[PATCH 02/12] spi: s3c64xx: define a magic value

From: Tudor Ambarus
Date: Thu Feb 08 2024 - 08:51:22 EST


Define a magic value, it will be used in the next patch as well.

Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
---
drivers/spi/spi-s3c64xx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 6f29dca68491..6ff3b25b6feb 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -78,6 +78,7 @@
#define S3C64XX_SPI_INT_RX_FIFORDY_EN (1<<1)
#define S3C64XX_SPI_INT_TX_FIFORDY_EN (1<<0)

+#define S3C64XX_SPI_ST_TX_FIFO_LVL_SHIFT 6
#define S3C64XX_SPI_ST_RX_OVERRUN_ERR (1<<5)
#define S3C64XX_SPI_ST_RX_UNDERRUN_ERR (1<<4)
#define S3C64XX_SPI_ST_TX_OVERRUN_ERR (1<<3)
@@ -108,7 +109,8 @@
#define FIFO_LVL_MASK(i) ((i)->port_conf->fifo_lvl_mask[i->port_id])
#define S3C64XX_SPI_ST_TX_DONE(v, i) (((v) & \
(1 << (i)->port_conf->tx_st_done)) ? 1 : 0)
-#define TX_FIFO_LVL(v, i) (((v) >> 6) & FIFO_LVL_MASK(i))
+#define TX_FIFO_LVL(v, i) (((v) >> S3C64XX_SPI_ST_TX_FIFO_LVL_SHIFT) & \
+ FIFO_LVL_MASK(i))
#define RX_FIFO_LVL(v, i) (((v) >> (i)->port_conf->rx_lvl_offset) & \
FIFO_LVL_MASK(i))
#define FIFO_DEPTH(i) ((FIFO_LVL_MASK(i) >> 1) + 1)
--
2.43.0.687.g38aa6559b0-goog