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openmptcprouter/6.1/target/linux/bcm27xx/patches-6.1/0044-drm-vc4-Force-trigger-of-dlist-update-on-margins-cha.patch

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From 3c5802ee9bdae3d3fc37b0da8a437cf565ad264a Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Fri, 1 Apr 2022 11:31:38 +0100
Subject: [PATCH 044/726] drm/vc4: Force trigger of dlist update on margins
change
When the margins are changed, the dlist needs to be regenerated
with the changed updated dest regions for each of the planes.
Setting the zpos_changed flag is sufficient to trigger that
without doing a full modeset, therefore set it should the
margins be changed.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/gpu/drm/vc4/vc4_crtc.c | 14 ++++++++++----
drivers/gpu/drm/vc4/vc4_drv.h | 7 +------
2 files changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 0b16fb5acd7d..97b1107a30bb 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -757,10 +757,16 @@ static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
if (conn_state->crtc != crtc)
continue;
- vc4_state->margins.left = conn_state->tv.margins.left;
- vc4_state->margins.right = conn_state->tv.margins.right;
- vc4_state->margins.top = conn_state->tv.margins.top;
- vc4_state->margins.bottom = conn_state->tv.margins.bottom;
+ if (memcmp(&vc4_state->margins, &conn_state->tv.margins,
+ sizeof(vc4_state->margins))) {
+ memcpy(&vc4_state->margins, &conn_state->tv.margins,
+ sizeof(vc4_state->margins));
+
+ /* Need to force the dlist entries for all planes to be
+ * updated so that the dest rectangles are changed.
+ */
+ crtc_state->zpos_changed = true;
+ }
break;
}
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h
index 3be66ba8ecdd..a3d058d3c788 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -581,12 +581,7 @@ struct vc4_crtc_state {
bool txp_armed;
unsigned int assigned_channel;
- struct {
- unsigned int left;
- unsigned int right;
- unsigned int top;
- unsigned int bottom;
- } margins;
+ struct drm_connector_tv_margins margins;
unsigned long hvs_load;
--
2.33.1