Hi.
I have the following DTO that I've been using successfully in kernel 3.8 to
use pin P9_41 as an input:
...
P9_41A_i: P9_41A_in{pinctrl-single,pins = <0x1B4 0x37>;};
P9_41A_o: P9_41A_out{pinctrl-single,pins = <0x1B4 0x0F 0x1A8 0x37
>;};
...
P9_41A_mux {
compatible = "bone-pinmux-helper";
status = "okay";
pinctrl-names = "input", "output";
pinctrl-0 = <&P9_41A_i>;
pinctrl-1 = <&P9_41A_o>;
};
After compiling and loading the DTO in kernel 3.8, the
/sys/devices/ocp.4/P9_41_mux/status file is created and if I echo "input"
into it, I can read the pin as an input. However, in kernel 4.1, the
/sys/devices/platform/ocp/P9_41_mux/status file is created but when I echo
"input" to it, nothing happens and I can't read the value of the pin.
What am I missing? What else do I need to use to enable P9_42 as an input?
Thanks!
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