From: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
[ Upstream commit 3d61fe5f59dd3e6f96fc0772156d257cb04dc656 ]
The drm_vblank_init() takes the total number of CRTCs as an argument,
but the rcar-du driver passes a bitmask of the CRTC indices. Fix it.
Fixes: 4bf8e1962f91 ("drm: Renesas R-Car Display Unit DRM driver")
Reported-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index 0386b454e221..6a9578159c2b 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -544,7 +544,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
* Initialize vertical blanking interrupts handling. Start with vblank
* disabled for all CRTCs.
*/
- ret = drm_vblank_init(dev, (1 << rcdu->num_crtcs) - 1);
+ ret = drm_vblank_init(dev, rcdu->num_crtcs);
if (ret < 0)
return ret;
--
2.20.1
