Re: [PATCH v4 2/5] drm/meson: handle RGB101010 in format switches

From: Dmitry Baryshkov

Date: Sat Mar 21 2026 - 13:17:02 EST


On Sat, Mar 21, 2026 at 07:52:30AM +0000, Alexander Koskovich wrote:
> Add RGB101010 to the unsupported format cases to fix -Wswitch warnings
> introduced by the addition of the new pixel format.
>
> Signed-off-by: Alexander Koskovich <akoskovich@xxxxx>
> ---
> drivers/gpu/drm/meson/meson_dw_mipi_dsi.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c b/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c
> index 66c73c512b0e..59fc0083d318 100644
> --- a/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c
> +++ b/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c
> @@ -119,6 +119,7 @@ static int dw_mipi_dsi_phy_init(void *priv_data)
> dpi_data_format = DPI_COLOR_18BIT_CFG_2;
> venc_data_width = VENC_IN_COLOR_18B;
> break;
> + case MIPI_DSI_FMT_RGB101010:
> case MIPI_DSI_FMT_RGB666_PACKED:
> case MIPI_DSI_FMT_RGB565:

This would need to be changed again and again as we add more pixel
formats supported by the MIPI DSI panels. I think it would make more
sense to use 'default:' here instead of listing all of them here.

> return -EINVAL;
> @@ -232,6 +233,7 @@ static int meson_dw_mipi_dsi_host_attach(void *priv_data,
> break;
> case MIPI_DSI_FMT_RGB666:
> break;
> + case MIPI_DSI_FMT_RGB101010:
> case MIPI_DSI_FMT_RGB666_PACKED:
> case MIPI_DSI_FMT_RGB565:

And here

> dev_err(mipi_dsi->dev, "invalid pixel format %d\n", device->format);
>
> --
> 2.53.0
>
>

--
With best wishes
Dmitry