ARM: EXYNOS: Pass the AFTR callback to the platform_data

No more dependency on the arch code. The platform_data field is used to set the
PM callback as the other cpuidle drivers.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/cpuidle.c

@@ -28,7 +28,7 @@
 
 #include <mach/map.h>
 
-#include "common.h"
+static void (*exynos_enter_aftr)(void);
 
 static int idle_finisher(unsigned long flags)
 {
@@ -87,6 +87,8 @@ static int exynos_cpuidle_probe(struct platform_device *pdev)
 {
 	int ret;
 
+	exynos_enter_aftr = (void *)(pdev->dev.platform_data);
+
 	ret = cpuidle_register(&exynos_idle_driver, NULL);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register cpuidle driver\n");

arch/arm/mach-exynos/exynos.c

@@ -171,8 +171,9 @@ void exynos_restart(enum reboot_mode mode, const char *cmd)
 }
 
 static struct platform_device exynos_cpuidle = {
-	.name		= "exynos_cpuidle",
-	.id		= -1,
+	.name              = "exynos_cpuidle",
+	.dev.platform_data = exynos_enter_aftr,
+	.id                = -1,
 };
 
 void __init exynos_cpuidle_init(void)