openwrt/target/linux/bcm27xx/patches-4.19/950-0723-overlays-gpio-shutdown-Add-debounce-parameter.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

49 lines
1.7 KiB
Diff

From 499e28e3a38f0de843b07bf4bbf7692b07c5e3ba Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Mon, 7 Oct 2019 13:51:07 +0100
Subject: [PATCH] overlays: gpio-shutdown: Add debounce parameter
Give the gpio-shutdown overlay a debounce parameter that requires
the GPIO to be held at the relevant level for a specified number
of milliseconds. The default value is 100 - higher than the driver
default of 5ms to avoid unfortunate glitches.
See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=253680
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/README | 3 +++
arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts | 2 ++
2 files changed, 5 insertions(+)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -803,6 +803,9 @@ Params: gpio_pin GPIO pin
Note that the default pin (GPIO3) has an
external pullup.
+ debounce Specify the debounce interval in milliseconds
+ (default 100)
+
Name: hd44780-lcd
Info: Configures an HD44780 compatible LCD display. Uses 4 gpio pins for
--- a/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
+++ b/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
@@ -53,6 +53,7 @@
label = "shutdown";
linux,code = <116>; // KEY_POWER
gpios = <&gpio 3 1>;
+ debounce-interval = <100>; // ms
};
};
};
@@ -75,6 +76,7 @@
// Allow setting the active_low flag. 0 = active high, 1 = active low
active_low = <&button>,"gpios:8";
+ debounce = <&button>,"debounce-interval:0";
};
};