bindings/auxdisplay/hit%2Chd44780.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Geert Uytterhoeven <geert@linux-m68k.org>
15   interface, which can be used in either 4-bit or 8-bit mode.
21   data-gpios:
23       GPIO pins connected to the data signal lines DB0-DB7 (8-bit mode) or
24       DB4-DB7 (4-bit mode) of the LCD Controller's bus interface.
26       - maxItems: 4
27       - maxItems: 8
29   enable-gpios:
35   rs-gpios:
41   rw-gpios:
47   backlight-gpios:
51   display-height-chars:
57   display-width-chars:
63   internal-buffer-width:
66       display-width-chars for displays with more than 2 lines).
72   - compatible
73   - data-gpios
74   - enable-gpios
75   - rs-gpios
76   - display-height-chars
77   - display-width-chars
82   - |
83     #include <dt-bindings/gpio/gpio.h>
87             data-gpios = <&hc595 0 GPIO_ACTIVE_HIGH>,
91             enable-gpios = <&hc595 4 GPIO_ACTIVE_HIGH>;
92             rs-gpios = <&hc595 5 GPIO_ACTIVE_HIGH>;
94             display-height-chars = <2>;
95             display-width-chars = <16>;