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-rw-r--r--dts/Bindings/rtc/rtc-omap.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/dts/Bindings/rtc/rtc-omap.txt b/dts/Bindings/rtc/rtc-omap.txt
index 5a0f02d34..4ba4dbd34 100644
--- a/dts/Bindings/rtc/rtc-omap.txt
+++ b/dts/Bindings/rtc/rtc-omap.txt
@@ -5,11 +5,17 @@ Required properties:
- "ti,da830-rtc" - for RTC IP used similar to that on DA8xx SoC family.
- "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family.
This RTC IP has special WAKE-EN Register to enable
- Wakeup generation for event Alarm.
+ Wakeup generation for event Alarm. It can also be
+ used to control an external PMIC via the
+ pmic_power_en pin.
- reg: Address range of rtc register set
- interrupts: rtc timer, alarm interrupts in order
- interrupt-parent: phandle for the interrupt controller
+Optional properties:
+- system-power-controller: whether the rtc is controlling the system power
+ through pmic_power_en
+
Example:
rtc@1c23000 {
@@ -18,4 +24,5 @@ rtc@1c23000 {
interrupts = <19
19>;
interrupt-parent = <&intc>;
+ system-power-controller;
};