diff mbox series

[1/1] drm/mediatek: Fix errors when reporting rotation capability

Message ID 20230918071011.18481-2-shawn.sung@mediatek.com
State New
Headers
Series Fix errors when reporting rotation capability |

Commit Message

Shawn Sung (宋孝謙) Sept. 18, 2023, 7:10 a.m. UTC 
  For CRTCs that doesn't support rotation should still return
DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip
doesn't support rotation, return the capability of the
hardware accordingly.

Fixes: df4444577118 ("drm/mediatek: Support 180 degree rotation")
Fixes: 84d805753983 ("drm/mediatek: Support reflect-y plane rotation")

Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_drv.h         | 1 +
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c         | 8 +-------
 drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 5 +++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c     | 1 +
 drivers/gpu/drm/mediatek/mtk_drm_plane.c        | 2 +-
 5 files changed, 9 insertions(+), 8 deletions(-)

--
2.18.0

Comments

AngeloGioacchino Del Regno Sept. 18, 2023, 8:58 a.m. UTC | #1 
Il 18/09/23 09:10, Hsiao Chien Sung ha scritto:
> For CRTCs that doesn't support rotation should still return
> DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip
> doesn't support rotation, return the capability of the
> hardware accordingly.
> 
> Fixes: df4444577118 ("drm/mediatek: Support 180 degree rotation")
> Fixes: 84d805753983 ("drm/mediatek: Support reflect-y plane rotation")
> 
> Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
CK Hu (胡俊光) Oct. 26, 2023, 1:53 a.m. UTC | #2 
Hi, Hsiao-chien:

On Mon, 2023-09-18 at 15:10 +0800, Hsiao Chien Sung wrote:
> For CRTCs that doesn't support rotation should still return
> DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip
> doesn't support rotation, return the capability of the
> hardware accordingly.
> 
> Fixes: df4444577118 ("drm/mediatek: Support 180 degree rotation")
> Fixes: 84d805753983 ("drm/mediatek: Support reflect-y plane
> rotation")
> 
> Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_disp_drv.h         | 1 +
>  drivers/gpu/drm/mediatek/mtk_disp_ovl.c         | 8 +-------
>  drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 5 +++++
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c     | 1 +
>  drivers/gpu/drm/mediatek/mtk_drm_plane.c        | 2 +-
>  5 files changed, 9 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 2254038519e1..f4c7dba8f73d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -120,6 +120,7 @@ void mtk_ovl_adaptor_register_vblank_cb(struct
> device *dev, void (*vblank_cb)(vo
>  void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev);
>  void mtk_ovl_adaptor_enable_vblank(struct device *dev);
>  void mtk_ovl_adaptor_disable_vblank(struct device *dev);
> +unsigned int mtk_ovl_adaptor_supported_rotations(struct device
> *dev);
>  void mtk_ovl_adaptor_start(struct device *dev);
>  void mtk_ovl_adaptor_stop(struct device *dev);
>  unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index 2bffe4245466..5fd1f6ae41f3 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -288,8 +288,7 @@ unsigned int mtk_ovl_layer_nr(struct device *dev)
> 
>  unsigned int mtk_ovl_supported_rotations(struct device *dev)
>  {
> -	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
> -	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
> +	return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X |
> DRM_MODE_REFLECT_Y;

If ovl enable reflect_x and reflect_y at the same time, it is rotate
180, right?

Regards,
CK

>  }
> 
>  int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
> @@ -302,11 +301,6 @@ int mtk_ovl_layer_check(struct device *dev,
> unsigned int idx,
>  					 DRM_MODE_ROTATE_0 |
>  					 DRM_MODE_REFLECT_X |
>  					 DRM_MODE_REFLECT_Y);
> -	rotation &= ~DRM_MODE_ROTATE_0;
> -
> -	/* We can only do reflection, not rotation */
> -	if ((rotation & DRM_MODE_ROTATE_MASK) != 0)
> -		return -EINVAL;
> 
>  	/*
>  	 * TODO: Rotating/reflecting YUV buffers is not supported at
> this time.
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index 6bf6367853fb..922db8df572d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -277,6 +277,11 @@ void mtk_ovl_adaptor_register_vblank_cb(struct
> device *dev, void (*vblank_cb)(vo
>  				     vblank_cb, vblank_cb_data);
>  }
> 
> +unsigned int mtk_ovl_adaptor_supported_rotations(struct device *dev)
> +{
> +	return DRM_MODE_ROTATE_0;
> +}
> +
>  void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev)
>  {
>  	struct mtk_disp_ovl_adaptor *ovl_adaptor =
> dev_get_drvdata(dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 771f4e173353..f7f972f0d46d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -412,6 +412,7 @@ static const struct mtk_ddp_comp_funcs
> ddp_ovl_adaptor = {
>  	.remove = mtk_ovl_adaptor_remove_comp,
>  	.get_formats = mtk_ovl_adaptor_get_formats,
>  	.get_num_formats = mtk_ovl_adaptor_get_num_formats,
> +	.supported_rotations = mtk_ovl_adaptor_supported_rotations,
>  };
> 
>  static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] =
> {
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> index db2f70ae060d..371de196d400 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -315,7 +315,7 @@ int mtk_plane_init(struct drm_device *dev, struct
> drm_plane *plane,
>  		return err;
>  	}
> 
> -	if (supported_rotations & ~DRM_MODE_ROTATE_0) {
> +	if (supported_rotations) {
>  		err = drm_plane_create_rotation_property(plane,
>  							 DRM_MODE_ROTAT
> E_0,
>  							 supported_rota
> tions);
> --
> 2.18.0
>
Shawn Sung (宋孝謙) Oct. 26, 2023, 8:27 a.m. UTC | #3 
Hi CK,

On Thu, 2023-10-26 at 01:53 +0000, CK Hu (胡俊光) wrote:
> Hi, Hsiao-chien:
> 
> On Mon, 2023-09-18 at 15:10 +0800, Hsiao Chien Sung wrote:
> > For CRTCs that doesn't support rotation should still return
> > DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip
> > doesn't support rotation, return the capability of the
> > hardware accordingly.
> > 
> > Fixes: df4444577118 ("drm/mediatek: Support 180 degree rotation")
> > Fixes: 84d805753983 ("drm/mediatek: Support reflect-y plane
> > rotation")
> > 
> > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_disp_drv.h         | 1 +
> >  drivers/gpu/drm/mediatek/mtk_disp_ovl.c         | 8 +-------
> >  drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 5 +++++
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c     | 1 +
> >  drivers/gpu/drm/mediatek/mtk_drm_plane.c        | 2 +-
> >  5 files changed, 9 insertions(+), 8 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > index 2254038519e1..f4c7dba8f73d 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > @@ -120,6 +120,7 @@ void mtk_ovl_adaptor_register_vblank_cb(struct
> > device *dev, void (*vblank_cb)(vo
> >  void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev);
> >  void mtk_ovl_adaptor_enable_vblank(struct device *dev);
> >  void mtk_ovl_adaptor_disable_vblank(struct device *dev);
> > +unsigned int mtk_ovl_adaptor_supported_rotations(struct device
> > *dev);
> >  void mtk_ovl_adaptor_start(struct device *dev);
> >  void mtk_ovl_adaptor_stop(struct device *dev);
> >  unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev);
> > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > index 2bffe4245466..5fd1f6ae41f3 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > @@ -288,8 +288,7 @@ unsigned int mtk_ovl_layer_nr(struct device
> > *dev)
> > 
> >  unsigned int mtk_ovl_supported_rotations(struct device *dev)
> >  {
> > -	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
> > -	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
> > +	return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X |
> > DRM_MODE_REFLECT_Y;
> 
> If ovl enable reflect_x and reflect_y at the same time, it is rotate
> 180, right?
> 
> Regards,
> CK

Yes, if the user do such an operation, the result is equal to 180
degrees rotation.

Regards,
Shawn
CK Hu (胡俊光) Oct. 26, 2023, 8:29 a.m. UTC | #4 
Hi, Hsiao-chien:

On Thu, 2023-10-26 at 08:27 +0000, Shawn Sung (宋孝謙) wrote:
> Hi CK,
> 
> On Thu, 2023-10-26 at 01:53 +0000, CK Hu (胡俊光) wrote:
> > Hi, Hsiao-chien:
> > 
> > On Mon, 2023-09-18 at 15:10 +0800, Hsiao Chien Sung wrote:
> > > For CRTCs that doesn't support rotation should still return
> > > DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip
> > > doesn't support rotation, return the capability of the
> > > hardware accordingly.
> > > 
> > > Fixes: df4444577118 ("drm/mediatek: Support 180 degree rotation")
> > > Fixes: 84d805753983 ("drm/mediatek: Support reflect-y plane
> > > rotation")
> > > 
> > > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
> > > ---
> > >  drivers/gpu/drm/mediatek/mtk_disp_drv.h         | 1 +
> > >  drivers/gpu/drm/mediatek/mtk_disp_ovl.c         | 8 +-------
> > >  drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 5 +++++
> > >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c     | 1 +
> > >  drivers/gpu/drm/mediatek/mtk_drm_plane.c        | 2 +-
> > >  5 files changed, 9 insertions(+), 8 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > index 2254038519e1..f4c7dba8f73d 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > @@ -120,6 +120,7 @@ void
> > > mtk_ovl_adaptor_register_vblank_cb(struct
> > > device *dev, void (*vblank_cb)(vo
> > >  void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev);
> > >  void mtk_ovl_adaptor_enable_vblank(struct device *dev);
> > >  void mtk_ovl_adaptor_disable_vblank(struct device *dev);
> > > +unsigned int mtk_ovl_adaptor_supported_rotations(struct device
> > > *dev);
> > >  void mtk_ovl_adaptor_start(struct device *dev);
> > >  void mtk_ovl_adaptor_stop(struct device *dev);
> > >  unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev);
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > index 2bffe4245466..5fd1f6ae41f3 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > @@ -288,8 +288,7 @@ unsigned int mtk_ovl_layer_nr(struct device
> > > *dev)
> > > 
> > >  unsigned int mtk_ovl_supported_rotations(struct device *dev)
> > >  {
> > > -	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
> > > -	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
> > > +	return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X |
> > > DRM_MODE_REFLECT_Y;
> > 
> > If ovl enable reflect_x and reflect_y at the same time, it is
> > rotate
> > 180, right?
> > 
> > Regards,
> > CK
> 
> Yes, if the user do such an operation, the result is equal to 180
> degrees rotation.

So ovl support rotate 180, why do you remove this capability?

> 
> Regards,
> Shawn
Shawn Sung (宋孝謙) Oct. 27, 2023, 1:30 a.m. UTC | #5 
Hi CK,

On Thu, 2023-10-26 at 08:29 +0000, CK Hu (胡俊光) wrote:
> Hi, Hsiao-chien:
> 
> On Thu, 2023-10-26 at 08:27 +0000, Shawn Sung (宋孝謙) wrote:
> > Hi CK,
> > 
> > On Thu, 2023-10-26 at 01:53 +0000, CK Hu (胡俊光) wrote:
> > > Hi, Hsiao-chien:
> > > 
> > > On Mon, 2023-09-18 at 15:10 +0800, Hsiao Chien Sung wrote:
> > > > For CRTCs that doesn't support rotation should still return
> > > > DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip
> > > > doesn't support rotation, return the capability of the
> > > > hardware accordingly.
> > > > 
> > > > Fixes: df4444577118 ("drm/mediatek: Support 180 degree
> > > > rotation")
> > > > Fixes: 84d805753983 ("drm/mediatek: Support reflect-y plane
> > > > rotation")
> > > > 
> > > > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
> > > > ---
> > > >  drivers/gpu/drm/mediatek/mtk_disp_drv.h         | 1 +
> > > >  drivers/gpu/drm/mediatek/mtk_disp_ovl.c         | 8 +-------
> > > >  drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 5 +++++
> > > >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c     | 1 +
> > > >  drivers/gpu/drm/mediatek/mtk_drm_plane.c        | 2 +-
> > > >  5 files changed, 9 insertions(+), 8 deletions(-)
> > > > 
> > > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > > b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > > index 2254038519e1..f4c7dba8f73d 100644
> > > > --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > > +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > > > @@ -120,6 +120,7 @@ void
> > > > mtk_ovl_adaptor_register_vblank_cb(struct
> > > > device *dev, void (*vblank_cb)(vo
> > > >  void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev);
> > > >  void mtk_ovl_adaptor_enable_vblank(struct device *dev);
> > > >  void mtk_ovl_adaptor_disable_vblank(struct device *dev);
> > > > +unsigned int mtk_ovl_adaptor_supported_rotations(struct device
> > > > *dev);
> > > >  void mtk_ovl_adaptor_start(struct device *dev);
> > > >  void mtk_ovl_adaptor_stop(struct device *dev);
> > > >  unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev);
> > > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > > b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > > index 2bffe4245466..5fd1f6ae41f3 100644
> > > > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > > @@ -288,8 +288,7 @@ unsigned int mtk_ovl_layer_nr(struct device
> > > > *dev)
> > > > 
> > > >  unsigned int mtk_ovl_supported_rotations(struct device *dev)
> > > >  {
> > > > -	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
> > > > -	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
> > > > +	return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X |
> > > > DRM_MODE_REFLECT_Y;
> > > 
> > > If ovl enable reflect_x and reflect_y at the same time, it is
> > > rotate
> > > 180, right?
> > > 
> > > Regards,
> > > CK
> > 
> > Yes, if the user do such an operation, the result is equal to 180
> > degrees rotation.
> 
> So ovl support rotate 180, why do you remove this capability?
> 

Thank you for checking.
Will run IGT test to verify again.

Best,
Shawn
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 2254038519e1..f4c7dba8f73d 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -120,6 +120,7 @@  void mtk_ovl_adaptor_register_vblank_cb(struct device *dev, void (*vblank_cb)(vo
 void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev);
 void mtk_ovl_adaptor_enable_vblank(struct device *dev);
 void mtk_ovl_adaptor_disable_vblank(struct device *dev);
+unsigned int mtk_ovl_adaptor_supported_rotations(struct device *dev);
 void mtk_ovl_adaptor_start(struct device *dev);
 void mtk_ovl_adaptor_stop(struct device *dev);
 unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 2bffe4245466..5fd1f6ae41f3 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -288,8 +288,7 @@  unsigned int mtk_ovl_layer_nr(struct device *dev)

 unsigned int mtk_ovl_supported_rotations(struct device *dev)
 {
-	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
-	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
+	return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
 }

 int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
@@ -302,11 +301,6 @@  int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
 					 DRM_MODE_ROTATE_0 |
 					 DRM_MODE_REFLECT_X |
 					 DRM_MODE_REFLECT_Y);
-	rotation &= ~DRM_MODE_ROTATE_0;
-
-	/* We can only do reflection, not rotation */
-	if ((rotation & DRM_MODE_ROTATE_MASK) != 0)
-		return -EINVAL;

 	/*
 	 * TODO: Rotating/reflecting YUV buffers is not supported at this time.
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
index 6bf6367853fb..922db8df572d 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
@@ -277,6 +277,11 @@  void mtk_ovl_adaptor_register_vblank_cb(struct device *dev, void (*vblank_cb)(vo
 				     vblank_cb, vblank_cb_data);
 }

+unsigned int mtk_ovl_adaptor_supported_rotations(struct device *dev)
+{
+	return DRM_MODE_ROTATE_0;
+}
+
 void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev)
 {
 	struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 771f4e173353..f7f972f0d46d 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -412,6 +412,7 @@  static const struct mtk_ddp_comp_funcs ddp_ovl_adaptor = {
 	.remove = mtk_ovl_adaptor_remove_comp,
 	.get_formats = mtk_ovl_adaptor_get_formats,
 	.get_num_formats = mtk_ovl_adaptor_get_num_formats,
+	.supported_rotations = mtk_ovl_adaptor_supported_rotations,
 };

 static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index db2f70ae060d..371de196d400 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -315,7 +315,7 @@  int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
 		return err;
 	}

-	if (supported_rotations & ~DRM_MODE_ROTATE_0) {
+	if (supported_rotations) {
 		err = drm_plane_create_rotation_property(plane,
 							 DRM_MODE_ROTATE_0,
 							 supported_rotations);