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author | Tudor Ambarus <tudor.ambarus@linaro.org> | 2024-02-16 10:05:45 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-10 17:35:59 +0300 |
commit | 6f9d907bee2a7bf4f40cec754846d421071e83f4 (patch) | |
tree | 7237314095c70672b9338e917ecccc8144a592d1 /drivers/spi | |
parent | 3fa0085f1052a3fb4353334503afa659cbdb4a97 (diff) | |
download | linux-6f9d907bee2a7bf4f40cec754846d421071e83f4.tar.xz |
spi: s3c64xx: define a magic value
[ Upstream commit ff8faa8a5c0f4c2da797cd22a163ee3cc8823b13 ]
Define a magic value, it will be used in the next patch as well.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://msgid.link/r/20240216070555.2483977-3-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: a3d3eab627bb ("spi: s3c64xx: Use DMA mode from fifo size")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r-- | drivers/spi/spi-s3c64xx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 29e99410c971..3da940e6299f 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -76,6 +76,7 @@ #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) @@ -106,7 +107,8 @@ #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) |