description: ESP32 SD card over SPI compatible: "espressif,esp32-sdspi" bus: spi properties: pin-cd: type: phandles default: GPIO_PIN_SPEC_NONE description: Card detect GPIO pin-wp: type: phandles default: GPIO_PIN_SPEC_NONE description: Write protect GPIO pin-int: type: phandles default: GPIO_PIN_SPEC_NONE description: Interrupt GPIO frequency-khz: type: int required: true description: SPI clock frequency in kHz