1/*
2 * Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#include <zephyr/dt-bindings/led/led.h>
8
9&spi3 {
10	/* Workaround to support WS2812 driver */
11	line-idle-low;
12
13	led_strip: ws2812@0 {
14		compatible = "worldsemi,ws2812-spi";
15
16		/* SPI */
17		reg = <0>; /* ignored, but necessary for SPI bindings */
18		spi-max-frequency = <6400000>;
19
20		/* WS2812 */
21		chain-length = <1>; /* arbitrary; change at will */
22		spi-cpha;
23		spi-one-frame = <0xf0>; /* 11110000: 625 ns high and 625 ns low */
24		spi-zero-frame = <0xc0>; /* 11000000: 312.5 ns high and 937.5 ns low */
25		color-mapping = <LED_COLOR_ID_GREEN
26				 LED_COLOR_ID_RED
27				 LED_COLOR_ID_BLUE>;
28	};
29};
30
31&pinctrl {
32	spim3_default: spim3_default {
33		group2 {
34			pinmux = <SPIM3_MOSI_GPIO48>;
35		};
36	};
37};
38
39/ {
40	aliases {
41		led-strip = &led_strip;
42	};
43};
44