From: Jan Kotas <jank@cadence.com>
Date: Tue, 22 Jan 2019 10:42:15 +0000 (+0000)
Subject: dt-bindings: rtc: Add bindings for Cadence RTC
X-Git-Tag: v5.1-rc1~105^2~47
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=1e47704e15f0907d2d8482ec939e3cb500bae558;p=linux-block.git

dt-bindings: rtc: Add bindings for Cadence RTC

This patch adds a DT binding documentation for
Cadence RTC controller.

Signed-off-by: Jan Kotas <jank@cadence.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---

diff --git a/Documentation/devicetree/bindings/rtc/cdns,rtc.txt b/Documentation/devicetree/bindings/rtc/cdns,rtc.txt
new file mode 100644
index 000000000000..14a04487b432
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/cdns,rtc.txt
@@ -0,0 +1,25 @@
+Cadence Real Time Clock
+
+The Cadence RTC controller with date, time and alarm capabilities.
+The alarm may wake the system from low-power state.
+
+Required properties:
+- compatible: Should be "cdns,rtc-r109v3"
+- reg: Specifies base physical address and size of the register area.
+- interrupts: A single interrupt specifier.
+- clocks: Must contain two entries:
+	- pclk: APB registers clock
+	- ref_clk: reference 1Hz or 100Hz clock, depending on IP configuration
+	See ../clocks/clock-bindings.txt for details.
+
+Example:
+        rtc0: rtc@fd080000 {
+        	compatible = "cdns,rtc-r109v3";
+        	reg = <0xfd080000 0x1000>;
+
+        	clock-names = "pclk", "ref_clk";
+        	clocks = <&sysclock>, <&refclock>;
+
+        	interrupt-parent = <&gic>;
+        	interrupts = <0 6 IRQ_TYPE_LEVEL_HIGH>;
+        };