linux-kernel - Re: [PATCH 2/2] soc: qcom: aoss: Use GENPD_FLAG_SUSPEND

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Date:   Tue, 11 Aug 2020 14:16:56 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Sibi Sankar <sibis@...eaurora.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Andy Gross <agross@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Pavel Machek <pavel@....cz>,
        "Brown, Len" <len.brown@...el.com>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Kevin Hilman <khilman@...nel.org>
Subject: Re: [PATCH 2/2] soc: qcom: aoss: Use GENPD_FLAG_SUSPEND_ON flag

Hi,

On Tue, Aug 11, 2020 at 12:03 PM Sibi Sankar <sibis@...eaurora.org> wrote:
>
> All the power domains exposed as part of AOSS QMP driver require to stay
> powered on for suspend. They are powered on when the remote processors
> boots up and powered off on remote processor crash/shutdown. Mark the
> power domains with GENPD_FLAG_SUSPEND_ON to model this behavior.
>
> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
> ---
>  drivers/soc/qcom/qcom_aoss.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
> index ed2c687c16b31..5a5b4bf928147 100644
> --- a/drivers/soc/qcom/qcom_aoss.c
> +++ b/drivers/soc/qcom/qcom_aoss.c
> @@ -366,6 +366,7 @@ static int qmp_pd_add(struct qmp *qmp)
>                 res[i].pd.name = sdm845_resources[i];
>                 res[i].pd.power_on = qmp_pd_power_on;
>                 res[i].pd.power_off = qmp_pd_power_off;
> +               res[i].pd.flags = GENPD_FLAG_SUSPEND_ON;

Reviewed-by: Douglas Anderson <dianders@...omium.org>
Tested-by: Douglas Anderson <dianders@...omium.org>

This makes my patch [1] unnecessary.

[1] https://lore.kernel.org/r/20200805091141.1.I86b3faaecb0d82997b599b1300f879606c71e116@changeid

-Doug