linux-kernel - Re: [PATCH 1/1] mfd: intel_quark_i2c_gpio: Add Intel Quark X1000 I2C-GPIO MFD Driver

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Message-ID: <1415092249.472.5.camel@intel.com>
Date:	Tue, 4 Nov 2014 09:10:48 +0000
From:	"Shevchenko, Andriy" <andriy.shevchenko@...el.com>
To:	"pure.logic@...us-software.ie" <pure.logic@...us-software.ie>
CC:	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Chen, Alvin" <alvin.chen@...el.com>,
	"lee.jones@...aro.org" <lee.jones@...aro.org>,
	"Tan, Raymond" <raymond.tan@...el.com>
Subject: Re: [PATCH 1/1] mfd: intel_quark_i2c_gpio: Add Intel Quark X1000
 I2C-GPIO MFD Driver

On Mon, 2014-11-03 at 09:43 +0000, Bryan O'Donoghue wrote:
> On 03/11/14 07:39, Raymond Tan wrote:
> > In Quark X1000, there's a single PCI device that provides both
> > an I2C controller and a GPIO controller. This MFD driver will
> > split the 2 devices for their respective drivers.
> >
> > This patch is based on Josef Ahmad's initial work for Quark enabling.
> 
> Hi Raymond.
> 
> I see support for interrupts on GPIO input has been dropped. In fact it 
> doesn't appear you have any IRQ support here at all.
> 
> Could you detail the reasons why ?

In general the MFD drivers are just dispatchers which split an original
compound device by its slices.

-- 
Andy Shevchenko <andriy.shevchenko@...el.com>
Intel Finland Oy
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