Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
MIME-Version: 1.0
References: <20181122102325.29495-1-wens@csie.org> <20181122102325.29495-2-wens@csie.org>
 <20181122153241.lzrwhkewg5q4hy2c@flea>
In-Reply-To: <20181122153241.lzrwhkewg5q4hy2c@flea>
From:   Chen-Yu Tsai <wens@csie.org>
Date:   Thu, 22 Nov 2018 23:41:57 +0800
Message-ID: <CAGb2v64-Wszg9m8+jCPWzYYRQduwpod2P0UdrFdhTLvAe3paPA@mail.gmail.com>
Subject: Re: [PATCH v9 1/8] ASoC: dt-bindings: sun50i-codec-analog: Add
 headphone amp regulator supply
To:     Maxime Ripard <maxime.ripard@bootlin.com>
Cc:     Mark Brown <broonie@kernel.org>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        devicetree <devicetree@vger.kernel.org>,
        Linux-ALSA <alsa-devel@alsa-project.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-sunxi@googlegroups.com,
        Vasily Khoruzhick <anarsoul@gmail.com>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Thu, Nov 22, 2018 at 11:33 PM Maxime Ripard
<maxime.ripard@bootlin.com> wrote:
>
> On Thu, Nov 22, 2018 at 06:23:18PM +0800, Chen-Yu Tsai wrote:
> > On the Allwinner A64 SoC, the audio codec has a built-in headphone
> > amplifier. This amplifier has a power supply separate from the rest of
> > the analog audio circuitry.
> >
> > Add a regulator supply property to handle this.
> >
> > Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> > ---
> >  Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt b/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt
> > index 4f8ad0e04d20..056a098495cc 100644
> > --- a/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt
> > +++ b/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt
> > @@ -4,9 +4,11 @@ Required properties:
> >  - compatible: must be one of the following compatibles:
> >               - "allwinner,sun50i-a64-codec-analog"
> >  - reg: must contain the registers location and length
> > +- cpvdd-supply: Regulator supply for the headphone amplifier
>
> I guess we should make this optional, since even if it's missing, it's
> going to create a dummy regulator. and that allows to have backward
> compatibility.
>
> For the rest of the series,
> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>

This one (not sun8i-codec-analog) is new for the next release, so there's
no backward compatibility to consider. Plus none of the device tree changes
for A64 have been merged.

ChenYu