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authorMark Brown <broonie@kernel.org>2019-05-02 05:20:29 +0300
committerMark Brown <broonie@kernel.org>2019-05-02 05:20:29 +0300
commit2e5f081003f033d37be3faf052aaccc8b6a44aa5 (patch)
tree6d07a9bfff47b20f997ecce96162b8ca9cf7b19c /drivers/spi/spi-imx.c
parent58b860ed4a77d9cb17b78e663a0341b79a12e240 (diff)
parentd61ad23cb3be09ff4956e9b9794134456522817f (diff)
downloadlinux-2e5f081003f033d37be3faf052aaccc8b6a44aa5.tar.xz
Merge branch 'spi-5.2' into spi-next
Diffstat (limited to 'drivers/spi/spi-imx.c')
-rw-r--r--drivers/spi/spi-imx.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index a81ae29aa68a..09c9a1edb2c6 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -28,6 +28,10 @@
#define DRIVER_NAME "spi_imx"
+static bool use_dma = true;
+module_param(use_dma, bool, 0644);
+MODULE_PARM_DESC(use_dma, "Enable usage of DMA when available (default)");
+
#define MXC_CSPIRXDATA 0x00
#define MXC_CSPITXDATA 0x04
#define MXC_CSPICTRL 0x08
@@ -219,6 +223,9 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
+ if (!use_dma)
+ return false;
+
if (!master->dma_rx)
return false;