/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __DEVICE_SPI_H__ #define __DEVICE_SPI_H__ struct device; struct spi_bus_operations { /* * This is a SoC-specific method that can be provided to translate the * 'struct device' for a SPI controller into a unique SPI bus * number. Returns -1 if the bus number for this bus cannot be * determined. */ int (*dev_to_bus)(struct device *dev); }; #endif /* __DEVICE_SPI_H__ */