target/linux/brcm2708/patches-4.4/0436-overlays-Add-assert_falling_edge-to-pps-gpio-overlay.patch

   1 From c430f79020084981d8cfeaee85caa1ee243919b6 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Tue, 9 Aug 2016 21:51:41 +0100
   4 Subject: [PATCH] overlays: Add assert_falling_edge to pps-gpio overlay
   5
   6 See: https://github.com/raspberrypi/linux/issues/1590
   7 ---
   8  arch/arm/boot/dts/overlays/README               | 2 ++
   9  arch/arm/boot/dts/overlays/pps-gpio-overlay.dts | 1 +
  10  2 files changed, 3 insertions(+)
  11
  12 --- a/arch/arm/boot/dts/overlays/README
  13 +++ b/arch/arm/boot/dts/overlays/README
  14 @@ -797,6 +797,8 @@ Name:   pps-gpio
  15  Info:   Configures the pps-gpio (pulse-per-second time signal via GPIO).
  16  Load:   dtoverlay=pps-gpio,<param>=<val>
  17  Params: gpiopin                 Input GPIO (default "18")
  18 +        assert_falling_edge     When present, assert is indicated by a falling
  19 +                                edge, rather than by a rising edge
  20
  21
  22  Name:   pwm
  23 --- a/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
  24 +++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
  25 @@ -30,5 +30,6 @@
  26         __overrides__ {
  27                 gpiopin = <&pps>,"gpios:4",
  28                           <&pps_pins>,"brcm,pins:0";
  29 +               assert_falling_edge = <&pps>,"assert-falling-edge?";
  30         };
  31  };