Re: [PATCH 5/5] drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c

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Hi Ville,

Thank you for the patch.

On Wednesday, 1 November 2017 20:29:20 EET Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> drm_plane_helper_check_update() isn't a transitional helper, so let's
> rename it to drm_atomic_helper_check_plane_state() and move it into
> drm_atomic_helper.c.
> 
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> Suggested-by: Daniel Vetter <daniel@xxxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

I would move this patch before 4/5 to make it easier to revert 4/5 (for the 
reason explaining as a reply to that patch).

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/arm/hdlcd_crtc.c            |   8 +--
>  drivers/gpu/drm/arm/malidp_planes.c         |   4 +-
>  drivers/gpu/drm/drm_atomic_helper.c         |  95 +++++++++++++++++++++++++
>  drivers/gpu/drm/drm_plane_helper.c          | 103 +-----------------------
>  drivers/gpu/drm/drm_simple_kms_helper.c     |   9 +--
>  drivers/gpu/drm/i915/intel_display.c        |  22 +++---
>  drivers/gpu/drm/imx/ipuv3-plane.c           |   8 +--
>  drivers/gpu/drm/mediatek/mtk_drm_plane.c    |   8 +--
>  drivers/gpu/drm/meson/meson_plane.c         |   8 +--
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c   |   5 +-
>  drivers/gpu/drm/nouveau/nv50_display.c      |  20 +++---
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.c |   6 +-
>  drivers/gpu/drm/tegra/dc.c                  |   4 +-
>  drivers/gpu/drm/vmwgfx/vmwgfx_kms.c         |   8 +--
>  drivers/gpu/drm/zte/zx_plane.c              |  15 ++--
>  include/drm/drm_atomic_helper.h             |   7 ++
>  include/drm/drm_plane_helper.h              |   6 --
>  17 files changed, 170 insertions(+), 166 deletions(-)
> 
> diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c
> b/drivers/gpu/drm/arm/hdlcd_crtc.c index 14721723fa8a..63511a3bbf6c 100644
> --- a/drivers/gpu/drm/arm/hdlcd_crtc.c
> +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
> @@ -252,10 +252,10 @@ static int hdlcd_plane_atomic_check(struct drm_plane
> *plane, clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> 
> -	return drm_plane_helper_check_state(state, crtc_state, &clip,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    false, true);
> +	return drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   false, true);
>  }
> 
>  static void hdlcd_plane_atomic_update(struct drm_plane *plane,
> diff --git a/drivers/gpu/drm/arm/malidp_planes.c
> b/drivers/gpu/drm/arm/malidp_planes.c index 492d99dd55d4..72a07950167e
> 100644
> --- a/drivers/gpu/drm/arm/malidp_planes.c
> +++ b/drivers/gpu/drm/arm/malidp_planes.c
> @@ -150,8 +150,8 @@ static int malidp_se_check_scaling(struct malidp_plane
> *mp,
> 
>  	clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> -	ret = drm_plane_helper_check_state(state, crtc_state, &clip,
> -					   0, INT_MAX, true, true);
> +	ret = drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						  0, INT_MAX, true, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c
> b/drivers/gpu/drm/drm_atomic_helper.c index 71d712f1b56a..7595ad8ad2f3
> 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -696,6 +696,101 @@ drm_atomic_helper_check_modeset(struct drm_device
> *dev, EXPORT_SYMBOL(drm_atomic_helper_check_modeset);
> 
>  /**
> + * drm_atomic_helper_check_plane_state() - Check plane state for validity
> + * @plane_state: plane state to check
> + * @crtc_state: crtc state to check
> + * @clip: integer clipping coordinates
> + * @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point
> + * @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point
> + * @can_position: is it legal to position the plane such that it
> + *                doesn't cover the entire crtc?  This will generally
> + *                only be false for primary planes.
> + * @can_update_disabled: can the plane be updated while the crtc
> + *                       is disabled?
> + *
> + * Checks that a desired plane update is valid, and updates various
> + * bits of derived state (clipped coordinates etc.). Drivers that provide
> + * their own plane handling rather than helper-provided implementations may
> + * still wish to call this function to avoid duplication of error checking
> + * code.
> + *
> + * RETURNS:
> + * Zero if update appears valid, error code on failure
> + */
> +int drm_atomic_helper_check_plane_state(struct drm_plane_state
> *plane_state, +					const struct drm_crtc_state *crtc_state,
> +					const struct drm_rect *clip,
> +					int min_scale,
> +					int max_scale,
> +					bool can_position,
> +					bool can_update_disabled)
> +{
> +	struct drm_framebuffer *fb = plane_state->fb;
> +	struct drm_rect *src = &plane_state->src;
> +	struct drm_rect *dst = &plane_state->dst;
> +	unsigned int rotation = plane_state->rotation;
> +	int hscale, vscale;
> +
> +	WARN_ON(!crtc_state != !plane_state->crtc);
> +	WARN_ON(crtc_state && crtc_state->crtc != plane_state->crtc);
> +
> +	*src = drm_plane_state_src(plane_state);
> +	*dst = drm_plane_state_dest(plane_state);
> +
> +	if (!fb) {
> +		plane_state->visible = false;
> +		return 0;
> +	}
> +
> +	/* crtc should only be NULL when disabling (i.e., !fb) */
> +	if (WARN_ON(!plane_state->crtc)) {
> +		plane_state->visible = false;
> +		return 0;
> +	}
> +
> +	if (!crtc_state->enable && !can_update_disabled) {
> +		DRM_DEBUG_KMS("Cannot update plane of a disabled CRTC.\n");
> +		return -EINVAL;
> +	}
> +
> +	drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation);
> +
> +	/* Check scaling */
> +	hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
> +	vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
> +	if (hscale < 0 || vscale < 0) {
> +		DRM_DEBUG_KMS("Invalid scaling of plane\n");
> +		drm_rect_debug_print("src: ", &plane_state->src, true);
> +		drm_rect_debug_print("dst: ", &plane_state->dst, false);
> +		return -ERANGE;
> +	}
> +
> +	plane_state->visible = drm_rect_clip_scaled(src, dst, clip, hscale,
> vscale); +
> +	drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation);
> +
> +	if (!plane_state->visible)
> +		/*
> +		 * Plane isn't visible; some drivers can handle this
> +		 * so we just return success here.  Drivers that can't
> +		 * (including those that use the primary plane helper's
> +		 * update function) will return an error from their
> +		 * update_plane handler.
> +		 */
> +		return 0;
> +
> +	if (!can_position && !drm_rect_equals(dst, clip)) {
> +		DRM_DEBUG_KMS("Plane must cover entire CRTC\n");
> +		drm_rect_debug_print("dst: ", dst, false);
> +		drm_rect_debug_print("clip: ", clip, false);
> +		return -EINVAL;
> +	}
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL(drm_atomic_helper_check_plane_state);
> +
> +/**
>   * drm_atomic_helper_check_planes - validate state object for planes
> changes * @dev: DRM device
>   * @state: the driver state object
> diff --git a/drivers/gpu/drm/drm_plane_helper.c
> b/drivers/gpu/drm/drm_plane_helper.c index adb8d94484f2..f1be8cd4e387
> 100644
> --- a/drivers/gpu/drm/drm_plane_helper.c
> +++ b/drivers/gpu/drm/drm_plane_helper.c
> @@ -100,101 +100,6 @@ static int get_connectors_for_crtc(struct drm_crtc
> *crtc, }
> 
>  /**
> - * drm_plane_helper_check_state() - Check plane state for validity
> - * @plane_state: plane state to check
> - * @crtc_state: crtc state to check
> - * @clip: integer clipping coordinates
> - * @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point
> - * @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point
> - * @can_position: is it legal to position the plane such that it
> - *                doesn't cover the entire crtc?  This will generally
> - *                only be false for primary planes.
> - * @can_update_disabled: can the plane be updated while the crtc
> - *                       is disabled?
> - *
> - * Checks that a desired plane update is valid, and updates various
> - * bits of derived state (clipped coordinates etc.). Drivers that provide
> - * their own plane handling rather than helper-provided implementations may
> - * still wish to call this function to avoid duplication of error checking
> - * code.
> - *
> - * RETURNS:
> - * Zero if update appears valid, error code on failure
> - */
> -int drm_plane_helper_check_state(struct drm_plane_state *plane_state,
> -				 const struct drm_crtc_state *crtc_state,
> -				 const struct drm_rect *clip,
> -				 int min_scale,
> -				 int max_scale,
> -				 bool can_position,
> -				 bool can_update_disabled)
> -{
> -	struct drm_framebuffer *fb = plane_state->fb;
> -	struct drm_rect *src = &plane_state->src;
> -	struct drm_rect *dst = &plane_state->dst;
> -	unsigned int rotation = plane_state->rotation;
> -	int hscale, vscale;
> -
> -	WARN_ON(!crtc_state != !plane_state->crtc);
> -	WARN_ON(crtc_state && crtc_state->crtc != plane_state->crtc);
> -
> -	*src = drm_plane_state_src(plane_state);
> -	*dst = drm_plane_state_dest(plane_state);
> -
> -	if (!fb) {
> -		plane_state->visible = false;
> -		return 0;
> -	}
> -
> -	/* crtc should only be NULL when disabling (i.e., !fb) */
> -	if (WARN_ON(!plane_state->crtc)) {
> -		plane_state->visible = false;
> -		return 0;
> -	}
> -
> -	if (!crtc_state->enable && !can_update_disabled) {
> -		DRM_DEBUG_KMS("Cannot update plane of a disabled CRTC.\n");
> -		return -EINVAL;
> -	}
> -
> -	drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation);
> -
> -	/* Check scaling */
> -	hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
> -	vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
> -	if (hscale < 0 || vscale < 0) {
> -		DRM_DEBUG_KMS("Invalid scaling of plane\n");
> -		drm_rect_debug_print("src: ", &plane_state->src, true);
> -		drm_rect_debug_print("dst: ", &plane_state->dst, false);
> -		return -ERANGE;
> -	}
> -
> -	plane_state->visible = drm_rect_clip_scaled(src, dst, clip, hscale,
> vscale); -
> -	drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation);
> -
> -	if (!plane_state->visible)
> -		/*
> -		 * Plane isn't visible; some drivers can handle this
> -		 * so we just return success here.  Drivers that can't
> -		 * (including those that use the primary plane helper's
> -		 * update function) will return an error from their
> -		 * update_plane handler.
> -		 */
> -		return 0;
> -
> -	if (!can_position && !drm_rect_equals(dst, clip)) {
> -		DRM_DEBUG_KMS("Plane must cover entire CRTC\n");
> -		drm_rect_debug_print("dst: ", dst, false);
> -		drm_rect_debug_print("clip: ", clip, false);
> -		return -EINVAL;
> -	}
> -
> -	return 0;
> -}
> -EXPORT_SYMBOL(drm_plane_helper_check_state);
> -
> -/**
>   * drm_plane_helper_check_update() - Check plane update for validity
>   * @plane: plane object to update
>   * @crtc: owning CRTC of owning plane
> @@ -255,10 +160,10 @@ int drm_plane_helper_check_update(struct drm_plane
> *plane, };
>  	int ret;
> 
> -	ret = drm_plane_helper_check_state(&plane_state, &crtc_state, clip,
> -					   min_scale, max_scale,
> -					   can_position,
> -					   can_update_disabled);
> +	ret = drm_atomic_helper_check_plane_state(&plane_state, &crtc_state,
> +						  clip, min_scale, max_scale,
> +						  can_position,
> +						  can_update_disabled);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c
> b/drivers/gpu/drm/drm_simple_kms_helper.c index d428c805025c..9f3b1c94802b
> 100644
> --- a/drivers/gpu/drm/drm_simple_kms_helper.c
> +++ b/drivers/gpu/drm/drm_simple_kms_helper.c
> @@ -103,10 +103,11 @@ static int drm_simple_kms_plane_atomic_check(struct
> drm_plane *plane, clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> 
> -	ret = drm_plane_helper_check_state(plane_state, crtc_state, &clip,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   false, true);
> +	ret = drm_atomic_helper_check_plane_state(plane_state, crtc_state,
> +						  &clip,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  false, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c index 4a459726b36b..e0ff599d2090
> 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -9316,12 +9316,12 @@ static int intel_check_cursor(struct
> intel_crtc_state *crtc_state, u32 offset;
>  	int ret;
> 
> -	ret = drm_plane_helper_check_state(&plane_state->base,
> -					   &crtc_state->base,
> -					   &plane_state->clip,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   true, true);
> +	ret = drm_atomic_helper_check_plane_state(&plane_state->base,
> +						  &crtc_state->base,
> +						  &plane_state->clip,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  true, true);
>  	if (ret)
>  		return ret;
> 
> @@ -12808,11 +12808,11 @@ intel_check_primary_plane(struct intel_plane
> *plane, can_position = true;
>  	}
> 
> -	ret = drm_plane_helper_check_state(&state->base,
> -					   &crtc_state->base,
> -					   &state->clip,
> -					   min_scale, max_scale,
> -					   can_position, true);
> +	ret = drm_atomic_helper_check_plane_state(&state->base,
> +						  &crtc_state->base,
> +						  &state->clip,
> +						  min_scale, max_scale,
> +						  can_position, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c
> b/drivers/gpu/drm/imx/ipuv3-plane.c index 51b23ac175e3..5a67daedcf4d 100644
> --- a/drivers/gpu/drm/imx/ipuv3-plane.c
> +++ b/drivers/gpu/drm/imx/ipuv3-plane.c
> @@ -342,10 +342,10 @@ static int ipu_plane_atomic_check(struct drm_plane
> *plane, clip.y1 = 0;
>  	clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> -	ret = drm_plane_helper_check_state(state, crtc_state, &clip,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   can_position, true);
> +	ret = drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  can_position, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> b/drivers/gpu/drm/mediatek/mtk_drm_plane.c index 7ebb33657704..5ef898b93d8d
> 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -111,10 +111,10 @@ static int mtk_plane_atomic_check(struct drm_plane
> *plane, clip.x2 = crtc_state->mode.hdisplay;
>  	clip.y2 = crtc_state->mode.vdisplay;
> 
> -	return drm_plane_helper_check_state(state, crtc_state, &clip,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    true, true);
> +	return drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   true, true);
>  }
> 
>  static void mtk_plane_atomic_update(struct drm_plane *plane,
> diff --git a/drivers/gpu/drm/meson/meson_plane.c
> b/drivers/gpu/drm/meson/meson_plane.c index 2a00b720c371..d0a6ac8390f3
> 100644
> --- a/drivers/gpu/drm/meson/meson_plane.c
> +++ b/drivers/gpu/drm/meson/meson_plane.c
> @@ -61,10 +61,10 @@ static int meson_plane_atomic_check(struct drm_plane
> *plane, clip.x2 = crtc_state->mode.hdisplay;
>  	clip.y2 = crtc_state->mode.vdisplay;
> 
> -	return drm_plane_helper_check_state(state, crtc_state, &clip,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    true, true);
> +	return drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   true, true);
>  }
> 
>  /* Takes a fixed 16.16 number and converts it to integer. */
> diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c index
> 1c194a9453d9..df3360acacca 100644
> --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> @@ -348,8 +348,9 @@ static int mdp5_plane_atomic_check_with_state(struct
> drm_crtc_state *crtc_state, min_scale = FRAC_16_16(1, 8);
>  	max_scale = FRAC_16_16(8, 1);
> 
> -	ret = drm_plane_helper_check_state(state, crtc_state, &clip,
> -					   min_scale, max_scale, true, true);
> +	ret = drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						  min_scale, max_scale,
> +						  true, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/nouveau/nv50_display.c
> b/drivers/gpu/drm/nouveau/nv50_display.c index 7f11a88d0593..8ab0fac3544d
> 100644
> --- a/drivers/gpu/drm/nouveau/nv50_display.c
> +++ b/drivers/gpu/drm/nouveau/nv50_display.c
> @@ -1143,11 +1143,11 @@ nv50_curs_acquire(struct nv50_wndw *wndw, struct
> nv50_wndw_atom *asyw, {
>  	int ret;
> 
> -	ret = drm_plane_helper_check_state(&asyw->state, &asyh->state,
> -					   &asyw->clip,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   true, true);
> +	ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
> +						  &asyw->clip,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  true, true);
>  	asyh->curs.visible = asyw->state.visible;
>  	if (ret || !asyh->curs.visible)
>  		return ret;
> @@ -1433,11 +1433,11 @@ nv50_base_acquire(struct nv50_wndw *wndw, struct
> nv50_wndw_atom *asyw, if (!fb->format->depth)
>  		return -EINVAL;
> 
> -	ret = drm_plane_helper_check_state(&asyw->state, &asyh->state,
> -					   &asyw->clip,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   false, true);
> +	ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
> +						  &asyw->clip,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  false, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index
> 36d0f101e30d..ba7505292b78 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -659,9 +659,9 @@ static int vop_plane_atomic_check(struct drm_plane
> *plane, clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> 
> -	ret = drm_plane_helper_check_state(state, crtc_state, &clip,
> -					   min_scale, max_scale,
> -					   true, true);
> +	ret = drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						  min_scale, max_scale,
> +						  true, true);
>  	if (ret)
>  		return ret;
> 
> diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
> index e95d9e2a7f6c..fc70351b9017 100644
> --- a/drivers/gpu/drm/tegra/dc.c
> +++ b/drivers/gpu/drm/tegra/dc.c
> @@ -491,8 +491,8 @@ static int tegra_plane_state_add(struct tegra_plane
> *plane, clip.y2 = crtc_state->mode.vdisplay;
> 
>  	/* Check plane state for visibility and calculate clipping bounds */
> -	err = drm_plane_helper_check_state(state, crtc_state, &clip,
> -					   0, INT_MAX, true, true);
> +	err = drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						  0, INT_MAX, true, true);
>  	if (err < 0)
>  		return err;
> 
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index d95e7b1c3b11..a2a93d7e2a04
> 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> @@ -454,10 +454,10 @@ int vmw_du_primary_plane_atomic_check(struct drm_plane
> *plane, clip.y2 = crtc_state->adjusted_mode.vdisplay;
>  	}
> 
> -	ret = drm_plane_helper_check_state(state, crtc_state, &clip,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   DRM_PLANE_HELPER_NO_SCALING,
> -					   false, true);
> +	ret = drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  DRM_PLANE_HELPER_NO_SCALING,
> +						  false, true);
> 
>  	if (!ret && new_fb) {
>  		struct drm_crtc *crtc = state->crtc;
> diff --git a/drivers/gpu/drm/zte/zx_plane.c b/drivers/gpu/drm/zte/zx_plane.c
> index ee0002529b8f..68fd2e2dc78a 100644
> --- a/drivers/gpu/drm/zte/zx_plane.c
> +++ b/drivers/gpu/drm/zte/zx_plane.c
> @@ -80,9 +80,9 @@ static int zx_vl_plane_atomic_check(struct drm_plane
> *plane, clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> 
> -	return drm_plane_helper_check_state(plane_state, crtc_state, &clip,
> -					    min_scale, max_scale,
> -					    true, true);
> +	return drm_atomic_helper_check_plane_state(plane_state, crtc_state,
> +						   &clip, min_scale, max_scale,
> +						   true, true);
>  }
> 
>  static int zx_vl_get_fmt(uint32_t format)
> @@ -315,10 +315,11 @@ static int zx_gl_plane_atomic_check(struct drm_plane
> *plane, clip.x2 = crtc_state->adjusted_mode.hdisplay;
>  	clip.y2 = crtc_state->adjusted_mode.vdisplay;
> 
> -	return drm_plane_helper_check_state(plane_state, crtc_state, &clip,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    DRM_PLANE_HELPER_NO_SCALING,
> -					    false, true);
> +	return drm_atomic_helper_check_plane_state(plane_state, crtc_state,
> +						   &clip,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   DRM_PLANE_HELPER_NO_SCALING,
> +						   false, true);
>  }
> 
>  static int zx_gl_get_fmt(uint32_t format)
> diff --git a/include/drm/drm_atomic_helper.h
> b/include/drm/drm_atomic_helper.h index d2b56cc657e9..4842ee9485ce 100644
> --- a/include/drm/drm_atomic_helper.h
> +++ b/include/drm/drm_atomic_helper.h
> @@ -38,6 +38,13 @@ struct drm_private_state;
> 
>  int drm_atomic_helper_check_modeset(struct drm_device *dev,
>  				struct drm_atomic_state *state);
> +int drm_atomic_helper_check_plane_state(struct drm_plane_state
> *plane_state, +					const struct drm_crtc_state *crtc_state,
> +					const struct drm_rect *clip,
> +					int min_scale,
> +					int max_scale,
> +					bool can_position,
> +					bool can_update_disabled);
>  int drm_atomic_helper_check_planes(struct drm_device *dev,
>  			       struct drm_atomic_state *state);
>  int drm_atomic_helper_check(struct drm_device *dev,
> diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
> index 41b8309b0a57..8aa49c0ecd4d 100644
> --- a/include/drm/drm_plane_helper.h
> +++ b/include/drm/drm_plane_helper.h
> @@ -38,12 +38,6 @@
>   */
>  #define DRM_PLANE_HELPER_NO_SCALING (1<<16)
> 
> -int drm_plane_helper_check_state(struct drm_plane_state *plane_state,
> -				 const struct drm_crtc_state *crtc_state,
> -				 const struct drm_rect *clip,
> -				 int min_scale, int max_scale,
> -				 bool can_position,
> -				 bool can_update_disabled);
>  int drm_plane_helper_check_update(struct drm_plane *plane,
>  				  struct drm_crtc *crtc,
>  				  struct drm_framebuffer *fb,


-- 
Regards,

Laurent Pinchart

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