mirror of
https://github.com/torvalds/linux.git
synced 2026-04-18 14:53:58 -04:00
3d6a17fccc
Move several embedded controller bindings (like ChromeOS EC, Gateworks System Controller and Kontron sl28cpld Board Management) to new subdirectory "embedded-controller" matching their purpose. An embedded controller (EC) is a discrete component that contains a microcontroller (i.e. a small CPU running a small firmware without operating system) mounted into a larger computer system running a fully fledged operating system that needs to utilize the embedded controller as part of its operation. So far the EC bindings were split between "mfd" and "platform" directory. MFD name comes from Linux, not hardware, and "platform" is a bit too generic. Rename Gateworks GSC and Huawei Gaokun filenames to match compatible, as preferred for bindings. Acked-by: Michael Walle <mwalle@kernel.org> # for sl28cpld Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Link: https://lore.kernel.org/r/20250825081201.9775-2-krzysztof.kozlowski@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
58 lines
1.4 KiB
YAML
58 lines
1.4 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/pwm/google,cros-ec-pwm.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: PWM controlled by ChromeOS EC
|
|
|
|
maintainers:
|
|
- Thierry Reding <thierry.reding@gmail.com>
|
|
- '"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>'
|
|
|
|
description: |
|
|
Google's ChromeOS EC PWM is a simple PWM attached to the Embedded Controller
|
|
(EC) and controlled via a host-command interface.
|
|
An EC PWM node should be only found as a sub-node of the EC node (see
|
|
Documentation/devicetree/bindings/embedded-controller/google,cros-ec.yaml).
|
|
|
|
allOf:
|
|
- $ref: pwm.yaml#
|
|
|
|
properties:
|
|
compatible:
|
|
oneOf:
|
|
- description: PWM controlled using EC_PWM_TYPE_GENERIC channels.
|
|
items:
|
|
- const: google,cros-ec-pwm
|
|
- description: PWM controlled using CROS_EC_PWM_DT_<...> types.
|
|
items:
|
|
- const: google,cros-ec-pwm-type
|
|
|
|
"#pwm-cells":
|
|
description: The cell specifies the PWM index.
|
|
const: 1
|
|
|
|
required:
|
|
- compatible
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
spi {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
cros-ec@0 {
|
|
compatible = "google,cros-ec-spi";
|
|
reg = <0>;
|
|
interrupts = <101 0>;
|
|
|
|
cros_ec_pwm: pwm {
|
|
compatible = "google,cros-ec-pwm";
|
|
#pwm-cells = <1>;
|
|
};
|
|
};
|
|
};
|