spi: atmel: Remove setting of deprecated member of struct dma_slave_config

The 'direction' member of 'struct dma_slave_config' is deprecated.
Instead, drivers should use the direction argument to the
device_prep_slave_sg and device_prep_dma_cyclic functions or the
dir field in the dma_interleaved_template structure.
spi-atmel uses the direction argument to dmaengine_prep_slave_sg.
slave_config.direction is not used in neither of the DMA controller
drivers (at_h/xdmac) that spi-atmel is using, we can just remove the
setting of slave_config.direction and live with whatever stack value
is there.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211125124110.838037-3-tudor.ambarus@microchip.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-atmel.c

@@ -467,7 +467,6 @@ static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word)
 	 * So we'd rather write only one data at the time. Hence the transmit
 	 * path works the same whether FIFOs are available (and enabled) or not.
 	 */
-	slave_config.direction = DMA_MEM_TO_DEV;
 	if (dmaengine_slave_config(master->dma_tx, &slave_config)) {
 		dev_err(&as->pdev->dev,
 			"failed to configure tx dma channel\n");
@@ -482,7 +481,6 @@ static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word)
 	 * So the receive path works the same whether FIFOs are available (and
 	 * enabled) or not.
 	 */
-	slave_config.direction = DMA_DEV_TO_MEM;
 	if (dmaengine_slave_config(master->dma_rx, &slave_config)) {
 		dev_err(&as->pdev->dev,
 			"failed to configure rx dma channel\n");