diff options
| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2010-11-20 14:52:53 +0800 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2010-11-30 17:23:24 +0100 |
| commit | 214b574ab81236e7740243985d63a1d6a61231a2 (patch) | |
| tree | 799104b78265cab4abfc3e5c73f12e2d0150dba1 | |
| parent | 82d5b5c8da769184a9bc2cc2adc90555f4aa90b0 (diff) | |
atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
passing argument 2 of 'dma_map_single' discards qualifiers from pointer target type
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
| -rw-r--r-- | drivers/spi/atmel_spi.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c index 154529aacc0..a067046c9da 100644 --- a/drivers/spi/atmel_spi.c +++ b/drivers/spi/atmel_spi.c @@ -352,8 +352,12 @@ atmel_spi_dma_map_xfer(struct atmel_spi *as, struct spi_transfer *xfer) xfer->tx_dma = xfer->rx_dma = INVALID_DMA_ADDRESS; if (xfer->tx_buf) { + /* tx_buf is a const void* where we need a void * for the dma + * mapping */ + void *nonconst_tx = (void *)xfer->tx_buf; + xfer->tx_dma = dma_map_single(dev, - (void *) xfer->tx_buf, xfer->len, + nonconst_tx, xfer->len, DMA_TO_DEVICE); if (dma_mapping_error(dev, xfer->tx_dma)) return -ENOMEM; |