Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / sound / qcom,lpass-cpu.txt

diff --git a/kernel/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt b/kernel/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
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+* 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"
+
+Optional properties:
+
+- qcom,adsp            : Phandle for the audio DSP node
+
+Example:
+
+lpass@28100000 {
+       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 = <&adsp>;
+};