/dts-v1/; #include #include #include #include #include #include #include #include #include #include #include // Reference: https://www.waveshare.com/wiki/ESP32-S3-LCD-1.3 / { compatible = "root"; model = "Waveshare S3 LCD 1.3"; wifi0 { compatible = "espressif,esp32-wifi-pinned"; status = "disabled"; }; ble0 { compatible = "espressif,esp32-ble"; status = "disabled"; }; gpio0 { compatible = "espressif,esp32-gpio"; gpio-count = <49>; }; i2c_main { compatible = "espressif,esp32-i2c"; port = ; clock-frequency = <400000>; pin-sda = <&gpio0 47 GPIO_FLAG_NONE>; pin-scl = <&gpio0 48 GPIO_FLAG_NONE>; qmi8658 { compatible = "qst,qmi8658"; reg = <0x6B>; }; }; display_backlight_pwm { compatible = "espressif,esp32-pwm-ledc"; pin = <&gpio0 20 GPIO_FLAG_NONE>; period-ns = <33333>; ledc-timer = <0>; ledc-channel = <0>; }; display_backlight { compatible = "pwm-backlight"; pwm = <&display_backlight_pwm>; }; spi0 { compatible = "espressif,esp32-spi"; host = ; cs-gpios = <&gpio0 39 GPIO_FLAG_NONE>; pin-mosi = <&gpio0 41 GPIO_FLAG_NONE>; pin-sclk = <&gpio0 40 GPIO_FLAG_NONE>; display@0 { compatible = "sitronix,st7789"; horizontal-resolution = <240>; vertical-resolution = <240>; invert-color; pixel-clock-hz = <62500000>; pin-dc = <&gpio0 38 GPIO_FLAG_NONE>; pin-reset = <&gpio0 42 GPIO_FLAG_NONE>; backlight = <&display_backlight>; }; }; spi1 { compatible = "espressif,esp32-spi"; host = ; cs-gpios = <&gpio0 17 GPIO_FLAG_NONE>; pin-mosi = <&gpio0 18 GPIO_FLAG_NONE>; pin-miso = <&gpio0 16 GPIO_FLAG_NONE>; pin-sclk = <&gpio0 21 GPIO_FLAG_NONE>; sdcard@0 { compatible = "espressif,esp32-sdspi"; frequency-khz = <20000>; }; }; };