git.openwrt.org Git - openwrt/staging/ldir.git/blob

   1 From a2fdc7a590566d99d5261badeecb644664ff0fb3 Mon Sep 17 00:00:00 2001
   2 From: Phil Howard <phil@gadgetoid.com>
   3 Date: Fri, 29 Mar 2019 10:59:55 +0000
   4 Subject: [PATCH] overlays: Add rv3028 backup switchover support to
   5  i2c-rtc
   6
   7 Signed-off-by: Phil Howard <phil@pimoroni.com>
   8 ---
   9  arch/arm/boot/dts/overlays/README              | 3 +++
  10  arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 1 +
  11  2 files changed, 4 insertions(+)
  12
  13 --- a/arch/arm/boot/dts/overlays/README
  14 +++ b/arch/arm/boot/dts/overlays/README
  15 @@ -1013,6 +1013,9 @@ Params: abx80x                  Select o
  16          wakeup-source           Specify that the RTC can be used as a wakeup
  17                                  source
  18
  19 +        backup-switchover-mode  Backup power supply switch mode. Must be 0 for
  20 +                                off or 1 for Vdd < VBackup (RV3028 only)
  21 +
  22
  23  Name:   i2c-rtc-gpio
  24  Info:   Adds support for a number of I2C Real Time Clock devices
  25 --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  26 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  27 @@ -200,6 +200,7 @@
  28                 trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
  29                                         <&abx80x>,"abracon,tc-resistor",
  30                                         <&rv3028>,"trickle-resistor-ohms:0";
  31 +               backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
  32                 wakeup-source = <&ds1339>,"wakeup-source?",
  33                                 <&ds3231>,"wakeup-source?",
  34                                 <&mcp7940x>,"wakeup-source?",