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Subject[PATCH v10] ASoC: rt5514: Add devicetree binding support for rt5514-spi
Add devicetree binding support for rt5514 spi dsp codec.

Also update rt5514 i2c dt-binding's compatible to distinguish it from
rt5514 spi.

Signed-off-by: Jeffy Chen <>

Changes in v10:
Put rt5514-i2c doc & rt5514-spi doc together.

Changes in v9:
Address comments from Brian.

Documentation/devicetree/bindings/sound/rt5514.txt | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/rt5514.txt b/Documentation/devicetree/bindings/sound/rt5514.txt
index 929ca6756b02..a4db31f72338 100644
--- a/Documentation/devicetree/bindings/sound/rt5514.txt
+++ b/Documentation/devicetree/bindings/sound/rt5514.txt
@@ -1,22 +1,28 @@
RT5514 audio CODEC

-This device supports I2C only.
+This device supports both I2C and SPI.

Required properties:

-- compatible : "realtek,rt5514".
+- compatible : "realtek,rt5514" or "realtek,rt5514", "realtek,rt5514-i2c" for
+ I2C or "realtek,rt5514", "realtek,rt5514-spi" for SPI.

-- 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:


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