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path: root/drivers/gpu/drm/vc4/vc4_plane.c
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-rw-r--r--drivers/gpu/drm/vc4/vc4_plane.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 5612cab55227..af4b8944a603 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -220,7 +220,7 @@ static void vc4_plane_reset(struct drm_plane *plane)
__drm_atomic_helper_plane_reset(plane, &vc4_state->base);
}
-static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val)
+static void vc4_dlist_counter_increment(struct vc4_plane_state *vc4_state)
{
if (vc4_state->dlist_count == vc4_state->dlist_size) {
u32 new_size = max(4u, vc4_state->dlist_count * 2);
@@ -235,7 +235,15 @@ static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val)
vc4_state->dlist_size = new_size;
}
- vc4_state->dlist[vc4_state->dlist_count++] = val;
+ vc4_state->dlist_count++;
+}
+
+static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val)
+{
+ unsigned int idx = vc4_state->dlist_count;
+
+ vc4_dlist_counter_increment(vc4_state);
+ vc4_state->dlist[idx] = val;
}
/* Returns the scl0/scl1 field based on whether the dimensions need to
@@ -978,8 +986,10 @@ static int vc4_plane_mode_set(struct drm_plane *plane,
* be set when calling vc4_plane_allocate_lbm().
*/
if (vc4_state->y_scaling[0] != VC4_SCALING_NONE ||
- vc4_state->y_scaling[1] != VC4_SCALING_NONE)
- vc4_state->lbm_offset = vc4_state->dlist_count++;
+ vc4_state->y_scaling[1] != VC4_SCALING_NONE) {
+ vc4_state->lbm_offset = vc4_state->dlist_count;
+ vc4_dlist_counter_increment(vc4_state);
+ }
if (num_planes > 1) {
/* Emit Cb/Cr as channel 0 and Y as channel