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ARM: tegra: add clocks property to AC'97 sound nodes

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Audio-related clocks need to be represented in the device tree. Update
bindings to describe which clocks are needed, and DT files to include
those clocks.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Stephen Warren 2013-03-28 12:11:30 -06:00
parent f9cd2b3bf4
commit 3ec9147d4f
2 changed files with 11 additions and 0 deletions
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8
Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
View file

@ -2,6 +2,11 @@ NVIDIA Tegra audio complex
Required properties:
- compatible : "nvidia,tegra-audio-wm9712"
- clocks : Must contain an entry for each entry in clock-names.
- clock-names : Must include the following entries:
"pll_a" (The Tegra clock of that name),
"pll_a_out0" (The Tegra clock of that name),
"mclk" (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk)
- nvidia,model : The user-visible name of this sound complex.
- nvidia,audio-routing : A list of the connections between audio components.
Each entry is a pair of strings, the first being the connection's sink,
@ -48,4 +53,7 @@ sound {
"Mic", "MIC1";
nvidia,ac97-controller = <&ac97>;
clocks = <&tegra_car 112>, <&tegra_car 113>, <&tegra_car 93>;
clock-names = "pll_a", "pll_a_out0", "mclk";
};

3
arch/arm/boot/dts/tegra20-colibri-512.dtsi
View file

@ -473,6 +473,9 @@ sound {
"Mic", "MIC1";
nvidia,ac97-controller = <&ac97>;
clocks = <&tegra_car 112>, <&tegra_car 113>, <&tegra_car 93>;
clock-names = "pll_a", "pll_a_out0", "mclk";
};
regulators {