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[07/15] drm: rcar-du: Output HSYNC instead of CSYNC

Message ID 1418254935-13536-8-git-send-email-laurent.pinchart+renesas@ideasonboard.com (mailing list archive)
State Not Applicable
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Laurent Pinchart Dec. 10, 2014, 11:42 p.m. UTC 
The DU outputs by default a composite sync signal (XOR of the horizontal
and vertical sync signals) on the HSYNC output pin. As this can confuse
devices and isn't needed by any of the supported encoders, configure the
HSYNC pin to output the horizontal sync signal.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index ce280bd390a9..25b762b58765 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -144,7 +144,7 @@  static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
 	/* Signal polarities */
 	value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : DSMR_VSL)
 	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : DSMR_HSL)
-	      | DSMR_DIPM_DE;
+	      | DSMR_DIPM_DE | DSMR_CSPM;
 	rcar_du_crtc_write(rcrtc, DSMR, value);
 
 	/* Display timings */