Re: [PATCH v7 8/8] drm: Config orientation property if panel provides it

From: Doug Anderson
Date: Fri Jun 10 2022 - 15:55:55 EST


Hi,

On Thu, Jun 9, 2022 at 12:28 AM Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> wrote:
>
> Panel orientation property should be set before drm_dev_register().
> Some drm driver calls drm_dev_register() in .bind(). However, most
> panels sets orientation property relatively late, mostly in .get_modes()
> callback, since this is when they are able to get the connector and
> binds the orientation property to it, though the value should be known
> when the panel is probed.
>
> In drm_bridge_connector_init(), if a bridge is a panel bridge, use it to
> set the connector's panel orientation property.
>
> Suggested-by: Doug Anderson <dianders@xxxxxxxxxxxx>
> Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>
> ---
> v6->v7: remove redundant check and fix config issue.
> ---
> drivers/gpu/drm/bridge/panel.c | 34 ++++++++++++++++++++++++++
> drivers/gpu/drm/drm_bridge_connector.c | 8 +++++-
> include/drm/drm_bridge.h | 14 +++++++++++
> 3 files changed, 55 insertions(+), 1 deletion(-)

Reviewed-by: Doug Anderson <dianders@xxxxxxxxxxxx>