diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/spi/spi.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 9fc5a9c012e2..39681f7e063b 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -981,6 +981,8 @@ struct spi_res { * (SPI_NBITS_SINGLE) is used. * @rx_nbits: number of bits used for reading. If 0 the default * (SPI_NBITS_SINGLE) is used. + * @multi_lane_mode: How to serialize data on multiple lanes. One of the + * SPI_MULTI_LANE_MODE_* values. * @len: size of rx and tx buffers (in bytes) * @speed_hz: Select a speed other than the device default for this * transfer. If 0 the default (from @spi_device) is used. @@ -1117,6 +1119,12 @@ struct spi_transfer { unsigned cs_change:1; unsigned tx_nbits:4; unsigned rx_nbits:4; + +#define SPI_MULTI_LANE_MODE_SINGLE 0 /* only use single lane */ +#define SPI_MULTI_LANE_MODE_STRIPE 1 /* one data word per lane */ +#define SPI_MULTI_LANE_MODE_MIRROR 2 /* same word sent on all lanes */ + unsigned multi_lane_mode: 2; + unsigned timestamped:1; bool dtr_mode; #define SPI_NBITS_SINGLE 0x01 /* 1-bit transfer */ |