tty: serial: samsung: reduce number of casts

The pointers to instances of "struct s3c24xx_serial_drv_data" are first
cast to kernel_ulong_t and then either used directly
(in "platform_device_id.driver_data") or cast again to void * (in
"of_device_id.data").

One cast can be dropped, so at least for "of_device_id.data" case there
will be no casts at all.  This makes the code a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220308080919.152715-4-krzysztof.kozlowski@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/samsung_tty.c

@@ -2634,9 +2634,9 @@ static struct s3c24xx_serial_drv_data s3c2410_serial_drv_data = {
 		.ufcon		= S3C2410_UFCON_DEFAULT,
 	},
 };
-#define S3C2410_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c2410_serial_drv_data)
+#define S3C2410_SERIAL_DRV_DATA (&s3c2410_serial_drv_data)
 #else
-#define S3C2410_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#define S3C2410_SERIAL_DRV_DATA NULL
 #endif
 
 #ifdef CONFIG_CPU_S3C2412
@@ -2663,9 +2663,9 @@ static struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
 		.ufcon		= S3C2410_UFCON_DEFAULT,
 	},
 };
-#define S3C2412_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c2412_serial_drv_data)
+#define S3C2412_SERIAL_DRV_DATA (&s3c2412_serial_drv_data)
 #else
-#define S3C2412_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#define S3C2412_SERIAL_DRV_DATA NULL
 #endif
 
 #if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2416) || \
@@ -2694,9 +2694,9 @@ static struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
 		.ufcon		= S3C2410_UFCON_DEFAULT,
 	},
 };
-#define S3C2440_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c2440_serial_drv_data)
+#define S3C2440_SERIAL_DRV_DATA (&s3c2440_serial_drv_data)
 #else
-#define S3C2440_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#define S3C2440_SERIAL_DRV_DATA NULL
 #endif
 
 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
@@ -2723,9 +2723,9 @@ static struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
 		.ufcon		= S3C2410_UFCON_DEFAULT,
 	},
 };
-#define S3C6400_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c6400_serial_drv_data)
+#define S3C6400_SERIAL_DRV_DATA (&s3c6400_serial_drv_data)
 #else
-#define S3C6400_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#define S3C6400_SERIAL_DRV_DATA NULL
 #endif
 
 #ifdef CONFIG_CPU_S5PV210
@@ -2752,9 +2752,9 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
 	},
 	.fifosize = { 256, 64, 16, 16 },
 };
-#define S5PV210_SERIAL_DRV_DATA ((kernel_ulong_t)&s5pv210_serial_drv_data)
+#define S5PV210_SERIAL_DRV_DATA (&s5pv210_serial_drv_data)
 #else
-#define S5PV210_SERIAL_DRV_DATA	(kernel_ulong_t)NULL
+#define S5PV210_SERIAL_DRV_DATA	NULL
 #endif
 
 #if defined(CONFIG_ARCH_EXYNOS)
@@ -2796,14 +2796,14 @@ static struct s3c24xx_serial_drv_data exynos850_serial_drv_data = {
 	.fifosize = { 256, 64, 64, 64 },
 };
 
-#define EXYNOS4210_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos4210_serial_drv_data)
-#define EXYNOS5433_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos5433_serial_drv_data)
-#define EXYNOS850_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos850_serial_drv_data)
+#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)
 
 #else
-#define EXYNOS4210_SERIAL_DRV_DATA ((kernel_ulong_t)NULL)
-#define EXYNOS5433_SERIAL_DRV_DATA ((kernel_ulong_t)NULL)
-#define EXYNOS850_SERIAL_DRV_DATA ((kernel_ulong_t)NULL)
+#define EXYNOS4210_SERIAL_DRV_DATA NULL
+#define EXYNOS5433_SERIAL_DRV_DATA NULL
+#define EXYNOS850_SERIAL_DRV_DATA NULL
 #endif
 
 #ifdef CONFIG_ARCH_APPLE
@@ -2829,39 +2829,39 @@ static struct s3c24xx_serial_drv_data s5l_serial_drv_data = {
 		.ufcon		= S3C2410_UFCON_DEFAULT,
 	},
 };
-#define S5L_SERIAL_DRV_DATA ((kernel_ulong_t)&s5l_serial_drv_data)
+#define S5L_SERIAL_DRV_DATA (&s5l_serial_drv_data)
 #else
-#define S5L_SERIAL_DRV_DATA ((kernel_ulong_t)NULL)
+#define S5L_SERIAL_DRV_DATA NULL
 #endif
 
 static const struct platform_device_id s3c24xx_serial_driver_ids[] = {
 	{
 		.name		= "s3c2410-uart",
-		.driver_data	= S3C2410_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)S3C2410_SERIAL_DRV_DATA,
 	}, {
 		.name		= "s3c2412-uart",
-		.driver_data	= S3C2412_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)S3C2412_SERIAL_DRV_DATA,
 	}, {
 		.name		= "s3c2440-uart",
-		.driver_data	= S3C2440_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)S3C2440_SERIAL_DRV_DATA,
 	}, {
 		.name		= "s3c6400-uart",
-		.driver_data	= S3C6400_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)S3C6400_SERIAL_DRV_DATA,
 	}, {
 		.name		= "s5pv210-uart",
-		.driver_data	= S5PV210_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)S5PV210_SERIAL_DRV_DATA,
 	}, {
 		.name		= "exynos4210-uart",
-		.driver_data	= EXYNOS4210_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)EXYNOS4210_SERIAL_DRV_DATA,
 	}, {
 		.name		= "exynos5433-uart",
-		.driver_data	= EXYNOS5433_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)EXYNOS5433_SERIAL_DRV_DATA,
 	}, {
 		.name		= "s5l-uart",
-		.driver_data	= S5L_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)S5L_SERIAL_DRV_DATA,
 	}, {
 		.name		= "exynos850-uart",
-		.driver_data	= EXYNOS850_SERIAL_DRV_DATA,
+		.driver_data	= (kernel_ulong_t)EXYNOS850_SERIAL_DRV_DATA,
 	},
 	{ },
 };
@@ -2870,23 +2870,23 @@ MODULE_DEVICE_TABLE(platform, s3c24xx_serial_driver_ids);
 #ifdef CONFIG_OF
 static const struct of_device_id s3c24xx_uart_dt_match[] = {
 	{ .compatible = "samsung,s3c2410-uart",
-		.data = (void *)S3C2410_SERIAL_DRV_DATA },
+		.data = S3C2410_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,s3c2412-uart",
-		.data = (void *)S3C2412_SERIAL_DRV_DATA },
+		.data = S3C2412_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,s3c2440-uart",
-		.data = (void *)S3C2440_SERIAL_DRV_DATA },
+		.data = S3C2440_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,s3c6400-uart",
-		.data = (void *)S3C6400_SERIAL_DRV_DATA },
+		.data = S3C6400_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,s5pv210-uart",
-		.data = (void *)S5PV210_SERIAL_DRV_DATA },
+		.data = S5PV210_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,exynos4210-uart",
-		.data = (void *)EXYNOS4210_SERIAL_DRV_DATA },
+		.data = EXYNOS4210_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,exynos5433-uart",
-		.data = (void *)EXYNOS5433_SERIAL_DRV_DATA },
+		.data = EXYNOS5433_SERIAL_DRV_DATA },
 	{ .compatible = "apple,s5l-uart",
-		.data = (void *)S5L_SERIAL_DRV_DATA },
+		.data = S5L_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,exynos850-uart",
-		.data = (void *)EXYNOS850_SERIAL_DRV_DATA },
+		.data = EXYNOS850_SERIAL_DRV_DATA },
 	{},
 };
 MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match);