linux-kernel - [PATCH 3/4] ASoC: pxa: add binding for pxa2xx-ac97 audio complex

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Date:	Sat, 20 Feb 2016 15:37:58 +0100
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, alsa-devel@...a-project.org,
	patches@...nsource.wolfsonmicro.com
Subject: [PATCH 3/4] ASoC: pxa: add binding for pxa2xx-ac97 audio complex

This adds a binding for the Marvell PXA audio complex, available in
pxa2xx and pxa3xx variants.

Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
---
 .../bindings/sound/marvell,pxa2xx-ac97.txt         | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt

diff --git a/Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt b/Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt
new file mode 100644
index 000000000000..b3f2882d9c7d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt
@@ -0,0 +1,25 @@
+Marvell PXA2xx audio complex
+
+This descriptions matches the AC97 controller found in pxa2xx and pxa3xx series.
+
+Required properties:
+  - compatible: "marvell,pxa2xx-ac97"
+  - reg: device MMIO address space
+  - interrupts: single interrupt generated by AC97 IP
+  - clocks: input clock of the AC97 IP, refer to clock-bindings.txt
+
+Optional properties:
+  - pinctrl-names, pinctrl-0: refer to pinctrl-bindings.txt
+  - reset-gpio: gpio used for AC97 reset, refer to gpio.txt
+
+Example:
+	ac97: sound@...00000 {
+	      	compatible = "marvell,pxa2xx-ac97";
+		reg = < 0x40500000 0x1000 >;
+		interrupts = <14>;
+		reset-gpio = <&gpio 113 GPIO_ACTIVE_HIGH>;
+		#sound-dai-cells = <1>;
+		pinctrl-names = "default";
+		pinctrl-0 = < &pmux_ac97_default >;
+		status = "okay";
+	};
-- 
2.1.4