Hi, Jason:

On Mon, 2023-10-23 at 12:45 +0800, Jason-JH.Lin wrote:
> Add is_sec flag to identify current mtk_drm_plane is secure.
> Add mtk_plane_is_sec_fb() to check current drm_framebuffer is secure.
> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_plane.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.h
> b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
> index 99aff7da0831..fe60e20a6e1c 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
> @@ -33,6 +33,7 @@ struct mtk_plane_pending_state {
>  boolasync_dirty;
>  boolasync_config;
>  enum drm_color_encodingcolor_encoding;
> +boolis_sec;

Where do you set this flag?

Regards,
CK

>  };
>  
>  struct mtk_plane_state {
> @@ -46,6 +47,7 @@ to_mtk_plane_state(struct drm_plane_state *state)
>  return container_of(state, struct mtk_plane_state, base);
>  }
>  
> +bool mtk_plane_fb_is_secure(struct drm_framebuffer *fb);
>  int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
>     unsigned long possible_crtcs, enum drm_plane_type
> type,
>     unsigned int supported_rotations, const u32
> *formats,

************* MEDIATEK Confidentiality Notice ********************
The information contained in this e-mail message (including any 
attachments) may be confidential, proprietary, privileged, or otherwise
exempt from disclosure under applicable laws. It is intended to be 
conveyed only to the designated recipient(s). Any use, dissemination, 
distribution, printing, retaining or copying of this e-mail (including its 
attachments) by unintended recipient(s) is strictly prohibited and may 
be unlawful. If you are not an intended recipient of this e-mail, or believe 
that you have received this e-mail in error, please notify the sender 
immediately (by replying to this e-mail), delete any and all copies of 
this e-mail (including any attachments) from your system, and do not
disclose the content of this e-mail to any other person. Thank you!