diff options
| author | Philippe Schenker <philippe.schenker@toradex.com> | 2022-09-19 11:05:29 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2022-09-22 20:13:31 +0000 |
| commit | 103bfd583463677952c651d6468ec2b671d3e1e4 (patch) | |
| tree | e0c0d6fb3a6515382d5fa7db08968985067a59e9 | |
| parent | 5ad2146391f23cf7a35a9f72234cdf4a44c551bb (diff) | |
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.
Upstream-Status: Submitted [https://lore.kernel.org/all/20220922124306.34729-3-dev@pschenker.ch/]
Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt8912b.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index 0fae72d45040..6e04d51b4636 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -321,6 +321,8 @@ 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; } |