2 * drivers/staging/omapdrm/omap_drv.c
4 * Copyright (C) 2011 Texas Instruments
5 * Author: Rob Clark <rob@ti.com>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "drm_crtc_helper.h"
23 #include "drm_fb_helper.h"
24 #include "omap_dmm_tiler.h"
26 #define DRIVER_NAME MODULE_NAME
27 #define DRIVER_DESC "OMAP DRM"
28 #define DRIVER_DATE "20110917"
29 #define DRIVER_MAJOR 1
30 #define DRIVER_MINOR 0
31 #define DRIVER_PATCHLEVEL 0
33 struct drm_device
*drm_device
;
35 static int num_crtc
= CONFIG_DRM_OMAP_NUM_CRTCS
;
37 MODULE_PARM_DESC(num_crtc
, "Number of overlays to use as CRTCs");
38 module_param(num_crtc
, int, 0600);
44 /* Notes about mapping DSS and DRM entities:
46 * encoder: manager.. with some extension to allow one primary CRTC
47 * and zero or more video CRTC's to be mapped to one encoder?
48 * connector: dssdev.. manager can be attached/detached from different
52 static void omap_fb_output_poll_changed(struct drm_device
*dev
)
54 struct omap_drm_private
*priv
= dev
->dev_private
;
57 drm_fb_helper_hotplug_event(priv
->fbdev
);
61 static const struct drm_mode_config_funcs omap_mode_config_funcs
= {
62 .fb_create
= omap_framebuffer_create
,
63 .output_poll_changed
= omap_fb_output_poll_changed
,
66 static int get_connector_type(struct omap_dss_device
*dssdev
)
68 switch (dssdev
->type
) {
69 case OMAP_DISPLAY_TYPE_HDMI
:
70 return DRM_MODE_CONNECTOR_HDMIA
;
71 case OMAP_DISPLAY_TYPE_DPI
:
72 if (!strcmp(dssdev
->name
, "dvi"))
73 return DRM_MODE_CONNECTOR_DVID
;
76 return DRM_MODE_CONNECTOR_Unknown
;
80 #if 0 /* enable when dss2 supports hotplug */
81 static int omap_drm_notifier(struct notifier_block
*nb
,
82 unsigned long evt
, void *arg
)
85 case OMAP_DSS_SIZE_CHANGE
:
86 case OMAP_DSS_HOTPLUG_CONNECT
:
87 case OMAP_DSS_HOTPLUG_DISCONNECT
: {
88 struct drm_device
*dev
= drm_device
;
89 DBG("hotplug event: evt=%d, dev=%p", evt
, dev
);
91 drm_sysfs_hotplug_event(dev
);
95 default: /* don't care about other events for now */
101 static void dump_video_chains(void)
105 DBG("dumping video chains: ");
106 for (i
= 0; i
< omap_dss_get_num_overlays(); i
++) {
107 struct omap_overlay
*ovl
= omap_dss_get_overlay(i
);
108 struct omap_overlay_manager
*mgr
= ovl
->manager
;
109 struct omap_dss_device
*dssdev
= mgr
?
110 mgr
->get_device(mgr
) : NULL
;
112 DBG("%d: %s -> %s -> %s", i
, ovl
->name
, mgr
->name
,
115 DBG("%d: %s -> %s", i
, ovl
->name
, mgr
->name
);
117 DBG("%d: %s", i
, ovl
->name
);
122 /* create encoders for each manager */
123 static int create_encoder(struct drm_device
*dev
,
124 struct omap_overlay_manager
*mgr
)
126 struct omap_drm_private
*priv
= dev
->dev_private
;
127 struct drm_encoder
*encoder
= omap_encoder_init(dev
, mgr
);
130 dev_err(dev
->dev
, "could not create encoder: %s\n",
135 BUG_ON(priv
->num_encoders
>= ARRAY_SIZE(priv
->encoders
));
137 priv
->encoders
[priv
->num_encoders
++] = encoder
;
142 /* create connectors for each display device */
143 static int create_connector(struct drm_device
*dev
,
144 struct omap_dss_device
*dssdev
)
146 struct omap_drm_private
*priv
= dev
->dev_private
;
147 static struct notifier_block
*notifier
;
148 struct drm_connector
*connector
;
151 if (!dssdev
->driver
) {
152 dev_warn(dev
->dev
, "%s has no driver.. skipping it\n",
157 if (!(dssdev
->driver
->get_timings
||
158 dssdev
->driver
->read_edid
)) {
159 dev_warn(dev
->dev
, "%s driver does not support "
160 "get_timings or read_edid.. skipping it!\n",
165 connector
= omap_connector_init(dev
,
166 get_connector_type(dssdev
), dssdev
);
169 dev_err(dev
->dev
, "could not create connector: %s\n",
174 BUG_ON(priv
->num_connectors
>= ARRAY_SIZE(priv
->connectors
));
176 priv
->connectors
[priv
->num_connectors
++] = connector
;
178 #if 0 /* enable when dss2 supports hotplug */
179 notifier
= kzalloc(sizeof(struct notifier_block
), GFP_KERNEL
);
180 notifier
->notifier_call
= omap_drm_notifier
;
181 omap_dss_add_notify(dssdev
, notifier
);
186 for (j
= 0; j
< priv
->num_encoders
; j
++) {
187 struct omap_overlay_manager
*mgr
=
188 omap_encoder_get_manager(priv
->encoders
[j
]);
189 if (mgr
->get_device(mgr
) == dssdev
) {
190 drm_mode_connector_attach_encoder(connector
,
198 /* create up to max_overlays CRTCs mapping to overlays.. by default,
199 * connect the overlays to different managers/encoders, giving priority
200 * to encoders connected to connectors with a detected connection
202 static int create_crtc(struct drm_device
*dev
, struct omap_overlay
*ovl
,
203 int *j
, unsigned int connected_connectors
)
205 struct omap_drm_private
*priv
= dev
->dev_private
;
206 struct omap_overlay_manager
*mgr
= NULL
;
207 struct drm_crtc
*crtc
;
209 /* find next best connector, ones with detected connection first
211 while (*j
< priv
->num_connectors
&& !mgr
) {
212 if (connected_connectors
& (1 << *j
)) {
213 struct drm_encoder
*encoder
=
214 omap_connector_attached_encoder(
215 priv
->connectors
[*j
]);
217 mgr
= omap_encoder_get_manager(encoder
);
223 /* if we couldn't find another connected connector, lets start
224 * looking at the unconnected connectors:
226 * note: it might not be immediately apparent, but thanks to
227 * the !mgr check in both this loop and the one above, the only
228 * way to enter this loop is with *j == priv->num_connectors,
229 * so idx can never go negative.
231 while (*j
< 2 * priv
->num_connectors
&& !mgr
) {
232 int idx
= *j
- priv
->num_connectors
;
233 if (!(connected_connectors
& (1 << idx
))) {
234 struct drm_encoder
*encoder
=
235 omap_connector_attached_encoder(
236 priv
->connectors
[idx
]);
238 mgr
= omap_encoder_get_manager(encoder
);
244 crtc
= omap_crtc_init(dev
, ovl
, priv
->num_crtcs
);
247 dev_err(dev
->dev
, "could not create CRTC: %s\n",
252 BUG_ON(priv
->num_crtcs
>= ARRAY_SIZE(priv
->crtcs
));
254 priv
->crtcs
[priv
->num_crtcs
++] = crtc
;
259 static int create_plane(struct drm_device
*dev
, struct omap_overlay
*ovl
,
260 unsigned int possible_crtcs
)
262 struct omap_drm_private
*priv
= dev
->dev_private
;
263 struct drm_plane
*plane
=
264 omap_plane_init(dev
, ovl
, possible_crtcs
, false);
267 dev_err(dev
->dev
, "could not create plane: %s\n",
272 BUG_ON(priv
->num_planes
>= ARRAY_SIZE(priv
->planes
));
274 priv
->planes
[priv
->num_planes
++] = plane
;
279 static int match_dev_name(struct omap_dss_device
*dssdev
, void *data
)
281 return !strcmp(dssdev
->name
, data
);
284 static unsigned int detect_connectors(struct drm_device
*dev
)
286 struct omap_drm_private
*priv
= dev
->dev_private
;
287 unsigned int connected_connectors
= 0;
290 for (i
= 0; i
< priv
->num_connectors
; i
++) {
291 struct drm_connector
*connector
= priv
->connectors
[i
];
292 if (omap_connector_detect(connector
, true) ==
293 connector_status_connected
) {
294 connected_connectors
|= (1 << i
);
298 return connected_connectors
;
301 static int omap_modeset_init(struct drm_device
*dev
)
303 const struct omap_drm_platform_data
*pdata
= dev
->dev
->platform_data
;
304 struct omap_kms_platform_data
*kms_pdata
= NULL
;
305 struct omap_drm_private
*priv
= dev
->dev_private
;
306 struct omap_dss_device
*dssdev
= NULL
;
308 unsigned int connected_connectors
= 0;
310 drm_mode_config_init(dev
);
312 if (pdata
&& pdata
->kms_pdata
) {
313 kms_pdata
= pdata
->kms_pdata
;
315 /* if platform data is provided by the board file, use it to
316 * control which overlays, managers, and devices we own.
318 for (i
= 0; i
< kms_pdata
->mgr_cnt
; i
++) {
319 struct omap_overlay_manager
*mgr
=
320 omap_dss_get_overlay_manager(
321 kms_pdata
->mgr_ids
[i
]);
322 create_encoder(dev
, mgr
);
325 for (i
= 0; i
< kms_pdata
->dev_cnt
; i
++) {
326 struct omap_dss_device
*dssdev
=
327 omap_dss_find_device(
328 (void *)kms_pdata
->dev_names
[i
],
331 dev_warn(dev
->dev
, "no such dssdev: %s\n",
332 kms_pdata
->dev_names
[i
]);
335 create_connector(dev
, dssdev
);
338 connected_connectors
= detect_connectors(dev
);
341 for (i
= 0; i
< kms_pdata
->ovl_cnt
; i
++) {
342 struct omap_overlay
*ovl
=
343 omap_dss_get_overlay(kms_pdata
->ovl_ids
[i
]);
344 create_crtc(dev
, ovl
, &j
, connected_connectors
);
347 for (i
= 0; i
< kms_pdata
->pln_cnt
; i
++) {
348 struct omap_overlay
*ovl
=
349 omap_dss_get_overlay(kms_pdata
->pln_ids
[i
]);
350 create_plane(dev
, ovl
, (1 << priv
->num_crtcs
) - 1);
353 /* otherwise just grab up to CONFIG_DRM_OMAP_NUM_CRTCS and try
354 * to make educated guesses about everything else
356 int max_overlays
= min(omap_dss_get_num_overlays(), num_crtc
);
358 for (i
= 0; i
< omap_dss_get_num_overlay_managers(); i
++) {
359 create_encoder(dev
, omap_dss_get_overlay_manager(i
));
362 for_each_dss_dev(dssdev
) {
363 create_connector(dev
, dssdev
);
366 connected_connectors
= detect_connectors(dev
);
369 for (i
= 0; i
< max_overlays
; i
++) {
370 create_crtc(dev
, omap_dss_get_overlay(i
),
371 &j
, connected_connectors
);
374 /* use any remaining overlays as drm planes */
375 for (; i
< omap_dss_get_num_overlays(); i
++) {
376 struct omap_overlay
*ovl
= omap_dss_get_overlay(i
);
377 create_plane(dev
, ovl
, (1 << priv
->num_crtcs
) - 1);
381 /* for now keep the mapping of CRTCs and encoders static.. */
382 for (i
= 0; i
< priv
->num_encoders
; i
++) {
383 struct drm_encoder
*encoder
= priv
->encoders
[i
];
384 struct omap_overlay_manager
*mgr
=
385 omap_encoder_get_manager(encoder
);
387 encoder
->possible_crtcs
= (1 << priv
->num_crtcs
) - 1;
389 DBG("%s: possible_crtcs=%08x", mgr
->name
,
390 encoder
->possible_crtcs
);
395 dev
->mode_config
.min_width
= 32;
396 dev
->mode_config
.min_height
= 32;
398 /* note: eventually will need some cpu_is_omapXYZ() type stuff here
399 * to fill in these limits properly on different OMAP generations..
401 dev
->mode_config
.max_width
= 2048;
402 dev
->mode_config
.max_height
= 2048;
404 dev
->mode_config
.funcs
= &omap_mode_config_funcs
;
409 static void omap_modeset_free(struct drm_device
*dev
)
411 drm_mode_config_cleanup(dev
);
419 static int ioctl_get_param(struct drm_device
*dev
, void *data
,
420 struct drm_file
*file_priv
)
422 struct drm_omap_param
*args
= data
;
424 DBG("%p: param=%llu", dev
, args
->param
);
426 switch (args
->param
) {
427 case OMAP_PARAM_CHIPSET_ID
:
428 args
->value
= GET_OMAP_TYPE
;
431 DBG("unknown parameter %lld", args
->param
);
438 static int ioctl_set_param(struct drm_device
*dev
, void *data
,
439 struct drm_file
*file_priv
)
441 struct drm_omap_param
*args
= data
;
443 switch (args
->param
) {
445 DBG("unknown parameter %lld", args
->param
);
452 static int ioctl_gem_new(struct drm_device
*dev
, void *data
,
453 struct drm_file
*file_priv
)
455 struct drm_omap_gem_new
*args
= data
;
456 DBG("%p:%p: size=0x%08x, flags=%08x", dev
, file_priv
,
457 args
->size
.bytes
, args
->flags
);
458 return omap_gem_new_handle(dev
, file_priv
, args
->size
,
459 args
->flags
, &args
->handle
);
462 static int ioctl_gem_cpu_prep(struct drm_device
*dev
, void *data
,
463 struct drm_file
*file_priv
)
465 struct drm_omap_gem_cpu_prep
*args
= data
;
466 struct drm_gem_object
*obj
;
469 VERB("%p:%p: handle=%d, op=%x", dev
, file_priv
, args
->handle
, args
->op
);
471 obj
= drm_gem_object_lookup(dev
, file_priv
, args
->handle
);
476 ret
= omap_gem_op_sync(obj
, args
->op
);
479 ret
= omap_gem_op_start(obj
, args
->op
);
482 drm_gem_object_unreference_unlocked(obj
);
487 static int ioctl_gem_cpu_fini(struct drm_device
*dev
, void *data
,
488 struct drm_file
*file_priv
)
490 struct drm_omap_gem_cpu_fini
*args
= data
;
491 struct drm_gem_object
*obj
;
494 VERB("%p:%p: handle=%d", dev
, file_priv
, args
->handle
);
496 obj
= drm_gem_object_lookup(dev
, file_priv
, args
->handle
);
501 /* XXX flushy, flushy */
505 ret
= omap_gem_op_finish(obj
, args
->op
);
508 drm_gem_object_unreference_unlocked(obj
);
513 static int ioctl_gem_info(struct drm_device
*dev
, void *data
,
514 struct drm_file
*file_priv
)
516 struct drm_omap_gem_info
*args
= data
;
517 struct drm_gem_object
*obj
;
520 DBG("%p:%p: handle=%d", dev
, file_priv
, args
->handle
);
522 obj
= drm_gem_object_lookup(dev
, file_priv
, args
->handle
);
527 args
->size
= omap_gem_mmap_size(obj
);
528 args
->offset
= omap_gem_mmap_offset(obj
);
530 drm_gem_object_unreference_unlocked(obj
);
535 struct drm_ioctl_desc ioctls
[DRM_COMMAND_END
- DRM_COMMAND_BASE
] = {
536 DRM_IOCTL_DEF_DRV(OMAP_GET_PARAM
, ioctl_get_param
, DRM_UNLOCKED
|DRM_AUTH
),
537 DRM_IOCTL_DEF_DRV(OMAP_SET_PARAM
, ioctl_set_param
, DRM_UNLOCKED
|DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
538 DRM_IOCTL_DEF_DRV(OMAP_GEM_NEW
, ioctl_gem_new
, DRM_UNLOCKED
|DRM_AUTH
),
539 DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_PREP
, ioctl_gem_cpu_prep
, DRM_UNLOCKED
|DRM_AUTH
),
540 DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_FINI
, ioctl_gem_cpu_fini
, DRM_UNLOCKED
|DRM_AUTH
),
541 DRM_IOCTL_DEF_DRV(OMAP_GEM_INFO
, ioctl_gem_info
, DRM_UNLOCKED
|DRM_AUTH
),
549 * load - setup chip and create an initial config
551 * @flags: startup flags
553 * The driver load routine has to do several things:
554 * - initialize the memory manager
555 * - allocate initial config memory
556 * - setup the DRM framebuffer with the allocated memory
558 static int dev_load(struct drm_device
*dev
, unsigned long flags
)
560 struct omap_drm_private
*priv
;
563 DBG("load: dev=%p", dev
);
567 priv
= kzalloc(sizeof(*priv
), GFP_KERNEL
);
569 dev_err(dev
->dev
, "could not allocate priv\n");
573 dev
->dev_private
= priv
;
575 priv
->wq
= alloc_ordered_workqueue("omapdrm", 0);
577 INIT_LIST_HEAD(&priv
->obj_list
);
581 ret
= omap_modeset_init(dev
);
583 dev_err(dev
->dev
, "omap_modeset_init failed: ret=%d\n", ret
);
584 dev
->dev_private
= NULL
;
589 priv
->fbdev
= omap_fbdev_init(dev
);
591 dev_warn(dev
->dev
, "omap_fbdev_init failed\n");
592 /* well, limp along without an fbdev.. maybe X11 will work? */
595 drm_kms_helper_poll_init(dev
);
597 ret
= drm_vblank_init(dev
, priv
->num_crtcs
);
599 dev_warn(dev
->dev
, "could not init vblank\n");
605 static int dev_unload(struct drm_device
*dev
)
607 struct omap_drm_private
*priv
= dev
->dev_private
;
609 DBG("unload: dev=%p", dev
);
611 drm_vblank_cleanup(dev
);
612 drm_kms_helper_poll_fini(dev
);
614 omap_fbdev_free(dev
);
615 omap_modeset_free(dev
);
616 omap_gem_deinit(dev
);
618 flush_workqueue(priv
->wq
);
619 destroy_workqueue(priv
->wq
);
621 kfree(dev
->dev_private
);
622 dev
->dev_private
= NULL
;
627 static int dev_open(struct drm_device
*dev
, struct drm_file
*file
)
629 file
->driver_priv
= NULL
;
631 DBG("open: dev=%p, file=%p", dev
, file
);
636 static int dev_firstopen(struct drm_device
*dev
)
638 DBG("firstopen: dev=%p", dev
);
643 * lastclose - clean up after all DRM clients have exited
646 * Take care of cleaning up after all DRM clients have exited. In the
647 * mode setting case, we want to restore the kernel's initial mode (just
648 * in case the last client left us in a bad state).
650 static void dev_lastclose(struct drm_device
*dev
)
654 /* we don't support vga-switcheroo.. so just make sure the fbdev
657 struct omap_drm_private
*priv
= dev
->dev_private
;
660 DBG("lastclose: dev=%p", dev
);
662 /* need to restore default rotation state.. not sure if there is
663 * a cleaner way to restore properties to default state? Maybe
664 * a flag that properties should automatically be restored to
665 * default state on lastclose?
667 for (i
= 0; i
< priv
->num_crtcs
; i
++) {
668 drm_object_property_set_value(&priv
->crtcs
[i
]->base
,
669 priv
->rotation_prop
, 0);
672 for (i
= 0; i
< priv
->num_planes
; i
++) {
673 drm_object_property_set_value(&priv
->planes
[i
]->base
,
674 priv
->rotation_prop
, 0);
677 ret
= drm_fb_helper_restore_fbdev_mode(priv
->fbdev
);
679 DBG("failed to restore crtc mode");
682 static void dev_preclose(struct drm_device
*dev
, struct drm_file
*file
)
684 DBG("preclose: dev=%p", dev
);
687 static void dev_postclose(struct drm_device
*dev
, struct drm_file
*file
)
689 DBG("postclose: dev=%p, file=%p", dev
, file
);
693 * enable_vblank - enable vblank interrupt events
695 * @crtc: which irq to enable
697 * Enable vblank interrupts for @crtc. If the device doesn't have
698 * a hardware vblank counter, this routine should be a no-op, since
699 * interrupts will have to stay on to keep the count accurate.
702 * Zero on success, appropriate errno if the given @crtc's vblank
703 * interrupt cannot be enabled.
705 static int dev_enable_vblank(struct drm_device
*dev
, int crtc
)
707 DBG("enable_vblank: dev=%p, crtc=%d", dev
, crtc
);
712 * disable_vblank - disable vblank interrupt events
714 * @crtc: which irq to enable
716 * Disable vblank interrupts for @crtc. If the device doesn't have
717 * a hardware vblank counter, this routine should be a no-op, since
718 * interrupts will have to stay on to keep the count accurate.
720 static void dev_disable_vblank(struct drm_device
*dev
, int crtc
)
722 DBG("disable_vblank: dev=%p, crtc=%d", dev
, crtc
);
725 static irqreturn_t
dev_irq_handler(DRM_IRQ_ARGS
)
730 static void dev_irq_preinstall(struct drm_device
*dev
)
732 DBG("irq_preinstall: dev=%p", dev
);
735 static int dev_irq_postinstall(struct drm_device
*dev
)
737 DBG("irq_postinstall: dev=%p", dev
);
741 static void dev_irq_uninstall(struct drm_device
*dev
)
743 DBG("irq_uninstall: dev=%p", dev
);
746 static const struct vm_operations_struct omap_gem_vm_ops
= {
747 .fault
= omap_gem_fault
,
748 .open
= drm_gem_vm_open
,
749 .close
= drm_gem_vm_close
,
752 static const struct file_operations omapdriver_fops
= {
753 .owner
= THIS_MODULE
,
755 .unlocked_ioctl
= drm_ioctl
,
756 .release
= drm_release
,
757 .mmap
= omap_gem_mmap
,
759 .fasync
= drm_fasync
,
761 .llseek
= noop_llseek
,
764 static struct drm_driver omap_drm_driver
= {
766 DRIVER_HAVE_IRQ
| DRIVER_MODESET
| DRIVER_GEM
| DRIVER_PRIME
,
768 .unload
= dev_unload
,
770 .firstopen
= dev_firstopen
,
771 .lastclose
= dev_lastclose
,
772 .preclose
= dev_preclose
,
773 .postclose
= dev_postclose
,
774 .get_vblank_counter
= drm_vblank_count
,
775 .enable_vblank
= dev_enable_vblank
,
776 .disable_vblank
= dev_disable_vblank
,
777 .irq_preinstall
= dev_irq_preinstall
,
778 .irq_postinstall
= dev_irq_postinstall
,
779 .irq_uninstall
= dev_irq_uninstall
,
780 .irq_handler
= dev_irq_handler
,
781 #ifdef CONFIG_DEBUG_FS
782 .debugfs_init
= omap_debugfs_init
,
783 .debugfs_cleanup
= omap_debugfs_cleanup
,
785 .prime_handle_to_fd
= drm_gem_prime_handle_to_fd
,
786 .prime_fd_to_handle
= drm_gem_prime_fd_to_handle
,
787 .gem_prime_export
= omap_gem_prime_export
,
788 .gem_prime_import
= omap_gem_prime_import
,
789 .gem_init_object
= omap_gem_init_object
,
790 .gem_free_object
= omap_gem_free_object
,
791 .gem_vm_ops
= &omap_gem_vm_ops
,
792 .dumb_create
= omap_gem_dumb_create
,
793 .dumb_map_offset
= omap_gem_dumb_map_offset
,
794 .dumb_destroy
= omap_gem_dumb_destroy
,
796 .num_ioctls
= DRM_OMAP_NUM_IOCTLS
,
797 .fops
= &omapdriver_fops
,
801 .major
= DRIVER_MAJOR
,
802 .minor
= DRIVER_MINOR
,
803 .patchlevel
= DRIVER_PATCHLEVEL
,
806 static int pdev_suspend(struct platform_device
*pDevice
, pm_message_t state
)
812 static int pdev_resume(struct platform_device
*device
)
818 static void pdev_shutdown(struct platform_device
*device
)
823 static int pdev_probe(struct platform_device
*device
)
825 DBG("%s", device
->name
);
826 return drm_platform_init(&omap_drm_driver
, device
);
829 static int pdev_remove(struct platform_device
*device
)
832 drm_platform_exit(&omap_drm_driver
, device
);
834 platform_driver_unregister(&omap_dmm_driver
);
838 struct platform_driver pdev
= {
841 .owner
= THIS_MODULE
,
844 .remove
= pdev_remove
,
845 .suspend
= pdev_suspend
,
846 .resume
= pdev_resume
,
847 .shutdown
= pdev_shutdown
,
850 static int __init
omap_drm_init(void)
853 if (platform_driver_register(&omap_dmm_driver
)) {
854 /* we can continue on without DMM.. so not fatal */
855 dev_err(NULL
, "DMM registration failed\n");
857 return platform_driver_register(&pdev
);
860 static void __exit
omap_drm_fini(void)
863 platform_driver_unregister(&pdev
);
866 /* need late_initcall() so we load after dss_driver's are loaded */
867 late_initcall(omap_drm_init
);
868 module_exit(omap_drm_fini
);
870 MODULE_AUTHOR("Rob Clark <rob@ti.com>");
871 MODULE_DESCRIPTION("OMAP DRM Display Driver");
872 MODULE_ALIAS("platform:" DRIVER_NAME
);
873 MODULE_LICENSE("GPL v2");