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 <Anson.Huang@xxxxxxx> > +++ 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
