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Date:   Mon, 18 Sep 2017 09:05:35 +0800
From:   Jeffy Chen <>
        Jeffy Chen <>
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:
   * DMIC1L
   * DMIC1R

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