Commit 6dd1de12 authored by Philippe Schenker's avatar Philippe Schenker Committed by Neil Armstrong
Browse files

drm/bridge: lt8912b: set hdmi or dvi mode 



The Lontium LT8912 does have a setting for DVI or HDMI. This patch reads
from EDID what the display needs and sets it accordingly.

Fixes: 30e2ae94 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: default avatarPhilippe Schenker <philippe.schenker@toradex.com>
Acked-by: default avatarAdrien Grassein <adrien.grassein@gmail.com>
Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220922124306.34729-3-dev@pschenker.ch
parent da73a94f

drivers/gpu/drm/bridge/lontium-lt8912b.c

+2 −0
Original line number Diff line number Diff line
@@ -323,6 +323,8 @@ static int lt8912_video_setup(struct lt8912 *lt) 
				  vsync_activehigh ? BIT(0) : 0);

	ret |= regmap_update_bits(lt->regmap[I2C_MAIN], 0xab, BIT(1),

				  hsync_activehigh ? BIT(1) : 0);

	ret |= regmap_update_bits(lt->regmap[I2C_MAIN], 0xb2, BIT(0),

				  lt->connector.display_info.is_hdmi ? BIT(0) : 0);



	return ret;

}