target/linux/bcm27xx/patches-5.4/950-0981-overlays-Add-sd3078-to-the-i2c-rtc-overlay.patch

   1 From 8688b06ae53d6f60adcdcfe3d58ad7ef0ed7dba0 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Mon, 5 Oct 2020 16:10:26 +0100
   4 Subject: [PATCH] overlays: Add sd3078 to the i2c-rtc overlay
   5
   6 Add support for the SD3078 RTC to the i2c-rtc overlay.
   7
   8 See: https://github.com/raspberrypi/linux/issues/3881
   9
  10 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  11 ---
  12  arch/arm/boot/dts/overlays/README              |  2 ++
  13  arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 16 ++++++++++++++++
  14  2 files changed, 18 insertions(+)
  15
  16 --- a/arch/arm/boot/dts/overlays/README
  17 +++ b/arch/arm/boot/dts/overlays/README
  18 @@ -1232,6 +1232,8 @@ Params: abx80x                  Select o
  19
  20          rv3028                  Select the Micro Crystal RV3028 device
  21
  22 +        sd3078                  Select the ZXW Shenzhen whwave SD3078 device
  23 +
  24          addr                    Sets the address for the RTC. Note that the
  25                                  device must be configured to use the specified
  26                                  address.
  27 --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  28 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  29 @@ -220,6 +220,21 @@
  30                 };
  31         };
  32
  33 +       fragment@14 {
  34 +               target = <&i2c_arm>;
  35 +               __dormant__ {
  36 +                       #address-cells = <1>;
  37 +                       #size-cells = <0>;
  38 +                       status = "okay";
  39 +
  40 +                       sd3078: sd3078@32 {
  41 +                               compatible = "whwave,sd3078";
  42 +                               reg = <0x32>;
  43 +                               status = "okay";
  44 +                       };
  45 +               };
  46 +       };
  47 +
  48         __overrides__ {
  49                 abx80x = <0>,"+0";
  50                 ds1307 = <0>,"+1";
  51 @@ -235,6 +250,7 @@
  52                 pcf2129 = <0>,"+11";
  53                 pcf85363 = <0>,"+12";
  54                 rv1805 = <0>,"+13";
  55 +               sd3078 = <0>,"+14";
  56
  57                 addr = <&abx80x>, "reg:0",
  58                        <&ds1307>, "reg:0",