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

2 files changed, 23 insertions, 21 deletions

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 40eb5c911e3c..4be8c562d5eb 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -950,44 +950,45 @@ static bool dpu_plane_validate_src(struct drm_rect *src,
 }
 
 static int dpu_plane_atomic_check(struct drm_plane *plane,
-				  struct drm_plane_state *state)
+				  struct drm_plane_state *new_plane_state)
 {
 	int ret = 0, min_scale;
 	struct dpu_plane *pdpu = to_dpu_plane(plane);
-	struct dpu_plane_state *pstate = to_dpu_plane_state(state);
+	struct dpu_plane_state *pstate = to_dpu_plane_state(new_plane_state);
 	const struct drm_crtc_state *crtc_state = NULL;
 	const struct dpu_format *fmt;
 	struct drm_rect src, dst, fb_rect = { 0 };
 	uint32_t min_src_size, max_linewidth;
 
-	if (state->crtc)
-		crtc_state = drm_atomic_get_new_crtc_state(state->state,
-							   state->crtc);
+	if (new_plane_state->crtc)
+		crtc_state = drm_atomic_get_new_crtc_state(new_plane_state->state,
+							   new_plane_state->crtc);
 
 	min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxupscale);
-	ret = drm_atomic_helper_check_plane_state(state, crtc_state, min_scale,
-					  pdpu->pipe_sblk->maxdwnscale << 16,
-					  true, true);
+	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
+						  min_scale,
+						  pdpu->pipe_sblk->maxdwnscale << 16,
+						  true, true);
 	if (ret) {
 		DPU_DEBUG_PLANE(pdpu, "Check plane state failed (%d)\n", ret);
 		return ret;
 	}
-	if (!state->visible)
+	if (!new_plane_state->visible)
 		return 0;
 
-	src.x1 = state->src_x >> 16;
-	src.y1 = state->src_y >> 16;
-	src.x2 = src.x1 + (state->src_w >> 16);
-	src.y2 = src.y1 + (state->src_h >> 16);
+	src.x1 = new_plane_state->src_x >> 16;
+	src.y1 = new_plane_state->src_y >> 16;
+	src.x2 = src.x1 + (new_plane_state->src_w >> 16);
+	src.y2 = src.y1 + (new_plane_state->src_h >> 16);
 
-	dst = drm_plane_state_dest(state);
+	dst = drm_plane_state_dest(new_plane_state);
 
-	fb_rect.x2 = state->fb->width;
-	fb_rect.y2 = state->fb->height;
+	fb_rect.x2 = new_plane_state->fb->width;
+	fb_rect.y2 = new_plane_state->fb->height;
 
 	max_linewidth = pdpu->catalog->caps->max_linewidth;
 
-	fmt = to_dpu_format(msm_framebuffer_format(state->fb));
+	fmt = to_dpu_format(msm_framebuffer_format(new_plane_state->fb));
 
 	min_src_size = DPU_FORMAT_IS_YUV(fmt) ? 2 : 1;
 
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
index 05fa8255caeb..f5434a5254e0 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
@@ -404,20 +404,21 @@ static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state,
 }
 
 static int mdp5_plane_atomic_check(struct drm_plane *plane,
-				   struct drm_plane_state *state)
+				   struct drm_plane_state *new_plane_state)
 {
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *crtc_state;
 
-	crtc = state->crtc ? state->crtc : plane->state->crtc;
+	crtc = new_plane_state->crtc ? new_plane_state->crtc : plane->state->crtc;
 	if (!crtc)
 		return 0;
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
+	crtc_state = drm_atomic_get_existing_crtc_state(new_plane_state->state,
+							crtc);
 	if (WARN_ON(!crtc_state))
 		return -EINVAL;
 
-	return mdp5_plane_atomic_check_with_state(crtc_state, state);
+	return mdp5_plane_atomic_check_with_state(crtc_state, new_plane_state);
 }
 
 static void mdp5_plane_atomic_update(struct drm_plane *plane,