Re: [PATCH v5 01/23] drm/encoder: Add of_graph port to struct drm_encoder

[Sascha Hauer <s.hauer@pengutronix.de>]

David, Daniel,

I'll need a word from you regarding this patch. It's needed in patch
22/23 in this series.
vop2_crtc_atomic_enable() needs to control the mux which routes the
display output to the different encoders. Which encoder is used is
described in the of_graph port, so I need a way to identify the encoder
in the device tree.

Sascha

On Wed, Feb 09, 2022 at 10:53:28AM +0100, Sascha Hauer wrote:
> Add a device node to drm_encoder which corresponds with the port node
> in the DT description of the encoder. This allows drivers to find the
> of_graph link between a crtc and an encoder.
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  include/drm/drm_encoder.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/drm/drm_encoder.h b/include/drm/drm_encoder.h
> index 6e91a0280f31..3acd054b1eb3 100644
> --- a/include/drm/drm_encoder.h
> +++ b/include/drm/drm_encoder.h
> @@ -99,6 +99,8 @@ struct drm_encoder {
>  	struct drm_device *dev;
>  	struct list_head head;
>  
> +	struct device_node *port;
> +
>  	struct drm_mode_object base;
>  	char *name;
>  	/**
> -- 
> 2.30.2
> 
> 

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