[PATCH V2 1/2] ARM: SAMSUNG: Add SAMSUNG_PM config option to select pm

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This patch enables the selection of samsung pm related stuffs
when SAMSUNG_PM config is enabled and not just when generic PM
config is enabled. Power management for s3c64XX and s3c24XX
is enabled by default and for other platform depends on S5P_PM.
This patch also fixes the following compilation error's when compiling
a platform like exynos5440 which does not select pm stuffs.

arch/arm/mach-exynos/built-in.o: In function `__virt_to_phys':
linux/arch/arm/include/asm/memory.h:175: undefined reference to `s3c_cpu_resume'
linux/arch/arm/include/asm/memory.h:175: undefined reference to `s3c_cpu_resume'
linux/arch/arm/include/asm/memory.h:175: undefined reference to `s3c_cpu_resume'
linux/arch/arm/include/asm/memory.h:175: undefined reference to `s3c_cpu_resume'
arch/arm/mach-exynos/built-in.o: In function `exynos5_init_irq':
linux/arch/arm/mach-exynos/common.c:492: undefined reference to `s3c_irq_wake'
linux/arch/arm/mach-exynos/common.c:492: undefined reference to `s3c_irq_wake'
arch/arm/mach-exynos/built-in.o: In function `exynos4_init_irq':
linux/arch/arm/mach-exynos/common.c:476: undefined reference to `s3c_irq_wake'
linux/arch/arm/mach-exynos/common.c:476: undefined reference to `s3c_irq_wake'
arch/arm/plat-samsung/built-in.o: In function `s3c_irqext_wake':
linux/arch/arm/plat-samsung/pm.c:144: undefined reference to `s3c_irqwake_eintallow'
linux/arch/arm/plat-samsung/pm.c:144: undefined reference to `s3c_irqwake_eintallow'
arch/arm/plat-samsung/built-in.o: In function `s3c_pm_enter':
linux/arch/arm/plat-samsung/pm.c:263: undefined reference to `s3c_irqwake_intallow'
linux/arch/arm/plat-samsung/pm.c:263: undefined reference to `s3c_irqwake_intallow'
linux/arch/arm/plat-samsung/pm.c:264: undefined reference to `s3c_irqwake_eintallow'
linux/arch/arm/plat-samsung/pm.c:264: undefined reference to `s3c_irqwake_eintallow'
linux/arch/arm/plat-samsung/pm.c:275: undefined reference to `s3c_pm_save_core'
linux/arch/arm/plat-samsung/pm.c:279: undefined reference to `s3c_pm_configure_extint'
linux/arch/arm/plat-samsung/pm.c:310: undefined reference to `s3c_pm_restore_core'
make: *** [vmlinux] Error 1

Signed-off-by: Amit Daniel Kachhap <amit.daniel@xxxxxxxxxxx>
---
 arch/arm/mach-exynos/Makefile           |    2 +-
 arch/arm/mach-exynos/common.c           |    2 +-
 arch/arm/mach-exynos/common.h           |    1 -
 arch/arm/mach-exynos/cpuidle.c          |    1 +
 arch/arm/plat-samsung/Kconfig           |    7 +++++++
 arch/arm/plat-samsung/Makefile          |    3 +--
 arch/arm/plat-samsung/include/plat/pm.h |    8 ++++----
 7 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 9811f87..3fa277a 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -14,7 +14,7 @@ obj-				:=
 
 obj-$(CONFIG_ARCH_EXYNOS)	+= common.o
 
-obj-$(CONFIG_PM)		+= pm.o
+obj-$(CONFIG_S5P_PM)		+= pm.o
 obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o
 obj-$(CONFIG_CPU_IDLE)		+= cpuidle.o
 
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 9834357..d2b4f54 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -799,7 +799,7 @@ static struct irq_chip exynos_irq_eint = {
 	.irq_mask_ack	= exynos_irq_eint_maskack,
 	.irq_ack	= exynos_irq_eint_ack,
 	.irq_set_type	= exynos_irq_eint_set_type,
-#ifdef CONFIG_PM
+#ifdef CONFIG_S5P_PM
 	.irq_set_wake	= s3c_irqext_wake,
 #endif
 };
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 11fc1e2..f2b2e23 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -98,6 +98,5 @@ struct exynos_pmu_conf {
 };
 
 extern void exynos_sys_powerdown_conf(enum sys_powerdown mode);
-extern void s3c_cpu_resume(void);
 
 #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index 4667907..2d071c6 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -25,6 +25,7 @@
 #include <mach/regs-pmu.h>
 
 #include <plat/cpu.h>
+#include <plat/pm.h>
 
 #include "common.h"
 
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index f8ed2de..6c25aa6 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -31,6 +31,13 @@ config PLAT_S5P
 	help
 	  Base platform code for Samsung's S5P series SoC.
 
+config SAMSUNG_PM
+	bool
+	depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || S5P_PM)
+	default y
+	help
+	  Base platform power management code for samsung code
+
 if PLAT_SAMSUNG
 
 # boot configurations
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index a23c460..1c406b3 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -51,8 +51,7 @@ obj-$(CONFIG_SAMSUNG_DMADEV)	+= dma-ops.o
 
 # PM support
 
-obj-$(CONFIG_PM)		+= pm.o
-obj-$(CONFIG_PM)		+= pm-gpio.o
+obj-$(CONFIG_SAMSUNG_PM)	+= pm.o pm-gpio.o
 obj-$(CONFIG_SAMSUNG_PM_CHECK)	+= pm-check.o
 
 obj-$(CONFIG_SAMSUNG_WAKEMASK)	+= wakeup-mask.o
diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h
index f6fcade..46e2c82 100644
--- a/arch/arm/plat-samsung/include/plat/pm.h
+++ b/arch/arm/plat-samsung/include/plat/pm.h
@@ -19,7 +19,7 @@
 
 struct device;
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_SAMSUNG_PM
 
 extern __init int s3c_pm_init(void);
 extern __init int s3c64xx_pm_init(void);
@@ -58,8 +58,6 @@ extern unsigned char pm_uart_udivslot;  /* true to save UART UDIVSLOT */
 
 /* from sleep.S */
 
-extern void s3c_cpu_resume(void);
-
 extern int s3c2410_cpu_suspend(unsigned long);
 
 /* sleep save info */
@@ -106,12 +104,14 @@ extern void s3c_pm_do_save(struct sleep_save *ptr, int count);
 extern void s3c_pm_do_restore(struct sleep_save *ptr, int count);
 extern void s3c_pm_do_restore_core(struct sleep_save *ptr, int count);
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_SAMSUNG_PM
 extern int s3c_irq_wake(struct irq_data *data, unsigned int state);
 extern int s3c_irqext_wake(struct irq_data *data, unsigned int state);
+extern void s3c_cpu_resume(void);
 #else
 #define s3c_irq_wake NULL
 #define s3c_irqext_wake NULL
+#define s3c_cpu_resume NULL
 #endif
 
 /* PM debug functions */
-- 
1.7.1

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