Lines Matching +full:enable +full:- +full:output +full:- +full:pin

2 # Copyright (c) 2021-2022, Gerson Fernando Budke
3 # SPDX-License-Identifier: Apache-2.0
8   The Atmel SAM0 pin controller is a singleton node responsible for controlling
9   pin function selection and pin properties. For example, you can use this node
10   to route SERCOM0 as UART were RX to pin PAD1 and enable the pull-up resistor
11   on the pin.
20   All device pin configurations should be placed in child nodes of the 'pinctrl'
23     /** You can put this in places like a <board>-pinctrl.dtsi file in
27     /** include pre-defined combinations for the SoC variant used by the board */
28     #include <dt-bindings/pinctrl/samr21g-pinctrl.h>
42           /* both PA5 and PA7 have pull-up enabled */
43           bias-pull-up;
48   The 'usart0_default' child node encodes the pin configurations for a
52   As shown, pin configurations are organized in groups within each child node.
53   Each group can specify a list of pin function selections in the 'pinmux'
56   A group can also specify shared pin properties common to all the specified
57   pins, such as the 'bias-pull-up' property in group 2. Here is a list of
58   supported standard pin properties:
60   - bias-pull-up: Enable pull-up resistor.
61   - bias-pull-down: Enable pull-down resistor.
62   - drive-strength: Increase sink current.
63   - input-enable: Enable input on pin.
64   - output-enable: Enable output on a pin without actively driving it.
66   To link pin configurations with a device, use a pinctrl-N property for some
69     #include "board-pinctrl.dtsi"
72           pinctrl-0 = <&usart0_default>;
73           pinctrl-names = "default";
76 compatible: "atmel,sam0-pinctrl"
81   "#address-cells":
84   "#size-cells":
88 child-binding:
91   child-binding:
93       The grandchild nodes group pins that share the same pin configuration.
96       - name: pincfg-node.yaml
97         property-allowlist:
98           - bias-pull-up
99           - bias-pull-down
100           - drive-strength
101           - input-enable
102           - output-enable
110           be defined using pre-defined macros or, alternatively, using the
113       drive-strength:
115           - 0
116           - 1
119           The drive strength controls the output driver strength of an I/O pin
120           configured as an output.
121             0: Pin drive strength is set to normal drive strength.
122             1: Pin drive strength is set to stronger drive strength.