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-rw-r--r--arch/arm/boot/dts/allwinner/sun8i-h2-plus-orangepi-zero.dts14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/allwinner/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/allwinner/sun8i-h2-plus-orangepi-zero.dts
index 1b001f2ad0ef..b23cec5b89eb 100644
--- a/arch/arm/boot/dts/allwinner/sun8i-h2-plus-orangepi-zero.dts
+++ b/arch/arm/boot/dts/allwinner/sun8i-h2-plus-orangepi-zero.dts
@@ -112,6 +112,20 @@
};
};
+/*
+ * Audio input/output is exposed on the 13-pin header and can't be used for
+ * anything else. However, adapter boards may use different audio routing.
+ * - https://linux-sunxi.org/Xunlong_Orange_Pi_Zero#Expansion_Port
+ * - Allwinner H3 Datasheet, section 3.1. Pin Characteristics
+ */
+&codec {
+ allwinner,audio-routing =
+ "Line Out", "LINEOUT",
+ "MIC1", "Mic",
+ "Mic", "MBIAS";
+ status = "disabled";
+};
+
&cpu0 {
cpu-supply = <&reg_vdd_cpux>;
};