Add the DT bindings documentation for axg's FIFOs: TODDR and FRDDR.
Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
---
.../devicetree/bindings/sound/amlogic,axg-fifo.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
new file mode 100644
index 000000000000..3dfc2515e5c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
@@ -0,0 +1,23 @@
+* Amlogic Audio FIFO controllers
+
+Required properties:
+- compatible: 'amlogic,axg-toddr' or
+ 'amlogic,axg-frddr'
+- reg: physical base address of the controller and length of memory
+ mapped region.
+- interrupts: interrupt specifier for the fifo.
+- clocks: phandle to the fifo peripheral clock provided by the audio
+ clock controller.
+- resets: phandle to memory ARB line provided by the arb reset controller.
+- #sound-dai-cells: must be 0.
+
+Example of FRDDR A on the A113 SoC:
+
+frddr_a: audio-controller@1c0 {
+ compatible = "amlogic,axg-frddr";
+ reg = <0x0 0x1c0 0x0 0x1c>;
+ #sound-dai-cells = <0>;
+ interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
+ resets = <&arb AXG_ARB_FRDDR_A>;
+};
--
2.14.4
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