linux-kernel - Re: [PATCH v3 1/2] pwm: sunxi: Add Allwinner SoC PWM controller driver

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Date:   Mon, 15 Mar 2021 16:38:54 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     班涛 <fengzheng923@...il.com>
Cc:     thierry.reding@...il.com,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Lee Jones <lee.jones@...aro.org>,
        wens@...e.org, linux-kernel@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 1/2] pwm: sunxi: Add Allwinner SoC PWM controller
 driver

Hi!

On Mon, Mar 08, 2021 at 10:47:03AM +0800, 班涛 wrote:
> Maxime Ripard <maxime@...no.tech> 于2021年3月5日周五 上午12:07写道：
> 
> > Hi,
> >
> > On Tue, Mar 02, 2021 at 08:37:37PM +0800, Ban Tao wrote:
> > > From: Ban Tao <fengzheng923@...il.com>
> > >
> > > The Allwinner R818, A133, R329, V536 and V833 has a new PWM controller
> > > IP compared to the older Allwinner SoCs.
> > >
> > > Signed-off-by: Ban Tao <fengzheng923@...il.com>
> >
> > Thanks for sending an update.
> >
> > Like I said in the previous version though, without proper SoC support
> > upstream, that driver would effectively be dead code
> >
> 
> I'm not sure if the latest Linux code supports R818, A133, R329, V536 or
> V833,

It doesn't at the moment...

> But the driver supports most of the sun50i family of SoCs and some of the
> sun8i SoCs.
> Maybe I shouldn't submit this code right now...

... but if that driver can drive controllers found on other SoCs that we
support already, then you're very welcome to work on those first :)

Maxime

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