summaryrefslogtreecommitdiff
path: root/include/linux/spi
diff options
context:
space:
mode:
authorLars-Peter Clausen <lars@metafoo.de>2011-11-16 10:13:37 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-17 12:15:39 -0800
commit3acbb0142d48713a8f65cde678a54f419801c189 (patch)
tree44791fcc15a7456574dc0fdae6404dccbce130f2 /include/linux/spi
parent7c92784a546d2945b6d6973a30f7134be78eb7a4 (diff)
SPI: Add helper macro for spi_driver boilerplate
This patch introduces the module_spi_driver macro which is a convenience macro for SPI driver modules similar to module_platform_driver. It is intended to be used by drivers which init/exit section does nothing but register/unregister the SPI driver. By using this macro it is possible to eliminate a few lines of boilerplate code per SPI driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/spi.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index bb4f5fbbbd8e..176fce9cc6b1 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -200,6 +200,17 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
driver_unregister(&sdrv->driver);
}
+/**
+ * module_spi_driver() - Helper macro for registering a SPI driver
+ * @__spi_driver: spi_driver struct
+ *
+ * Helper macro for SPI drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_spi_driver(__spi_driver) \
+ module_driver(__spi_driver, spi_register_driver, \
+ spi_unregister_driver)
/**
* struct spi_master - interface to SPI master controller