Re: [PATCH] ata: ahci_brcm: Avoid clobbering SATA_TOP_CTRL_BUS_CTRL

[Tejun Heo]

On Fri, Dec 22, 2017 at 11:43:08AM -0800, Florian Fainelli wrote:
> We are doing a blind write to SATA_TOP_CTRL_BUS_CTRL to set the system
> endian, but in doing so, we are also overwriting other bits, such as the
> SATA_SCB_BURST_SIZE and SATA_FIFO_SIZE bits, which impact performance.
> Do a read/modify/write so we keep the default values.
> 
> While we are at it, we also greatly simplify the logic and just leave
> the NSP specific bit settings, instead of having a completely different
> sequence.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>

Applied to libata/for-4.16.

Thanks.

-- 
tejun