2 * Derived from drm_pci.c
4 * Copyright 2003 José Fonseca.
5 * Copyright 2003 Leif Delgass.
6 * Copyright (c) 2009, Code Aurora Forum.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
24 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 * \param platdev - Platform device struture
34 * \return zero on success or a negative number on failure.
36 * Attempt to gets inter module "drm" information. If we are first
37 * then register the character device and inter module information.
38 * Try and register, if we fail to register, backout previous work.
41 int drm_get_platform_dev(struct platform_device
*platdev
,
42 struct drm_driver
*driver
)
44 struct drm_device
*dev
;
49 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
53 dev
->platformdev
= platdev
;
54 dev
->dev
= &platdev
->dev
;
56 ret
= drm_fill_in_dev(dev
, NULL
, driver
);
59 printk(KERN_ERR
"DRM: Fill_in_dev failed.\n");
63 if (drm_core_check_feature(dev
, DRIVER_MODESET
)) {
64 dev_set_drvdata(&platdev
->dev
, dev
);
65 ret
= drm_get_minor(dev
, &dev
->control
, DRM_MINOR_CONTROL
);
70 ret
= drm_get_minor(dev
, &dev
->primary
, DRM_MINOR_LEGACY
);
74 if (dev
->driver
->load
) {
75 ret
= dev
->driver
->load(dev
, 0);
80 /* setup the grouping for the legacy output */
81 if (drm_core_check_feature(dev
, DRIVER_MODESET
)) {
82 ret
= drm_mode_group_init_legacy_group(dev
,
83 &dev
->primary
->mode_group
);
88 list_add_tail(&dev
->driver_item
, &driver
->device_list
);
90 DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
91 driver
->name
, driver
->major
, driver
->minor
, driver
->patchlevel
,
92 driver
->date
, dev
->primary
->index
);
97 drm_put_minor(&dev
->primary
);
99 if (drm_core_check_feature(dev
, DRIVER_MODESET
))
100 drm_put_minor(&dev
->control
);
105 EXPORT_SYMBOL(drm_get_platform_dev
);
108 * Platform device initialization. Called via drm_init at module load time,
110 * \return zero on success or a negative number on failure.
112 * Initializes a drm_device structures,registering the
115 * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
116 * after the initialization for driver customization.
119 int drm_platform_init(struct drm_driver
*driver
)
121 return drm_get_platform_dev(driver
->platform_device
, driver
);
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