netdev - RE: [PATCH 3/3] usb: renesas_usbhs: Remove dummy runtime PM callbacks

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Date:   Fri, 26 Oct 2018 02:09:31 +0000
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     Wolfram Sang <wsa@...-dreams.de>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>
CC:     "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: [PATCH 3/3] usb: renesas_usbhs: Remove dummy runtime PM callbacks

Hi Wolfram-san,

> From: Wolfram Sang, Sent: Friday, October 26, 2018 7:58 AM
<snip>
> >  static const struct dev_pm_ops usbhsc_pm_ops = {
> >  	.suspend		= usbhsc_suspend,
> >  	.resume			= usbhsc_resume,
> 
> Unrelated to this patch, but I wonder right now: is there a reason not
> to use SET_SYSTEM_SLEEP_PM_OPS here? Shimoda-san?

I don't know why because this code is contributed from Morimoto-san.
I'm guessing this code seems to come from sh_eth.c or i2c-sh_mobile.c
and we don't have the SET_SYSTEM_SLEEP_PM_OPS macro at 2009.
Morimoto-san contributed this code at 2010, but it seems not to realize
we have such macro.

Anyway, I'll try to use SET_SYSTEM_SLEEP_PM_OPS on the renesas_usbhs driver.

Best regards,
Yoshihiro Shimoda