Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/ak4104.txt b/Documentation/devicetree/bindings/sound/ak4104.txt
new file mode 100644
index 000000000..ae5f7f057
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ak4104.txt
@@ -0,0 +1,25 @@
+AK4104 S/PDIF transmitter
+
+This device supports SPI mode only.
+
+Required properties:
+
+  - compatible : "asahi-kasei,ak4104"
+
+  - reg : The chip select number on the SPI bus
+
+  - vdd-supply : A regulator node, providing 2.7V - 3.6V
+
+Optional properties:
+
+  - reset-gpios : a GPIO spec for the reset pin. If specified, it will be
+		  deasserted before communication to the device starts.
+
+Example:
+
+spdif: ak4104@0 {
+	compatible = "asahi-kasei,ak4104";
+	reg = <0>;
+	spi-max-frequency = <5000000>;
+	vdd-supply = <&vdd_3v3_reg>;
+};