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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
98 lines
1.9 KiB
YAML
98 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2019 BayLibre, SAS
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/spi/amlogic,meson-gx-spicc.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Amlogic Meson SPI Communication Controller
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maintainers:
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- Neil Armstrong <narmstrong@baylibre.com>
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allOf:
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- $ref: "spi-controller.yaml#"
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description: |
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The Meson SPICC is a generic SPI controller for general purpose Full-Duplex
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communications with dedicated 16 words RX/TX PIO FIFOs.
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properties:
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compatible:
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enum:
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- amlogic,meson-gx-spicc # SPICC controller on Amlogic GX and compatible SoCs
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- amlogic,meson-axg-spicc # SPICC controller on Amlogic AXG and compatible SoCs
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- amlogic,meson-g12a-spicc # SPICC controller on Amlogic G12A and compatible SoCs
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interrupts:
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maxItems: 1
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reg:
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maxItems: 1
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resets:
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maxItems: 1
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clocks:
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minItems: 1
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items:
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- description: controller register bus clock
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- description: baud rate generator and delay control clock
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clock-names:
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minItems: 1
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maxItems: 2
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if:
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properties:
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compatible:
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contains:
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enum:
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- amlogic,meson-g12a-spicc
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then:
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properties:
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clocks:
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minItems: 2
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clock-names:
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items:
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- const: core
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- const: pclk
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else:
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properties:
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: core
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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unevaluatedProperties: false
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examples:
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- |
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spi@c1108d80 {
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compatible = "amlogic,meson-gx-spicc";
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reg = <0xc1108d80 0x80>;
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interrupts = <112>;
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clocks = <&clk81>;
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clock-names = "core";
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#address-cells = <1>;
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#size-cells = <0>;
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display@0 {
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compatible = "lg,lg4573";
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spi-max-frequency = <1000000>;
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reg = <0>;
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};
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};
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