[PATCH v2 5/5] drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c

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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.

v2: Fix the WARNs about plane_state->crtc matching crtc_state->crtc

Cc: Daniel Vetter <daniel@xxxxxxxx>
Suggested-by: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/arm/hdlcd_crtc.c            |   8 +--
 drivers/gpu/drm/arm/malidp_planes.c         |   4 +-
 drivers/gpu/drm/drm_atomic_helper.c         |  94 +++++++++++++++++++++++++
 drivers/gpu/drm/drm_plane_helper.c          | 102 ++--------------------------
 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, 169 insertions(+), 165 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..a381913c894d 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -696,6 +696,100 @@ 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(plane_state->crtc && plane_state->crtc != crtc_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 eef0ffcd7ed5..f1be8cd4e387 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -100,100 +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(plane_state->crtc && plane_state->crtc != crtc_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
@@ -254,10 +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,
-- 
2.13.6

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