linux-kernel - [PATCH 1/3] [media] s5p-mfc: Add handling of buffer freeing reqbufs request

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Date:	Sat,  7 May 2016 13:05:24 +0800
From:	ayaka <ayaka@...lik.info>
To:	linux-kernel@...r.kernel.org
Cc:	m.szyprowski@...sung.com, nicolas.dufresne@...labora.com,
	shuahkh@....samsung.com, javier@....samsung.com,
	mchehab@....samsung.com, k.debski@...sung.com,
	jtp.park@...sung.com, kyungmin.park@...sung.com,
	linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
	ayaka <ayaka@...lik.info>
Subject: [PATCH 1/3] [media] s5p-mfc: Add handling of buffer freeing reqbufs request

The encoder forget the work to call hardware to release its buffers.
This patch came from chromium project. I just change its code
style and make the API match with new kernel.

Signed-off-by: ayaka <ayaka@...lik.info>
---
 drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
index 034b5c1..a66a9f9 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
@@ -1144,7 +1144,10 @@ static int vidioc_reqbufs(struct file *file, void *priv,
 		return -EINVAL;
 	if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 		if (reqbufs->count == 0) {
+			mfc_debug(2, "Freeing buffers\n");
 			ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+			s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers,
+					ctx);
 			ctx->capture_state = QUEUE_FREE;
 			return ret;
 		}
-- 
2.5.5