linux-kernel - Re: [PATCH v5 13/25] media: venus: core: use pm_runtime_resume_and

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Date:   Mon, 17 May 2021 18:26:14 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: Re: [PATCH v5 13/25] media: venus: core: use
 pm_runtime_resume_and_get()

Hi Mauro,

On 5/10/21 4:54 PM, Stanimir Varbanov wrote:
> 
> 
> On 5/6/21 6:25 PM, Mauro Carvalho Chehab wrote:
>> Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
>> added pm_runtime_resume_and_get() in order to automatically handle
>> dev->power.usage_count decrement on errors.
>>
>> Use the new API, in order to cleanup the error check logic.
>>
>> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
>> ---
>>  drivers/media/platform/qcom/venus/pm_helpers.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> Tested-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> Acked-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> 

What is the plan for these venus patches. Do I need to take them through
my Venus pull request for v5.14 or you will take them directly?

>>
>> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
>> index c7e1ebec47ee..d0fddf5e9a69 100644
>> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
>> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
>> @@ -990,9 +990,8 @@ static int core_power_v4(struct venus_core *core, int on)
>>  
>>  	if (on == POWER_ON) {
>>  		if (pmctrl) {
>> -			ret = pm_runtime_get_sync(pmctrl);
>> +			ret = pm_runtime_resume_and_get(pmctrl);
>>  			if (ret < 0) {
>> -				pm_runtime_put_noidle(pmctrl);
>>  				return ret;
>>  			}
>>  		}
>>
> 

-- 
regards,
Stan