Merge tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt

Merge "Samsung DT 2nd updates for v3.17" from Kukjin Kim:

This is based on tags/exynos-power because this DT changes
are depending PMU cleanup.

Fixes boot for exynos5260 and exynos5410,
- Since exynos cannot boot without obtaining PMU address via
  DT from now on, add PMU node for exynos5260 and exynos5410

For preparing exynos5250-spring,
- move max77686 and cypress,cyapa trackpad from exynos5250-
  cros-common to exynos5250-snow DT file
(Note exynos5250-spring is not included in this branch yet)

For exynos3250,
- add TMU node and remove duplicated interrupt-parent
- add missing pinctrl property for uart0 and uart1

For exynos5250-smdk5250 board
- add max77686 pmic interrupt property which is connected to
  gpx3

* tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (28 commits)
  ARM: dts: Add missing pinctrl for uart0/1 for exynos3250
  ARM: dts: Remove duplicate 'interrput-parent' property for exynos3250
  ARM: dts: Add TMU dt node to monitor the temperature for exynos3250
  ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250
  ARM: dts: cypress,cyapa trackpad is exynos5250-Snow only
  ARM: dts: max77686 is exynos5250-snow only
  ARM: EXYNOS: Add exynos5260 PMU compatible string to DT match table
  ARM: dts: Add PMU DT node for exynos5260 SoC
  ARM: EXYNOS: Add support for Exynos5410 PMU
  ARM: dts: Add PMU to exynos5410
  ARM: dts: Document exynos5410 PMU
  ARM: EXYNOS: Move cpufreq and cpuidle device registration to init_machine
  ARM: EXYNOS: Refactored code for using PMU address via DT
  ARM: EXYNOS: Support cluster power off on exynos5420/5800
  ARM: EXYNOS: populate suspend and powered_up callbacks for mcpm
  ARM: EXYNOS: do not allow cpuidle registration for exynos5420
  cpuidle: big.LITTLE: init driver for exynos5420
  cpuidle: big.LITTLE: Add ARCH_EXYNOS entry in config
  ARM: EXYNOS: add generic function to calculate cpu number
  cpuidle: big.LITTLE: add of_device_id structure
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>

2 files changed, 12 insertions, 2 deletions

diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index b6d69e899f5d..2f6b33ea6e08 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -9,7 +9,7 @@ config ARM_ARMADA_370_XP_CPUIDLE
 
 config ARM_BIG_LITTLE_CPUIDLE
 	bool "Support for ARM big.LITTLE processors"
-	depends on ARCH_VEXPRESS_TC2_PM
+	depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS
 	select ARM_CPU_SUSPEND
 	select CPU_IDLE_MULTIPLE_DRIVERS
 	help
diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c
index b45fc6249041..344d79fa3407 100644
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -163,14 +163,24 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int cpu_id)
 	return 0;
 }
 
+static const struct of_device_id compatible_machine_match[] = {
+	{ .compatible = "arm,vexpress,v2p-ca15_a7" },
+	{ .compatible = "samsung,exynos5420" },
+	{},
+};
+
 static int __init bl_idle_init(void)
 {
 	int ret;
+	struct device_node *root = of_find_node_by_path("/");
+
+	if (!root)
+		return -ENODEV;
 
 	/*
 	 * Initialize the driver just for a compliant set of machines
 	 */
-	if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7"))
+	if (!of_match_node(compatible_machine_match, root))
 		return -ENODEV;
 	/*
 	 * For now the differentiation between little and big cores