From: Pawel Osciak <posciak@chromium.org>
Date: Wed, 16 Sep 2015 12:23:29 +0000 (+0900)
Subject: CHROMIUM: rk3288-vpu: Set use_dma_bidirectional=1 for decoder CAPTURE queue
X-Git-Tag: firefly_0821_release~2300
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f46a1068ae6f3bc2239f49c7cd08ad2a17d7eee9;p=firefly-linux-kernel-4.4.55.git

CHROMIUM: rk3288-vpu: Set use_dma_bidirectional=1 for decoder CAPTURE queue

This allows us to read out from decoded buffers to use them for reference
for decoding other frames.

Signed-off-by: Pawel Osciak <posciak@chromium.org>

BUG=chrome-os-partner:45346
TEST=video playback

Reviewed-on: https://chromium-review.googlesource.com/300727
Commit-Ready: Pawel Osciak <posciak@chromium.org>
Tested-by: Pawel Osciak <posciak@chromium.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Owen Lin <owenlin@chromium.org>

Change-Id: I454916b0862e541d1362413b29bfd3e51c8e3e6d
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
---

diff --git a/drivers/media/platform/rk3288-vpu/rk3288_vpu.c b/drivers/media/platform/rk3288-vpu/rk3288_vpu.c
index b5269e36e0a1..779513e2e267 100644
--- a/drivers/media/platform/rk3288-vpu/rk3288_vpu.c
+++ b/drivers/media/platform/rk3288-vpu/rk3288_vpu.c
@@ -391,10 +391,12 @@ static int rk3288_vpu_open(struct file *filp)
 	q->lock = &dev->vpu_mutex;
 	q->buf_struct_size = sizeof(struct rk3288_vpu_buf);
 
-	if (vdev == dev->vfd_enc)
+	if (vdev == dev->vfd_enc) {
 		q->ops = get_enc_queue_ops();
-	else if (vdev == dev->vfd_dec)
+	} else if (vdev == dev->vfd_dec) {
 		q->ops = get_dec_queue_ops();
+		q->use_dma_bidirectional = 1;
+	}
 
 	q->mem_ops = &vb2_dma_contig_memops;
 	q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;