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drm: rcar-du: Output HSYNC instead of CSYNC 

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>
This commit is contained in:
Laurent Pinchart 2014-12-09 00:40:59 +02:00
parent 1b30dbde85
commit f67e1e058b
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/rcar-du/rcar_du_crtc.c
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@ -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 */