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-rw-r--r--Documentation/devicetree/bindings/sound/rt5514.txt13
1 files changed, 9 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5514.txt b/Documentation/devicetree/bindings/sound/rt5514.txt
index 929ca6756b02..4f33b0d96afe 100644
--- a/Documentation/devicetree/bindings/sound/rt5514.txt
+++ b/Documentation/devicetree/bindings/sound/rt5514.txt
@@ -1,22 +1,27 @@
RT5514 audio CODEC
-This device supports I2C only.
+This device supports both I2C and SPI.
Required properties:
- compatible : "realtek,rt5514".
-- reg : The I2C address of the device.
+- reg : the I2C address of the device for I2C, the chip select
+ number for SPI.
Optional properties:
- clocks: The phandle of the master clock to the CODEC
- clock-names: Should be "mclk"
+- interrupt-parent: The phandle for the interrupt controller.
+- interrupts: The interrupt number to the cpu. The interrupt specifier format
+ depends on the interrupt controller.
+
- realtek,dmic-init-delay-ms
- Set the DMIC initial delay (ms) to wait it ready.
+ Set the DMIC initial delay (ms) to wait it ready for I2C.
-Pins on the device (for linking into audio routes) for RT5514:
+Pins on the device (for linking into audio routes) for I2C:
* DMIC1L
* DMIC1R