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Message-ID: <20240208135045.3728927-3-tudor.ambarus@linaro.org>
Date: Thu, 8 Feb 2024 13:50:35 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: broonie@...nel.org,
robh@...nel.org,
andi.shyti@...nel.org,
semen.protsenko@...aro.org
Cc: krzysztof.kozlowski@...aro.org,
alim.akhtar@...sung.com,
linux-spi@...r.kernel.org,
linux-samsung-soc@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
andre.draszik@...aro.org,
peter.griffin@...aro.org,
kernel-team@...roid.com,
willmcvicker@...gle.com,
conor+dt@...nel.org,
devicetree@...r.kernel.org,
arnd@...db.de,
Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH 02/12] spi: s3c64xx: define a magic value
Define a magic value, it will be used in the next patch as well.
Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
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
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