diff options
author | Neil Armstrong <narmstrong@baylibre.com> | 2020-06-08 11:17:35 +0200 |
---|---|---|
committer | Lee Jones <lee.jones@linaro.org> | 2020-06-18 11:23:16 +0100 |
commit | 6bcb330c1f373f314118f772c6e22f1cc36d7683 (patch) | |
tree | 9a5ee26a52b0d9a40fdb8aa79c08c5be239a7c98 /Documentation | |
parent | ad738ddd506b68679faf79277280b75522dd84e7 (diff) |
dt-bindings: mfd: Add Khadas Microcontroller bindings
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 <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/khadas,mcu.yaml | 44 |
1 files changed, 44 insertions, 0 deletions
diff --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>; + }; + }; |