[PATCH v5 08/29] drm/omap: dsi: drop useless channel checks

[Sebastian Reichel]

Hi,

On Tue, Dec 08, 2020 at 02:28:34PM +0200, Tomi Valkeinen wrote:
> A DSI peripheral can have virtual channel ID of 0-3. This should be
> always the case, and there's no need in the driver to validate the
> channel.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---

Reviewed-by: Sebastian Reichel <sebastian.reichel at collabora.com>

-- Sebastian

>  drivers/gpu/drm/omapdrm/dss/dsi.c | 11 -----------
>  1 file changed, 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
> index 5e13478010db..c78ae99c8742 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> @@ -3902,9 +3902,6 @@ static int dsi_update_channel(struct omap_dss_device *dssdev, int channel)
>  	struct dsi_data *dsi = to_dsi_data(dssdev);
>  	int r;
>  
> -	if (channel > 3)
> -		return -EINVAL;
> -
>  	dsi_bus_lock(dsi);
>  
>  	if (!dsi->video_enabled) {
> @@ -5068,12 +5065,8 @@ static int omap_dsi_host_attach(struct mipi_dsi_host *host,
>  				struct mipi_dsi_device *client)
>  {
>  	struct dsi_data *dsi = host_to_omap(host);
> -	unsigned int channel = client->channel;
>  	int r;
>  
> -	if (channel > 3)
> -		return -EINVAL;
> -
>  	if (dsi->dsidev) {
>  		DSSERR("dsi client already attached\n");
>  		return -EBUSY;
> @@ -5123,10 +5116,6 @@ static int omap_dsi_host_detach(struct mipi_dsi_host *host,
>  				struct mipi_dsi_device *client)
>  {
>  	struct dsi_data *dsi = host_to_omap(host);
> -	unsigned int channel = client->channel;
> -
> -	if (channel > 3)
> -		return -EINVAL;
>  
>  	if (WARN_ON(dsi->dsidev != client))
>  		return -EINVAL;
> -- 
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
> 
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