dcdb167402
Allow platform devices without PCI resources to be DRM devices. [airlied: fixup warnings with dev pointers] Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
123 lines
3.4 KiB
C
123 lines
3.4 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 "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.
|
|
*/
|
|
|
|
int drm_get_platform_dev(struct platform_device *platdev,
|
|
struct drm_driver *driver)
|
|
{
|
|
struct drm_device *dev;
|
|
int ret;
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
dev->platformdev = platdev;
|
|
dev->dev = &platdev->dev;
|
|
|
|
ret = drm_fill_in_dev(dev, NULL, driver);
|
|
|
|
if (ret) {
|
|
printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
|
|
goto err_g1;
|
|
}
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
dev_set_drvdata(&platdev->dev, dev);
|
|
ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
|
|
if (ret)
|
|
goto err_g1;
|
|
}
|
|
|
|
ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY);
|
|
if (ret)
|
|
goto err_g2;
|
|
|
|
if (dev->driver->load) {
|
|
ret = dev->driver->load(dev, 0);
|
|
if (ret)
|
|
goto err_g3;
|
|
}
|
|
|
|
/* setup the grouping for the legacy output */
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
ret = drm_mode_group_init_legacy_group(dev,
|
|
&dev->primary->mode_group);
|
|
if (ret)
|
|
goto err_g3;
|
|
}
|
|
|
|
list_add_tail(&dev->driver_item, &driver->device_list);
|
|
|
|
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_g3:
|
|
drm_put_minor(&dev->primary);
|
|
err_g2:
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
drm_put_minor(&dev->control);
|
|
err_g1:
|
|
kfree(dev);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(drm_get_platform_dev);
|
|
|
|
/**
|
|
* Platform device initialization. Called via drm_init at module load time,
|
|
*
|
|
* \return zero on success or a negative number on failure.
|
|
*
|
|
* Initializes a drm_device structures,registering the
|
|
* stubs
|
|
*
|
|
* Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
|
|
* after the initialization for driver customization.
|
|
*/
|
|
|
|
int drm_platform_init(struct drm_driver *driver)
|
|
{
|
|
return drm_get_platform_dev(driver->platform_device, driver);
|
|
}
|