ASoC: dt-bindings: rt1011: add r0 and temperature device property

Typically, the r0 (calibration data) and temperature were measured in the factory.
This information is written into the non-volatile area
where keeps data whether factory reset or OS update.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20191016115617.23213-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/rt1011.txt b/Documentation/devicetree/bindings/sound/rt1011.txt
index 35a23e60d67996c3ad183cb4148e967a581d840b..02d53b9aa247eac1e00405a70722ed4266cddcc9 100644 (file)
--- a/Documentation/devicetree/bindings/sound/rt1011.txt
+++ b/Documentation/devicetree/bindings/sound/rt1011.txt
@@ -20,6 +20,14 @@ Required properties:
         |     1     |    1     |   0x3b     |
         -------------------------------------
 
+Optional properties:
+
+- realtek,temperature_calib
+  u32. The temperature was measured while doing the calibration. Units: Celsius degree
+
+- realtek,r0_calib
+  u32. This is r0 calibration data which was measured in factory mode.
+
 Pins on the device (for linking into audio routes) for RT1011:
 
   * SPO
@@ -29,4 +37,6 @@ Example:
 rt1011: codec@38 {
        compatible = "realtek,rt1011";
        reg = <0x38>;
+       realtek,temperature_calib = <25>;
+       realtek,r0_calib = <0x224050>;
 };