Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / rtc / nxp,rtc-2123.txt

diff --git a/kernel/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt b/kernel/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt
new file mode 100644 (file)
index 0000000..5cbc0b1
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt
@@ -0,0 +1,16 @@
+NXP PCF2123 SPI Real Time Clock
+
+Required properties:
+- compatible: should be: "nxp,rtc-pcf2123"
+- reg: should be the SPI slave chipselect address
+
+Optional properties:
+- spi-cs-high: PCF2123 needs chipselect high
+
+Example:
+
+rtc: nxp,rtc-pcf2123@3 {
+       compatible = "nxp,rtc-pcf2123"
+       reg = <3>
+       spi-cs-high;
+};