[PATCH 4/5] spi: rspi: Use DUMMY_DATA macro instead of hardcoded value

[Geert Uytterhoeven <geert+renesas-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>]

Make it more obvious that this value is dummy data.

Signed-off-by: Geert Uytterhoeven <geert+renesas-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
---
 drivers/spi/spi-rspi.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 4e376db1ca4f..51fe3bdacb18 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -149,6 +149,8 @@
 #define SPBFCR_TXRST		0x80	/* qspi only */
 #define SPBFCR_RXRST		0x40	/* qspi only */
 
+#define DUMMY_DATA		0x00
+
 struct rspi_data {
 	void __iomem *addr;
 	u32 max_speed_hz;
@@ -541,7 +543,7 @@ static int rspi_receive_pio(struct rspi_data *rspi, struct spi_message *mesg,
 			return -ETIMEDOUT;
 		}
 		/* dummy write for generate clock */
-		rspi_write16(rspi, 0x00, RSPI_SPDR);
+		rspi_write16(rspi, DUMMY_DATA, RSPI_SPDR);
 
 		if (rspi_wait_for_interrupt(rspi, SPSR_SPRF, SPCR_SPRIE) < 0) {
 			dev_err(&rspi->master->dev,
@@ -586,7 +588,7 @@ static int qspi_receive_pio(struct rspi_data *rspi, struct spi_message *mesg,
 			return -ETIMEDOUT;
 		}
 		/* dummy write for generate clock */
-		rspi_write8(rspi, 0x00, RSPI_SPDR);
+		rspi_write8(rspi, DUMMY_DATA, RSPI_SPDR);
 
 		if (rspi_wait_for_interrupt(rspi, SPSR_SPRF, SPCR_SPRIE) < 0) {
 			dev_err(&rspi->master->dev,
-- 
1.7.9.5

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