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- From da62b2064a19346529bf827e8d7fbbd76e5e7ead Mon Sep 17 00:00:00 2001
- From: Phil Elwell <phil@raspberrypi.org>
- Date: Wed, 23 Nov 2016 14:19:40 +0000
- Subject: [PATCH] config: Add ABX80X RTC driver and overlay
- Signed-off-by: Phil Elwell <phil@raspberrypi.org>
- ---
- arch/arm/boot/dts/overlays/README | 12 ++++++++++--
- arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 12 +++++++++++-
- arch/arm/configs/bcm2709_defconfig | 1 +
- arch/arm/configs/bcmrpi_defconfig | 1 +
- 4 files changed, 23 insertions(+), 3 deletions(-)
- --- a/arch/arm/boot/dts/overlays/README
- +++ b/arch/arm/boot/dts/overlays/README
- @@ -498,7 +498,11 @@ Params: addr I2C addr
- Name: i2c-rtc
- Info: Adds support for a number of I2C Real Time Clock devices
- Load: dtoverlay=i2c-rtc,<param>=<val>
- -Params: ds1307 Select the DS1307 device
- +Params: abx80x Select one of the ABx80x family:
- + AB0801, AB0803, AB0804, AB0805,
- + AB1801, AB1803, AB1804, AB1805
- +
- + ds1307 Select the DS1307 device
-
- ds1339 Select the DS1339 device
-
- @@ -514,7 +518,11 @@ Params: ds1307 Select t
-
- pcf8563 Select the PCF8563 device
-
- - trickle-resistor-ohms Resistor value for trickle charge (DS1339-only)
- + trickle-diode-type Diode type for trickle charge - "standard" or
- + "schottky" (ABx80x only)
- +
- + trickle-resistor-ohms Resistor value for trickle charge (DS1339,
- + ABx80x)
-
- 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
- @@ -12,6 +12,13 @@
- #size-cells = <0>;
- status = "okay";
-
- + abx80x: abx80x@69 {
- + compatible = "abracon,abx80x";
- + reg = <0x69>;
- + abracon,tc-diode = "standard";
- + abracon,tc-resistor = <0>;
- + status = "disable";
- + };
- ds1307: ds1307@68 {
- compatible = "maxim,ds1307";
- reg = <0x68>;
- @@ -56,6 +63,7 @@
- };
- };
- __overrides__ {
- + abx80x = <&abx80x>,"status";
- ds1307 = <&ds1307>,"status";
- ds1339 = <&ds1339>,"status";
- ds3231 = <&ds3231>,"status";
- @@ -64,7 +72,9 @@
- pcf2127 = <&pcf2127>,"status";
- pcf8523 = <&pcf8523>,"status";
- pcf8563 = <&pcf8563>,"status";
- - trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0";
- + trickle-diode-type = <&abx80x>,"abracon,tc-diode";
- + trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
- + <&abx80x>,"abracon,tc-resistor";
- wakeup-source = <&ds1339>,"wakeup-source?",
- <&ds3231>,"wakeup-source?",
- <&mcp7940x>,"wakeup-source?",
- --- a/arch/arm/configs/bcm2709_defconfig
- +++ b/arch/arm/configs/bcm2709_defconfig
- @@ -1060,6 +1060,7 @@ CONFIG_LEDS_TRIGGER_CAMERA=m
- CONFIG_LEDS_TRIGGER_INPUT=y
- CONFIG_RTC_CLASS=y
- # CONFIG_RTC_HCTOSYS is not set
- +CONFIG_RTC_DRV_ABX80X=m
- CONFIG_RTC_DRV_DS1307=m
- CONFIG_RTC_DRV_DS1374=m
- CONFIG_RTC_DRV_DS1672=m
- --- a/arch/arm/configs/bcmrpi_defconfig
- +++ b/arch/arm/configs/bcmrpi_defconfig
- @@ -1067,6 +1067,7 @@ CONFIG_LEDS_TRIGGER_CAMERA=m
- CONFIG_LEDS_TRIGGER_INPUT=y
- CONFIG_RTC_CLASS=y
- # CONFIG_RTC_HCTOSYS is not set
- +CONFIG_RTC_DRV_ABX80X=m
- CONFIG_RTC_DRV_DS1307=m
- CONFIG_RTC_DRV_DS1374=m
- CONFIG_RTC_DRV_DS1672=m
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