From fd478b369992e56665de3aabf0e19e24b5fa5e43 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 26 Feb 2021 14:19:00 +0000 Subject: [PATCH] overlays: i2c-rtc: Add the Dallas DS1340 See: https://github.com/raspberrypi/linux/issues/4180 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/README | 2 ++ arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 16 ++++++++++++++++ 2 files changed, 18 insertions(+) --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -1311,6 +1311,8 @@ Params: abx80x Select o ds1339 Select the DS1339 device + ds1340 Select the DS1340 device + ds3231 Select the DS3231 device m41t62 Select the M41T62 device --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts @@ -231,6 +231,20 @@ }; }; + fragment@17 { + target = <&i2cbus>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + ds1340: ds1340@68 { + compatible = "dallas,ds1340"; + trickle-resistor-ohms = <0>; + reg = <0x68>; + }; + }; + }; + frag100: fragment@100 { target = <&i2c_arm>; i2cbus: __overlay__ { @@ -242,6 +256,7 @@ abx80x = <0>,"+0"; ds1307 = <0>,"+1"; ds1339 = <0>,"+2"; + ds1340 = <0>,"+17"; ds3231 = <0>,"+3"; mcp7940x = <0>,"+4"; mcp7941x = <0>,"+5"; @@ -273,6 +288,7 @@ trickle-diode-type = <&abx80x>,"abracon,tc-diode", <&rv1805>,"abracon,tc-diode"; trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0", + <&ds1340>,"trickle-resistor-ohms:0", <&abx80x>,"abracon,tc-resistor:0", <&rv3028>,"trickle-resistor-ohms:0", <&rv1805>,"abracon,tc-resistor:0";