[PATCH v4 63/80] drm/omap: dsi: drop useless channel checks

[Laurent Pinchart]

Hi Tomi,

Thank you for the patch.

On Tue, Nov 24, 2020 at 02:45:21PM +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>

> ---
>  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 63338324c564..fbf05097612f 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) {
> @@ -5063,12 +5060,8 @@ 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;
> @@ -5118,10 +5111,6 @@ 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;

-- 
Regards,

Laurent Pinchart