linux-kernel - Re: [PATCH V4 2/2] i2c-designware: Add Intel Baytrail PMIC I2C bus support

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Message-ID: <20150123141853.GA9592@katana>
Date:	Fri, 23 Jan 2015 15:18:53 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	"David E. Box" <david.e.box@...ux.intel.com>
Cc:	jdelvare@...e.de, arnd@...db.de, maxime.ripard@...e-electrons.com,
	dianders@...omium.org, u.kleine-koenig@...gutronix.de,
	laurent.pinchart+renesas@...asonboard.com,
	boris.brezillon@...e-electrons.com, maxime.coquelin@...com,
	andrew@...n.ch, sjg@...omium.org, markus.mayer@...aro.org,
	ch.naveen@...sung.com, jacob.jun.pan@...ux.intel.com,
	max.schwarz@...ine.de, mika.westerberg@...ux.intel.com,
	skuribay@...ox.com, Romain.Baeriswyl@...lis.com,
	wenkai.du@...el.com, christian.ruppert@...lis.com,
	alan@...ux.intel.com, linux-kernel@...r.kernel.org,
	linux-i2c@...r.kernel.org
Subject: Re: [PATCH V4 2/2] i2c-designware: Add Intel Baytrail PMIC I2C bus
 support


Mostly good, except one thing:

> +config I2C_DESIGNWARE_BAYTRAIL
> +	bool "Intel Baytrail I2C semaphore support"
> +	depends on I2C_DESIGNWARE_PLATFORM
> +	select IOSF_MBI

This needs some dependency on something Baytrail specific. Otherwise, it
causes lots of build errors:

With ARM allnoconfig, I can select this option but there are no headers
for iosf.

With x86_64_defconfig and disabled ACPI, I can select this option but it
fails over "implicit declaration of function ‘acpi_evaluate_integer’".

An incremental patch will do for me, the rest looks good.


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