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Commit 777dcf73 authored by Christopher Bostic's avatar Christopher Bostic Committed by Greg Kroah-Hartman
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drivers/fsi: Add documentation for GPIO bindings 



Add fsi master gpio device tree binding documentation.

Includes changes from Jeremy Kerr <jk@ozlabs.org>.

Signed-off-by: default avatarChristopher Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: default avatarJeremy Kerr <jk@ozlabs.org>
Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent cd0fdb5c

Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt

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Device-tree bindings for gpio-based FSI master driver

-----------------------------------------------------



Required properties:

 - compatible = "fsi-master-gpio";

 - clock-gpios = <gpio-descriptor>;	: GPIO for FSI clock

 - data-gpios = <gpio-descriptor>;	: GPIO for FSI data signal



Optional properties:

 - enable-gpios = <gpio-descriptor>;	: GPIO for enable signal

 - trans-gpios = <gpio-descriptor>;	: GPIO for voltage translator enable

 - mux-gpios = <gpio-descriptor>;	: GPIO for pin multiplexing with other

                                          functions (eg, external FSI masters)



Examples:



    fsi-master {

        compatible = "fsi-master-gpio", "fsi-master";

        clock-gpios = <&gpio 0>;

        data-gpios = <&gpio 1>;

        enable-gpios = <&gpio 2>;

        trans-gpios = <&gpio 3>;

        mux-gpios = <&gpio 4>;

    }