Add serial driver data for Google Tensor gs101 SoC and a common fifoszdt_serial_drv_data that can be used by platforms that specify the samsung,uart-fifosize DT property. A corresponding dt-bindings patch updates the yaml to ensure samsung,uart-fifosize is a required property. Reviewed-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Peter Griffin <peter.griffin@xxxxxxxxxx> --- drivers/tty/serial/samsung_tty.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index 3bd552841cd2..d0e33f98dde0 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -2492,14 +2492,25 @@ static const struct s3c24xx_serial_drv_data exynos850_serial_drv_data = { .fifosize = { 256, 64, 64, 64 }, }; +/* + * Common drv_data struct for platforms that specify uart,fifosize in + * device tree. + */ +static const struct s3c24xx_serial_drv_data exynos_fifoszdt_serial_drv_data = { + EXYNOS_COMMON_SERIAL_DRV_DATA(), + .fifosize = { 0 }, +}; + #define EXYNOS4210_SERIAL_DRV_DATA (&exynos4210_serial_drv_data) #define EXYNOS5433_SERIAL_DRV_DATA (&exynos5433_serial_drv_data) #define EXYNOS850_SERIAL_DRV_DATA (&exynos850_serial_drv_data) +#define EXYNOS_FIFOSZDT_DRV_DATA (&exynos_fifoszdt_serial_drv_data) #else #define EXYNOS4210_SERIAL_DRV_DATA NULL #define EXYNOS5433_SERIAL_DRV_DATA NULL #define EXYNOS850_SERIAL_DRV_DATA NULL +#define EXYNOS_FIFOSZDT_DRV_DATA NULL #endif #ifdef CONFIG_ARCH_APPLE @@ -2583,6 +2594,9 @@ static const struct platform_device_id s3c24xx_serial_driver_ids[] = { }, { .name = "artpec8-uart", .driver_data = (kernel_ulong_t)ARTPEC8_SERIAL_DRV_DATA, + }, { + .name = "gs101-uart", + .driver_data = (kernel_ulong_t)EXYNOS_FIFOSZDT_DRV_DATA, }, { }, }; @@ -2604,6 +2618,8 @@ static const struct of_device_id s3c24xx_uart_dt_match[] = { .data = EXYNOS850_SERIAL_DRV_DATA }, { .compatible = "axis,artpec8-uart", .data = ARTPEC8_SERIAL_DRV_DATA }, + { .compatible = "google,gs101-uart", + .data = EXYNOS_FIFOSZDT_DRV_DATA }, {}, }; MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match); -- 2.43.0.rc1.413.gea7ed67945-goog