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| author | Tudor Ambarus <tudor.ambarus@linaro.org> | 2024-02-16 10:05:54 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-03-05 23:42:59 +0300 |
| commit | e8b16c7a420420a994f68c181abc4a82dcca0616 (patch) | |
| tree | ffb0a9e13cbaeefd78437814d29be8bbc0350e18 /drivers/spi/spi-s3c64xx.c | |
| parent | ad0adac84d42b693295f4bde407d9f20c9a694ab (diff) | |
| download | linux-e8b16c7a420420a994f68c181abc4a82dcca0616.tar.xz | |
spi: s3c64xx: switch gs101 to new port config data
Drop the fifo_lvl_mask and rx_lvl_offset and switch to the new port
config data.
Advantages of the change:
- drop dependency on the OF alias ID.
- FIFO depth is inferred from the compatible. GS101 integrates 16 SPI
IPs, all with 64 bytes FIFO depths.
- use full mask for SPI_STATUS.{RX, TX}_FIFO_LVL fields. Using partial
masks is misleading and can hide problems of the driver logic.
S3C64XX_SPI_ST_TX_FIFO_RDY_V2 was defined based on the USI's
SPI_VERSION.USI_IP_VERSION register field, which has value 2 at reset.
MAX_SPI_PORTS is updated to reflect the maximum number of ports for the
rest of the compatibles.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://msgid.link/r/20240216070555.2483977-12-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-s3c64xx.c')
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 128f4a7c4bd9..784786407d2e 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -20,7 +20,7 @@ #include <linux/spi/spi.h> #include <linux/types.h> -#define MAX_SPI_PORTS 16 +#define MAX_SPI_PORTS 12 #define S3C64XX_SPI_QUIRK_CS_AUTO (1 << 1) #define AUTOSUSPEND_TIMEOUT 2000 @@ -79,6 +79,8 @@ #define S3C64XX_SPI_INT_RX_FIFORDY_EN (1<<1) #define S3C64XX_SPI_INT_TX_FIFORDY_EN (1<<0) +#define S3C64XX_SPI_ST_RX_FIFO_RDY_V2 GENMASK(23, 15) +#define S3C64XX_SPI_ST_TX_FIFO_RDY_V2 GENMASK(14, 6) #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) @@ -1615,11 +1617,9 @@ static const struct s3c64xx_spi_port_config fsd_spi_port_config = { }; static const struct s3c64xx_spi_port_config gs101_spi_port_config = { - /* fifo_lvl_mask is deprecated. Use {rx, tx}_fifomask instead. */ - .fifo_lvl_mask = { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f}, - /* rx_lvl_offset is deprecated. Use {rx, tx}_fifomask instead. */ - .rx_lvl_offset = 15, + .fifo_depth = 64, + .rx_fifomask = S3C64XX_SPI_ST_RX_FIFO_RDY_V2, + .tx_fifomask = S3C64XX_SPI_ST_TX_FIFO_RDY_V2, .tx_st_done = 25, .clk_div = 4, .high_speed = true, |