diff options
author | Nikita Travkin <nikita@trvn.ru> | 2022-07-11 23:33:39 +0300 |
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committer | Thierry Reding <thierry.reding@gmail.com> | 2022-07-29 14:41:18 +0300 |
commit | c2252c181ab5d6d764e505143a55775187670543 (patch) | |
tree | 6bab6209a8cdc2f04435d181d42d5e4154e64b13 /Documentation/devicetree/bindings/pwm | |
parent | 2375e964d541bb09158cd2dff67b5d74e8de61cd (diff) | |
download | linux-c2252c181ab5d6d764e505143a55775187670543.tar.xz |
dt-bindings: pwm: Document clk based PWM controller
Add YAML devicetree binding for clk based PWM controller
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pwm')
-rw-r--r-- | Documentation/devicetree/bindings/pwm/clk-pwm.yaml | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/clk-pwm.yaml b/Documentation/devicetree/bindings/pwm/clk-pwm.yaml new file mode 100644 index 000000000000..ec1768291503 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/clk-pwm.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/clk-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Clock based PWM controller + +maintainers: + - Nikita Travkin <nikita@trvn.ru> + +description: | + Some systems have clocks that can be exposed to external devices. + (e.g. by muxing them to GPIO pins) + It's often possible to control duty-cycle of such clocks which makes them + suitable for generating PWM signal. + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + const: clk-pwm + + clocks: + description: Clock used to generate the signal. + maxItems: 1 + + "#pwm-cells": + const: 2 + +unevaluatedProperties: false + +required: + - compatible + - clocks + +examples: + - | + pwm { + compatible = "clk-pwm"; + #pwm-cells = <2>; + clocks = <&gcc 0>; + pinctrl-names = "default"; + pinctrl-0 = <&pwm_clk_flash_default>; + }; |