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authorTejun Heo <tj@kernel.org>2009-07-03 18:13:18 -0400
committerTejun Heo <tj@kernel.org>2009-07-03 18:13:18 -0400
commitc43768cbb7655ea5ff782ae250f6e2ef4297cf98 (patch)
tree3982e41dde3eecaa3739a5d1a8ed18d04bd74f01 /include/linux/spi/spi.h
parent1a8dd307cc0a2119be4e578c517795464e6dabba (diff)
parent746a99a5af60ee676afa2ba469ccd1373493c7e7 (diff)
Merge branch 'master' into for-next
Pull linus#master to merge PER_CPU_DEF_ATTRIBUTES and alpha build fix changes. As alpha in percpu tree uses 'weak' attribute instead of inline assembly, there's no need for __used attribute. Conflicts: arch/alpha/include/asm/percpu.h arch/mn10300/kernel/vmlinux.lds.S include/linux/percpu-defs.h
Diffstat (limited to 'include/linux/spi/spi.h')
-rw-r--r--include/linux/spi/spi.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 9c4cd27f4685..c47c4b4da97e 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -80,6 +80,8 @@ struct spi_device {
80#define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */ 80#define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */
81#define SPI_3WIRE 0x10 /* SI/SO signals shared */ 81#define SPI_3WIRE 0x10 /* SI/SO signals shared */
82#define SPI_LOOP 0x20 /* loopback mode */ 82#define SPI_LOOP 0x20 /* loopback mode */
83#define SPI_NO_CS 0x40 /* 1 dev/bus, no chipselect */
84#define SPI_READY 0x80 /* slave pulls low to pause */
83 u8 bits_per_word; 85 u8 bits_per_word;
84 int irq; 86 int irq;
85 void *controller_state; 87 void *controller_state;
@@ -248,6 +250,10 @@ struct spi_master {
248 /* spi_device.mode flags understood by this controller driver */ 250 /* spi_device.mode flags understood by this controller driver */
249 u16 mode_bits; 251 u16 mode_bits;
250 252
253 /* other constraints relevant to this driver */
254 u16 flags;
255#define SPI_MASTER_HALF_DUPLEX BIT(0) /* can't do full duplex */
256
251 /* Setup mode and clock, etc (spi driver may call many times). 257 /* Setup mode and clock, etc (spi driver may call many times).
252 * 258 *
253 * IMPORTANT: this may be called when transfers to another 259 * IMPORTANT: this may be called when transfers to another