drm: Rename plane atomic_check state names

Most drivers call the argument to the plane atomic_check hook simply
state, which is going to conflict with the global atomic state in a
later rework. Let's rename it to new_plane_state (or new_state depending
on the convention used in the driver).

This was done using the coccinelle script below, and built tested:

@ plane_atomic_func @
identifier helpers;
identifier func;
@@

 static const struct drm_plane_helper_funcs helpers = {
 	.atomic_check = func,
 };

@ has_old_state @
identifier plane_atomic_func.func;
identifier plane;
expression e;
symbol old_state;
symbol state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *state)
 {
 	...
 	struct drm_plane_state *old_state = e;
 	...
 }

@ depends on has_old_state @
identifier plane_atomic_func.func;
identifier plane;
symbol old_state;
@@

 func(struct drm_plane *plane,
-	struct drm_plane_state *state
+	struct drm_plane_state *new_state
     )
 {
 	<+...
-	state
+	new_state
	...+>
 }

@ has_state @
identifier plane_atomic_func.func;
identifier plane;
symbol state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *state)
 {
 	...
 }

@ depends on has_state @
identifier plane_atomic_func.func;
identifier plane;
symbol old_state;
@@

 func(struct drm_plane *plane,
-	struct drm_plane_state *state
+	struct drm_plane_state *new_plane_state
     )
 {
 	<+...
-	state
+	new_plane_state
	...+>
 }

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219120032.260676-2-maxime@cerno.tech

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 63f839679a0a..906fa4ae25c9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6432,7 +6432,7 @@ static int dm_plane_helper_check_state(struct drm_plane_state *state,
 }
 
 static int dm_plane_atomic_check(struct drm_plane *plane,
-				 struct drm_plane_state *state)
+				 struct drm_plane_state *new_plane_state)
 {
 	struct amdgpu_device *adev = drm_to_adev(plane->dev);
 	struct dc *dc = adev->dm.dc;
@@ -6441,23 +6441,24 @@ static int dm_plane_atomic_check(struct drm_plane *plane,
 	struct drm_crtc_state *new_crtc_state;
 	int ret;
 
-	trace_amdgpu_dm_plane_atomic_check(state);
+	trace_amdgpu_dm_plane_atomic_check(new_plane_state);
 
-	dm_plane_state = to_dm_plane_state(state);
+	dm_plane_state = to_dm_plane_state(new_plane_state);
 
 	if (!dm_plane_state->dc_state)
 		return 0;
 
 	new_crtc_state =
-		drm_atomic_get_new_crtc_state(state->state, state->crtc);
+		drm_atomic_get_new_crtc_state(new_plane_state->state,
+					      new_plane_state->crtc);
 	if (!new_crtc_state)
 		return -EINVAL;
 
-	ret = dm_plane_helper_check_state(state, new_crtc_state);
+	ret = dm_plane_helper_check_state(new_plane_state, new_crtc_state);
 	if (ret)
 		return ret;
 
-	ret = fill_dc_scaling_info(state, &scaling_info);
+	ret = fill_dc_scaling_info(new_plane_state, &scaling_info);
 	if (ret)
 		return ret;