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35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
From a9b4f52e26299eb51f2615fb97214b45012ae59e Mon Sep 17 00:00:00 2001
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From: Phil Howard <phil@gadgetoid.com>
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Date: Fri, 29 Mar 2019 10:59:55 +0000
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Subject: [PATCH 424/782] overlays: Add rv3028 backup switchover support to
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i2c-rtc
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Signed-off-by: Phil Howard <phil@pimoroni.com>
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---
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arch/arm/boot/dts/overlays/README | 3 +++
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arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 1 +
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2 files changed, 4 insertions(+)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1013,6 +1013,9 @@ Params: abx80x Select o
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wakeup-source Specify that the RTC can be used as a wakeup
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source
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+ backup-switchover-mode Backup power supply switch mode. Must be 0 for
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+ off or 1 for Vdd < VBackup (RV3028 only)
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+
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Name: i2c-rtc-gpio
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Info: Adds support for a number of I2C Real Time Clock devices
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--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
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@@ -200,6 +200,7 @@
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trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
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<&abx80x>,"abracon,tc-resistor",
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<&rv3028>,"trickle-resistor-ohms:0";
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+ backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
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wakeup-source = <&ds1339>,"wakeup-source?",
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<&ds3231>,"wakeup-source?",
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<&mcp7940x>,"wakeup-source?",
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