Re: [PATCH] imx-drm: imx-drm-core: Fix imx_drm_encoder_get_mux_id

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On Mon, Apr 07, 2014 at 10:22:36AM +0200, Philipp Zabel wrote:
> The decoder mux id is equal to the port id of the encoder's input port
> that is connected to the given crtc, not to the endpoint id (which is
> arbitrary and usually zero).
> 
> Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>

It fixes a color corruption issue on my dual display case (LVDS + HDMI).

Tested-by: Shawn Guo <shawn.guo@xxxxxxxxxxxxx>

Shawn

> ---
>  drivers/staging/imx-drm/imx-drm-core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
> index 4144a75..bc7f8bd 100644
> --- a/drivers/staging/imx-drm/imx-drm-core.c
> +++ b/drivers/staging/imx-drm/imx-drm-core.c
> @@ -517,7 +517,7 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
>  		of_node_put(port);
>  		if (port == imx_crtc->port) {
>  			ret = of_graph_parse_endpoint(ep, &endpoint);
> -			return ret ? ret : endpoint.id;
> +			return ret ? ret : endpoint.port;
>  		}
>  	} while (ep);
>  
> -- 
> 1.9.1
> 

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