From 67dd8e4c8ccf5d331960c7e936e5b03a9f92496d Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 28 Mar 2019 13:26:59 +0000 Subject: [PATCH] overlays: Add rv3028 to i2c-rtc See: https://github.com/raspberrypi/linux/issues/2912 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/README | 4 +++- .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 19 ++++++++++++++++++- 2 files changed, 21 insertions(+), 2 deletions(-) --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -939,6 +939,8 @@ Params: abx80x Select o pcf8563 Select the PCF8563 device + rv3028 Select the Micro Crystal RV3028 device + addr Sets the address for the RTC. Note that the device must be configured to use the specified address. @@ -947,7 +949,7 @@ Params: abx80x Select o "schottky" (ABx80x only) trickle-resistor-ohms Resistor value for trickle charge (DS1339, - ABx80x) + ABx80x, RV3028) wakeup-source Specify that the RTC can be used as a wakeup source --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts @@ -158,6 +158,21 @@ }; }; + fragment@10 { + target = <&i2c_arm>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + rv3028: rv3028@52 { + compatible = "microcrystal,rv3028"; + reg = <0x52>; + status = "okay"; + }; + }; + }; + __overrides__ { abx80x = <0>,"+0"; ds1307 = <0>,"+1"; @@ -169,6 +184,7 @@ pcf8523 = <0>,"+7"; pcf8563 = <0>,"+8"; m41t62 = <0>,"+9"; + rv3028 = <0>,"+10"; addr = <&abx80x>, "reg:0", <&ds1307>, "reg:0", @@ -182,7 +198,8 @@ <&m41t62>, "reg:0"; trickle-diode-type = <&abx80x>,"abracon,tc-diode"; trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0", - <&abx80x>,"abracon,tc-resistor"; + <&abx80x>,"abracon,tc-resistor", + <&rv3028>,"trickle-resistor-ohms:0"; wakeup-source = <&ds1339>,"wakeup-source?", <&ds3231>,"wakeup-source?", <&mcp7940x>,"wakeup-source?",