src/include/device/spi.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __DEVICE_SPI_H__
   4 #define __DEVICE_SPI_H__
   5
   6 struct device;
   7 struct spi_bus_operations {
   8         /*
   9          * This is a SoC-specific method that can be provided to translate the
  10          * 'struct device' for a SPI controller into a unique SPI bus
  11          * number. Returns -1 if the bus number for this bus cannot be
  12          * determined.
  13          */
  14         int (*dev_to_bus)(struct device *dev);
  15 };
  16
  17 #endif  /* __DEVICE_SPI_H__ */