From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: Re: [PATCH 2/2] ACPI / LPSS: Deassert resets for SPI host
 controllers on Braswell
Date: Wed, 18 Feb 2015 18:13:03 +0200
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To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Yang A Fang <yang.a.fang@intel.com>, Yu Chen <yu.c.chen@intel.com>

On Wed, Feb 18, 2015 at 05:25:09PM +0100, Rafael J. Wysocki wrote:
> On Wednesday, February 18, 2015 01:50:17 PM Mika Westerberg wrote:
> > On some Braswell systems BIOS leaves resets for SPI host controllers
> > active. This prevents the SPI driver from transferring messages on wire.
> > 
> > Fix this in similar way that we do for I2C already by deasserting resets
> > for the SPI host controllers.
> > 
> > Reported-by: Yang A Fang <yang.a.fang@intel.com>
> > Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> 
> OK, so these two would need to go into "stable" I suppose?

Yes, if possible.

> What "stable" series we need them to go into?

Braswell support was added in v3.17 so I think from v3.17 onwards.