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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0038617132
Even though the binding claims that the frequency can go up to 6MHz, the common i2c binding sets a limit at 3MHz, which then triggers a warning. Since the only SoC that uses that bus uses a frequency of 100kHz, and that this bus hasn't been found in an SoC for something like 5 years, let's just fix the example to have a frequency within the acceptable range for i2c. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
66 lines
1.2 KiB
YAML
66 lines
1.2 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/i2c/allwinner,sun6i-a31-p2wi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner A31 P2WI (Push/Pull 2 Wires Interface) Device Tree Bindings
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Maxime Ripard <maxime.ripard@bootlin.com>
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allOf:
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- $ref: /schemas/i2c/i2c-controller.yaml#
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properties:
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compatible:
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const: allwinner,sun6i-a31-p2wi
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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resets:
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maxItems: 1
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clock-frequency:
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minimum: 1
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maximum: 6000000
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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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- resets
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# FIXME: We should set it, but it would report all the generic
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# properties as additional properties.
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# additionalProperties: false
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examples:
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- |
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i2c@1f03400 {
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compatible = "allwinner,sun6i-a31-p2wi";
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reg = <0x01f03400 0x400>;
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interrupts = <0 39 4>;
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clocks = <&apb0_gates 3>;
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clock-frequency = <100000>;
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resets = <&apb0_rst 3>;
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#address-cells = <1>;
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#size-cells = <0>;
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axp221: pmic@68 {
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compatible = "x-powers,axp221";
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reg = <0x68>;
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};
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};
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...
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