drm/nouveau/kms: switch hpd_lock from mutex to spinlock

There's no good reason for this to be a mutex, and once the layers of
workqueues have been untangled, nouveau_connector_hpd() can be called
from IRQ context and won't be able to take a mutex.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 84df5ddae4d0..1a92c980cb73 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -201,7 +201,7 @@ struct nouveau_drm {
 	struct nvbios vbios;
 	struct nouveau_display *display;
 	struct work_struct hpd_work;
-	struct mutex hpd_lock;
+	spinlock_t hpd_lock;
 	u32 hpd_pending;
 	struct work_struct fbcon_work;
 	int fbcon_new_state;