linux-kernel - [PATCH v2 1/4] venus: core: change clk enable and disable order in resume and suspend

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Date:   Wed, 16 Sep 2020 22:55:54 +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 v2 1/4] venus: core: change clk enable and disable order in resume and suspend

Currently video driver is voting after clk enable and un voting
before clk disable. Basically we should vote before clk enable
and un vote after clk disable.

Corrected this by changing the order of clk enable and clk disable.

Fixes: 7482a983d ("media: venus: redesign clocks and pm domains control")
Signed-off-by: Mansur Alisha Shaik <mansur@...eaurora.org>
---
Changes in V2:
- Added fixes tag

 drivers/media/platform/qcom/venus/core.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 6103aaf..52a3886 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -355,13 +355,16 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
+	if (pm_ops->core_power) {
+		ret = pm_ops->core_power(dev, POWER_OFF);
+		if (ret)
+			return ret;
+	}
+
 	ret = icc_set_bw(core->cpucfg_path, 0, 0);
 	if (ret)
 		return ret;
 
-	if (pm_ops->core_power)
-		ret = pm_ops->core_power(dev, POWER_OFF);
-
 	return ret;
 }
 
@@ -371,16 +374,16 @@ 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));
+	if (ret)
+		return ret;
+
 	if (pm_ops->core_power) {
 		ret = pm_ops->core_power(dev, POWER_ON);
 		if (ret)
 			return ret;
 	}
 
-	ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
-	if (ret)
-		return ret;
-
 	return hfi_core_resume(core, false);
 }
 
-- 
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