Files
linux_media/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
Rob Herring 0499220d6d dt-bindings: Add missing array size constraints
DT properties which can have multiple entries need to specify what the
entries are and define how many entries there can be. In the case of
only a single entry, just 'maxItems: 1' is sufficient.

Add the missing entry constraints. These were found with a modified
meta-schema. Unfortunately, there are a few cases where the size
constraints are not defined such as common bindings, so the meta-schema
can't be part of the normal checks.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210104230253.2805217-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2021-01-11 17:42:25 -06:00

87 lines
2.4 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/magnetometer/asahi-kasei,ak8975.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AsahiKASEI AK8975 magnetometer sensor
maintainers:
- Jonathan Albrieux <jonathan.albrieux@gmail.com>
properties:
compatible:
oneOf:
- enum:
- asahi-kasei,ak8975
- asahi-kasei,ak8963
- asahi-kasei,ak09911
- asahi-kasei,ak09912
- enum:
- ak8975
- ak8963
- ak09911
- ak09912
deprecated: true
reg:
maxItems: 1
gpios:
maxItems: 1
description: |
AK8975 has a "Data ready" pin (DRDY) which informs that data
is ready to be read and is possible to listen on it. If used,
this should be active high. Prefer interrupt over this.
interrupts:
maxItems: 1
description: interrupt for DRDY pin. Triggered on rising edge.
vdd-supply:
description: |
an optional regulator that needs to be on to provide VDD power to
the sensor.
mount-matrix:
description: an optional 3x3 mounting rotation matrix.
reset-gpios:
maxItems: 1
description: |
an optional pin needed for AK09911 to set the reset state. This should
be usually active low
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
magnetometer@c {
compatible = "asahi-kasei,ak8975";
reg = <0x0c>;
interrupt-parent = <&gpio6>;
interrupts = <15 IRQ_TYPE_EDGE_RISING>;
vdd-supply = <&ldo_3v3_gnss>;
reset-gpios = <&msmgpio 111 GPIO_ACTIVE_LOW>;
mount-matrix = "-0.984807753012208", /* x0 */
"0", /* y0 */
"-0.173648177666930", /* z0 */
"0", /* x1 */
"-1", /* y1 */
"0", /* z1 */
"-0.173648177666930", /* x2 */
"0", /* y2 */
"0.984807753012208"; /* z2 */
};
};