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ARM: dts: r8a7743: Add audio clocks

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Describe the external audio clocks required by the sound driver.
Boards that provide audio clocks need to override the clock frequencies.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Biju Das 2017-12-12 18:25:08 +00:00 committed by Simon Horman
parent aaca1ff0db
commit f272445937
1 changed files with 23 additions and 0 deletions
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23
arch/arm/boot/dts/r8a7743.dtsi
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@ -1238,6 +1238,29 @@
clock-frequency = <0>;
};
/*
* 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>;
};
audio_clk_b: audio_clk_b {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <0>;
};
audio_clk_c: audio_clk_c {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <0>;
};
/* External USB clock - can be overridden by the board */
usb_extal_clk: usb_extal {
compatible = "fixed-clock";