[PATCH 4.3 042/200] spi: atmel: Fix DMA-setup for transfers with more than 8 bits per word

From: Greg Kroah-Hartman
Date: Sun Feb 14 2016 - 17:35:28 EST


4.3-stable review patch. If anyone has any objections, please let me know.

------------------

From: David Mosberger-Tang <davidm@xxxxxxxxxx>

commit 06515f83908d038d9e12ffa3dcca27a1b67f2de0 upstream.

The DMA-slave configuration depends on the whether <= 8 or > 8 bits
are transferred per word, so we need to call
atmel_spi_dma_slave_config() with the correct value.

Signed-off-by: David Mosberger <davidm@xxxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/spi/spi-atmel.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -773,7 +773,8 @@ static int atmel_spi_next_xfer_dma_submi

*plen = len;

- if (atmel_spi_dma_slave_config(as, &slave_config, 8))
+ if (atmel_spi_dma_slave_config(as, &slave_config,
+ xfer->bits_per_word))
goto err_exit;

/* Send both scatterlists */