2020-09-16 20:30:02

by Mansur Alisha Shaik

[permalink] [raw]
Subject: [PATCH RESEND v2 0/4] Venus - change clk enable, disable order and change bw values

The intention of this patchset is to correct clock enable and disable
order and vote for venus-ebi and cpucfg paths with average bandwidth
instad of peak bandwidth since with current implementation we are seeing
clock related warning during XO-SD and suspend device while video playback

---
Resending as all patches not updated properly because
of some mailing issues.

Mansur Alisha Shaik (4):
venus: core: change clk enable and disable order in resume and suspend
venus: core: vote for video-mem path
venus: core: vote with average bandwidth and peak bandwidth as zero
venus: put dummy vote on video-mem path after last session release

drivers/media/platform/qcom/venus/core.c | 29 +++++++++++++++++++-------
drivers/media/platform/qcom/venus/pm_helpers.c | 3 +++
2 files changed, 25 insertions(+), 7 deletions(-)

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2020-09-16 20:30:02

by Mansur Alisha Shaik

[permalink] [raw]
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 <[email protected]>
---
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);
}

--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation