diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 19ee901577d..08ff4acd522 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1135,6 +1135,9 @@ int spi_register_master(struct spi_master *master) if (master->num_chipselect == 0) return -EINVAL; + if ((master->bus_num < 0) && master->dev.of_node) + master->bus_num = of_alias_get_id(master->dev.of_node, "spi"); + /* convention: dynamically assigned bus IDs count down from the max */ if (master->bus_num < 0) { /* FIXME switch to an IDR based scheme, something like |