linux-kernel - Re: [PATCH] atmel_serial: update the powersave handler to match serial core

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Date:	Fri, 19 Sep 2008 15:33:44 +0000 (GMT)
From:	Michael Trimarchi <trimarchimichael@...oo.it>
To:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>,
	linux-serial@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Andrew Victor <linux@...im.org.za>,
	Anti Sullin <anti.sullin@...ecdesign.ee>,
	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
Subject: Re: [PATCH] atmel_serial: update the powersave handler to match serial core

Hi,




> +    /* we can not wake up if we're running on slow clock */
> +    atmel_port->may_wakeup = device_may_wakeup(&pdev->dev);
> +    if (atmel_serial_clk_will_stop())
> +        device_set_wakeup_enable(&pdev->dev, 0);
> +
This is not true, the wakeup in the slow clock is possible, configure the
input pin of the serial device as a gpio, and wake up on gpio. Then you
must reconfigure as a serial pin, and you can wake up on slow clock.

Regards Michael

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