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author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-11-05 19:30:18 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-11-12 08:32:16 +0100 |
commit | 968d444cdd38387882fe7bccac5dd6c8c83685a3 (patch) | |
tree | e24a2ca4d4b730a591ce15ff5b1e7ccca8d0e48c /drivers/spi/spi.c | |
parent | d74bef2b04a3ccf7339ba916e56830bb2feae957 (diff) | |
download | barebox-968d444cdd38387882fe7bccac5dd6c8c83685a3.tar.gz barebox-968d444cdd38387882fe7bccac5dd6c8c83685a3.tar.xz |
spi: introduce spi_get_master
so we can request a master usefull for the spi command
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/spi/spi.c')
-rw-r--r-- | drivers/spi/spi.c | 12 |
1 files changed, 12 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); |