diff options
| author | Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> | 2018-02-09 09:50:34 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-19 08:55:08 +0200 |
| commit | 9bb8f59e6ba040a38ded403e154889b763f3cb64 (patch) | |
| tree | f667770fbfbeec93ab24c225194cefe870b98d7c | |
| parent | 2276552990c4b71b7b6fb2a71bc6a4b1782afa19 (diff) | |
media: v4l: vsp1: Fix header display list status check in continuous mode
commit 613928e85317b945c863bb893f5737d2f22f5425 upstream.
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+" <stable@vger.kernel.org>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_dl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_dl.c b/drivers/media/platform/vsp1/vsp1_dl.c index 4257451f1bd8..0b86ed01e85d 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 void vsp1_dl_list_hw_enqueue(struct vsp1_dl_list *dl) |