linux-kernel - Re: [PATCH 3/3] serial: 8250: Add a wakeup

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Message-ID: <20120118221255.5c14f382@pyramind.ukuu.org.uk>
Date:	Wed, 18 Jan 2012 22:12:55 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Simon Glass <sjg@...omium.org>
Cc:	paulmck@...ux.vnet.ibm.com, LKML <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-serial@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [PATCH 3/3] serial: 8250: Add a wakeup_capable module param

> Let me provide a bit of context. The serial_core code seems to be the
> only place in the kernel that does this:
> 
> 		device_init_wakeup(tty_dev, 1);
> 		device_set_wakeup_enable(tty_dev, 0);
> 
> The first call makes the device wakeup capable and enables wakeup, The
> second call disabled wakeup.

> I assume we can't and shouldn't change device_init_wakeup() . We could
> add a call like device_init_wakeup_disabled() which makes the device
> wakeup capable but does not actually enable it. Does that work?

Is that not

	device_init_wakeup(tty_dev, 0)

or am I missing something ?
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