diff mbox series

[04/13] drm/bridge: lt9611: fix programming of video modes

Message ID 20230118081658.2198520-5-dmitry.baryshkov@linaro.org
State Accepted
Commit ad188aa47edaa033a270e1a3efae43836ff47569
Headers show
Series drm/bridge: lt9611: several fixes and improvements | expand

Commit Message

Dmitry Baryshkov Jan. 18, 2023, 8:16 a.m. UTC 
Program the upper part of the hfront_porch into the proper register.

Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/bridge/lontium-lt9611.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
index deb503ca956a..f377052a45a4 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
@@ -187,7 +187,8 @@  static void lt9611_mipi_video_setup(struct lt9611 *lt9611,
 
 	regmap_write(lt9611->regmap, 0x8319, (u8)(hfront_porch % 256));
 
-	regmap_write(lt9611->regmap, 0x831a, (u8)(hsync_porch / 256));
+	regmap_write(lt9611->regmap, 0x831a, (u8)(hsync_porch / 256) |
+						((hfront_porch / 256) << 4));
 	regmap_write(lt9611->regmap, 0x831b, (u8)(hsync_porch % 256));
 }