I have been trying to enable the timer output compare pin (MX6QDL_PAD_SD1_DAT2__GPT_COMPARE2) on the iMX6Q with no success. I haven't found any example that discusses how to properly do this. My understanding is that I need to enable the pin on the kernel and then I could set the OCR1, TCCR1, and TIMSK1 registers through Linux.
Here is what I have been doing:
edit the kernel/arch/arm/boot/dts/imx6q-udoo.dts (I have an UDOO board)
pinctrl-names = "default"
pinctrl-0 = <&pinctrl_gptcomp>;
status = "okay";
and in &iomuxc I added:
fsl,pins = <
Sadly this doesn't work correctly and building the kernel fails. I know that part of what I am doing is right because I have successfully enabled the UART3, 5 and I2C1 pins using similar method.
Any help would be appreciated.