linux-kernel - [Patch V6 02/10] ASoC: qcom: Document LPASS CPU bindings

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Message-Id: <1424846385-23700-3-git-send-email-kwestfie@codeaurora.org>
Date:	Tue, 24 Feb 2015 22:39:37 -0800
From:	Kenneth Westfield <kwestfie@...eaurora.org>
To:	Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.de>,
	Liam Girdwood <lgirdwood@...il.com>,
	Banajit Goswami <bgoswami@...eaurora.org>,
	Patrick Lai <plai@...eaurora.org>,
	David Brown <davidb@...eaurora.org>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Greg KH <gregkh@...uxfoundation.org>
Cc:	Kenneth Westfield <kwestfie@...eaurora.org>,
	ALSA Mailing List <alsa-devel@...a-project.org>,
	MSM Mailing List <linux-arm-msm@...r.kernel.org>,
	Device Tree Mailing List <devicetree@...r.kernel.org>,
	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [Patch V6 02/10] ASoC: qcom: Document LPASS CPU bindings

From: Kenneth Westfield <kwestfie@...eaurora.org>

Add documentation to the sound directory of the
device-tree bindings for the QTi LPASS CPU DAI
device.

Signed-off-by: Kenneth Westfield <kwestfie@...eaurora.org>
Acked-by: Banajit Goswami <bgoswami@...eaurora.org>
---
 .../devicetree/bindings/sound/qcom,lpass-cpu.txt   | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt

diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e7c6e9321863f022ebf0d51b75d7bb83c10b9062
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
@@ -0,0 +1,49 @@
+* Qualcomm Technologies LPASS CPU DAI
+
+This node models the Qualcomm Technologies Low-Power Audio SubSystem (LPASS).
+
+Required properties:
+
+- compatible		: "qcom,lpass-cpu"
+- clocks		: Must contain an entry for each entry in clock-names.
+- clock-names		: A list which must include the following entries:
+				* "ahbix-clk"
+				* "mi2s-osr-clk"
+				* "mi2s-bit-clk"
+- interrupts		: Must contain an entry for each entry in
+			  interrupt-names.
+- interrupt-names	: A list which must include the following entries:
+				* "lpass-irq-lpaif"
+- pinctrl-N		: One property must exist for each entry in
+			  pinctrl-names.  See ../pinctrl/pinctrl-bindings.txt
+			  for details of the property values.
+- pinctrl-names		: Must contain a "default" entry.
+- reg			: Must contain an address for each entry in reg-names.
+- reg-names		: A list which must include the following entries:
+				* "lpass-lpaif"
+
+Required subnodes:
+
+- qcom,adsp		: Audio DSP sub-node
+
+Optional Audio DSP subnode properties:
+
+- status		: "disabled" indicates the adsp is not available.
+
+Example:
+
+lpass@...00000 {
+	compatible = "qcom,lpass-cpu";
+	clocks = <&lcc AHBIX_CLK>, <&lcc MI2S_OSR_CLK>, <&lcc MI2S_BIT_CLK>;
+	clock-names = "ahbix-clk", "mi2s-osr-clk", "mi2s-bit-clk";
+	interrupts = <0 85 1>;
+	interrupt-names = "lpass-irq-lpaif";
+	pinctrl-names = "default", "idle";
+	pinctrl-0 = <&mi2s_default>;
+	pinctrl-1 = <&mi2s_idle>;
+	reg = <0x28100000 0x10000>;
+	reg-names = "lpass-lpaif";
+	qcom,adsp {
+		status = "disabled";
+	};
+};
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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