From 3d61fe5f59dd3e6f96fc0772156d257cb04dc656 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 17 Oct 2018 22:08:31 +0300
Subject: drm: rcar-du: Fix vblank initialization
Git-commit: 3d61fe5f59dd3e6f96fc0772156d257cb04dc656
Patch-mainline: v5.0-rc1
References: bsc#1113722
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@ti.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -532,7 +532,7 @@ int rcar_du_modeset_init(struct rcar_du_
* 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;