linux-kernel - Re: [PATCH 04/10] of/i2c: Add support for I2C_CLIENT

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Message-ID: <20121008073258.GA9707@gmail.com>
Date:	Mon, 8 Oct 2012 08:32:58 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Rob Herring <robherring2@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arnd@...db.de, linus.walleij@...ricsson.com,
	devicetree-discuss@...ts.ozlabs.org
Subject: Re: [PATCH 04/10] of/i2c: Add support for I2C_CLIENT_WAKE when
 booting with Device Tree

On Fri, 05 Oct 2012, Rob Herring wrote:

> On 10/05/2012 10:31 AM, Lee Jones wrote:
> > It's important for wakeup sources such as keyboards, power buttons
> > and the like to identify themselves as wakeup devices. Until now
> > this has not been possible when platforms are booting via Device
> > Tree.
> 
> A similar feature from Olof already went in for 3.7.

Ah yes, I see it. Thanks Rob.

> > Cc: Rob Herring <rob.herring@...xeda.com>
> > Cc: devicetree-discuss@...ts.ozlabs.org
> > Acked-by: Linus Walleij <linus.walleij@...aro.org>
> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >  drivers/of/of_i2c.c |    3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c
> > index 1e173f3..2f20019 100644
> > --- a/drivers/of/of_i2c.c
> > +++ b/drivers/of/of_i2c.c
> > @@ -61,6 +61,9 @@ void of_i2c_register_devices(struct i2c_adapter *adap)
> >  		info.of_node = of_node_get(node);
> >  		info.archdata = &dev_ad;
> >  
> > +		if (of_get_property(node, "i2c-client-wake", NULL))
> > +			info.flags |= I2C_CLIENT_WAKE;
> > +
> >  		request_module("%s%s", I2C_MODULE_PREFIX, info.type);
> >  
> >  		result = i2c_new_device(adap, &info);
> > 

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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