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