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authorIngo Molnar <mingo@elte.hu>2009-04-08 04:35:30 -0400
committerIngo Molnar <mingo@elte.hu>2009-04-08 04:35:30 -0400
commit5ea472a77f8e4811ceee3f44a9deda6ad6e8b789 (patch)
treea9ec5019e2b666a19874fc344ffb0dd5da6bce94 /include/linux/spi/spi.h
parent6c009ecef8cca28c7c09eb16d0802e37915a76e1 (diff)
parent577c9c456f0e1371cbade38eaf91ae8e8a308555 (diff)
Merge commit 'v2.6.30-rc1' into perfcounters/core
Conflicts: arch/powerpc/include/asm/systbl.h arch/powerpc/include/asm/unistd.h include/linux/init_task.h Merge reason: the conflicts are non-trivial: PowerPC placement of sys_perf_counter_open has to be mixed with the new preadv/pwrite syscalls. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 68bb1c501d0d..2cc43fa380cb 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -204,6 +204,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
204 * SPI slaves, and are numbered from zero to num_chipselects. 204 * SPI slaves, and are numbered from zero to num_chipselects.
205 * each slave has a chipselect signal, but it's common that not 205 * each slave has a chipselect signal, but it's common that not
206 * every chipselect is connected to a slave. 206 * every chipselect is connected to a slave.
207 * @dma_alignment: SPI controller constraint on DMA buffers alignment.
207 * @setup: updates the device mode and clocking records used by a 208 * @setup: updates the device mode and clocking records used by a
208 * device's SPI controller; protocol code may call this. This 209 * device's SPI controller; protocol code may call this. This
209 * must fail if an unrecognized or unsupported mode is requested. 210 * must fail if an unrecognized or unsupported mode is requested.
@@ -239,6 +240,11 @@ struct spi_master {
239 */ 240 */
240 u16 num_chipselect; 241 u16 num_chipselect;
241 242
243 /* some SPI controllers pose alignment requirements on DMAable
244 * buffers; let protocol drivers know about these requirements.
245 */
246 u16 dma_alignment;
247
242 /* setup mode and clock, etc (spi driver may call many times) */ 248 /* setup mode and clock, etc (spi driver may call many times) */
243 int (*setup)(struct spi_device *spi); 249 int (*setup)(struct spi_device *spi);
244 250