bindings/pinctrl/fsl%2Cimx27-pinctrl.txt

4 - compatible: "fsl,imx27-iomuxc"
9 - fsl,pins: three integers array, represents a group of pins mux and config
21           0 - Primary function
22           1 - Alternate function
23           2 - GPIO
24       Registers: GIUS (GPIO In Use), GPR (General Purpose Register)
28           0 - Input
29           1 - Output
32       gpio_oconf configures the gpio submodule output signal. This does not
33       have any effect unless GPIO function is selected. A/B/C_IN are output
37           0 - A_IN
38           1 - B_IN
39           2 - C_IN
40           3 - Data Register
43       gpio_iconfa/b configures the gpio submodule input to functionblocks A and
44       B. GPIO function should be selected if this is configured.
46           0 - GPIO_IN
47           1 - Interrupt Status Register
48           2 - Pulldown
49           3 - Pullup
55 The iomux controller has gpio child nodes which are embedded in the iomux
57 node. If gpio subnodes are defined "#address-cells", "#size-cells" and "ranges"
63 	compatible = "fsl,imx27-iomuxc";
65 	#address-cells = <1>;
66 	#size-cells = <1>;
67 	ranges;
69 	gpio1: gpio@10015000 {
76 		pinctrl_uart1: uart-1 {
90 For convenience there are macros defined in imx27-pinfunc.h which provide PIN
91 and MUX_ID. They are structured as MX27_PAD_<Pad name>__<Signal name>. The names
97 	compatible = "fsl,imx27-iomuxc";
99 	#address-cells = <1>;
100 	#size-cells = <1>;
101 	ranges;
103 	gpio1: gpio@10015000 {
110 		pinctrl_uart1: uart-1 {