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1CSR SiRFprimaII pinmux controller2 3Required properties:4- compatible : "sirf,prima2-pinctrl"5- reg : Address range of the pinctrl registers6- interrupts : Interrupts used by every GPIO group7- gpio-controller : Indicates this device is a GPIO controller8- interrupt-controller : Marks the device node as an interrupt controller9Optional properties:10- sirf,pullups : if n-th bit of m-th bank is set, set a pullup on GPIO-n of bank m11- sirf,pulldowns : if n-th bit of m-th bank is set, set a pulldown on GPIO-n of bank m12 13Please refer to pinctrl-bindings.txt in this directory for details of the common14pinctrl bindings used by client devices.15 16SiRFprimaII's pinmux nodes act as a container for an arbitrary number of subnodes.17Each of these subnodes represents some desired configuration for a group of pins.18 19Required subnode-properties:20- sirf,pins : An array of strings. Each string contains the name of a group.21- sirf,function: A string containing the name of the function to mux to the22 group.23 24 Valid values for group and function names can be found from looking at the25 group and function arrays in driver files:26 drivers/pinctrl/pinctrl-sirf.c27 28For example, pinctrl might have subnodes like the following:29 uart2_pins_a: uart2@0 {30 uart {31 sirf,pins = "uart2grp";32 sirf,function = "uart2";33 };34 };35 uart2_noflow_pins_a: uart2@1 {36 uart {37 sirf,pins = "uart2_nostreamctrlgrp";38 sirf,function = "uart2_nostreamctrl";39 };40 };41 42For a specific board, if it wants to use uart2 without hardware flow control,43it can add the following to its board-specific .dts file.44uart2: uart@b0070000 {45 pinctrl-names = "default";46 pinctrl-0 = <&uart2_noflow_pins_a>;47}48