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

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Message-ID:
 <DU0PR04MB94178C0D3D26D0818C94B35088082@DU0PR04MB9417.eurprd04.prod.outlook.com>
Date: Tue, 16 Apr 2024 13:28:25 +0000
From: Peng Fan <peng.fan@....com>
To: Cristian Marussi <cristian.marussi@....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

> 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'

Oh. "@suspend_work: A worker used to trigger system suspend"

Thanks,
Peng.
> 
> Thanks,
> Cristian