linux-kernel - Re: [PATCH 2/7] ARM: dts: sun8i: tbs-a711: Add node for BMA250 accelerometer

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Message-ID: <20190401113433.z2dps2s5vszt37n7@core.my.home>
Date:   Mon, 1 Apr 2019 13:34:33 +0200
From:   Ondřej Jirman <megous@...ous.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     wens@...e.org, robh@...nel.org, johan@...nel.org,
        mark.rutland@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH 2/7] ARM: dts: sun8i: tbs-a711: Add node for BMA250
 accelerometer

Hello Maxime,

On Mon, Apr 01, 2019 at 08:30:49AM +0200, Maxime Ripard wrote:
> Hi,
> 
> On Wed, Mar 27, 2019 at 01:18:38AM +0100, megous@...ous.com wrote:
> > From: Ondrej Jirman <megous@...ous.com>
> >
> > A711 tablet has BMA250 accelerometer connected to I2C1 bus. Enable
> > both the I2C1 bus and add the accelerometer device to it.
> >
> > Signed-off-by: Ondrej Jirman <megous@...ous.com>
> > ---
> >  arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 15 +++++++++++++++
> >  1 file changed, 15 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
> > index 6aae70c89a1e..347fc0c31fa4 100644
> > --- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
> > +++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
> > @@ -156,6 +156,21 @@
> >  	status = "okay";
> >  };
> >
> > +&i2c1 {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&i2c1_pins>;
> 
> It's there already

I see, I'll drop it. Thanks.

> > +	clock-frequency = <400000>;
> > +	status = "okay";
> > +
> > +	/* Accelerometer */
> > +	bma250@18 {
> 
> The node name should be the class of the device, not its model, so
> something like accelerometer.

I'll rename this.

thank you,
  Ondrej

> Maxime
> 
> --
> Maxime Ripard, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com