Re: [PATCH 2/4] drm/bridge: lt8912b: set hdmi or dvi mode

[Adrien Grassein]

Le jeu. 22 sept. 2022 à 14:43, Philippe Schenker <dev@xxxxxxxxxxxx> a écrit :
>
> From: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
>
> 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: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
> Signed-off-by: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
Acked-by: Adrien Grassein <adrien.grassein@xxxxxxxxx>
> ---
>
>  drivers/gpu/drm/bridge/lontium-lt8912b.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c
> index 0fd3472e767c..6a4bb7422176 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c
> @@ -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;
>  }
> --
> 2.37.3
>