diff options
Diffstat (limited to 'include/linux/spi/spi.h')
| -rw-r--r-- | include/linux/spi/spi.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index a64235e05321..e9ebfcd2e932 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -1277,7 +1277,6 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n) { return 0; } #endif - /* If you're hotplugging an adapter with devices (parport, usb, etc) * use spi_new_device() to describe each device. You can also call * spi_unregister_device() to start making that device vanish, but @@ -1309,6 +1308,22 @@ spi_transfer_is_last(struct spi_controller *ctlr, struct spi_transfer *xfer) return list_is_last(&xfer->transfer_list, &ctlr->cur_msg->transfers); } +/* OF support code */ +#if IS_ENABLED(CONFIG_OF) + +/* must call put_device() when done with returned spi_device device */ +extern struct spi_device * +of_find_spi_device_by_node(struct device_node *node); + +#else + +static inline struct spi_device * +of_find_spi_device_by_node(struct device_node *node) +{ + return NULL; +} + +#endif /* IS_ENABLED(CONFIG_OF) */ /* Compatibility layer */ #define spi_master spi_controller |