linux-kernel - [PATCH 08/20] media: iris: Skip flush on first sequence change

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Message-ID: <20250408-iris-dec-hevc-vp9-v1-8-acd258778bd6@quicinc.com>
Date: Tue, 8 Apr 2025 21:24:22 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Vikash Garodia <quic_vgarodia@...cinc.com>,
        Abhinav Kumar
	<quic_abhinavk@...cinc.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        Hans Verkuil
	<hverkuil@...all.nl>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        "Dikshita
 Agarwal" <quic_dikshita@...cinc.com>
Subject: [PATCH 08/20] media: iris: Skip flush on first sequence change

Add a condition to skip the flush operation during the first sequence
change event. At this point, the capture queue is not streaming, making
the flush unnecessary.

Additionally, remove the reinit_completion call for the flush completion
signal, as it is not needed. This simplifies the code and avoids
unnecessary reinitialization.

Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
---
 drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
index ba858abab336..dfca45d85759 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
@@ -201,8 +201,7 @@ static void iris_hfi_gen1_event_seq_changed(struct iris_inst *inst,
 
 	iris_hfi_gen1_read_changed_params(inst, pkt);
 
-	if (inst->state != IRIS_INST_ERROR) {
-		reinit_completion(&inst->flush_completion);
+	if (inst->state != IRIS_INST_ERROR && !(inst->sub_state & IRIS_INST_SUB_FIRST_IPSC)) {
 
 		flush_pkt.shdr.hdr.size = sizeof(struct hfi_session_flush_pkt);
 		flush_pkt.shdr.hdr.pkt_type = HFI_CMD_SESSION_FLUSH;

-- 
2.34.1