openwrt/target/linux/brcm2708/patches-4.4/0437-overlays-Add-assert_falling_edge-to-pps-gpio-overlay.patch
Álvaro Fernández Rojas 2b1c6b21b5 brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y

Also adds support for Raspberry Pi Compute Module 3 (untested).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2016-09-10 14:54:26 +02:00

32 lines
1.1 KiB
Diff

From b90a1393b3bdffa88c8e8dfbdc2bec650a5f885e Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 9 Aug 2016 21:51:41 +0100
Subject: [PATCH] overlays: Add assert_falling_edge to pps-gpio overlay
See: https://github.com/raspberrypi/linux/issues/1590
---
arch/arm/boot/dts/overlays/README | 2 ++
arch/arm/boot/dts/overlays/pps-gpio-overlay.dts | 1 +
2 files changed, 3 insertions(+)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -797,6 +797,8 @@ Name: pps-gpio
Info: Configures the pps-gpio (pulse-per-second time signal via GPIO).
Load: dtoverlay=pps-gpio,<param>=<val>
Params: gpiopin Input GPIO (default "18")
+ assert_falling_edge When present, assert is indicated by a falling
+ edge, rather than by a rising edge
Name: pwm
--- a/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
@@ -30,5 +30,6 @@
__overrides__ {
gpiopin = <&pps>,"gpios:4",
<&pps_pins>,"brcm,pins:0";
+ assert_falling_edge = <&pps>,"assert-falling-edge?";
};
};