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drm: rcar-du: Fix vblank initialization

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[ Upstream commit 3d61fe5f59 ]

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: 4bf8e1962f ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Laurent Pinchart
2018-10-17 22:08:31 +03:00
committed by Greg Kroah-Hartman
parent 81bdcb375c
commit 23ad614cb5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/rcar-du/rcar_du_kms.c
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@@ -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;