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Message-Id: <20170626211503.7471-2-f.fainelli@gmail.com>
Date: Mon, 26 Jun 2017 14:15:02 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Florian Fainelli <f.fainelli@...il.com>,
Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Brian Norris <computersforpeace@...il.com>,
Gregory Fong <gregory.0xf0@...il.com>,
bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM BCM7XXX ARM
ARCHITECTURE),
rtc-linux@...glegroups.com (open list:REAL TIME CLOCK (RTC) SUBSYSTEM),
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 1/2] dt-bindings: Document the Broadcom STB wake-up timer node
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@...nel.org>
Signed-off-by: Florian Fainelli <f.fainelli@...il.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@...11580 {
+ compatible = "brcm,brcmstb-waketimer";
+ reg = <0xf0411580 0x14>;
+ interrupts = <0x3>;
+ interrupt-parent = <&aon_pm_l2_intc>;
+ clocks = <&upg_fixed>;
+};
--
2.9.3
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