spi: rspi: Use DUMMY_DATA macro instead of hardcoded value

Make it more obvious that this value is dummy data.

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index aea0c62b095d..d7920d95a03c 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,