ENGR00269945: pinctrl: support pinctrl setting assertion via gpios

[karo-tx-linux.git] / Documentation / devicetree / bindings / pinctrl / pinctrl-bindings.txt

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
index fa40a177164ce0b68ace98b0adf05855989bc623..70028f6c7138a5af0a91d5f4f59ab0282cac38bc 100644 (file)
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
@@ -71,6 +71,13 @@ pinctrl-names:       The list of names to assign states. List entry 0 defines the
                name for integer state ID 0, list entry 1 for state ID 1, and
                so on.
 
+pinctrl-assert-gpios:
+               List of phandles, each pointing at a GPIO which is used by some
+               board design to steer pins between two peripherals on the board.
+               It plays like a board level pin multiplexer to choose different
+               functions for given pins by pulling up/down the GPIOs.  See
+               bindings/gpio/gpio.txt for details of how to specify GPIO.
+
 For example:
 
        /* For a client device requiring named states */