Hi all,
I have a (probably dumb) question regarding the access to the MPC5200B's timer
gpio's. I added e.g.
ti...@640 { // General Purpose Timer 4
compatible = "fsl,mpc5200b-gpt","fsl,mpc5200-gpt";
reg = <0x640 0x10>;
interrupts = <1 13 0>;
interrupt-parent = <&mpc5200_pic>;
gpio-controller;
#gpio-cells = <2>;
};
in the DTS file to several timers. Several gpiochipxxx folders are now present
in /sys/class/gpio/.
In my code, I grab the node by calling
of_find_node_by_path("/soc5...@f0000000/ti...@640"), which returns the proper
node. Then I try to get the gpio number (for a call to gpio_set_value()) by
calling of_get_gpio(node, 0) with the node found above. However, this call
always dumps
of_get_gpio_flags: can't parse gpios property
of_get_gpio_flags exited with status -2
What would be the proper way to determine the gpio number for a timer's gpio
pin from the node name or path?
Thanks for any help,
Albrecht.
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