linux-kernel - Re: [PATCH v2 0/8] mfd: introduce a driver for LPSS devices on SPT

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Message-ID: <CAHp75Vej=LZpP3fBBaO56p4D6rN2w2h=8kSUQYW7OO62W5Cw3Q@mail.gmail.com>
Date:	Tue, 26 May 2015 09:51:37 +0300
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Lee Jones <lee.jones@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dmaengine <dmaengine@...r.kernel.org>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>
Subject: Re: [PATCH v2 0/8] mfd: introduce a driver for LPSS devices on SPT

On Tue, May 26, 2015 at 6:51 AM, Vinod Koul <vinod.koul@...el.com> wrote:
> On Mon, May 25, 2015 at 07:09:24PM +0300, Andy Shevchenko wrote:
>> The new coming Intel platforms such as Skylake will contain Sunrisepoint PCH.
>>
>> The driver is based on MFD framework since the main device, i.e. serial bus
>> controller, contains register space for itself, DMA part, and an additional
>> address space (convergence layer).
>>
>> The public specification of the register map is avaiable in [3].
> or [1]...?

You are correct!

>> This is second generation of the patch series to bring support LPSS devices
>> found on Intel Sunrisepoint (Intel Skylake PCH). First one can be found here
>> [2].
>>
>> The series has few logical parts:
>> - patches 1-3 prepares PM core, ACPI, and driver core (PM) to handle our case
>> - patches 4-6 introduce unregistering platform devices in MFD in reversed
>>   order
>> - patch 7 implements iDMA 64-bit driver
>> - patch 8 introduces an MFD driver for LPSS devices
>>
>> The patch 8 depends on clkdev_create() helper that has been introduced by
>> Russel King in [3].
>>
>> The driver has been tested with SPI and UART on Intel Skylake PCH.
>>
>> [1] https://download.01.org/future-platform-configuration-hub/skylake/register-definitions/332219_001_Final.pdf
>> [2] https://lkml.org/lkml/2015/3/31/255
>> [3] https://patchwork.linuxtv.org/patch/28464/

-- 
With Best Regards,
Andy Shevchenko
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