target/linux/bcm27xx/patches-5.10/950-0493-overlays-i2c-rtc-Add-the-Dallas-DS1340.patch

   1 From fd478b369992e56665de3aabf0e19e24b5fa5e43 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Fri, 26 Feb 2021 14:19:00 +0000
   4 Subject: [PATCH] overlays: i2c-rtc: Add the Dallas DS1340
   5
   6 See: https://github.com/raspberrypi/linux/issues/4180
   7
   8 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
   9 ---
  10  arch/arm/boot/dts/overlays/README              |  2 ++
  11  arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 16 ++++++++++++++++
  12  2 files changed, 18 insertions(+)
  13
  14 --- a/arch/arm/boot/dts/overlays/README
  15 +++ b/arch/arm/boot/dts/overlays/README
  16 @@ -1311,6 +1311,8 @@ Params: abx80x                  Select o
  17
  18          ds1339                  Select the DS1339 device
  19
  20 +        ds1340                  Select the DS1340 device
  21 +
  22          ds3231                  Select the DS3231 device
  23
  24          m41t62                  Select the M41T62 device
  25 --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  26 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  27 @@ -231,6 +231,20 @@
  28                 };
  29         };
  30
  31 +       fragment@17 {
  32 +               target = <&i2cbus>;
  33 +               __dormant__ {
  34 +                       #address-cells = <1>;
  35 +                       #size-cells = <0>;
  36 +
  37 +                       ds1340: ds1340@68 {
  38 +                               compatible = "dallas,ds1340";
  39 +                               trickle-resistor-ohms = <0>;
  40 +                               reg = <0x68>;
  41 +                       };
  42 +               };
  43 +       };
  44 +
  45         frag100: fragment@100 {
  46                 target = <&i2c_arm>;
  47                 i2cbus: __overlay__ {
  48 @@ -242,6 +256,7 @@
  49                 abx80x = <0>,"+0";
  50                 ds1307 = <0>,"+1";
  51                 ds1339 = <0>,"+2";
  52 +               ds1340 = <0>,"+17";
  53                 ds3231 = <0>,"+3";
  54                 mcp7940x = <0>,"+4";
  55                 mcp7941x = <0>,"+5";
  56 @@ -273,6 +288,7 @@
  57                 trickle-diode-type = <&abx80x>,"abracon,tc-diode",
  58                                      <&rv1805>,"abracon,tc-diode";
  59                 trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
  60 +                                       <&ds1340>,"trickle-resistor-ohms:0",
  61                                         <&abx80x>,"abracon,tc-resistor:0",
  62                                         <&rv3028>,"trickle-resistor-ohms:0",
  63                                         <&rv1805>,"abracon,tc-resistor:0";