linux-kernel - Re: [PATCH v2 3/3 UPDATED] i2c / ACPI: add ACPI enumeration support

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Message-ID: <20121116191247.356c23a0@endymion.delvare>
Date:	Fri, 16 Nov 2012 19:12:47 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, ben-linux@...ff.org,
	w.sang@...gutronix.de, linux-kernel@...r.kernel.org,
	lenb@...nel.org, rafael.j.wysocki@...el.com,
	broonie@...nsource.wolfsonmicro.com, grant.likely@...retlab.ca,
	linus.walleij@...aro.org, bhelgaas@...gle.com,
	mathias.nyman@...ux.intel.com, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v2 3/3 UPDATED] i2c / ACPI: add ACPI enumeration support

On Fri, 16 Nov 2012 19:28:28 +0200, Mika Westerberg wrote:
> On Fri, Nov 16, 2012 at 05:47:53PM +0100, Jean Delvare wrote:
> > Hi Mika,
> > 
> > On Fri, 16 Nov 2012 17:23:32 +0200, Mika Westerberg wrote:
> > > Here's the updated version where we handle 10-bit addresses properly
> > > (hopefully).
> > > (...)
> > > +static int acpi_i2c_find_device(struct device *dev, acpi_handle *handle)
> > > +{
> > > (...)
> > > +	memset(&i2c_find, 0, sizeof(i2c_find));
> > > +	i2c_find.addr = client->addr;
> > > +	if (client->flags & I2C_CLIENT_TEN)
> > > +		i2c_find.access_mode = ACPI_I2C_10BIT_MODE;
> > 
> > This works because you are lucky and ACPI_I2C_7BIT_MODE has value 0,
> > but for correctness I'd rather add:
> > 
> > 	else
> > 		i2c_find.access_mode = ACPI_I2C_7BIT_MODE;
> 
> Right, sorry about that. The patch below should address this as well.
> (...)

Yes, looks good.

-- 
Jean Delvare
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