summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorMark Brown <broonie@linaro.org>2013-08-22 15:28:28 +0200
committerMark Brown <broonie@linaro.org>2013-08-22 15:28:28 +0200
commit04877397afbdfeda4e073be710ce3f79f2912f16 (patch)
treee97db44d25953bf8626e106006caf6f7873b3cbe /Documentation
parentMerge remote-tracking branch 'asoc/topic/arizona' into asoc-next (diff)
parentASoC: atmel: update atmel SSC with DMA binding (diff)
downloadlinux-04877397afbdfeda4e073be710ce3f79f2912f16.tar.xz
linux-04877397afbdfeda4e073be710ce3f79f2912f16.zip
Merge remote-tracking branch 'asoc/topic/atmel' into asoc-next
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/misc/atmel-ssc.txt23
-rw-r--r--Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt35
-rw-r--r--Documentation/devicetree/bindings/sound/atmel-wm8904.txt55
-rw-r--r--Documentation/devicetree/bindings/sound/wm8731.txt9
4 files changed, 121 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
index 38e51ad2e07e..a45ae08c8ed1 100644
--- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt
+++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
@@ -7,9 +7,30 @@ Required properties:
- reg: Should contain SSC registers location and length
- interrupts: Should contain SSC interrupt
-Example:
+
+Required properties for devices compatible with "atmel,at91sam9g45-ssc":
+- dmas: DMA specifier, consisting of a phandle to DMA controller node,
+ the memory interface and SSC DMA channel ID (for tx and rx).
+ See Documentation/devicetree/bindings/dma/atmel-dma.txt for details.
+- dma-names: Must be "tx", "rx".
+
+Examples:
+- PDC transfer:
ssc0: ssc@fffbc000 {
compatible = "atmel,at91rm9200-ssc";
reg = <0xfffbc000 0x4000>;
interrupts = <14 4 5>;
};
+
+- DMA transfer:
+ssc0: ssc@f0010000 {
+ compatible = "atmel,at91sam9g45-ssc";
+ reg = <0xf0010000 0x4000>;
+ interrupts = <28 4 5>;
+ dmas = <&dma0 1 13>,
+ <&dma0 1 14>;
+ dma-names = "tx", "rx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>;
+ status = "disabled";
+};
diff --git a/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt b/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt
new file mode 100644
index 000000000000..0720857089a7
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt
@@ -0,0 +1,35 @@
+* Atmel at91sam9x5ek wm8731 audio complex
+
+Required properties:
+ - compatible: "atmel,sam9x5-wm8731-audio"
+ - atmel,model: The user-visible name of this sound complex.
+ - atmel,ssc-controller: The phandle of the SSC controller
+ - atmel,audio-codec: The phandle of the WM8731 audio codec
+ - 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.
+
+Available audio endpoints for the audio-routing table:
+
+Board connectors:
+ * Headphone Jack
+ * Line In Jack
+
+wm8731 pins:
+cf Documentation/devicetree/bindings/sound/wm8731.txt
+
+Example:
+sound {
+ compatible = "atmel,sam9x5-wm8731-audio";
+
+ atmel,model = "wm8731 @ AT91SAM9X5EK";
+
+ atmel,audio-routing =
+ "Headphone Jack", "RHPOUT",
+ "Headphone Jack", "LHPOUT",
+ "LLINEIN", "Line In Jack",
+ "RLINEIN", "Line In Jack";
+
+ atmel,ssc-controller = <&ssc0>;
+ atmel,audio-codec = <&wm8731>;
+};
diff --git a/Documentation/devicetree/bindings/sound/atmel-wm8904.txt b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
new file mode 100644
index 000000000000..8bbe50c884b6
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
@@ -0,0 +1,55 @@
+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>;
+};
diff --git a/Documentation/devicetree/bindings/sound/wm8731.txt b/Documentation/devicetree/bindings/sound/wm8731.txt
index 15f70048469b..236690e99b87 100644
--- a/Documentation/devicetree/bindings/sound/wm8731.txt
+++ b/Documentation/devicetree/bindings/sound/wm8731.txt
@@ -16,3 +16,12 @@ codec: wm8731@1a {
compatible = "wlf,wm8731";
reg = <0x1a>;
};
+
+Available audio endpoints for an audio-routing table:
+ * LOUT: Left Channel Line Output
+ * ROUT: Right Channel Line Output
+ * LHPOUT: Left Channel Headphone Output
+ * RHPOUT: Right Channel Headphone Output
+ * LLINEIN: Left Channel Line Input
+ * RLINEIN: Right Channel Line Input
+ * MICIN: Microphone Input