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From decd9119a1379d04b875747405b78427b36b8d88 Mon Sep 17 00:00:00 2001
From: 6by9 <6by9@users.noreply.github.com>
Date: Fri, 1 Apr 2022 11:31:38 +0100
Subject: [PATCH] drm/vc4: Force trigger of dlist update on margins
change (#4970)
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(-)
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -728,10 +728,16 @@ static int vc4_crtc_atomic_check(struct
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;
}
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -589,12 +589,7 @@ 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;
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