ARM: SAMSUNG: Compile legacy IRQ and GPIO PM code only with ATAGS support

This patch adds new Kconfig symbols, SAMSUNG_PM_GPIO and S5P_IRQ_PM that
get enabled when GPIO_SAMSUNG, PM and S5P_PM are enabled, but only if
SAMSUNG_ATAGS is selected.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/plat-samsung/Kconfig

@@ -421,6 +421,19 @@ config S3C_DMA
 	help
 	  Internal configuration for S3C DMA core
 
+config S5P_IRQ_PM
+	bool
+	default y if S5P_PM
+	help
+	  Legacy IRQ power management for S5P platforms
+
+config SAMSUNG_PM_GPIO
+	bool
+	default y if GPIO_SAMSUNG && PM
+	help
+	  Include legacy GPIO power management code for platforms not using
+	  pinctrl-samsung driver.
+
 endif
 
 config SAMSUNG_DMADEV

arch/arm/plat-samsung/Makefile

@@ -52,10 +52,11 @@ obj-$(CONFIG_SAMSUNG_DMADEV)	+= dma-ops.o
 # PM support
 
 obj-$(CONFIG_PM)		+= pm.o
-obj-$(CONFIG_PM)		+= pm-gpio.o
+obj-$(CONFIG_SAMSUNG_PM_GPIO)	+= pm-gpio.o
 obj-$(CONFIG_SAMSUNG_PM_CHECK)	+= pm-check.o
 
 obj-$(CONFIG_SAMSUNG_WAKEMASK)	+= wakeup-mask.o
 
-obj-$(CONFIG_S5P_PM)		+= s5p-pm.o s5p-irq-pm.o
+obj-$(CONFIG_S5P_PM)		+= s5p-pm.o
+obj-$(CONFIG_S5P_IRQ_PM)	+= s5p-irq-pm.o
 obj-$(CONFIG_S5P_SLEEP)		+= s5p-sleep.o