[PATCH 3.14 16/76] spi: atmel: Fix DMA-setup for transfers with more than 8 bits per word
From: Greg Kroah-Hartman
Date: Sun Feb 14 2016 - 18:26:59 EST
3.14-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
@@ -593,7 +593,8 @@ 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 */