Re: [PATCH v2 1/6] dt-bindings: mfd: add Khadas Microcontroller bindings
From: Amit Kucheria <hidden>
Date: 2020-05-15 06:43:22
Also in:
linux-amlogic, linux-devicetree, linux-pm, lkml
On Tue, May 12, 2020 at 6:56 PM Neil Armstrong [off-list ref] wrote:
This Microcontroller is present on the Khadas VIM1, VIM2, VIM3 and Edge boards. It has multiple boot control features like password check, power-on options, power-off control and system FAN control on recent boards. Signed-off-by: Neil Armstrong <redacted> Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Amit Kucheria <redacted>
quoted hunk ↗ jump to hunk
--- .../devicetree/bindings/mfd/khadas,mcu.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/khadas,mcu.yamldiff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml new file mode 100644 index 000000000000..a3b976f101e8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml@@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/khadas,mcu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Khadas on-board Microcontroller Device Tree Bindings + +maintainers: + - Neil Armstrong <narmstrong@baylibre.com> + +description: | + Khadas embeds a microcontroller on their VIM and Edge boards adding some + system feature as PWM Fan control (for VIM2 rev14 or VIM3), User memory + storage, IR/Key resume control, system power LED control and more. + +properties: + compatible: + enum: + - khadas,mcu # MCU revision is discoverable + + "#cooling-cells": # Only needed for boards having FAN control feature + const: 2 + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + khadas_mcu: system-controller@18 { + compatible = "khadas,mcu"; + reg = <0x18>; + #cooling-cells = <2>; + }; + }; --2.22.0
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