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

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Date:	Fri, 16 Nov 2012 17:47:53 +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] i2c / ACPI: add ACPI enumeration support

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;

Other than this the new code looks OK WRT this issue, thanks.

-- 
Jean Delvare
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