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| author |   Christopher Bostic <cbostic@linux.vnet.ibm.com> | 2017-06-06 16:08:47 -0500 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-09 11:52:08 +0200 |
| commit | 777dcf7391be81644360c15c375b24c96ceb49ce (patch) | |
| tree | 2f63e34051dc9ddb40bd2205a61413f164f4f589 /Documentation/devicetree/bindings/fsi | |
| parent | drivers/fsi: Add master unscan (diff) | |
| download | linux-dev-777dcf7391be81644360c15c375b24c96ceb49ce.tar.xz linux-dev-777dcf7391be81644360c15c375b24c96ceb49ce.zip | |
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: Christopher Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/fsi')
| -rw-r--r-- | Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt new file mode 100644 index 000000000000..a767259dedad --- /dev/null +++ b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt @@ -0,0 +1,24 @@ +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>; + } |