9a54ed5fa512cc700e4440f000955b74ad786243
[oweals/openwrt.git] /
1 From 918ce6082732828dd525c0a6a48e5232dadd4019 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 425/773] 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?",