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@xxxxxxxxxxxxxx>
> ---
> 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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