[PATCH 5/6] dt-bindings: mfd: mc13xxx: add pwrbutton dt support
From: Alexander Kurz <hidden>
Date: 2025-08-17 10:23:00
Also in:
linux-devicetree, lkml
Subsystem:
multifunction devices (mfd), open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The mc13xxx series features two or three power buttons that may be used as input device. OF support will be added in a different commit. Add a short documentation for it according to the reference- and User- manuals of the mc13xxx series. Signed-off-by: Alexander Kurz <redacted> --- .../devicetree/bindings/mfd/mc13xxx.txt | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
index 8261ea73278a..3c7bad07858f 100644
--- a/Documentation/devicetree/bindings/mfd/mc13xxx.txt
+++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt@@ -24,6 +24,15 @@ Sub-nodes: Documentation/devicetree/bindings/leds/common.txt. - regulators : Contain the regulator nodes. The regulators are bound using their names as listed below with their registers and bits for enabling. +- pwrbuttons : Contains the onoff input button nodes. + - #address-cells: Must be 1. + - #size-cells: Must be 0. + - reg: Contains the BUTTON ID (see below) + - linux,code + - debounce-delay-value: debouncing selection of 0 (0ms), 1 (default 30ms), + 2(150ms) or 3 (750ms). + - active-low + - enable-reset MC13783 LED IDs: 0 : Main display
@@ -110,6 +119,20 @@ MC13892 regulators: The bindings details of individual regulator device can be found in: Documentation/devicetree/bindings/regulator/regulator.txt +MC13783 BUTTON IDs: + 0 : ONOFD1 + 1 : ONOFD2 + 2 : ONOFD3 + +MC13892 BUTTON IDs: + 0 : PWRON1 + 1 : PWRON2 + 2 : <not supported> + +MC34708 BUTTON IDs: + 0 : PWRON1 + 1 : PWRON2 + Examples: ecspi@70010000 { /* ECSPI1 */
@@ -152,5 +175,17 @@ ecspi@70010000 { /* ECSPI1 */ regulator-always-on; }; }; + + pwrbuttons { + #address-cells = <1>; + #size-cells = <0>; + pwrbutton@0 { + reg = <0>; + linux,code = <KEY_POWER>; + debounce-delay-value = <2>; + active-low; + enable-reset; + }; + }; }; };
--
2.39.5