[PATCH 3/4] dt-bindings: Document the Broadcom STB wake-up timer node

Florian Fainelli
2017-06-26T22:32:46Z

Document the binding for the Broadcom STB SoCs wake-up timer node
allowing the system to generate alarms and exit low power states.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
.../bindings/rtc/brcm,brcmstb-waketimer.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt

diff --git a/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
new file mode 100644
index 000000000000..1d990bcc0baf
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
@@ -0,0 +1,22 @@
+Broadcom STB wake-up Timer
+
+The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
+ability to wake up the system from low-power suspend/standby modes.
+
+Required properties:
+- compatible : should contain "brcm,brcmstb-waketimer"
+- reg : the register start and length for the WKTMR block
+- interrupts : The TIMER interrupt
+- interrupt-parent: The phandle to the Always-On (AON) Power Management (PM) L2
+ interrupt controller node
+- clocks : The phandle to the UPG fixed clock (27Mhz domain)
+
+Example:
+
+waketimer at f0411580 {
+ compatible = "brcm,brcmstb-waketimer";
+ reg = <0xf0411580 0x14>;
+ interrupts = <0x3>;
+ interrupt-parent = <&aon_pm_l2_intc>;
+ clocks = <&upg_fixed>;
+};
--
2.9.3