Pin nodes must be children of the pinctrl master node and can
contain the following properties:
-- pad-offset - (required) offset in the IOBASE for the pin to configured.
-- gpio-offset - (required) offset in the GPIOBASE for the pin to configured and
- also the bit shift in this register.
-- mode-gpio - (optional) standalone property to force the pin into GPIO mode.
-- mode-func - (optional) function number to assign to the pin. if 'mode-gpio'
- is set, this property will be ignored.
+- pad-offset - (required) offset in the IOBASE for the pin to configure
+- gpio-offset - (required only when 'mode-gpio' is set) 2 cells
+ - offset in the GPIOBASE for the pin to configure
+ - the bit shift in this register (4 = bit 4)
+- mode-gpio - (optional) standalone property to force the pin into GPIO mode
+- mode-func - (optional) function number to assign to the pin. If
+ 'mode-gpio' is set, this property will be ignored.
in case of 'mode-gpio' property set:
-- output-value - (optional) this set the default output value of the GPIO.
-- direction - (optional) this set the direction of the gpio.
-- pull-str - (optional) this set the pull strength of the pin.
-- pull-assign - (optional) this set the pull assignement (up/down) of the pin.
+- output-value - (optional) this set the default output value of the GPIO
+- direction - (optional) this set the direction of the gpio
+- pull-strength - (optional) this set the pull strength of the pin
+- pull-assign - (optional) this set the pull assignement (up/down) of the pin
+- invert - (optional) this input pin is inverted
Example:
pin_usb_host_en0@0 {
- gpio-offset = <0x80 8>;
- pad-offset = <0x260>;
- mode-gpio;
- output-value = <1>;
- direction = <PIN_OUTPUT>;
+ gpio-offset = <0x80 8>;
+ pad-offset = <0x260>;
+ mode-gpio;
+ output-value = <1>;
+ direction = <PIN_OUTPUT>;
};