target/linux/brcm2708/patches-4.4/0377-BCM270X_DT-Make-i2c-gpio-usable-by-other-overlays.patch

   1 From 432f47525a7916c723a80679b608f9bc0b4375b0 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Mon, 6 Jun 2016 09:23:37 +0100
   4 Subject: [PATCH 377/381] BCM270X_DT: Make i2c-gpio usable by other overlays
   5
   6 Modify the i2c-gpio overlay to export symbol i2c-gpio for use by other
   7 overlays. Export the alias as well for good measure.
   8
   9 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
  10 ---
  11  arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 15 +++++++++++++++
  12  1 file changed, 15 insertions(+)
  13
  14 --- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
  15 +++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
  16 @@ -19,6 +19,21 @@
  17                         };
  18                 };
  19         };
  20 +
  21 +       fragment@1 {
  22 +               target-path = "/aliases";
  23 +               __overlay__ {
  24 +                       i2c_gpio = "/i2c@0";
  25 +               };
  26 +       };
  27 +
  28 +       fragment@2 {
  29 +               target-path = "/__symbols__";
  30 +               __overlay__ {
  31 +                       i2c_gpio = "/i2c@0";
  32 +               };
  33 +       };
  34 +
  35         __overrides__ {
  36                 i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
  37                 i2c_gpio_scl = <&i2c_gpio>,"gpios:16";