[PATCH v2 2/4] drm/bridge: dw-hdmi: do not force "none" scan mode

[Jernej Skrabec]

From: Jonas Karlman <jonas at kwiboo.se>

Setting scan mode to "none" confuses some TVs like LG B8, which randomly
change overscan percentage over time. Digital outputs like HDMI and DVI,
handled by this controller, don't really need overscan, so we can always
set scan mode to underscan. Actually, this is exactly what
drm_hdmi_avi_infoframe_from_display_mode() already does, so we can just
remove offending line.

Reviewed-by: Neil Armstrong <narmstrong at baylibre.com>
Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
[updated commit message]
Signed-off-by: Jernej Skrabec <jernej.skrabec at siol.net>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 24965e53d351..de2c7ec887c8 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1654,8 +1654,6 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 			HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
 	}
 
-	frame.scan_mode = HDMI_SCAN_MODE_NONE;
-
 	/*
 	 * The Designware IP uses a different byte format from standard
 	 * AVI info frames, though generally the bits are in the correct
-- 
2.25.1