AM335x pinmux problem in dts file

Hi, there

ECAP0_IN_PWM0_OUT pin functions as xdma-event_intr2 on our custom design. So am335x-evm.dts should be modified accordingly.

If I do these modification in ecap0_pins_default part, it works well. DMA operation can be triggered if there is an activity on this pin.

ecap0_pins_default: backlight_pins {

pinctrl-single,pins = <

0x164 (PIN_INPUT_PULLDOWN | MUX_MODE6)  /*ecap0_in_pwm0_out.xdma_event_intr2*/

>;

};

But if I add this description in other parts, e.g. gpms_pins part. It does not function as expected. So what is the rule to do modification for pinmux on am3352 in dts file?

Thanks

Yang