[OpenWrt-Devel] [PATCH 1/2] ralink: add FireWRT power button

[fl.service at t-firefly.com]

Dear John:
    We are using "self-lock power switch" . When the switch is pressed, the power will turn on . Original design is a physical switch . 
    But we want to unmount the sd card , usb device and the harddisk before the power off. So we add a detect pin to check the switch status and add a script to shutdown the power .
    The schematic like this :
    



Best Regards.
Jay Weng

Website:  www.t-firefly.com
E-mail:  fl.service at t-firefly.com
 
From: John Crispin
Date: 2015-03-22 04:36
To: wengbj
CC: openwrt-devel; linux.c; wbj; zxf; dxj
Subject: Re: [PATCH 1/2] ralink: add FireWRT power button
Hi
 
On 21/03/2015 06:06, wengbj wrote:
> Signed-off-by: wengbj <fl.service at t-firefly.com>
> ---
>  target/linux/ramips/dts/FIREWRT.dts |    5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/target/linux/ramips/dts/FIREWRT.dts b/target/linux/ramips/dts/FIREWRT.dts
> index 54f0e55..2b018e6 100644
> --- a/target/linux/ramips/dts/FIREWRT.dts
> +++ b/target/linux/ramips/dts/FIREWRT.dts
> @@ -103,6 +103,11 @@
>  gpios = <&gpio0 18 1>;
>  linux,code = <0x211>;
>  };
> + power {
> + label = "power";
> + gpios = <&gpio0 23 1>;
> + linux,code = <116>;
> + };
 
what kind of power button is this ? does the board have a gpio to toggle
the supply voltage ? if so please consider also adding a "gpio-poweroff"
node.
 
John
 
 
 
> 
};
>  
>  pinctrl {
> 
 
 
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