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| author | Jaewon Kim <jaewon02.kim@samsung.com> | 2023-05-02 15:28:11 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-05-08 09:10:50 +0900 |
| commit | d1a7718ee8dbcc488d3243d52e19c755123e0024 (patch) | |
| tree | 75ace345eff0fed8943442b88f7d513decde1665 /drivers/spi/spi-s3c64xx.c | |
| parent | ac9a78681b921877518763ba0e89202254349d1b (diff) | |
| download | lwn-d1a7718ee8dbcc488d3243d52e19c755123e0024.tar.gz lwn-d1a7718ee8dbcc488d3243d52e19c755123e0024.zip | |
spi: s3c64xx: change polling mode to optional
Previously, Polling mode was supported as quirk for SOC without DMA.
To provide more flexible support for polling mode, it changed to polling
mode when the 'dmas' property is not present in the devicetree, rather than
using a quirk.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org
Link: https://lore.kernel.org/r/20230502062813.112434-2-jaewon02.kim@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org
Diffstat (limited to 'drivers/spi/spi-s3c64xx.c')
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 7ac17f0d18a9..5f59d6f8c8d8 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -19,7 +19,6 @@ #include <linux/platform_data/spi-s3c64xx.h> #define MAX_SPI_PORTS 12 -#define S3C64XX_SPI_QUIRK_POLL (1 << 0) #define S3C64XX_SPI_QUIRK_CS_AUTO (1 << 1) #define AUTOSUSPEND_TIMEOUT 2000 @@ -116,7 +115,7 @@ #define S3C64XX_SPI_TRAILCNT S3C64XX_SPI_MAX_TRAILCNT #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) -#define is_polling(x) (x->port_conf->quirks & S3C64XX_SPI_QUIRK_POLL) +#define is_polling(x) (x->cntrlr_info->polling) #define RXBUSY (1<<2) #define TXBUSY (1<<3) @@ -1068,6 +1067,7 @@ static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev) } sci->no_cs = of_property_read_bool(dev->of_node, "no-cs-readback"); + sci->polling = !of_property_present(dev->of_node, "dmas"); return sci; } |