linux-kernel - [PATCH v2] media: venus: flush all buffers in output plane streamoff

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Date: Wed, 10 Jan 2024 11:42:14 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Andy Gross <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Dikshita Agarwal <quic_dikshita@...cinc.com>
Subject: [PATCH v2] media: venus: flush all buffers in output plane streamoff

For scenarios, when source change is followed by VIDIOC_STREAMOFF
on output plane, driver should discard any queued OUTPUT
buffers, which are not decoded or dequeued.
Flush with HFI_FLUSH_INPUT does not have any actual impact.
So, fix it, by invoking HFI_FLUSH_ALL, which will flush all
queued buffers.

Fixes: 85872f861d4c ("media: venus: Mark last capture buffer")
Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
---
Changes since v1:
- Added fixes tag (Bryan)

 drivers/media/platform/qcom/venus/vdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 29130a9..0d2ab95 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -1255,7 +1255,7 @@ static int vdec_stop_output(struct venus_inst *inst)
 		break;
 	case VENUS_DEC_STATE_INIT:
 	case VENUS_DEC_STATE_CAPTURE_SETUP:
-		ret = hfi_session_flush(inst, HFI_FLUSH_INPUT, true);
+		ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
 		break;
 	default:
 		break;
-- 
2.7.4