linux-kernel - [PATCH 2/2] venus: core: vote for video-mem icc path and change avg, peak bw

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Date:   Tue,  8 Sep 2020 09:14:38 +0530
From:   Mansur Alisha Shaik <mansur@...eaurora.org>
To:     linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org,
        Mansur Alisha Shaik <mansur@...eaurora.org>
Subject: [PATCH 2/2] venus: core: vote for video-mem icc path and change avg, peak bw

Currently we are voting for venus0-ebi path during buffer processing
with an average bandwidth of all the instances and unvoting during
session release.

While video streaming when we try to do XO-SD using the command
"echo mem > /sys/power/state command" , device is not entering
to suspend state and from interconnect summary seeing votes for venus0-ebi

Corrected this by voting for venus0-ebi path in venus_runtime_resume
and unvote during venus_runtime_suspend.

Signed-off-by: Mansur Alisha Shaik <mansur@...eaurora.org>
---
 drivers/media/platform/qcom/venus/core.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 4857bbd..79d8600 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -373,6 +373,10 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
+	ret = icc_set_bw(core->video_path, 0, 0);
+	if (ret)
+		return ret;
+
 	return ret;
 }
 
@@ -382,7 +386,11 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
 	const struct venus_pm_ops *pm_ops = core->pm_ops;
 	int ret;
 
-	ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
+	ret = icc_set_bw(core->video_path, kbps_to_icc(20000), 0);
+	if (ret)
+		return ret;
+
+	ret = icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0);
 	if (ret)
 		return ret;
 
-- 
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