/* * Copyright (c) 2021, STMicroelectronics * * SPDX-License-Identifier: Apache-2.0 */ #include &lpspi3 { led_strip: ws2812@0 { compatible = "worldsemi,ws2812-spi"; /* SPI */ reg = <0>; /* ignored, but necessary for SPI bindings */ spi-max-frequency = <6400000>; /* WS2812 */ chain-length = <2>; /* arbitrary; change at will */ spi-cpha; spi-one-frame = <0xf0>; /* 11110000: 625 ns high and 625 ns low */ spi-zero-frame = <0xc0>; /* 11000000: 312.5 ns high and 937.5 ns low */ color-mapping = ; }; }; / { aliases { led-strip = &led_strip; }; };