This controller only supports 8 bits word length. Set bits_per_word_mask so spi core will reject transfers that attempt to use an unsupported bits_per_word value.
Signed-off-by: Axel Lin <[email protected]> --- drivers/spi/spi-sun6i.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c index 4b9ec08..b3e3498 100644 --- a/drivers/spi/spi-sun6i.c +++ b/drivers/spi/spi-sun6i.c @@ -391,6 +391,7 @@ static int sun6i_spi_probe(struct platform_device *pdev) master->transfer_one = sun6i_spi_transfer_one; master->num_chipselect = 4; master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST; + master->bits_per_word_mask = SPI_BPW_MASK(8); master->dev.of_node = pdev->dev.of_node; master->auto_runtime_pm = true; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
