92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
|
/*
|
||
|
|
* Derived from drm_pci.c
|
||
|
|
*
|
||
|
|
* Copyright 2003 José Fonseca.
|
||
|
|
* Copyright 2003 Leif Delgass.
|
||
|
|
* Copyright (c) 2009, Code Aurora Forum.
|
||
|
|
* All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
* copy of this software and associated documentation files (the "Software"),
|
||
|
|
* to deal in the Software without restriction, including without limitation
|
||
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||
|
|
* Software is furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice (including the next
|
||
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
||
|
|
* Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/export.h>
|
||
|
|
#include <drm/drmP.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Register.
|
||
|
|
*
|
||
|
|
* \param platdev - Platform device struture
|
||
|
|
* \return zero on success or a negative number on failure.
|
||
|
|
*
|
||
|
|
* Attempt to gets inter module "drm" information. If we are first
|
||
|
|
* then register the character device and inter module information.
|
||
|
|
* Try and register, if we fail to register, backout previous work.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int drm_get_platform_dev(struct platform_device *platdev,
|
||
|
|
struct drm_driver *driver)
|
||
|
|
{
|
||
|
|
struct drm_device *dev;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
DRM_DEBUG("\n");
|
||
|
|
|
||
|
|
dev = drm_dev_alloc(driver, &platdev->dev);
|
||
|
|
if (IS_ERR(dev))
|
||
|
|
return PTR_ERR(dev);
|
||
|
|
|
||
|
|
dev->platformdev = platdev;
|
||
|
|
|
||
|
|
ret = drm_dev_register(dev, 0);
|
||
|
|
if (ret)
|
||
|
|
goto err_free;
|
||
|
|
|
||
|
|
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
|
||
|
|
driver->name, driver->major, driver->minor, driver->patchlevel,
|
||
|
|
driver->date, dev->primary->index);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_free:
|
||
|
|
drm_dev_unref(dev);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* drm_platform_init - Register a platform device with the DRM subsystem
|
||
|
|
* @driver: DRM device driver
|
||
|
|
* @platform_device: platform device to register
|
||
|
|
*
|
||
|
|
* Registers the specified DRM device driver and platform device with the DRM
|
||
|
|
* subsystem, initializing a drm_device structure and calling the driver's
|
||
|
|
* .load() function.
|
||
|
|
*
|
||
|
|
* NOTE: This function is deprecated, please use drm_dev_alloc() and
|
||
|
|
* drm_dev_register() instead and remove your ->load() callback.
|
||
|
|
*
|
||
|
|
* Return: 0 on success or a negative error code on failure.
|
||
|
|
*/
|
||
|
|
int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device)
|
||
|
|
{
|
||
|
|
DRM_DEBUG("\n");
|
||
|
|
|
||
|
|
return drm_get_platform_dev(platform_device, driver);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(drm_platform_init);
|