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[10/17] spi/spi.h: Add mmap flag in spi master.

Message ID 1385451313-1875-11-git-send-email-sourav.poddar@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Poddar, Sourav Nov. 26, 2013, 7:35 a.m. UTC 
Add "mmap" flag which can be used to show that the master
controller supports memory mapped operations.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
---
 include/linux/spi/spi.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 72565ff..9425ea4 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -299,6 +299,7 @@  static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *      to be configured from slave specifics information(typical use case for
  *      SPI flash device).
  * @mem: memory mapped address to be filled by master controller driver.
+ * @mmap: Shows that master controller supports memory mapped operation.
  * Each SPI master controller can communicate with one or more @spi_device
  * children.  These make a small bus, sharing MOSI, MISO and SCK signals
  * but not chip select signals.  Each device may be configured to use a
@@ -437,6 +438,7 @@  struct spi_master {
 
 	/* gpio chip select */
 	int			*cs_gpios;
+	bool	mmap;
 };
 
 static inline void *spi_master_get_devdata(struct spi_master *master)