From: Shuming Fan <shumingf@xxxxxxxxxxx>
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@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/sound/rt1011.txt | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/rt1011.txt b/Documentation/devicetree/bindings/sound/rt1011.txt
index 35a23e60d679..02d53b9aa247 100644
--- 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>;
};
--
2.23.0
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
