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Commit 04812779 authored by Bhalchandra Gajare's avatar Bhalchandra Gajare
Browse files

Documentation: sound: add wcd-spi-ac property to wcd-spi 



Add documentation for the wcd-spi-ac device node that can be
created under the wcd-spi node if access sharing of the wcd-spi
bus is required.

Change-Id: Ic846aa1226d024257a3722470372d0821dd69b8e
Signed-off-by: default avatarBhalchandra Gajare <gajare@codeaurora.org>
parent 4b19ee48

Documentation/devicetree/bindings/sound/wcd-spi.txt

+20 −0
Original line number Diff line number Diff line
@@ -35,3 +35,23 @@ tavil_codec { 
		qcom,mem-base-addr = <0x100000>;

	};

};



WCD SPI Accces Control driver support



* wcd_spi_ac



The wcd_spi_ac driver can be added as child device node to the wcd_spi node

to indicate that the WCD SPI bus needs access control and the access needs

to be arbitrated with other masters, possibly residing on another processor.

The wcd-spi driver will parse this node and register platform_device for

this node.



Required properties:



- compatible : "qcom,wcd-spi-ac"



Example:



wcd_spi_ac {

	compatible = "qcom,wcd-spi-ac";

};