Add "mem" variable in spi_master, which can be used to hold on the
memory mapped address.
Signed-off-by: Sourav Poddar <sourav.poddar@xxxxxx>
---
include/linux/spi/spi.h | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 4be969a..72565ff 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -298,6 +298,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
* @configure_from_slave: Used when SPI controller has registers which need
* 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.
* 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
@@ -432,6 +433,8 @@ struct spi_master {
void (*put_buf)(struct spi_master *master);
void (*configure_from_slave)(struct spi_device *spi, u8 *val);
+ void __iomem *mem;
+
/* gpio chip select */
int *cs_gpios;
};
--
1.7.1
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