linux-kernel - Re: [PATCH v1 3/3] dt-bindings: iio: accel: add dt-binding schema for msa311 accel driver

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Date:   Wed, 27 Apr 2022 08:58:45 +0000
From:   Dmitry Rokosov <DDRokosov@...rdevices.ru>
To:     Rob Herring <robh@...nel.org>
CC:     "stano.jakubek@...il.com" <stano.jakubek@...il.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "lars@...afoo.de" <lars@...afoo.de>,
        "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "stephan@...hold.net" <stephan@...hold.net>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        kernel <kernel@...rdevices.ru>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 3/3] dt-bindings: iio: accel: add dt-binding schema for
 msa311 accel driver

Hi Rob,

Thank you for review! I agree with all things you mentioned. It will be
fixed in the next v2 patchset.

On Tue, Apr 26, 2022 at 03:31:05PM -0500, Rob Herring wrote:
> On Tue, Apr 19, 2022 at 03:45:58PM +0000, Rokosov Dmitry Dmitrievich wrote:
> > Introduce devicetree binding json-schema for MSA311 tri-axial,
> > low-g accelerometer driver.
> > 
> > Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
> > ---
> >  .../bindings/iio/accel/memsensing,msa311.yaml      | 64 ++++++++++++++++++++++
> >  MAINTAINERS                                        |  1 +
> >  2 files changed, 65 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml b/Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml
> > new file mode 100644
> > index 00000000..3e4660f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml
> > @@ -0,0 +1,64 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +
> > +%YAML 1.2
> > +---
> > +$id: "http://devicetree.org/schemas/iio/accel/memsensing,msa311.yaml#"
> > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> > +
> > +title: MEMSensing digital 3-Axis accelerometer
> > +
> > +maintainers:
> > +  - Dmitry Rokosov <ddrokosov@...rdevices.ru>
> > +
> > +description: |
> > +  MSA311 is a tri-axial, low-g accelerometer with I2C digital output for
> > +  sensitivity consumer applications. It has dynamical user selectable full
> > +  scales range of +-2g/+-4g/+-8g/+-16g and allows acceleration measurements
> > +  with output data rates from 1Hz to 1000Hz.
> > +  Datasheet can be found at following URL
> > +  https://cdn-shop.adafruit.com/product-files/5309/MSA311-V1.1-ENG.pdf
> > +
> > +properties:
> > +  compatible:
> > +    const: memsensing,msa311
> > +
> 
> > +  "#address-cells":
> > +    const: 1
> > +
> > +  "#size-cells":
> > +    const: 0
> 
> These apply to 'reg' in a child node, but you don't have child nodes so 
> drop them.
> 

Ack

> > +
> > +  reg:
> > +    maxItems: 1
> > +    description: I2C registers address
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +    description: optional I2C int pin can be freely mapped to specific func
> > +
> > +  interrupt-names:
> > +    const: irq
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/gpio/gpio.h>
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +    i2c0 {
> 
> i2c {
> 

Ack

> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        msa311: msa311@62 {
> 
> accelerometer@62 {
> 

Ack

> > +            compatible = "memsensing,msa311";
> > +            reg = <0x62>;
> > +            interrupt-parent = <&gpio_intc>;
> > +            interrupts = <29 IRQ_TYPE_LEVEL_HIGH>;
> > +            interrupt-names = "irq";
> > +            status = "okay";
> > +        };
> > +    };
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index c75be17..4227914 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -12482,6 +12482,7 @@ MEMSENSING MICROSYSTEMS MSA311 ACCELEROMETER DRIVER
> >  M:	Dmitry Rokosov <ddrokosov@...rdevices.ru>
> >  L:	linux-iio@...r.kernel.org
> >  S:	Maintained
> > +F:	Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml
> >  F:	drivers/iio/accel/msa311.c
> >  
> >  MEN A21 WATCHDOG DRIVER
> > -- 
> > 2.9.5
> > 

-- 
Thank you,
Dmitry