serial: samsung: Add the support for Exynos5433 SoC

This patch adds new s3c24xx_serial_drv_data structure for Exynos5433 SoC
because Exynos5433 has different fifo size from existing Exynos4 SoC.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 19273e31d22426071cc445e0c76655cc6394dbb2..107e807225752623c7f8cae56b17f00d4d003d37 100644 (file)
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1757,32 +1757,43 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
 #endif
 
 #if defined(CONFIG_ARCH_EXYNOS)
+#define EXYNOS_COMMON_SERIAL_DRV_DATA                          \
+       .info = &(struct s3c24xx_uart_info) {                   \
+               .name           = "Samsung Exynos UART",        \
+               .type           = PORT_S3C6400,                 \
+               .has_divslot    = 1,                            \
+               .rx_fifomask    = S5PV210_UFSTAT_RXMASK,        \
+               .rx_fifoshift   = S5PV210_UFSTAT_RXSHIFT,       \
+               .rx_fifofull    = S5PV210_UFSTAT_RXFULL,        \
+               .tx_fifofull    = S5PV210_UFSTAT_TXFULL,        \
+               .tx_fifomask    = S5PV210_UFSTAT_TXMASK,        \
+               .tx_fifoshift   = S5PV210_UFSTAT_TXSHIFT,       \
+               .def_clk_sel    = S3C2410_UCON_CLKSEL0,         \
+               .num_clks       = 1,                            \
+               .clksel_mask    = 0,                            \
+               .clksel_shift   = 0,                            \
+       },                                                      \
+       .def_cfg = &(struct s3c2410_uartcfg) {                  \
+               .ucon           = S5PV210_UCON_DEFAULT,         \
+               .ufcon          = S5PV210_UFCON_DEFAULT,        \
+               .has_fracval    = 1,                            \
+       }                                                       \
+
 static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
-       .info = &(struct s3c24xx_uart_info) {
-               .name           = "Samsung Exynos4 UART",
-               .type           = PORT_S3C6400,
-               .has_divslot    = 1,
-               .rx_fifomask    = S5PV210_UFSTAT_RXMASK,
-               .rx_fifoshift   = S5PV210_UFSTAT_RXSHIFT,
-               .rx_fifofull    = S5PV210_UFSTAT_RXFULL,
-               .tx_fifofull    = S5PV210_UFSTAT_TXFULL,
-               .tx_fifomask    = S5PV210_UFSTAT_TXMASK,
-               .tx_fifoshift   = S5PV210_UFSTAT_TXSHIFT,
-               .def_clk_sel    = S3C2410_UCON_CLKSEL0,
-               .num_clks       = 1,
-               .clksel_mask    = 0,
-               .clksel_shift   = 0,
-       },
-       .def_cfg = &(struct s3c2410_uartcfg) {
-               .ucon           = S5PV210_UCON_DEFAULT,
-               .ufcon          = S5PV210_UFCON_DEFAULT,
-               .has_fracval    = 1,
-       },
+       EXYNOS_COMMON_SERIAL_DRV_DATA,
        .fifosize = { 256, 64, 16, 16 },
 };
+
+static struct s3c24xx_serial_drv_data exynos5433_serial_drv_data = {
+       EXYNOS_COMMON_SERIAL_DRV_DATA,
+       .fifosize = { 64, 256, 16, 256 },
+};
+
 #define EXYNOS4210_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos4210_serial_drv_data)
+#define EXYNOS5433_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos5433_serial_drv_data)
 #else
 #define EXYNOS4210_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#define EXYNOS5433_SERIAL_DRV_DATA (kernel_ulong_t)NULL
 #endif
 
 static struct platform_device_id s3c24xx_serial_driver_ids[] = {
@@ -1804,6 +1815,9 @@ static struct platform_device_id s3c24xx_serial_driver_ids[] = {
        }, {
                .name           = "exynos4210-uart",
                .driver_data    = EXYNOS4210_SERIAL_DRV_DATA,
+       }, {
+               .name           = "exynos5433-uart",
+               .driver_data    = EXYNOS5433_SERIAL_DRV_DATA,
        },
        { },
 };
@@ -1823,6 +1837,8 @@ static const struct of_device_id s3c24xx_uart_dt_match[] = {
                .data = (void *)S5PV210_SERIAL_DRV_DATA },
        { .compatible = "samsung,exynos4210-uart",
                .data = (void *)EXYNOS4210_SERIAL_DRV_DATA },
+       { .compatible = "samsung,exynos5433-uart",
+               .data = (void *)EXYNOS5433_SERIAL_DRV_DATA },
        {},
 };
 MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match);