linux/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
Rob Herring 972d6a7dce dt-bindings: Drop redundant minItems/maxItems
If a property has an 'items' list, then a 'minItems' or 'maxItems' with the
same size as the list is redundant and can be dropped. Note that is DT
schema specific behavior and not standard json-schema behavior. The tooling
will fixup the final schema adding any unspecified minItems/maxItems.

This condition is partially checked with the meta-schema already, but
only if both 'minItems' and 'maxItems' are equal to the 'items' length.
An improved meta-schema is pending.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for MMC
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210615191543.1043414-1-robh@kernel.org
2021-06-21 13:56:46 -06:00

78 lines
1.6 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/mellanox,i2c-mlxbf.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Mellanox I2C SMBus on BlueField SoCs
maintainers:
- Khalil Blaiech <kblaiech@nvidia.com>
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
properties:
compatible:
enum:
- mellanox,i2c-mlxbf1
- mellanox,i2c-mlxbf2
reg:
minItems: 3
items:
- description: Smbus block registers
- description: Cause master registers
- description: Cause slave registers
- description: Cause coalesce registers
interrupts:
maxItems: 1
clock-frequency:
enum: [ 100000, 400000, 1000000 ]
description:
bus frequency used to configure timing registers;
The frequency is expressed in Hz. Default is 100000.
required:
- compatible
- reg
- interrupts
unevaluatedProperties: false
if:
properties:
compatible:
contains:
enum:
- mellanox,i2c-mlxbf1
then:
properties:
reg:
maxItems: 3
examples:
- |
i2c@2804000 {
compatible = "mellanox,i2c-mlxbf1";
reg = <0x02804000 0x800>,
<0x02801200 0x020>,
<0x02801260 0x020>;
interrupts = <57>;
clock-frequency = <100000>;
};
- |
i2c@2808800 {
compatible = "mellanox,i2c-mlxbf2";
reg = <0x02808800 0x600>,
<0x02808e00 0x020>,
<0x02808e20 0x020>,
<0x02808e40 0x010>;
interrupts = <57>;
clock-frequency = <400000>;
};