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Commit 327c225b authored by Thomas Hellstrom's avatar Thomas Hellstrom Committed by Dave Airlie
Browse files

drm: Enable drm drivers to add drm sysfs devices. 



Export utility functions for drivers to add specialized devices in the
sysfs drm class subdirectory.

Initially this will be needed form TTM to add a virtual device that
handles power management.

Signed-off-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent a0724fcf

drivers/gpu/drm/drm_sysfs.c

+25 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/kdev_t.h>

#include <linux/err.h>



#include "drm_sysfs.h"

#include "drm_core.h"

#include "drmP.h"
@@ -515,3 +516,27 @@ void drm_sysfs_device_remove(struct drm_minor *minor) 
{

	device_unregister(&minor->kdev);

}





/**

 * drm_class_device_register - Register a struct device in the drm class.

 *

 * @dev: pointer to struct device to register.

 *

 * @dev should have all relevant members pre-filled with the exception

 * of the class member. In particular, the device_type member must

 * be set.

 */



int drm_class_device_register(struct device *dev)

{

	dev->class = drm_class;

	return device_register(dev);

}

EXPORT_SYMBOL_GPL(drm_class_device_register);



void drm_class_device_unregister(struct device *dev)

{

	return device_unregister(dev);

}

EXPORT_SYMBOL_GPL(drm_class_device_unregister);

include/drm/drm_sysfs.h

0 → 100644
+12 −0
Original line number Diff line number Diff line 
#ifndef _DRM_SYSFS_H_

#define _DRM_SYSFS_H_



/**

 * This minimalistic include file is intended for users (read TTM) that

 * don't want to include the full drmP.h file.

 */



extern int drm_class_device_register(struct device *dev);

extern void drm_class_device_unregister(struct device *dev);



#endif