X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=arch%2Farm%2Fmach-exynos%2Fexynos.c;h=5f8ddcdeeacf1117d92313e6cb34608be136a955;hb=5f1201d515819e7cfaaac3f0a30ff7b556261386;hp=4bd8b76538175aa2ba4ab3f58a127b94bda08939;hpb=21dc2e6c6d552702736ad3603fe9b074654d3932;p=firefly-linux-kernel-4.4.55.git

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 4bd8b7653817..5f8ddcdeeacf 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -224,6 +224,25 @@ static void __init exynos_init_irq(void)
 	exynos_map_pmu();
 }
 
+static const struct of_device_id exynos_cpufreq_matches[] = {
+	{ .compatible = "samsung,exynos4210", .data = "cpufreq-dt" },
+	{ /* sentinel */ }
+};
+
+static void __init exynos_cpufreq_init(void)
+{
+	struct device_node *root = of_find_node_by_path("/");
+	const struct of_device_id *match;
+
+	match = of_match_node(exynos_cpufreq_matches, root);
+	if (!match) {
+		platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
+		return;
+	}
+
+	platform_device_register_simple(match->data, -1, NULL, 0);
+}
+
 static void __init exynos_dt_machine_init(void)
 {
 	/*
@@ -246,7 +265,7 @@ static void __init exynos_dt_machine_init(void)
 	    of_machine_is_compatible("samsung,exynos5250"))
 		platform_device_register(&exynos_cpuidle);
 
-	platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
+	exynos_cpufreq_init();
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }