* [PATCH 1/2] venus: core: change clk enable and disable order in resume and suspend
@ 2020-09-08 3:44 Mansur Alisha Shaik
2020-09-08 18:35 ` Stephen Boyd
0 siblings, 1 reply; 4+ messages in thread
From: Mansur Alisha Shaik @ 2020-09-08 3:44 UTC (permalink / raw)
To: linux-media, stanimir.varbanov
Cc: linux-kernel, linux-arm-msm, vgarodia, Mansur Alisha Shaik
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.
Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
---
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 c5af428..4857bbd 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -363,13 +363,16 @@ 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;
}
@@ -379,16 +382,16 @@ 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
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] venus: core: change clk enable and disable order in resume and suspend
2020-09-08 3:44 [PATCH 1/2] venus: core: change clk enable and disable order in resume and suspend Mansur Alisha Shaik
@ 2020-09-08 18:35 ` Stephen Boyd
2020-09-17 1:07 ` mansur
0 siblings, 1 reply; 4+ messages in thread
From: Stephen Boyd @ 2020-09-08 18:35 UTC (permalink / raw)
To: Mansur Alisha Shaik, linux-media, stanimir.varbanov
Cc: linux-kernel, linux-arm-msm, vgarodia, Mansur Alisha Shaik
Quoting Mansur Alisha Shaik (2020-09-07 20:44:05)
> 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.
>
> Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
> ---
Any 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 c5af428..4857bbd 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -363,13 +363,16 @@ 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;
Shouldn't we power it back up if this fails during suspend?
>
> - if (pm_ops->core_power)
> - ret = pm_ops->core_power(dev, POWER_OFF);
> -
> return ret;
> }
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] venus: core: change clk enable and disable order in resume and suspend
2020-09-08 18:35 ` Stephen Boyd
@ 2020-09-17 1:07 ` mansur
2020-09-17 7:18 ` Stephen Boyd
0 siblings, 1 reply; 4+ messages in thread
From: mansur @ 2020-09-17 1:07 UTC (permalink / raw)
To: Stephen Boyd
Cc: linux-media, stanimir.varbanov, linux-kernel, linux-arm-msm, vgarodia
> On 2020-09-09 00:05, Stephen Boyd wrote:
>> Quoting Mansur Alisha Shaik (2020-09-07 20:44:05)
>>> 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.
>>>
>>> Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
>>> ---
>>
>> Any Fixes: tag?
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 c5af428..4857bbd 100644
>>> --- a/drivers/media/platform/qcom/venus/core.c
>>> +++ b/drivers/media/platform/qcom/venus/core.c
>>> @@ -363,13 +363,16 @@ 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;
>>
>> Shouldn't we power it back up if this fails during suspend?
On icc_set_bw() failure, we are just power it and return.
Addressed these comments and posted new version
https://lore.kernel.org/patchwork/project/lkml/list/?series=463224
>>
>>>
>>> - if (pm_ops->core_power)
>>> - ret = pm_ops->core_power(dev, POWER_OFF);
>>> -
>>> return ret;
>>> }
>>>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] venus: core: change clk enable and disable order in resume and suspend
2020-09-17 1:07 ` mansur
@ 2020-09-17 7:18 ` Stephen Boyd
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Boyd @ 2020-09-17 7:18 UTC (permalink / raw)
To: mansur
Cc: linux-media, stanimir.varbanov, linux-kernel, linux-arm-msm, vgarodia
Quoting mansur@codeaurora.org (2020-09-16 18:07:44)
> > On 2020-09-09 00:05, Stephen Boyd wrote:
> >> Quoting Mansur Alisha Shaik (2020-09-07 20:44:05)
> >>> 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.
> >>>
> >>> Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
> >>> ---
> >>
> >> Any Fixes: tag?
> 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 c5af428..4857bbd 100644
> >>> --- a/drivers/media/platform/qcom/venus/core.c
> >>> +++ b/drivers/media/platform/qcom/venus/core.c
> >>> @@ -363,13 +363,16 @@ 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;
> >>
> >> Shouldn't we power it back up if this fails during suspend?
> On icc_set_bw() failure, we are just power it and return.
> Addressed these comments and posted new version
> https://lore.kernel.org/patchwork/project/lkml/list/?series=463224
Thanks. It's customary to Cc reviewers on patches, so please add me on
the next round of patches.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-09-08 3:44 [PATCH 1/2] venus: core: change clk enable and disable order in resume and suspend Mansur Alisha Shaik
2020-09-08 18:35 ` Stephen Boyd
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2020-09-17 7:18 ` Stephen Boyd
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