From: Kieran Bingham <kieran.bingham+rene...@ideasonboard.com>
To allow dual pipelines utilising two WPF entities when available, the
VSP was updated to support header-mode display list in continuous
pipelines.
A small bug in the status check of the command register causes the
second pipeline to be directly afflicted by the running of the first;
appearing as a perceived performance issue with stuttering display.
Fix the vsp1_dl_list_hw_update_pending() call to ensure that the read
comparison corresponds to the correct pipeline.
Fixes: eaf4bfad6ad8 ("v4l: vsp1: Add support for header display
lists in continuous mode")
Cc: "Stable v4.14+" <sta...@vger.kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham+rene...@ideasonboard.com>
---
drivers/media/platform/vsp1/vsp1_dl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/vsp1/vsp1_dl.c
b/drivers/media/platform/vsp1/vsp1_dl.c
index 8cd03ee45f79..34b5ed2592f8 100644
--- a/drivers/media/platform/vsp1/vsp1_dl.c
+++ b/drivers/media/platform/vsp1/vsp1_dl.c
@@ -509,7 +509,8 @@ static bool vsp1_dl_list_hw_update_pending(struct
vsp1_dl_manager *dlm)
return !!(vsp1_read(vsp1, VI6_DL_BODY_SIZE)
& VI6_DL_BODY_SIZE_UPD);
else
- return !!(vsp1_read(vsp1, VI6_CMD(dlm->index) &
VI6_CMD_UPDHDR));
+ return !!(vsp1_read(vsp1, VI6_CMD(dlm->index))
+ & VI6_CMD_UPDHDR);
}
static bool vsp1_dl_hw_active(struct vsp1_dl_manager *dlm)
--
2.7.4
