diff options
Diffstat (limited to 'drivers/input/touchscreen/ads7846.c')
-rw-r--r-- | drivers/input/touchscreen/ads7846.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index c24946f51256..1de1c19dad30 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c | |||
@@ -281,17 +281,24 @@ struct ser_req { | |||
281 | u8 command; | 281 | u8 command; |
282 | u8 ref_off; | 282 | u8 ref_off; |
283 | u16 scratch; | 283 | u16 scratch; |
284 | __be16 sample; | ||
285 | struct spi_message msg; | 284 | struct spi_message msg; |
286 | struct spi_transfer xfer[6]; | 285 | struct spi_transfer xfer[6]; |
286 | /* | ||
287 | * DMA (thus cache coherency maintenance) requires the | ||
288 | * transfer buffers to live in their own cache lines. | ||
289 | */ | ||
290 | __be16 sample ____cacheline_aligned; | ||
287 | }; | 291 | }; |
288 | 292 | ||
289 | struct ads7845_ser_req { | 293 | struct ads7845_ser_req { |
290 | u8 command[3]; | 294 | u8 command[3]; |
291 | u8 pwrdown[3]; | ||
292 | u8 sample[3]; | ||
293 | struct spi_message msg; | 295 | struct spi_message msg; |
294 | struct spi_transfer xfer[2]; | 296 | struct spi_transfer xfer[2]; |
297 | /* | ||
298 | * DMA (thus cache coherency maintenance) requires the | ||
299 | * transfer buffers to live in their own cache lines. | ||
300 | */ | ||
301 | u8 sample[3] ____cacheline_aligned; | ||
295 | }; | 302 | }; |
296 | 303 | ||
297 | static int ads7846_read12_ser(struct device *dev, unsigned command) | 304 | static int ads7846_read12_ser(struct device *dev, unsigned command) |