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drm/bridge: lt9611: fix programming of video modes

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[ Upstream commit ad188aa47edaa033a270e1a3efae43836ff47569 ]

Program the upper part of the hfront_porch into the proper register.

Fixes: 23278bf54a ("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>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118081658.2198520-5-dmitry.baryshkov@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dmitry Baryshkov
2023-01-18 10:16:49 +02:00
committed by Greg Kroah-Hartman
parent bffd007802
commit aa37ec52c1
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/bridge/lontium-lt9611.c
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@@ -185,7 +185,8 @@ 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));
}