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From: Lukasz Majewski <lukma@denx.de>
To: Fabio Estevam <festevam@gmail.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Russell King <linux@armlinux.org.uk>,
Rob Herring <robh+dt@kernel.org>,
Sascha Hauer <kernel@pengutronix.de>,
Fabio Estevam <fabio.estevam@nxp.com>,
Shawn Guo <shawnguo@kernel.org>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3] ARM: dts: tpc: Device tree description of the iMX6Q TPC board
Date: Thu, 5 Apr 2018 16:42:32 +0200 [thread overview]
Message-ID: <20180405164134.5ae71ea9@jawa> (raw)
In-Reply-To: <CAOMZO5DHtvX64oseDFsLGiYmQPcb3thUrGeLxX8dgp69vUNZMg@mail.gmail.com>
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Hi Fabio,
> Hi Lukasz,
>
> On Thu, Apr 5, 2018 at 4:09 AM, Lukasz Majewski <lukma@denx.de> wrote:
>
> > + reg_audio: regulator-audio {
> > + compatible = "regulator-fixed";
> > + regulator-name = "sgtl5000-supply";
> > + gpio = <&gpio6 31 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > + regulator-always-on;
> > + };
>
> sgtl5000 has 3 supplies: VDDD, VDDIO, VDDA.
>
> Which supply does this reg_audio supply to the chip?
It supplies none of the above. This regulator is needed to enable
amplifier output placed after sgtl5000 device.
>
> Can't you use any of the existing sgtl5000 regulator bindings to
> describe this supply?
As stated before - this supply enables the output of the amplifier.
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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next prev parent reply other threads:[~2018-04-05 14:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-05 7:09 Lukasz Majewski
2018-04-05 14:16 ` Fabio Estevam
2018-04-05 14:42 ` Lukasz Majewski [this message]
2018-04-05 15:02 ` Fabio Estevam
2018-04-10 10:37 ` [PATCH v4] " Lukasz Majewski
2018-04-10 20:32 ` [PATCH v5] " Lukasz Majewski
2018-04-18 3:55 ` Shawn Guo
2018-04-19 14:32 ` [PATCH v6] " Lukasz Majewski
2018-04-20 1:06 ` Rob Herring
2018-04-23 8:48 ` Shawn Guo
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