Re: [PATCH] drm/doc: add warning about connector_type_id stability

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On Mon, 17 Jul 2023 13:13:09 +0000
Simon Ser <contact@xxxxxxxxxxx> wrote:

> Mention that the connector_type_id is not stable: it depends on
> driver and device probe order.
> 
> Signed-off-by: Simon Ser <contact@xxxxxxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Cc: Pekka Paalanen <pekka.paalanen@xxxxxxxxxxxxx>
> ---
>  include/uapi/drm/drm_mode.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
> index 92d96a2b6763..ea1b639bcb28 100644
> --- a/include/uapi/drm/drm_mode.h
> +++ b/include/uapi/drm/drm_mode.h
> @@ -488,6 +488,9 @@ struct drm_mode_get_connector {
>  	 * This is not an object ID. This is a per-type connector number. Each
>  	 * (type, type_id) combination is unique across all connectors of a DRM
>  	 * device.
> +	 *
> +	 * The (type, type_id) combination is not a stable identifier: the
> +	 * type_id can change depending on the driver probe order.
>  	 */
>  	__u32 connector_type_id;
>  

Acked-by: Pekka Paalanen <pekka.paalanen@xxxxxxxxxxxxx>


Thanks,
pq



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