spi: atmel: Fix DMA-setup for transfers with more than 8 bits per word

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 <[e-mail]>
Signed-off-by: Nicolas Ferre <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>
Cc: [e-mail]

drivers/spi/spi-atmel.c

···
 
 	*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 */