linux-kernel - Re: [PATCH 1/2] PM / Domains: Add GENPD_FLAG_SUSPEND

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Date:   Wed, 12 Aug 2020 19:06:26 +0530
From:   Sibi Sankar <sibis@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     bjorn.andersson@...aro.org, rjw@...ysocki.net,
        ulf.hansson@...aro.org, agross@...nel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, gregkh@...uxfoundation.org, pavel@....cz,
        len.brown@...el.com, rnayak@...eaurora.org, dianders@...omium.org,
        khilman@...nel.org
Subject: Re: [PATCH 1/2] PM / Domains: Add GENPD_FLAG_SUSPEND_ON flag

Hey Stephen,
Thanks for taking time to review the
series!

On 2020-08-12 03:08, Stephen Boyd wrote:
> Quoting Sibi Sankar (2020-08-11 12:02:51)
>> diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
>> index ee11502a575b0..3002a2d68936a 100644
>> --- a/include/linux/pm_domain.h
>> +++ b/include/linux/pm_domain.h
>> @@ -55,6 +55,10 @@
>>   *
>>   * GENPD_FLAG_RPM_ALWAYS_ON:   Instructs genpd to always keep the PM 
>> domain
>>   *                             powered on except for system suspend.
>> + *
>> + * GENPD_FLAG_SUSPEND_ON:      Instructs genpd to keep the PM domain 
>> powered
>> + *                             on during suspend and runtime PM 
>> controlled
> 
> Maybe, "powered on across system suspend (if it is already powered on)"
> to match the hunk above that talks about system suspend for
> GENPD_FLAG_RPM_ALWAYS_ON. Otherwise someone may think that this powers
> on the genpd during suspend or powers it on during runtime suspend.

Sure, I'll add ^^ in the next re-spin.

> 
>> + *                             otherwise.
>>   */
>>  #define GENPD_FLAG_PM_CLK       (1U << 0)
>>  #define GENPD_FLAG_IRQ_SAFE     (1U << 1)

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