drm/meson: Fix CVBS VDAC disable

PD#147238: enable DRM driver on kernel 4.9
This commit fixes the VDAC disabling register write values.

Change-Id: I5534a15e52730ee2a5b54d1aa82bbe59c2e01b50
Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

diff --git a/drivers/gpu/drm/meson/meson_venc_cvbs.c b/drivers/gpu/drm/meson/meson_venc_cvbs.c
index c809c08..a2bcc70 100644 (file)
--- a/drivers/gpu/drm/meson/meson_venc_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_venc_cvbs.c
@@ -167,7 +167,7 @@ static void meson_venc_cvbs_encoder_disable(struct drm_encoder *encoder)
 
        /* Disable CVBS VDAC */
        regmap_write(priv->hhi, HHI_VDAC_CNTL0, 0);
-       regmap_write(priv->hhi, HHI_VDAC_CNTL1, 0);
+       regmap_write(priv->hhi, HHI_VDAC_CNTL1, 8);
 }
 
 static void meson_venc_cvbs_encoder_enable(struct drm_encoder *encoder)