linux-kernel - [PATCH 1/2] ASoC: pxa: add binding for pxa2xx-ac97 audio complex

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Date:   Mon, 11 Jun 2018 22:22:10 +0200
From:   Robert Jarzmik <robert.jarzmik@...e.fr>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        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>
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 1/2] 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";
+	};
-- 
2.11.0