Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 55 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/atmel-wm8904.txt b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
new file mode 100644
index 000000000..8bbe50c88
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
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+Atmel ASoC driver with wm8904 audio codec complex
+
+Required properties:
+  - compatible: "atmel,asoc-wm8904"
+  - atmel,model: The user-visible name of this sound complex.
+  - atmel,audio-routing: A list of the connections between audio components.
+    Each entry is a pair of strings, the first being the connection's sink,
+    the second being the connection's source. Valid names for sources and
+    sinks are the WM8904's pins, and the jacks on the board:
+
+    WM8904 pins:
+
+    * IN1L
+    * IN1R
+    * IN2L
+    * IN2R
+    * IN3L
+    * IN3R
+    * HPOUTL
+    * HPOUTR
+    * LINEOUTL
+    * LINEOUTR
+    * MICBIAS
+
+    Board connectors:
+
+    * Headphone Jack
+    * Line In Jack
+    * Mic
+
+  - atmel,ssc-controller: The phandle of the SSC controller
+  - atmel,audio-codec: The phandle of the WM8904 audio codec
+
+Optional properties:
+  - pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt
+
+Example:
+sound {
+	compatible = "atmel,asoc-wm8904";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pck0_as_mck>;
+
+	atmel,model = "wm8904 @ AT91SAM9N12EK";
+
+	atmel,audio-routing =
+		"Headphone Jack", "HPOUTL",
+		"Headphone Jack", "HPOUTR",
+		"IN2L", "Line In Jack",
+		"IN2R", "Line In Jack",
+		"Mic", "MICBIAS",
+		"IN1L", "Mic";
+
+	atmel,ssc-controller = <&ssc0>;
+	atmel,audio-codec = <&wm8904>;
+};