linux-kernel - Re: [PATCH] firmware: arm_scmi: power

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Message-ID: <Zh58F_TuQMO-swOU@pluto>
Date: Tue, 16 Apr 2024 14:24:39 +0100
From: Cristian Marussi <cristian.marussi@....com>
To: Peng Fan <peng.fan@....com>
Cc: "Peng Fan (OSS)" <peng.fan@....nxp.com>,
	"sudeep.holla@....com" <sudeep.holla@....com>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] firmware: arm_scmi: power_control: support suspend
 command

On Tue, Apr 16, 2024 at 12:34:14PM +0000, Peng Fan wrote:
> > Subject: Re: [PATCH] firmware: arm_scmi: power_control: support suspend
> > command
> > 
> > On Tue, Apr 16, 2024 at 07:01:42AM +0000, Peng Fan wrote:
> > > Hi Cristian,
> > >
> > 
> > Hi,

Hi,

> > 
> > > > Subject: Re: [PATCH] firmware: arm_scmi: power_control: support
> > > > suspend command
> > > >
> > > > On Mon, Apr 15, 2024 at 06:11:41PM +0800, Peng Fan (OSS) wrote:
> > > > > From: Peng Fan <peng.fan@....com>
> > > > >
> > > > > Support System suspend notification. Using a work struct to call
> > > > > pm_suspend. There is no way to pass suspend level to pm_suspend,
> > > > > so use MEM as of now.

[snip]

> > But, as said, I dont think there is a way to trigger a userspace suspennd from
> > jernel like we do for shutdown/reboot...I'll try to investigate a bit more.
> 
> Thanks for helping.

. also

scmi_power_control.c:95: warning: Function parameter or struct member 'suspend_work' not described in 'scmi_syspower_conf'

Thanks,
Cristian