target/linux/brcm2708/patches-4.14/950-0247-added-capture_clear-option-to-pps-gpio-via-dtoverlay.patch

   1 From 61ad2796b48891e5a3e52d290cb51a44259b5799 Mon Sep 17 00:00:00 2001
   2 From: hdoverobinson <hdoverobinson@gmail.com>
   3 Date: Tue, 13 Mar 2018 06:58:39 -0400
   4 Subject: [PATCH 247/454] added capture_clear option to pps-gpio via dtoverlay
   5  (#2433)
   6
   7 ---
   8  arch/arm/boot/dts/overlays/README               | 5 ++++-
   9  arch/arm/boot/dts/overlays/pps-gpio-overlay.dts | 1 +
  10  drivers/pps/clients/pps-gpio.c                  | 3 +++
  11  3 files changed, 8 insertions(+), 1 deletion(-)
  12
  13 --- a/arch/arm/boot/dts/overlays/README
  14 +++ b/arch/arm/boot/dts/overlays/README
  15 @@ -1287,7 +1287,10 @@ Info:   Configures the pps-gpio (pulse-p
  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 +                                edge, rather than by a rising edge (default
  21 +                                off)
  22 +        capture_clear           Generate clear events on the trailing edge
  23 +                                (default off)
  24
  25
  26  Name:   pwm
  27 --- a/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
  28 +++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
  29 @@ -33,5 +33,6 @@
  30                           <&pps_pins>,"brcm,pins:0",
  31                           <&pps_pins>,"reg:0";
  32                 assert_falling_edge = <&pps>,"assert-falling-edge?";
  33 +               capture_clear = <&pps>,"capture-clear?";
  34         };
  35  };
  36 --- a/drivers/pps/clients/pps-gpio.c
  37 +++ b/drivers/pps/clients/pps-gpio.c
  38 @@ -119,6 +119,9 @@ static int pps_gpio_probe(struct platfor
  39
  40                 if (of_get_property(np, "assert-falling-edge", NULL))
  41                         data->assert_falling_edge = true;
  42 +
  43 +                if (of_get_property(np, "capture-clear", NULL))
  44 +                        data->capture_clear = true;
  45         }
  46
  47         /* GPIO setup */