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

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Date:   Mon, 1 Apr 2019 08:30:49 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     megous@...ous.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

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

> +	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.

Maxime

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

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