ASoC: rt5640: Add the info of rt5639 to the binding document

The patch adds the info of rt5639 to the binding document.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/Documentation/devicetree/bindings/sound/rt5640.txt b/Documentation/devicetree/bindings/sound/rt5640.txt
index 068a1141b06f19de0f5206e97de40f0af6793812..bac4d9ac1edc8c45df26134e59c9537b1ce6b3af 100644 (file)
--- a/Documentation/devicetree/bindings/sound/rt5640.txt
+++ b/Documentation/devicetree/bindings/sound/rt5640.txt
@@ -1,10 +1,10 @@
-RT5640 audio CODEC
+RT5640/RT5639 audio CODEC
 
 This device supports I2C only.
 
 Required properties:
 
-- compatible : "realtek,rt5640".
+- compatible : One of "realtek,rt5640" or "realtek,rt5639".
 
 - reg : The I2C address of the device.
 
@@ -18,7 +18,7 @@ Optional properties:
 
 - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
 
-Pins on the device (for linking into audio routes):
+Pins on the device (for linking into audio routes) for RT5639/RT5640:
 
   * DMIC1
   * DMIC2
@@ -31,13 +31,16 @@ Pins on the device (for linking into audio routes):
   * HPOR
   * LOUTL
   * LOUTR
-  * MONOP
-  * MONON
   * SPOLP
   * SPOLN
   * SPORP
   * SPORN
 
+Additional pins on the device for RT5640:
+
+  * MONOP
+  * MONON
+
 Example:
 
 rt5640 {