Commit 133eb8e3 authored by Robin Gong's avatar Robin Gong Committed by Mark Brown

spi: imx: use PIO mode if size is small

Use PIO mode instead if size is smaller than fifo size, since
dma may be less efficient.
Signed-off-by: default avatarRobin Gong <yibin.gong@nxp.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 5ba5a373
...@@ -224,6 +224,9 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi, ...@@ -224,6 +224,9 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
if (spi_imx->slave_mode) if (spi_imx->slave_mode)
return false; return false;
if (transfer->len < spi_imx->devtype_data->fifo_size)
return false;
spi_imx->dynamic_burst = 0; spi_imx->dynamic_burst = 0;
return true; return true;
......
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