Hi,
with kernels prior to 4.14 it was possible to enable the pull-up resistors
via device tree also for pins exported via /sys/class/gpio. Now I have
tried to upgrade to kernel 4.16.7 but now the pull-up resistors are not
activated anymore.
I have the following definition in my dts:
&pio {
...
/* RESET/IRQ PIN for rfm12b */
rfm12b_irq: rfm12b_pins@0 {
pins = "PI17";
function = "gpio_in";
input-enable;
bias-pull-up;
};
I couldn't find any messages in the dmesg output. My definitions in the
&pio node can be seen under /proc/device-tree. Do I need an other entry for
the sysfs driver?
Best Regards
Ulrich Eckhardt
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