linux-kernel - Re: [PATCH 11/30] drm/bridge/analogix/anx6345: Don't link encoder until after connector registration

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Date:   Fri, 19 Mar 2021 15:43:44 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Lyude Paul <lyude@...hat.com>
Cc:     intel-gfx@...ts.freedesktop.org,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        amd-gfx@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Sam Ravnborg <sam@...nborg.org>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Icenowy Zheng <icenowy@...c.io>, Torsten Duwe <duwe@....de>,
        Joe Perches <joe@...ches.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 11/30] drm/bridge/analogix/anx6345: Don't link encoder
 until after connector registration

Hey Lyude,

Thanks for the patch, it looks good to me.

Reviewed-by: Robert Foss <robert.foss@...aro.org>

On Fri, 19 Feb 2021 at 22:58, Lyude Paul <lyude@...hat.com> wrote:
>
> Another case of linking an encoder to a connector after the connector's
> been registered. The proper place to do this is before connector
> registration, so let's fix that.
>
> Signed-off-by: Lyude Paul <lyude@...hat.com>
> ---
>  drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> index 8e016ba7c54a..6258f16da0e8 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> @@ -556,12 +556,6 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge,
>         drm_connector_helper_add(&anx6345->connector,
>                                  &anx6345_connector_helper_funcs);
>
> -       err = drm_connector_register(&anx6345->connector);
> -       if (err) {
> -               DRM_ERROR("Failed to register connector: %d\n", err);
> -               return err;
> -       }
> -
>         anx6345->connector.polled = DRM_CONNECTOR_POLL_HPD;
>
>         err = drm_connector_attach_encoder(&anx6345->connector,
> @@ -571,6 +565,12 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge,
>                 return err;
>         }
>
> +       err = drm_connector_register(&anx6345->connector);
> +       if (err) {
> +               DRM_ERROR("Failed to register connector: %d\n", err);
> +               return err;
> +       }
> +
>         return 0;
>  }
>
> --
> 2.29.2
>