linux-kernel - Re: [PATCH v1 19/23] pmdomain: imx: gpcv2: Discard pm_runtime

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Message-ID: <aUqSzEyuPgzPyrKo@shlinux89>
Date: Tue, 23 Dec 2025 21:02:04 +0800
From: Peng Fan <peng.fan@....nxp.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Linux PM <linux-pm@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Brian Norris <briannorris@...omium.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, imx@...ts.linux.dev
Subject: Re: [PATCH v1 19/23] pmdomain: imx: gpcv2: Discard pm_runtime_put()
 return value

On Mon, Dec 22, 2025 at 09:29:41PM +0100, Rafael J. Wysocki wrote:
>From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
>Passing pm_runtime_put() return value to the callers is not particularly
>useful.
>
>Returning an error code from pm_runtime_put() merely means that it has
>not queued up a work item to check whether or not the device can be
>suspended and there are many perfectly valid situations in which that
>can happen, like after writing "on" to the devices' runtime PM "control"
>attribute in sysfs for one example.
>
>Accordingly, update imx_pgc_domain_suspend() to simply discard the
>return value of pm_runtime_put() and always return success to the
>caller.
>
>This will facilitate a planned change of the pm_runtime_put() return
>type to void in the future.
>
>Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Acked-by: Peng Fan <peng.fan@....com>