bindings/serial/serial.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Rob Herring <robh@kernel.org>
11   - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
18   Each enabled UART may have an optional "serialN" alias in the "aliases" node,
19   where N is the port number (non-negative decimal integer) as printed on the
28   cts-gpios:
32       the UART's CTS line.
34   dcd-gpios:
38       the UART's DCD line.
40   dsr-gpios:
44       the UART's DSR line.
46   dtr-gpios:
50       the UART's DTR line.
52   rng-gpios:
56       the UART's RNG line.
58   rts-gpios:
62       the UART's RTS line.
64   uart-has-rtscts:
67       The presence of this property indicates that the UART has dedicated lines
70       UART hardware and the board wiring.
72   rx-tx-swap:
76   cts-rts-swap:
80   rx-threshold:
85   tx-threshold:
91   "^(bluetooth|bluetooth-gnss|gnss|gps|mcu)$":
96         Serial attached devices shall be a child node of the host UART device
97         the slave device is attached to. It is expected that the attached
98         device is the only child node of the UART device. The slave device node
106         max-speed:
115         current-speed:
122               * device supports auto-baud
129         - compatible
133     - uart-has-rtscts
136     cts-gpios: false
137     rts-gpios: false
142   - |
149             compatible = "brcm,bcm4330-bt";
150             interrupt-parent = <&gpio>;