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

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Message-Id: <20170626223248.14199-7-f.fainelli@gmail.com>
Date:   Mon, 26 Jun 2017 15:32:46 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Florian Fainelli <f.fainelli@...il.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), Hauke Mehrtens <hauke@...ke-m.de>,
        Rafał Miłecki <zajec5@...il.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Markus Mayer <mmayer@...adcom.com>,
        Arnd Bergmann <arnd@...db.de>, Eric Anholt <eric@...olt.net>,
        Justin Chen <justinpopo6@...il.com>,
        Doug Berger <opendmb@...il.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list),
        linux-mips@...ux-mips.org (open list:BROADCOM BCM47XX MIPS ARCHITECTURE),
        linux-pm@...r.kernerl.org, "Rafael J. Wysocki" <rjw@...ysocki.net>
Subject: [PATCH 3/4] 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