linux-kernel - Re: [PATCH 1/2] pmdomain: ti-sci: set the GENPD_FLAG_ACTIVE

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Message-ID: <CAPDyKFroumouYavhaHp=aSh=0WsDO=_4kbVgS-+Y7CADyO-Kmg@mail.gmail.com>
Date: Wed, 9 Oct 2024 15:17:53 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Thomas Richard <thomas.richard@...tlin.com>
Cc: Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>, 
	Santosh Shilimkar <ssantosh@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Jiri Slaby <jirislaby@...nel.org>, linux-arm-kernel@...ts.infradead.org, 
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-serial@...r.kernel.org, u-kumar1@...com, tony@...mide.com, 
	khilman@...nel.org, gregory.clement@...tlin.com, thomas.petazzoni@...tlin.com, 
	theo.lebrun@...tlin.com, richard.genoud@...tlin.com
Subject: Re: [PATCH 1/2] pmdomain: ti-sci: set the GENPD_FLAG_ACTIVE_WAKEUP
 flag for all PM domains

On Tue, 8 Oct 2024 at 11:34, Thomas Richard <thomas.richard@...tlin.com> wrote:
>
> With this flag, if a device is marked on the wakeup path, the corresponding
> PM domain is kept powered on.

Perhaps extend this with some more information that it fixes a problem
for the uart console too?

>
> Suggested-by: Théo Lebrun <theo.lebrun@...tlin.com>
> Signed-off-by: Thomas Richard <thomas.richard@...tlin.com>

Should we add a stable/fixes tag?

Kind regards
Uffe

> ---
>  drivers/pmdomain/ti/ti_sci_pm_domains.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pmdomain/ti/ti_sci_pm_domains.c b/drivers/pmdomain/ti/ti_sci_pm_domains.c
> index 1510d5ddae3d..38448b4a035a 100644
> --- a/drivers/pmdomain/ti/ti_sci_pm_domains.c
> +++ b/drivers/pmdomain/ti/ti_sci_pm_domains.c
> @@ -186,6 +186,7 @@ static int ti_sci_pm_domain_probe(struct platform_device *pdev)
>
>                                 pd->pd.power_off = ti_sci_pd_power_off;
>                                 pd->pd.power_on = ti_sci_pd_power_on;
> +                               pd->pd.flags |= GENPD_FLAG_ACTIVE_WAKEUP;
>                                 pd->idx = args.args[0];
>                                 pd->parent = pd_provider;
>
>
> --
> 2.39.5
>