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ARM: dts: r8a7793: add audio clock to device tree

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Instantiate audio clock in r8a7793 device tree.
audio_clk_a/b/c are required for R-Car sound.

Based on similar work for the r8a7791 by Kuninori Morimoto.

Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Simon Horman 2015-12-02 17:16:12 +09:00
parent 072d326542
commit ad6472bf11
1 changed files with 23 additions and 0 deletions
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23
arch/arm/boot/dts/r8a7793.dtsi
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@ -706,6 +706,29 @@
clock-output-names = "extal";
};
/*
* The external audio clocks are configured as 0 Hz fixed frequency clocks by
* default. Boards that provide audio clocks should override them.
*/
audio_clk_a: audio_clk_a {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <0>;
clock-output-names = "audio_clk_a";
};
audio_clk_b: audio_clk_b {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <0>;
clock-output-names = "audio_clk_b";
};
audio_clk_c: audio_clk_c {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <0>;
clock-output-names = "audio_clk_c";
};
/* Special CPG clocks */
cpg_clocks: cpg_clocks@e6150000 {
compatible = "renesas,r8a7793-cpg-clocks",