[PATCH v8 2/6] dt-bindings: leds: issi,is31fl32xx: add support for is31fl3236a
From: Jun Yan <hidden>
Date: 2026-06-07 15:20:27
Also in:
linux-leds, lkml
Subsystem:
led subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Pavel Machek, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add an additional and optional control property for setting the output PWM frequency to 22kHz that exists on is31fl3236a. The default is 3kHz and this option puts the operational frequency outside of the audible range. Co-developed-by: Pawel Zalewski <redacted> Signed-off-by: Pawel Zalewski <redacted> Signed-off-by: Jun Yan <redacted> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> --- .../bindings/leds/issi,is31fl32xx.yaml | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/issi,is31fl32xx.yaml b/Documentation/devicetree/bindings/leds/issi,is31fl32xx.yaml
index 81f1e30e493d..5f22d8b77edd 100644
--- a/Documentation/devicetree/bindings/leds/issi,is31fl32xx.yaml
+++ b/Documentation/devicetree/bindings/leds/issi,is31fl32xx.yaml@@ -21,6 +21,7 @@ description: | https://www.lumissil.com/assets/pdf/core/IS31FL3218_DS.pdf https://www.lumissil.com/assets/pdf/core/IS31FL3235_DS.pdf https://www.lumissil.com/assets/pdf/core/IS31FL3236_DS.pdf + https://www.lumissil.com/assets/pdf/core/IS31FL3236A_DS.pdf https://www.lumissil.com/assets/pdf/core/IS31FL3293_DS.pdf properties:
@@ -30,6 +31,7 @@ properties: - issi,is31fl3218 - issi,is31fl3235 - issi,is31fl3236 + - issi,is31fl3236a - issi,is31fl3293 - si-en,sn3216 - si-en,sn3218
@@ -37,6 +39,12 @@ properties: reg: maxItems: 1 + issi,22khz-pwm: + type: boolean + description: + When present, the chip's PWM will operate at ~22kHz as opposed + to ~3kHz to move the operating frequency out of the audible range. + "#address-cells": const: 1
@@ -60,6 +68,22 @@ patternProperties: - reg allOf: + - if: + properties: + compatible: + contains: + enum: + - issi,is31fl3216 + - issi,is31fl3218 + - issi,is31fl3235 + - issi,is31fl3236 + - issi,is31fl3293 + - si-en,sn3216 + - si-en,sn3218 + then: + properties: + issi,22khz-pwm: false + - if: properties: compatible:
--
2.54.0