[PATCH V3] AHCI: Workaround for ThunderX Errata#22536

[Tejun Heo]

On Tue, Feb 16, 2016 at 12:08:49PM -0800, tchalamarla at caviumnetworks.com wrote:
> From: Tirumalesh Chalamarla <tchalamarla at caviumnetworks.com>
> 
> Due to Errata in ThunderX, HOST_IRQ_STAT should be
> cleared before leaving the interrupt handler.
> The patch attempts to satisfy the need.
> 
> Changes from V2:
> 	- removed newfile
> 	- code is now under CONFIG_ARM64
> 
> Changes from V1:
> 	- Rebased on top of libata/for-4.6
>         - Moved ThunderX intr handler to new file
> 
> Signed-off-by: Tirumalesh Chalamarla <tchalamarla at caviumnetworks.com>

Applied to libata/for-4.5-fixes w/ minor adjustments to comments.

Thanks.

-- 
tejun