From 90eb6b59d311e6facd040124cb5b659a865125b8 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 2 Jul 2018 17:11:00 +0200 Subject: 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 Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation/devicetree/bindings/sound/mrvl,pxa-ssp.txt') 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 */ -- cgit v1.2.3-55-g7522