carma: remove unnecessary DMA_INTERRUPT capability

These drivers set the DMA_INTERRUPT capability bit when requesting a DMA
controller channel. This was historical, and is no longer needed.

Recent changes to the drivers/dma/fsldma.c driver have removed support
for this flag. This makes the carma drivers unable to find a DMA channel
with the required capabilities.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/carma/carma-fpga-program.c b/drivers/misc/carma/carma-fpga-program.c
index a2d25e4..eaddfe9 100644 (file)
--- a/drivers/misc/carma/carma-fpga-program.c
+++ b/drivers/misc/carma/carma-fpga-program.c
@@ -978,7 +978,6 @@ static int fpga_of_probe(struct platform_device *op)
        dev_set_drvdata(priv->dev, priv);
        dma_cap_zero(mask);
        dma_cap_set(DMA_MEMCPY, mask);
-       dma_cap_set(DMA_INTERRUPT, mask);
        dma_cap_set(DMA_SLAVE, mask);
        dma_cap_set(DMA_SG, mask);
 

diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 8c279da..0c43297 100644 (file)
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -666,7 +666,7 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf)
        src = SYS_FPGA_BLOCK;
        tx = chan->device->device_prep_dma_memcpy(chan, dst, src,
                                                  REG_BLOCK_SIZE,
-                                                 DMA_PREP_INTERRUPT);
+                                                 0);
        if (!tx) {
                dev_err(priv->dev, "unable to prep SYS-FPGA DMA\n");
                return -ENOMEM;