Re: [PATCH V2 2/2] ahci: add support for Hisilicon sata

From: Tejun Heo
Date: Wed Apr 16 2014 - 16:49:31 EST


Hello,

On Thu, Apr 10, 2014 at 01:24:28PM +0800, Kefeng Wang wrote:
> From: Kefeng Wang <kefeng.wang@xxxxxxxxxx>
>
> The hip04 SoC of hisilicon has an AHCI compliant SATA controller,
> and it is compliant with the ahci 1.3 and sata 3.0 specification.
>
> There is a wrong bit in HOST_CAP of hip04 sata controller, which
> enable unsupported feature of FBS, use AHCI_HFLAG_NO_FBS hflag to
> disable it.
>
> Cc: Hans de Geode <hdegoede@xxxxxxxxxx>
> Signed-off-by: Kefeng Wang <kefeng.wang@xxxxxxxxxx>
> @@ -54,8 +55,10 @@ static int ahci_probe(struct platform_device *pdev)
> if (rc)
> goto disable_resources;
> }
> + if (of_device_is_compatible(pdev->dev.of_node, "hisilicon,hisi-ahci"))
> + pi.private_data = (void *)AHCI_HFLAG_NO_FBS;

Hmmm.... this should work but looks a bit tedious and it could be
better to have a better mechanism to match devices to their
port_infos. Hans, can you please comment? If getting something more
structured is too much work, I can go with this but wanna find out
whether that's the case.

Thanks.

--
tejun
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