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

3 files changed, 38 insertions, 34 deletions

diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index 7476301d7142..c04c868e337f 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -181,12 +181,12 @@ static void sti_cursor_init(struct sti_cursor *cursor)
 }
 
 static int sti_cursor_atomic_check(struct drm_plane *drm_plane,
-				   struct drm_plane_state *state)
+				   struct drm_plane_state *new_plane_state)
 {
 	struct sti_plane *plane = to_sti_plane(drm_plane);
 	struct sti_cursor *cursor = to_sti_cursor(plane);
-	struct drm_crtc *crtc = state->crtc;
-	struct drm_framebuffer *fb = state->fb;
+	struct drm_crtc *crtc = new_plane_state->crtc;
+	struct drm_framebuffer *fb = new_plane_state->fb;
 	struct drm_crtc_state *crtc_state;
 	struct drm_display_mode *mode;
 	int dst_x, dst_y, dst_w, dst_h;
@@ -196,15 +196,17 @@ static int sti_cursor_atomic_check(struct drm_plane *drm_plane,
 	if (!crtc || !fb)
 		return 0;
 
-	crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+	crtc_state = drm_atomic_get_crtc_state(new_plane_state->state, crtc);
 	mode = &crtc_state->mode;
-	dst_x = state->crtc_x;
-	dst_y = state->crtc_y;
-	dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
-	dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
+	dst_x = new_plane_state->crtc_x;
+	dst_y = new_plane_state->crtc_y;
+	dst_w = clamp_val(new_plane_state->crtc_w, 0,
+			  mode->crtc_hdisplay - dst_x);
+	dst_h = clamp_val(new_plane_state->crtc_h, 0,
+			  mode->crtc_vdisplay - dst_y);
 	/* src_x are in 16.16 format */
-	src_w = state->src_w >> 16;
-	src_h = state->src_h >> 16;
+	src_w = new_plane_state->src_w >> 16;
+	src_h = new_plane_state->src_h >> 16;
 
 	if (src_w < STI_CURS_MIN_SIZE ||
 	    src_h < STI_CURS_MIN_SIZE ||
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index 2f4a34f14d33..4fe91ab4f191 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -615,12 +615,12 @@ static int sti_gdp_get_dst(struct device *dev, int dst, int src)
 }
 
 static int sti_gdp_atomic_check(struct drm_plane *drm_plane,
-				struct drm_plane_state *state)
+				struct drm_plane_state *new_plane_state)
 {
 	struct sti_plane *plane = to_sti_plane(drm_plane);
 	struct sti_gdp *gdp = to_sti_gdp(plane);
-	struct drm_crtc *crtc = state->crtc;
-	struct drm_framebuffer *fb =  state->fb;
+	struct drm_crtc *crtc = new_plane_state->crtc;
+	struct drm_framebuffer *fb =  new_plane_state->fb;
 	struct drm_crtc_state *crtc_state;
 	struct sti_mixer *mixer;
 	struct drm_display_mode *mode;
@@ -633,17 +633,19 @@ static int sti_gdp_atomic_check(struct drm_plane *drm_plane,
 		return 0;
 
 	mixer = to_sti_mixer(crtc);
-	crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+	crtc_state = drm_atomic_get_crtc_state(new_plane_state->state, crtc);
 	mode = &crtc_state->mode;
-	dst_x = state->crtc_x;
-	dst_y = state->crtc_y;
-	dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
-	dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
+	dst_x = new_plane_state->crtc_x;
+	dst_y = new_plane_state->crtc_y;
+	dst_w = clamp_val(new_plane_state->crtc_w, 0, mode->hdisplay - dst_x);
+	dst_h = clamp_val(new_plane_state->crtc_h, 0, mode->vdisplay - dst_y);
 	/* src_x are in 16.16 format */
-	src_x = state->src_x >> 16;
-	src_y = state->src_y >> 16;
-	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX_WIDTH);
-	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX_HEIGHT);
+	src_x = new_plane_state->src_x >> 16;
+	src_y = new_plane_state->src_y >> 16;
+	src_w = clamp_val(new_plane_state->src_w >> 16, 0,
+			  GAM_GDP_SIZE_MAX_WIDTH);
+	src_h = clamp_val(new_plane_state->src_h >> 16, 0,
+			  GAM_GDP_SIZE_MAX_HEIGHT);
 
 	format = sti_gdp_fourcc2format(fb->format->format);
 	if (format == -1) {
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 62f824cd5f21..5d492ac1f2dd 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1017,12 +1017,12 @@ out:
 }
 
 static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
-				  struct drm_plane_state *state)
+				  struct drm_plane_state *new_plane_state)
 {
 	struct sti_plane *plane = to_sti_plane(drm_plane);
 	struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
-	struct drm_crtc *crtc = state->crtc;
-	struct drm_framebuffer *fb = state->fb;
+	struct drm_crtc *crtc = new_plane_state->crtc;
+	struct drm_framebuffer *fb = new_plane_state->fb;
 	struct drm_crtc_state *crtc_state;
 	struct drm_display_mode *mode;
 	int dst_x, dst_y, dst_w, dst_h;
@@ -1032,17 +1032,17 @@ static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
 	if (!crtc || !fb)
 		return 0;
 
-	crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+	crtc_state = drm_atomic_get_crtc_state(new_plane_state->state, crtc);
 	mode = &crtc_state->mode;
-	dst_x = state->crtc_x;
-	dst_y = state->crtc_y;
-	dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
-	dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
+	dst_x = new_plane_state->crtc_x;
+	dst_y = new_plane_state->crtc_y;
+	dst_w = clamp_val(new_plane_state->crtc_w, 0, mode->hdisplay - dst_x);
+	dst_h = clamp_val(new_plane_state->crtc_h, 0, mode->vdisplay - dst_y);
 	/* src_x are in 16.16 format */
-	src_x = state->src_x >> 16;
-	src_y = state->src_y >> 16;
-	src_w = state->src_w >> 16;
-	src_h = state->src_h >> 16;
+	src_x = new_plane_state->src_x >> 16;
+	src_y = new_plane_state->src_y >> 16;
+	src_w = new_plane_state->src_w >> 16;
+	src_h = new_plane_state->src_h >> 16;
 
 	if (mode->clock && !sti_hqvdp_check_hw_scaling(hqvdp, mode,
 						       src_w, src_h,