /* |
343 | * imx_drm_add_crtc - add a new crtc | |
344 | * | |
345 | * The return value if !NULL is a cookie for the caller to pass to | |
346 | * imx_drm_remove_crtc later. | |
347 | */ | |
32266b45 | 348 | int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, |
e692da4d SH |
349 | struct imx_drm_crtc **new_crtc, |
350 | const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs, | |
32266b45 | 351 | void *cookie, int id) |
e692da4d | 352 | { |
32266b45 | 353 | struct imx_drm_device *imxdrm = drm->dev_private; |
e692da4d | 354 | struct imx_drm_crtc *imx_drm_crtc; |
e692da4d SH |
355 | int ret; |
356 | ||
fd6040ed RK |
357 | /* |
358 | * The vblank arrays are dimensioned by MAX_CRTC - we can't | |
359 | * pass IDs greater than this to those functions. | |
360 | */ | |
e7d6231e RK |
361 | if (imxdrm->pipes >= MAX_CRTC) |
362 | return -EINVAL; | |
fd6040ed | 363 | |
e7d6231e RK |
364 | if (imxdrm->drm->open_count) |
365 | return -EBUSY; | |
e692da4d SH |
366 | |
367 | imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL); | |
e7d6231e RK |
368 | if (!imx_drm_crtc) |
369 | return -ENOMEM; | |
e692da4d SH |
370 | |
371 | imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; | |
372 | imx_drm_crtc->pipe = imxdrm->pipes++; | |
e7d6231e RK |
373 | imx_drm_crtc->cookie = cookie; |
374 | imx_drm_crtc->id = id; | |
e76171b0 | 375 | imx_drm_crtc->mux_id = imx_drm_crtc->pipe; |
e692da4d | 376 | imx_drm_crtc->crtc = crtc; |
e692da4d | 377 | |
887eceac | 378 | imxdrm->crtc[imx_drm_crtc->pipe] = imx_drm_crtc; |
e692da4d SH |
379 | |
380 | *new_crtc = imx_drm_crtc; | |
381 | ||
ec9557d7 | 382 | ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256); |
e692da4d SH |
383 | if (ret) |
384 | goto err_register; | |
385 | ||
ec9557d7 RK |
386 | drm_crtc_helper_add(crtc, |
387 | imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); | |
388 | ||
32266b45 | 389 | drm_crtc_init(drm, crtc, |
ec9557d7 RK |
390 | imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs); |
391 | ||
e692da4d SH |
392 | return 0; |
393 | ||
394 | err_register: | |
887eceac | 395 | imxdrm->crtc[imx_drm_crtc->pipe] = NULL; |
e692da4d | 396 | kfree(imx_drm_crtc); |
e692da4d SH |
397 | return ret; |
398 | } | |
399 | EXPORT_SYMBOL_GPL(imx_drm_add_crtc); | |
400 | ||
401 | /* | |
402 | * imx_drm_remove_crtc - remove a crtc | |
403 | */ | |
404 | int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc) | |
405 | { | |
ccec7f62 | 406 | struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private; |
e692da4d SH |
407 | |
408 | drm_crtc_cleanup(imx_drm_crtc->crtc); | |
409 | ||
887eceac | 410 | imxdrm->crtc[imx_drm_crtc->pipe] = NULL; |
e692da4d | 411 | |
e692da4d SH |
412 | kfree(imx_drm_crtc); |
413 | ||
414 | return 0; | |
415 | } | |
416 | EXPORT_SYMBOL_GPL(imx_drm_remove_crtc); | |
417 | ||
9e2d410d RK |
418 | /* |
419 | * Find the DRM CRTC possible mask for the device node cookie/id. | |
420 | * | |
421 | * The encoder possible masks are defined by their position in the | |
422 | * mode_config crtc_list. This means that CRTCs must not be added | |
423 | * or removed once the DRM device has been fully initialised. | |
424 | */ | |
425 | static uint32_t imx_drm_find_crtc_mask(struct imx_drm_device *imxdrm, | |
426 | void *cookie, int id) | |
427 | { | |
428 | unsigned i; | |
429 | ||
430 | for (i = 0; i < MAX_CRTC; i++) { | |
431 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[i]; | |
e7d6231e RK |
432 | if (imx_drm_crtc && imx_drm_crtc->id == id && |
433 | imx_drm_crtc->cookie == cookie) | |
9e2d410d RK |
434 | return drm_crtc_mask(imx_drm_crtc->crtc); |
435 | } | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
440 | int imx_drm_encoder_parse_of(struct drm_device *drm, | |
441 | struct drm_encoder *encoder, struct device_node *np) | |
442 | { | |
443 | struct imx_drm_device *imxdrm = drm->dev_private; | |
444 | uint32_t crtc_mask = 0; | |
445 | int i, ret = 0; | |
446 | ||
447 | for (i = 0; !ret; i++) { | |
448 | struct of_phandle_args args; | |
449 | uint32_t mask; | |
450 | int id; | |
451 | ||
452 | ret = of_parse_phandle_with_args(np, "crtcs", "#crtc-cells", i, | |
453 | &args); | |
454 | if (ret == -ENOENT) | |
455 | break; | |
456 | if (ret < 0) | |
457 | return ret; | |
458 | ||
459 | id = args.args_count > 0 ? args.args[0] : 0; | |
460 | mask = imx_drm_find_crtc_mask(imxdrm, args.np, id); | |
461 | of_node_put(args.np); | |
462 | ||
463 | /* | |
464 | * If we failed to find the CRTC(s) which this encoder is | |
465 | * supposed to be connected to, it's because the CRTC has | |
466 | * not been registered yet. Defer probing, and hope that | |
467 | * the required CRTC is added later. | |
468 | */ | |
469 | if (mask == 0) | |
470 | return -EPROBE_DEFER; | |
471 | ||
472 | crtc_mask |= mask; | |
473 | } | |
474 | ||
475 | encoder->possible_crtcs = crtc_mask; | |
476 | ||
477 | /* FIXME: this is the mask of outputs which can clone this output. */ | |
478 | encoder->possible_clones = ~0; | |
479 | ||
480 | return 0; | |
481 | } | |
482 | EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); | |
483 | ||
e76171b0 | 484 | int imx_drm_encoder_get_mux_id(struct drm_encoder *encoder) |
e692da4d | 485 | { |
887eceac | 486 | struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc); |
e692da4d | 487 | |
887eceac | 488 | return imx_crtc ? imx_crtc->mux_id : -EINVAL; |
e692da4d | 489 | } |
ea8d1583 | 490 | EXPORT_SYMBOL_GPL(imx_drm_encoder_get_mux_id); |
e692da4d | 491 | |
baa70943 | 492 | static const struct drm_ioctl_desc imx_drm_ioctls[] = { |
e692da4d SH |
493 | /* none so far */ |
494 | }; | |
495 | ||
496 | static struct drm_driver imx_drm_driver = { | |
bd3665c9 | 497 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
e692da4d SH |
498 | .load = imx_drm_driver_load, |
499 | .unload = imx_drm_driver_unload, | |
e692da4d | 500 | .lastclose = imx_drm_driver_lastclose, |
6ee4d7fe | 501 | .preclose = imx_drm_driver_preclose, |
e692da4d SH |
502 | .gem_free_object = drm_gem_cma_free_object, |
503 | .gem_vm_ops = &drm_gem_cma_vm_ops, | |
504 | .dumb_create = drm_gem_cma_dumb_create, | |
505 | .dumb_map_offset = drm_gem_cma_dumb_map_offset, | |
43387b37 | 506 | .dumb_destroy = drm_gem_dumb_destroy, |
e692da4d | 507 | |
bd3665c9 PZ |
508 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
509 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
510 | .gem_prime_import = drm_gem_prime_import, | |
511 | .gem_prime_export = drm_gem_prime_export, | |
512 | .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, | |
513 | .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, | |
514 | .gem_prime_vmap = drm_gem_cma_prime_vmap, | |
515 | .gem_prime_vunmap = drm_gem_cma_prime_vunmap, | |
516 | .gem_prime_mmap = drm_gem_cma_prime_mmap, | |
e692da4d SH |
517 | .get_vblank_counter = drm_vblank_count, |
518 | .enable_vblank = imx_drm_enable_vblank, | |
519 | .disable_vblank = imx_drm_disable_vblank, | |
520 | .ioctls = imx_drm_ioctls, | |
521 | .num_ioctls = ARRAY_SIZE(imx_drm_ioctls), | |
522 | .fops = &imx_drm_driver_fops, | |
523 | .name = "imx-drm", | |
524 | .desc = "i.MX DRM graphics", | |
525 | .date = "20120507", | |
526 | .major = 1, | |
527 | .minor = 0, | |
528 | .patchlevel = 0, | |
529 | }; | |
530 | ||
17b5001b RK |
531 | static int compare_parent_of(struct device *dev, void *data) |
532 | { | |
533 | struct of_phandle_args *args = data; | |
534 | return dev->parent && dev->parent->of_node == args->np; | |
535 | } | |
536 | ||
537 | static int compare_of(struct device *dev, void *data) | |
538 | { | |
539 | return dev->of_node == data; | |
540 | } | |
541 | ||
542 | static int imx_drm_add_components(struct device *master, struct master *m) | |
543 | { | |
544 | struct device_node *np = master->of_node; | |
545 | unsigned i; | |
546 | int ret; | |
547 | ||
548 | for (i = 0; ; i++) { | |
549 | struct of_phandle_args args; | |
550 | ||
551 | ret = of_parse_phandle_with_fixed_args(np, "crtcs", 1, | |
552 | i, &args); | |
553 | if (ret) | |
554 | break; | |
555 | ||
556 | ret = component_master_add_child(m, compare_parent_of, &args); | |
557 | of_node_put(args.np); | |
558 | ||
559 | if (ret) | |
560 | return ret; | |
561 | } | |
562 | ||
563 | for (i = 0; ; i++) { | |
564 | struct device_node *node; | |
565 | ||
566 | node = of_parse_phandle(np, "connectors", i); | |
567 | if (!node) | |
568 | break; | |
569 | ||
570 | ret = component_master_add_child(m, compare_of, node); | |
571 | of_node_put(node); | |
572 | ||
573 | if (ret) | |
574 | return ret; | |
575 | } | |
576 | return 0; | |
577 | } | |
578 | ||
579 | static int imx_drm_bind(struct device *dev) | |
580 | { | |
581 | return drm_platform_init(&imx_drm_driver, to_platform_device(dev)); | |
582 | } | |
583 | ||
584 | static void imx_drm_unbind(struct device *dev) | |
585 | { | |
586 | drm_put_dev(dev_get_drvdata(dev)); | |
587 | } | |
588 | ||
589 | static const struct component_master_ops imx_drm_ops = { | |
590 | .add_components = imx_drm_add_components, | |
591 | .bind = imx_drm_bind, | |
592 | .unbind = imx_drm_unbind, | |
593 | }; | |
594 | ||
e692da4d SH |
595 | static int imx_drm_platform_probe(struct platform_device *pdev) |
596 | { | |
4cdbb4ff RK |
597 | int ret; |
598 | ||
599 | ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); | |
600 | if (ret) | |
601 | return ret; | |
602 | ||
17b5001b | 603 | return component_master_add(&pdev->dev, &imx_drm_ops); |
e692da4d SH |
604 | } |
605 | ||
606 | static int imx_drm_platform_remove(struct platform_device *pdev) | |
607 | { | |
17b5001b | 608 | component_master_del(&pdev->dev, &imx_drm_ops); |
e692da4d SH |
609 | return 0; |
610 | } | |
611 | ||
17b5001b RK |
612 | static const struct of_device_id imx_drm_dt_ids[] = { |
613 | { .compatible = "fsl,imx-drm", }, | |
614 | { /* sentinel */ }, | |
615 | }; | |
616 | MODULE_DEVICE_TABLE(of, imx_drm_dt_ids); | |
617 | ||
e692da4d SH |
618 | static struct platform_driver imx_drm_pdrv = { |
619 | .probe = imx_drm_platform_probe, | |
99c28f10 | 620 | .remove = imx_drm_platform_remove, |
e692da4d SH |
621 | .driver = { |
622 | .owner = THIS_MODULE, | |
623 | .name = "imx-drm", | |
17b5001b | 624 | .of_match_table = imx_drm_dt_ids, |
e692da4d SH |
625 | }, |
626 | }; | |
b85f2b5d | 627 | module_platform_driver(imx_drm_pdrv); |
e692da4d SH |
628 | |
629 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); | |
630 | MODULE_DESCRIPTION("i.MX drm driver core"); | |
631 | MODULE_LICENSE("GPL"); |