Re: [PATCH V2 1/5] dt-bindings: fsl: scu: add scu power key binding
From: Pavel Machek <hidden>
Date: 2019-09-22 16:14:11
Also in:
linux-arm-kernel, linux-devicetree, lkml
Hi!
NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as system controller, the system controller is in charge of system power, clock and power key event etc. management, Linux kernel has to communicate with system controller via MU (message unit) IPC to get power key event, add binding doc for i.MX system controller power key driver. Signed-off-by: Anson Huang <redacted>
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+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt@@ -157,6 +157,15 @@ Required properties: Optional properties: - timeout-sec: contains the watchdog timeout in seconds. +Power key bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible: should be: + "fsl,imx8qxp-sc-pwrkey" + followed by "fsl,imx-sc-pwrkey"; +- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
Actually there's no reason for having "linux,keycodes" property when it is always a power button. Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html