drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 1 Nov 2017 20:16:19 +0000 (22:16 +0200)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Mon, 20 Nov 2017 19:14:22 +0000 (21:14 +0200)
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@ffwll.ch>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171101201619.6175-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
17 files changed:
drivers/gpu/drm/arm/hdlcd_crtc.c
drivers/gpu/drm/arm/malidp_planes.c
drivers/gpu/drm/drm_atomic_helper.c
drivers/gpu/drm/drm_plane_helper.c
drivers/gpu/drm/drm_simple_kms_helper.c
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/imx/ipuv3-plane.c
drivers/gpu/drm/mediatek/mtk_drm_plane.c
drivers/gpu/drm/meson/meson_plane.c
drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
drivers/gpu/drm/nouveau/nv50_display.c
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
drivers/gpu/drm/tegra/dc.c
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
drivers/gpu/drm/zte/zx_plane.c
include/drm/drm_atomic_helper.h
include/drm/drm_plane_helper.h

index 14721723fa8acaa00ee04f75a66daf6fd2c34152..63511a3bbf6c090781b68c2b93f2834c1f6379cf 100644 (file)
@@ -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,
index 492d99dd55d4693c070b98ce5777ce27b8f316bd..72a07950167e8cb78edfc94a5f1f8ee3c3f297fc 100644 (file)
@@ -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;
 
index 07d4058d97d0dd69b73e6ca2c08ea507b9614000..ce6d11ae9e265b2f6f5313a27a68da75bbc7b043 100644 (file)
@@ -695,6 +695,100 @@ 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
index eef0ffcd7ed527914396ce8c4e814708cad47dfc..f1be8cd4e387feb40da81f8937ceb31702de611c 100644 (file)
@@ -99,100 +99,6 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
        return count;
 }
 
-/**
- * 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
@@ -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;
 
index d428c805025c96ece97e2ecaa75a6449fb661d05..9f3b1c94802b39bca38652a8d82d07ee086c798b 100644 (file)
@@ -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;
 
index 5e75d762745aa23b63d53854b4e08323ed616780..97406166417dc63b5bdd3e207263f218e875738a 100644 (file)
@@ -9418,12 +9418,12 @@ 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;
 
@@ -12842,11 +12842,11 @@ 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;
 
index 51b23ac175e397efe2ef06f6c171c2473c1426fb..5a67daedcf4d7e99ae6eac85996d26a70ad2b0d4 100644 (file)
@@ -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;
 
index 7ebb33657704751a967a5067eaf4365a88d95ee3..5ef898b93d8d0b9b14743e4e787a0364dc0ceca2 100644 (file)
@@ -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,
index 2a00b720c3718537e94ea1b48a76738e160cafdc..d0a6ac8390f39fd64dd194b76c3078e374ef51f2 100644 (file)
@@ -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. */
index 1c194a9453d9740c4681201ccfee44551858edbc..df3360acaccac371eb8e47da2bb7f57791750f51 100644 (file)
@@ -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;
 
index 0738ae1f6cf4efca2b4762c97079c3e458cf893c..9fc8fe0171184015da12856082035a020b6e644d 100644 (file)
@@ -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;
 
index 36d0f101e30d046ec59e8b396deb7957942960c8..ba7505292b7863cf5dcec440dc4d7508fa5c25e2 100644 (file)
@@ -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;
 
index 08b899fd74fc444ba34c6f246dce2426bd658618..91919d52b2075e91e91f2acfbcb2276cfec8f8e6 100644 (file)
@@ -500,8 +500,8 @@ 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;
 
index 91555c0370e1dbd9f0eea33f9d01b27a747631d7..13ac2c5a04ee112bb097814a621a80fa0f4bde35 100644 (file)
@@ -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;
index ee0002529b8f8627dbc8a511258aa9744e728902..68fd2e2dc78aecb9a52466ea21b5739ad38d55c7 100644 (file)
@@ -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)
index d2b56cc657e933593c8c8298c931876061f46e34..4842ee9485ceccad21d980ae8eb006e1507179f9 100644 (file)
@@ -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,
index 41b8309b0a57bd4393268c0f8c47b9ea9863dd59..8aa49c0ecd4d6e0d5214d8e1028a5b7ed0bff897 100644 (file)
  */
 #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,