linux-kernel - Re: [PATCH v3 0/9] ata: ahci_platform: support allwinner R40 AHCI

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Date:   Thu, 19 Jul 2018 02:16:42 +0200
From:   Simon Baatz <gmbnomis@...il.com>
To:     Corentin Labbe <clabbe@...libre.com>
Cc:     hdegoede@...hat.com, linux@...linux.org.uk, mark.rutland@....com,
        maxime.ripard@...e-electrons.com, robh+dt@...nel.org,
        tj@...nel.org, wens@...e.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-ide@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        thierry.reding@...il.com, icenowy@...c.io
Subject: Re: [PATCH v3 0/9] ata: ahci_platform: support allwinner R40 AHCI

Hi Corentin,

On Fri, Jul 13, 2018 at 11:02:57AM +0000, Corentin Labbe wrote:
> Hello
> 
> This patchset add support for allwinner R40 AHCI controller.
> 
> This controller need two regulator and one reset which is unsupported
> for the moment on ahci_platform.
> 
> So this patchset add support for reset and regulator for AHCI
> controller.
> It add also support for non-target regulator per SATA port.
> 
> The whole patchset is tested on sun8i-r40-bananapi-m2-ultra and
> on sun7i-a20-cubieboard2 which doesnt have any of the ressources added
> by this serie, so no regression should come with it.

I tested on sun8i-v40-bananapi-m2-berry (with an adapted device
tree).  I got it to work, but only if the U-Boot has support for AHCI
already (from the Banana Pi M2 Ultra support).  With an U-Boot that
hasn't, the system hangs at boot (probably when probing ahci-sunxi). 

Did you test this case on the M2 Ultra board?  (I think SATA should
work the same on both boards, but there may be subtle differences)

Perhaps I did not apply all necessary patches. I took this series and
your minor fixes series for ahci_platform.