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-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch24
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch b/target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch
new file mode 100644
index 0000000000..f11c70c7ae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch
@@ -0,0 +1,24 @@
+From 4b060ef559d6d6cd229484a60b56e15993f3053c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 16:30:55 +0000
+Subject: [PATCH] drm/atomic: Don't fixup modes that haven't been reset
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/drm_atomic_helper.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -430,6 +430,11 @@ mode_fixup(struct drm_atomic_state *stat
+ new_crtc_state =
+ drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
+
++ if (!new_crtc_state->mode_changed &&
++ !new_crtc_state->connectors_changed) {
++ continue;
++ }
++
+ /*
+ * Each encoder has at most one connector (since we always steal
+ * it away), so we won't call ->mode_fixup twice.