Unverified Commit 09f137c3 authored by Javier Martinez Canillas's avatar Javier Martinez Canillas
Browse files

drm: Provide platform module-init macro 



Provide a helper macro to register platform DRM drivers. The new
macro behaves like module_platform_driver() with an additional
test if DRM modesetting has been enabled.

Signed-off-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20211222082831.196562-7-javierm@redhat.com
parent 2075a734

include/drm/drm_module.h

+30 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#define DRM_MODULE_H



#include <linux/pci.h>

#include <linux/platform_device.h>



#include <drm/drm_drv.h>
@@ -92,4 +93,33 @@ drm_pci_unregister_driver_if_modeset(struct pci_driver *pci_drv, int modeset) 
	module_driver(__pci_drv, drm_pci_register_driver_if_modeset, \

		      drm_pci_unregister_driver_if_modeset, __modeset)



/*

 * Platform drivers

 */



static inline int __init

drm_platform_driver_register(struct platform_driver *platform_drv)

{

	if (drm_firmware_drivers_only())

		return -ENODEV;



	return platform_driver_register(platform_drv);

}



/**

 * drm_module_platform_driver - Register a DRM driver for platform devices

 * @__platform_drv: the platform driver structure

 *

 * Registers a DRM driver for devices on the platform bus. The helper

 * macro behaves like module_platform_driver() but tests the state of

 * drm_firmware_drivers_only(). For more complex module initialization,

 * use module_init() and module_exit() directly.

 *

 * Each module may only use this macro once. Calling it replaces

 * module_init() and module_exit().

 */

#define drm_module_platform_driver(__platform_drv) \

	module_driver(__platform_drv, drm_platform_driver_register, \

		      platform_driver_unregister)



#endif