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authorFlorian Fainelli <f.fainelli@gmail.com>2017-06-27 00:15:02 +0300
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2017-06-27 00:46:53 +0300
commit3fde00a014ed1b0716a1d73fdebd96188e2ff6fe (patch)
tree9489c585622f39111e24e39e4b41d4059cb0d5cb /Documentation/devicetree/bindings/rtc
parentee0981be7704589635de23cc32556399c86653a8 (diff)
downloadlinux-3fde00a014ed1b0716a1d73fdebd96188e2ff6fe.tar.xz
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@kernel.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
-rw-r--r--Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt22
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diff --git a/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
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+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@f0411580 {
+ compatible = "brcm,brcmstb-waketimer";
+ reg = <0xf0411580 0x14>;
+ interrupts = <0x3>;
+ interrupt-parent = <&aon_pm_l2_intc>;
+ clocks = <&upg_fixed>;
+};