[PATCH v9 1/5] dt-bindings: pwm: Add Apple PWM controller
flat view
STALE1323d
REVIEWED: 2 (0M)
From: Sasha Finkelstein via B4 Relay <devnull+fnkl.kernel.gmail.com@kernel.org>
Date: 2023-03-11 05:11:19
Also in:
asahi, b4-sent, linux-devicetree, linux-pwm, lkml
Subsystem:
arm/apple machine support, open firmware and flattened device tree bindings, pwm subsystem, the rest · Maintainers:
Sven Peter, Janne Grunau, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Uwe Kleine-König, Linus Torvalds
Revision v9 of 4 in this series; 2 review trailers.
Revisions (4)
- v7 [diff vs current]
- v8 [diff vs current]
- v9 current
- v9
From: Sasha Finkelstein <redacted> Apple SoCs such as the M1 contain a PWM controller used among other things to control the keyboard backlight. Signed-off-by: Sasha Finkelstein <redacted> Reviewed-by: Krzysztof Kozlowski <redacted> Acked-by: Sven Peter <redacted> --- .../devicetree/bindings/pwm/apple,s5l-fpwm.yaml | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml b/Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml
new file mode 100644
index 000000000000..142157bff0cd
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml@@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/apple,s5l-fpwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple FPWM controller + +maintainers: + - asahi@lists.linux.dev + - Sasha Finkelstein <fnkl.kernel@gmail.com> + +description: PWM controller used for keyboard backlight on ARM Macs + +properties: + compatible: + items: + - enum: + - apple,t8103-fpwm + - apple,t6000-fpwm + - apple,t8112-fpwm + - const: apple,s5l-fpwm + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + "#pwm-cells": + const: 2 + +required: + - compatible + - reg + - clocks + +additionalProperties: false + +examples: + - | + pwm@235044000 { + compatible = "apple,t8103-fpwm", "apple,s5l-fpwm"; + reg = <0x35044000 0x4000>; + power-domains = <&ps_fpwm1>; + clocks = <&clkref>; + #pwm-cells = <2>; + };
--
Git-137.1)
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