On Sat Sep 27, 2025 at 3:04 AM CEST, Dmitry Baryshkov wrote:
> Make write_hdmi_infoframe() and clear_infoframe() callbacks
> return -EOPNOTSUPP for unsupported InfoFrames and make sure that
> atomic_check() callback doesn't allow unsupported InfoFrames to be
> enabled.
>
> Signed-off-by: Dmitry Baryshkov <[email protected]>
> ---
>  drivers/gpu/drm/rockchip/inno_hdmi.c | 46 
> +++++++++++++++++++++++++++---------
>  1 file changed, 35 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c 
> b/drivers/gpu/drm/rockchip/inno_hdmi.c
> index 
> f24827dc1421cf5e0c1be63a80da23d645cf3f24..dc2d68b9c87f7ae7b06ecbeaebc82b9689c1abfd
>  100644
> --- a/drivers/gpu/drm/rockchip/inno_hdmi.c
> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
> @@ -641,11 +641,8 @@ static int inno_hdmi_disable_frame(struct drm_connector 
> *connector,
>  {
>       struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
>  
> -     if (type != HDMI_INFOFRAME_TYPE_AVI) {
> -             drm_err(connector->dev,
> -                     "Unsupported infoframe type: %u\n", type);
> -             return 0;
> -     }
> +     if (type != HDMI_INFOFRAME_TYPE_AVI)
> +             return -EOPNOTSUPP;
>  
>       hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI);
>  
> @@ -659,11 +656,8 @@ static int inno_hdmi_upload_frame(struct drm_connector 
> *connector,
>       struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
>       ssize_t i;
>  
> -     if (type != HDMI_INFOFRAME_TYPE_AVI) {
> -             drm_err(connector->dev,
> -                     "Unsupported infoframe type: %u\n", type);
> -             return 0;
> -     }
> +     if (type != HDMI_INFOFRAME_TYPE_AVI)
> +             return -EOPNOTSUPP;
>  
>       inno_hdmi_disable_frame(connector, type);
>  
> @@ -673,6 +667,36 @@ static int inno_hdmi_upload_frame(struct drm_connector 
> *connector,
>       return 0;
>  }
>  
> +static int inno_hdmi_connector_atomic_check(struct drm_connector *connector,
> +                                         struct drm_atomic_state *state)
> +{
> +     struct drm_connector_state *conn_state =
> +             drm_atomic_get_new_connector_state(state, connector);
> +     int ret;
> +
> +     ret = drm_atomic_helper_connector_hdmi_check(connector, state);
> +     if (ret)
> +             return ret;
> +
> +     /* not supported by the driver */
> +     conn_state->hdmi.infoframes.spd.set = false;
> +
> +     /* FIXME: not supported by the driver */
> +     conn_state->hdmi.infoframes.hdmi.set = false;
> +
> +     /* should not happen, HDR support not enabled */
> +     if (drm_WARN_ON_ONCE(connector->dev,
> +                          connector->hdmi.infoframes.audio.set))
> +             return -EOPNOTSUPP;
> +
> +     /* should not happen, audio support not enabled */
> +     if (drm_WARN_ON_ONCE(connector->dev,
> +                          conn_state->hdmi.infoframes.hdr_drm.set))
> +             return -EOPNOTSUPP;

Looks like the comments are on the wrong line? Also in patch 7.

Cheers,
  Diederik

> +
> +     return 0;
> +}
> +
>  static const struct drm_connector_hdmi_funcs inno_hdmi_hdmi_connector_funcs 
> = {
>       .clear_infoframe        = inno_hdmi_disable_frame,
>       .write_infoframe        = inno_hdmi_upload_frame,
> @@ -1029,7 +1053,7 @@ static const struct drm_connector_funcs 
> inno_hdmi_connector_funcs = {
>  };
>  
>  static struct drm_connector_helper_funcs inno_hdmi_connector_helper_funcs = {
> -     .atomic_check = drm_atomic_helper_connector_hdmi_check,
> +     .atomic_check = inno_hdmi_connector_atomic_check,
>       .get_modes = inno_hdmi_connector_get_modes,
>       .mode_valid = inno_hdmi_connector_mode_valid,
>  };

Attachment: signature.asc
Description: PGP signature

Reply via email to