linux-kernel - Re: [PATCHv2 4/5] arm64: dts: allwinner: a64: Add pwm device

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Message-ID: <1d6ba3e9-e2e7-c121-dc6d-7d4b867316ab@arm.com>
Date:   Sun, 18 Mar 2018 13:51:04 +0000
From:   André Przywara <andre.przywara@....com>
To:     Rob Herring <robh@...nel.org>, Harald Geyer <harald@...ib.org>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Icenowy Zheng <icenowy@...c.io>,
        info@...mex.com
Subject: Re: [PATCHv2 4/5] arm64: dts: allwinner: a64: Add pwm device

On 18/03/18 12:52, Rob Herring wrote:
> On Thu, Mar 15, 2018 at 04:25:09PM +0000, Harald Geyer wrote:
>> This device is compatible with A13, so no new driver is needed.
>> A new compatible string is reserved in the binding documentation, to be
>> used together with the proper fall back. Tested on Teres-I.
>>
>> Signed-off-by: Harald Geyer <harald@...ib.org>
>> ---
>> changes since v1:
>>  * add and use an A64 specific compatible string
>>  * claim the full memory range
>>
>> I saw that Andre Przywara has been working on A64 pwm too and has
>> submitted some patches a few days ago. I think his patches are functionally
>> equivalent to this one here, but clean up things a bit and additionally
>> add support for r_pwm and thus are preferable. See:
>>
>> https://groups.google.com/forum/#!topic/linux-sunxi/hQFeteP591k
>>
>> I'm including my patch here mostly to have a consistent series for others
>> to test. OTOH you might merge the device tree changes here and pick up
>> the cleanup patches from him. Either way should work fine.
> 
> I would sync up with Andre and send out a combined series. Don't make 
> the maintainer(s) have to sort this out.

I have something ready, but need to test it. Will try to send an updated
series later tonight.

Thanks,
Andre.

> 
>>  Documentation/devicetree/bindings/pwm/pwm-sun4i.txt |  1 +
>>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi       | 14 ++++++++++++++
>>  2 files changed, 15 insertions(+)
> 
> Reviewed-by: Rob Herring <robh@...nel.org>
>