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authorTudor Ambarus <tudor.ambarus@linaro.org>2024-02-16 10:05:54 +0300
committerMark Brown <broonie@kernel.org>2024-03-05 23:42:59 +0300
commite8b16c7a420420a994f68c181abc4a82dcca0616 (patch)
treeffb0a9e13cbaeefd78437814d29be8bbc0350e18 /drivers/spi/spi-s3c64xx.c
parentad0adac84d42b693295f4bde407d9f20c9a694ab (diff)
downloadlinux-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.c12
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,