[PATCH] drm: panel: Fix bus format for OrtusTech COM43H4M85ULC panel

Sam Ravnborg sam at ravnborg.org
Thu Aug 13 19:18:44 UTC 2020


Hi Laurent.

On Thu, Aug 13, 2020 at 01:02:44AM +0300, Laurent Pinchart wrote:
> The OrtusTech COM43H4M85ULC panel is a 18-bit RGB panel, set the bus
> format to MEDIA_BUS_FMT_RGB666_1X18.
> 
> Fixes: 725c9d40f3fe ("drm/panel: Add support for OrtusTech COM43H4M85ULC panel")
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>  drivers/gpu/drm/panel/panel-simple.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index ef8df838fe14..ef04fd75babd 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -3018,7 +3018,7 @@ static const struct panel_desc ortustech_com43h4m85ulc = {
>  		.width = 56,
>  		.height = 93,
>  	},
> -	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> +	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
>  	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
>  	.connector_type = DRM_MODE_CONNECTOR_DPI,
>  };

So basically we say that this panel is bpc=8 but connected so we only
utilise 6 bits per color - seems like a waste but may be good enough.
There are other panels that is connected in the same way.

Applied.

	Sam


> -- 
> Regards,
> 
> Laurent Pinchart


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