diff options
| -rw-r--r-- | drivers/spi/spi-mem.c | 2 | ||||
| -rw-r--r-- | include/linux/spi/spi-mem.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index 62a7b80801d2..967f581bca4f 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -142,7 +142,7 @@ static bool spi_mem_default_supports_op(struct spi_mem *mem, spi_check_buswidth_req(mem, op->dummy.buswidth, true)) return false; - if (op->data.nbytes && + if (op->data.dir != SPI_MEM_NO_DATA && spi_check_buswidth_req(mem, op->data.buswidth, op->data.dir == SPI_MEM_DATA_OUT)) return false; diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 867839cc69a7..250b6f5c47c2 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -57,10 +57,12 @@ /** * enum spi_mem_data_dir - describes the direction of a SPI memory data * transfer from the controller perspective + * @SPI_MEM_NO_DATA: no data transferred * @SPI_MEM_DATA_IN: data coming from the SPI memory * @SPI_MEM_DATA_OUT: data sent to the SPI memory */ enum spi_mem_data_dir { + SPI_MEM_NO_DATA, SPI_MEM_DATA_IN, SPI_MEM_DATA_OUT, }; |