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Commit b53ac1ee authored by Pierre Moreau's avatar Pierre Moreau Committed by Ben Skeggs
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drm/nouveau/bl: Do not register interface if Apple GMUX detected 



The Apple GMUX is the one managing the backlight, so there is no need for
Nouveau to register its own backlight interface.

v2: Do not split information message on two lines as it prevents from grepping
    it, as pointed out by Lukas Wunner

v3: Add a missing end-of-line character to the printed message

Signed-off-by: default avatarPierre Moreau <pierre.morrow@free.fr>
Reviewed-by: default avatarLukas Wunner <lukas@wunner.de>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent db1a0ae2

drivers/gpu/drm/nouveau/nouveau_backlight.c

+6 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
 * Register locations derived from NVClock by Roderick Colenbrander

 */



#include <linux/apple-gmux.h>

#include <linux/backlight.h>

#include <linux/idr.h>
@@ -267,6 +268,11 @@ nouveau_backlight_init(struct drm_device *dev) 
	struct nvif_device *device = &drm->device;

	struct drm_connector *connector;



	if (apple_gmux_present()) {

		NV_INFO(drm, "Apple GMUX detected: not registering Nouveau backlight interface\n");

		return 0;

	}



	INIT_LIST_HEAD(&drm->bl_connectors);



	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {