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

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Message-ID: <20210518172014.68f7a655@coco.lan>
Date:   Tue, 18 May 2021 17:20:14 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.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()

Em Mon, 17 May 2021 18:26:14 +0300
Stanimir Varbanov <stanimir.varbanov@...aro.org> escreveu:

> 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?

Whatever works best for you. In principle, I should apply them on my
tree probably tomorrow, if ok for you.

Regards,
Mauro

> 
> >>
> >> 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;
> >>  			}
> >>  		}
> >>  
> >   
> 



Thanks,
Mauro