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-rw-r--r--Documentation/devicetree/bindings/sound/mvebu-audio.txt14
1 files changed, 13 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/mvebu-audio.txt b/Documentation/devicetree/bindings/sound/mvebu-audio.txt
index cb8c07c81ce4..4f5dec5cb3c2 100644
--- a/Documentation/devicetree/bindings/sound/mvebu-audio.txt
+++ b/Documentation/devicetree/bindings/sound/mvebu-audio.txt
@@ -6,9 +6,14 @@ Required properties:
"marvell,kirkwood-audio" for Kirkwood platforms
"marvell,dove-audio" for Dove platforms
"marvell,armada370-audio" for Armada 370 platforms
+ "marvell,armada-380-audio" for Armada 38x platforms
- reg: physical base address of the controller and length of memory mapped
- region.
+ region (named "i2s_regs").
+ With "marvell,armada-380-audio" two other regions are required:
+ first of those is dedicated for Audio PLL Configuration registers
+ (named "pll_regs") and the second one ("soc_ctrl") - for register
+ where one of exceptive I/O types (I2S or S/PDIF) is set.
- interrupts:
with "marvell,kirkwood-audio", the audio interrupt
@@ -23,6 +28,13 @@ Required properties:
"internal" for the internal clock
"extclk" for the external clock
+Optional properties:
+
+- spdif-mode:
+ Enable S/PDIF mode on Armada 38x SoC. Using this property
+ disables standard I2S I/O. Valid only with "marvell,armada-380-audio"
+ compatible string.
+
Example:
i2s1: audio-controller@b4000 {