drm/exynos: clean up machine compatible string check

Use 'for' statemant instead of hard-coded 'if' statement.

Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index c5cb8b6c85a960537bdc418a65f923f02df418b5..495826f73c2a39f7ecd8becb261d7f10035a9d38 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -610,6 +610,12 @@ static int exynos_drm_platform_remove(struct platform_device *pdev)
        return 0;
 }
 
+static const char * const strings[] = {
+       "samsung,exynos3",
+       "samsung,exynos4",
+       "samsung,exynos5",
+};
+
 static struct platform_driver exynos_drm_platform_driver = {
        .probe  = exynos_drm_platform_probe,
        .remove = exynos_drm_platform_remove,
@@ -622,6 +628,7 @@ static struct platform_driver exynos_drm_platform_driver = {
 
 static int exynos_drm_init(void)
 {
+       bool is_exynos = false;
        int ret, i, j;
 
        /*
@@ -631,9 +638,14 @@ static int exynos_drm_init(void)
         * by Exynos drm driver when using multi-platform kernel.
         * So these codes will be replaced with more generic way later.
         */
-       if (!of_machine_is_compatible("samsung,exynos3") &&
-                       !of_machine_is_compatible("samsung,exynos4") &&
-                       !of_machine_is_compatible("samsung,exynos5"))
+       for (i = 0; i < ARRAY_SIZE(strings); i++) {
+               if (of_machine_is_compatible(strings[i])) {
+                       is_exynos = true;
+                       break;
+               }
+       }
+
+       if (!is_exynos)
                return -ENODEV;
 
        exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,