diff options
| -rw-r--r-- | drivers/spi/spi.c | 12 | ||||
| -rw-r--r-- | include/spi/spi.h | 2 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 44040e5f62..6a5bd6d2b8 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -219,6 +219,18 @@ int spi_register_master(struct spi_master *master) } EXPORT_SYMBOL(spi_register_master); +struct spi_master *spi_get_master(int bus) +{ + struct spi_master* m; + + list_for_each_entry(m, &spi_master_list, list) { + if (m->bus_num == bus) + return m; + } + + return NULL; +} + int spi_sync(struct spi_device *spi, struct spi_message *message) { return spi->master->transfer(spi, message); diff --git a/include/spi/spi.h b/include/spi/spi.h index 1773ca22e5..d6570a402c 100644 --- a/include/spi/spi.h +++ b/include/spi/spi.h @@ -432,6 +432,8 @@ static inline ssize_t spi_w8r8(struct spi_device *spi, u8 cmd) extern struct bus_type spi_bus; +struct spi_master *spi_get_master(int bus); + static inline int spi_register_driver(struct driver_d *drv) { drv->bus = &spi_bus; |