Nothing in drm_atomic_helper_damage_merged() requires the old
plane state. Remove the parameter and mass-convert callers.

Most callers now no longer require the old plane state in their plane's
atomic_update helper. Remove it as well.

Signed-off-by: Thomas Zimmermann <[email protected]>
---
 drivers/gpu/drm/ast/ast_cursor.c           |  3 +--
 drivers/gpu/drm/drm_damage_helper.c        |  4 +---
 drivers/gpu/drm/drm_mipi_dbi.c             |  3 +--
 drivers/gpu/drm/i915/display/intel_plane.c | 11 ++---------
 drivers/gpu/drm/i915/display/intel_psr.c   |  3 +--
 drivers/gpu/drm/sitronix/st7586.c          |  3 +--
 drivers/gpu/drm/tiny/gm12u320.c            |  2 +-
 drivers/gpu/drm/tiny/ili9225.c             |  3 +--
 drivers/gpu/drm/tiny/repaper.c             |  2 +-
 drivers/gpu/drm/tiny/sharp-memory.c        |  3 +--
 drivers/gpu/drm/virtio/virtgpu_plane.c     |  2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c       |  4 +---
 include/drm/drm_damage_helper.h            |  3 +--
 13 files changed, 14 insertions(+), 32 deletions(-)

diff --git a/drivers/gpu/drm/ast/ast_cursor.c b/drivers/gpu/drm/ast/ast_cursor.c
index fd19c45f2abe..12d5f93eec5f 100644
--- a/drivers/gpu/drm/ast/ast_cursor.c
+++ b/drivers/gpu/drm/ast/ast_cursor.c
@@ -251,7 +251,6 @@ static void ast_cursor_plane_helper_atomic_update(struct 
drm_plane *plane,
        struct drm_plane_state *plane_state = 
drm_atomic_get_new_plane_state(state, plane);
        struct drm_shadow_plane_state *shadow_plane_state = 
to_drm_shadow_plane_state(plane_state);
        struct drm_framebuffer *fb = plane_state->fb;
-       struct drm_plane_state *old_plane_state = 
drm_atomic_get_old_plane_state(state, plane);
        struct ast_device *ast = to_ast_device(plane->dev);
        struct drm_rect damage;
        u64 dst_off = ast_plane->offset;
@@ -266,7 +265,7 @@ static void ast_cursor_plane_helper_atomic_update(struct 
drm_plane *plane,
         * engine to the offset.
         */
 
-       if (drm_atomic_helper_damage_merged(old_plane_state, plane_state, 
&damage)) {
+       if (drm_atomic_helper_damage_merged(plane_state, &damage)) {
                const u8 *argb4444 = 
ast_cursor_plane_get_argb4444(ast_cursor_plane,
                                                                   
shadow_plane_state,
                                                                   &damage);
diff --git a/drivers/gpu/drm/drm_damage_helper.c 
b/drivers/gpu/drm/drm_damage_helper.c
index 28f26234523d..28b847636253 100644
--- a/drivers/gpu/drm/drm_damage_helper.c
+++ b/drivers/gpu/drm/drm_damage_helper.c
@@ -296,7 +296,6 @@ EXPORT_SYMBOL(drm_atomic_helper_damage_iter_next);
 
 /**
  * drm_atomic_helper_damage_merged - Merged plane damage
- * @old_state: Old plane state for validation.
  * @state: Plane state from which to iterate the damage clips.
  * @rect: Returns the merged damage rectangle
  *
@@ -309,8 +308,7 @@ EXPORT_SYMBOL(drm_atomic_helper_damage_iter_next);
  * Returns:
  * True if there is valid plane damage otherwise false.
  */
-bool drm_atomic_helper_damage_merged(const struct drm_plane_state *old_state,
-                                    const struct drm_plane_state *state,
+bool drm_atomic_helper_damage_merged(const struct drm_plane_state *state,
                                     struct drm_rect *rect)
 {
        struct drm_atomic_helper_damage_iter iter;
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index 25cf04d029f7..4da201c38c93 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -380,7 +380,6 @@ void drm_mipi_dbi_plane_helper_atomic_update(struct 
drm_plane *plane,
        struct drm_plane_state *plane_state = plane->state;
        struct drm_shadow_plane_state *shadow_plane_state = 
to_drm_shadow_plane_state(plane_state);
        struct drm_framebuffer *fb = plane_state->fb;
-       struct drm_plane_state *old_plane_state = 
drm_atomic_get_old_plane_state(state, plane);
        struct drm_rect rect;
        int idx;
 
@@ -388,7 +387,7 @@ void drm_mipi_dbi_plane_helper_atomic_update(struct 
drm_plane *plane,
                return;
 
        if (drm_dev_enter(plane->dev, &idx)) {
-               if (drm_atomic_helper_damage_merged(old_plane_state, 
plane_state, &rect))
+               if (drm_atomic_helper_damage_merged(plane_state, &rect))
                        mipi_dbi_fb_dirty(&shadow_plane_state->data[0], fb, 
&rect,
                                          &shadow_plane_state->fmtcnv_state);
                drm_dev_exit(idx);
diff --git a/drivers/gpu/drm/i915/display/intel_plane.c 
b/drivers/gpu/drm/i915/display/intel_plane.c
index c181a7d063ec..57107cce9267 100644
--- a/drivers/gpu/drm/i915/display/intel_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_plane.c
@@ -346,7 +346,6 @@ static void intel_plane_clear_hw_state(struct 
intel_plane_state *plane_state)
 
 static void
 intel_plane_copy_uapi_plane_damage(struct intel_plane_state *new_plane_state,
-                                  const struct intel_plane_state 
*old_uapi_plane_state,
                                   const struct intel_plane_state 
*new_uapi_plane_state)
 {
        struct intel_display *display = to_intel_display(new_plane_state);
@@ -356,10 +355,9 @@ intel_plane_copy_uapi_plane_damage(struct 
intel_plane_state *new_plane_state,
        if (DISPLAY_VER(display) < 12)
                return;
 
-       if (!drm_atomic_helper_damage_merged(&old_uapi_plane_state->uapi,
-                                            &new_uapi_plane_state->uapi,
+       if (!drm_atomic_helper_damage_merged(&new_uapi_plane_state->uapi,
                                             damage))
-               /* Incase helper fails, mark whole plane region as damage */
+               /* In case the helper fails, mark whole plane region as damage 
*/
                *damage = drm_plane_state_src(&new_uapi_plane_state->uapi);
 }
 
@@ -815,7 +813,6 @@ static int plane_atomic_check(struct intel_atomic_state 
*state,
        const struct intel_plane_state *old_plane_state =
                intel_atomic_get_old_plane_state(state, plane);
        const struct intel_plane_state *new_primary_crtc_plane_state;
-       const struct intel_plane_state *old_primary_crtc_plane_state;
        struct intel_crtc *crtc = intel_crtc_for_pipe(display, plane->pipe);
        const struct intel_crtc_state *old_crtc_state =
                intel_atomic_get_old_crtc_state(state, crtc);
@@ -830,15 +827,11 @@ static int plane_atomic_check(struct intel_atomic_state 
*state,
 
                new_primary_crtc_plane_state =
                        intel_atomic_get_new_plane_state(state, 
primary_crtc_plane);
-               old_primary_crtc_plane_state =
-                       intel_atomic_get_old_plane_state(state, 
primary_crtc_plane);
        } else {
                new_primary_crtc_plane_state = new_plane_state;
-               old_primary_crtc_plane_state = old_plane_state;
        }
 
        intel_plane_copy_uapi_plane_damage(new_plane_state,
-                                          old_primary_crtc_plane_state,
                                           new_primary_crtc_plane_state);
 
        intel_plane_copy_uapi_to_hw_state(new_plane_state,
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index 9958230a3dd9..adb936806488 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -2970,8 +2970,7 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state 
*state,
                src = drm_plane_state_src(&new_plane_state->uapi);
                drm_rect_fp_to_int(&src, &src);
 
-               if (!drm_atomic_helper_damage_merged(&old_plane_state->uapi,
-                                                    &new_plane_state->uapi, 
&damaged_area))
+               if (!drm_atomic_helper_damage_merged(&new_plane_state->uapi, 
&damaged_area))
                        continue;
 
                damaged_area.y1 += new_plane_state->uapi.dst.y1 - src.y1;
diff --git a/drivers/gpu/drm/sitronix/st7586.c 
b/drivers/gpu/drm/sitronix/st7586.c
index 28b2245f6b79..2cc0312595a4 100644
--- a/drivers/gpu/drm/sitronix/st7586.c
+++ b/drivers/gpu/drm/sitronix/st7586.c
@@ -176,7 +176,6 @@ static void st7586_plane_helper_atomic_update(struct 
drm_plane *plane,
        struct drm_plane_state *plane_state = plane->state;
        struct drm_shadow_plane_state *shadow_plane_state = 
to_drm_shadow_plane_state(plane_state);
        struct drm_framebuffer *fb = plane_state->fb;
-       struct drm_plane_state *old_plane_state = 
drm_atomic_get_old_plane_state(state, plane);
        struct drm_rect rect;
        int idx;
 
@@ -186,7 +185,7 @@ static void st7586_plane_helper_atomic_update(struct 
drm_plane *plane,
        if (!drm_dev_enter(plane->dev, &idx))
                return;
 
-       if (drm_atomic_helper_damage_merged(old_plane_state, plane_state, 
&rect))
+       if (drm_atomic_helper_damage_merged(plane_state, &rect))
                st7586_fb_dirty(&shadow_plane_state->data[0], fb, &rect,
                                &shadow_plane_state->fmtcnv_state);
 
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index d73dfebb4353..880b965e283a 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -582,7 +582,7 @@ static void gm12u320_pipe_update(struct 
drm_simple_display_pipe *pipe,
        struct drm_shadow_plane_state *shadow_plane_state = 
to_drm_shadow_plane_state(state);
        struct drm_rect rect;
 
-       if (drm_atomic_helper_damage_merged(old_state, state, &rect))
+       if (drm_atomic_helper_damage_merged(state, &rect))
                gm12u320_fb_mark_dirty(state->fb, &shadow_plane_state->data[0], 
&rect);
 }
 
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index 5bf52a8fd75b..d821a659a585 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -185,7 +185,6 @@ static void ili9225_plane_helper_atomic_update(struct 
drm_plane *plane,
        struct drm_plane_state *plane_state = plane->state;
        struct drm_shadow_plane_state *shadow_plane_state = 
to_drm_shadow_plane_state(plane_state);
        struct drm_framebuffer *fb = plane_state->fb;
-       struct drm_plane_state *old_plane_state = 
drm_atomic_get_old_plane_state(state, plane);
        struct drm_rect rect;
        int idx;
 
@@ -195,7 +194,7 @@ static void ili9225_plane_helper_atomic_update(struct 
drm_plane *plane,
        if (!drm_dev_enter(drm, &idx))
                return;
 
-       if (drm_atomic_helper_damage_merged(old_plane_state, plane_state, 
&rect))
+       if (drm_atomic_helper_damage_merged(plane_state, &rect))
                ili9225_fb_dirty(&shadow_plane_state->data[0], fb, &rect,
                                 &shadow_plane_state->fmtcnv_state);
 
diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index c8270591afc7..531831d2b73f 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -837,7 +837,7 @@ static void repaper_pipe_update(struct 
drm_simple_display_pipe *pipe,
        if (!pipe->crtc.state->active)
                return;
 
-       if (drm_atomic_helper_damage_merged(old_state, state, &rect))
+       if (drm_atomic_helper_damage_merged(state, &rect))
                repaper_fb_dirty(state->fb, shadow_plane_state->data,
                                 &shadow_plane_state->fmtcnv_state);
 }
diff --git a/drivers/gpu/drm/tiny/sharp-memory.c 
b/drivers/gpu/drm/tiny/sharp-memory.c
index 506e6432e70d..1dacd41ddbaa 100644
--- a/drivers/gpu/drm/tiny/sharp-memory.c
+++ b/drivers/gpu/drm/tiny/sharp-memory.c
@@ -241,7 +241,6 @@ static int sharp_memory_plane_atomic_check(struct drm_plane 
*plane,
 static void sharp_memory_plane_atomic_update(struct drm_plane *plane,
                                             struct drm_atomic_commit *state)
 {
-       struct drm_plane_state *old_state = 
drm_atomic_get_old_plane_state(state, plane);
        struct drm_plane_state *plane_state = plane->state;
        struct drm_shadow_plane_state *shadow_plane_state = 
to_drm_shadow_plane_state(plane_state);
        struct sharp_memory_device *smd;
@@ -251,7 +250,7 @@ static void sharp_memory_plane_atomic_update(struct 
drm_plane *plane,
        if (!smd->crtc.state->active)
                return;
 
-       if (drm_atomic_helper_damage_merged(old_state, plane_state, &rect))
+       if (drm_atomic_helper_damage_merged(plane_state, &rect))
                sharp_memory_fb_dirty(plane_state->fb, shadow_plane_state->data,
                                      &rect, &shadow_plane_state->fmtcnv_state);
 }
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c 
b/drivers/gpu/drm/virtio/virtgpu_plane.c
index 73aa70bd4231..24b786e1555e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -257,7 +257,7 @@ static void virtio_gpu_primary_plane_update(struct 
drm_plane *plane,
                return;
        }
 
-       if (!drm_atomic_helper_damage_merged(old_state, plane->state, &rect))
+       if (!drm_atomic_helper_damage_merged(plane->state, &rect))
                return;
 
        bo = gem_to_virtio_gpu_obj(plane->state->fb->obj[0]);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 4139837f4caf..f0df2b1c8465 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -977,7 +977,6 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
        enum stdu_content_type new_content_type;
        struct vmw_framebuffer_surface *new_vfbs;
        uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h;
-       struct drm_plane_state *old_state = plane->state;
        struct drm_rect rect;
        int ret;
 
@@ -1101,8 +1100,7 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
                struct vmw_surface *surf = vmw_user_object_surface(&vps->uo);
                struct vmw_resource *res = &surf->res;
 
-               if (!res->res_dirty && 
drm_atomic_helper_damage_merged(old_state,
-                                                                      
new_state,
+               if (!res->res_dirty && 
drm_atomic_helper_damage_merged(new_state,
                                                                       &rect)) {
                        /*
                         * At some point it might be useful to actually 
translate
diff --git a/include/drm/drm_damage_helper.h b/include/drm/drm_damage_helper.h
index fafe29b50fc6..b5a4de779db6 100644
--- a/include/drm/drm_damage_helper.h
+++ b/include/drm/drm_damage_helper.h
@@ -77,8 +77,7 @@ drm_atomic_helper_damage_iter_init(struct 
drm_atomic_helper_damage_iter *iter,
 bool
 drm_atomic_helper_damage_iter_next(struct drm_atomic_helper_damage_iter *iter,
                                   struct drm_rect *rect);
-bool drm_atomic_helper_damage_merged(const struct drm_plane_state *old_state,
-                                    const struct drm_plane_state *state,
+bool drm_atomic_helper_damage_merged(const struct drm_plane_state *state,
                                     struct drm_rect *rect);
 
 #endif
-- 
2.54.0

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