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authorDaniel Mack <daniel@zonque.org>2018-07-02 17:11:00 +0200
committerMark Brown <broonie@kernel.org>2018-07-05 11:08:08 +0100
commit90eb6b59d311e6facd040124cb5b659a865125b8 (patch)
treeedd6856bdfffc011e3365f0d9e12c2a4e089eab2 /Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt
parent74b37e299f038c910dc728d736e3f071ba0ead2a (diff)
ASoC: pxa-ssp: add support for an external clock in devicetree
Allow setting a clock called 'extclk' in the device of the ssp-dai device. If specified, this clock will be set to the mclk rate from the DAI's .set_sysclk() callback. The DAI will also configure itself to use that external clock. Signed-off-by: Daniel Mack <daniel@zonque.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt b/Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt
index 74c9ba6c2823..93b982e9419f 100644
--- a/Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt
+++ b/Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt
@@ -5,6 +5,14 @@ Required properties:
compatible Must be "mrvl,pxa-ssp-dai"
port A phandle reference to a PXA ssp upstream device
+Optional properties:
+
+ clock-names
+ clocks Through "clock-names" and "clocks", external clocks
+ can be configured. If a clock names "extclk" exists,
+ it will be set to the mclk rate of the audio stream
+ and be used as clock provider of the DAI.
+
Example:
/* upstream device */