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authorRichard Röjfors <richard.rojfors@mocean-labs.com>2009-11-13 12:28:55 +0100
committerGrant Likely <grant.likely@secretlab.ca>2009-12-08 18:48:14 -0700
commitc9da2e125588677d74324df5088149063d578e8f (patch)
treeadafee69c0b90867809fd806b4843abbbab6f9b9 /include/linux/spi
parent86fc593599c11b62a11c85b4d7b709089df15c29 (diff)
xilinx_spi: add support for the DS570 IP.
This patch adds in support for the DS570 IP. It's register compatible with the DS464, but adds support for 8/16/32 SPI. The 8/16/32 support is added by attaching callbacks reading/writing the proper amount of data. To indicate to the driver which amount of bits to use a new field is introduced in the platform data struct. Acked-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: John Linn <John.Linn@xilinx.com> Signed-off-by: Richard Röjfors <richard.rojfors@mocean-labs.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/xilinx_spi.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/spi/xilinx_spi.h b/include/linux/spi/xilinx_spi.h
index a705ad85eeb..6f17278810b 100644
--- a/include/linux/spi/xilinx_spi.h
+++ b/include/linux/spi/xilinx_spi.h
@@ -3,14 +3,16 @@
/**
* struct xspi_platform_data - Platform data of the Xilinx SPI driver
- * @num_chipselect: Number of chip select by the IP
- * @little_endian If registers should be accessed little endian or not
+ * @num_chipselect: Number of chip select by the IP.
+ * @little_endian: If registers should be accessed little endian or not.
+ * @bits_per_word: Number of bits per word.
* @devices: Devices to add when the driver is probed.
* @num_devices: Number of devices in the devices array.
*/
struct xspi_platform_data {
u16 num_chipselect;
bool little_endian;
+ u8 bits_per_word;
struct spi_board_info *devices;
u8 num_devices;
};