Rename CONFIG_PWM to CONFIG_PWM_S5P and move to Kconfig

We rename the S5P specific "CONFIG_PWM" to CONFIG_PWM_S5P and move it to
Kconfig.  Given the usage of CONFIG_PWM_NX, we have that select this new
symbol.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/arch/arm/cpu/armv7/s5p-common/Makefile b/arch/arm/cpu/armv7/s5p-common/Makefile
index bfe0238..0985420 100644
--- a/arch/arm/cpu/armv7/s5p-common/Makefile
+++ b/arch/arm/cpu/armv7/s5p-common/Makefile
@@ -3,14 +3,13 @@
 # Copyright (C) 2009 Samsung Electronics
 # Minkyu Kang <mk7.kang@samsung.com>
 
+obj-$(CONFIG_PWM_S5P) += pwm.o
 ifdef CONFIG_ARCH_NEXELL
-obj-$(CONFIG_PWM_NX) += pwm.o
 obj-$(CONFIG_S5P4418_ONEWIRE) += pwm.o
 else
 obj-y += cpu_info.o
 ifndef CONFIG_SPL_BUILD
 obj-y += timer.o
 obj-y += sromc.o
-obj-$(CONFIG_PWM) += pwm.o
 endif
 endif
diff --git a/board/friendlyarm/Kconfig b/board/friendlyarm/Kconfig
index f8f9cfd..fa04727 100644
--- a/board/friendlyarm/Kconfig
+++ b/board/friendlyarm/Kconfig
@@ -11,6 +11,7 @@
 
 config PWM_NX
 	bool "PWM"
+	select PWM_S5P
 	help
 	  This enables LCD-Backlight control via PWM.
 endchoice
diff --git a/configs/s5p_goni_defconfig b/configs/s5p_goni_defconfig
index a010404..4d4005d 100644
--- a/configs/s5p_goni_defconfig
+++ b/configs/s5p_goni_defconfig
@@ -52,6 +52,7 @@
 CONFIG_MTD=y
 CONFIG_DM_PMIC=y
 CONFIG_DM_PMIC_MAX8998=y
+CONFIG_PWM_S5P=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_MANUFACTURER="Samsung"
diff --git a/configs/smdkc100_defconfig b/configs/smdkc100_defconfig
index 2c8bd1c..8c89c39 100644
--- a/configs/smdkc100_defconfig
+++ b/configs/smdkc100_defconfig
@@ -38,3 +38,4 @@
 CONFIG_MTD=y
 CONFIG_SMC911X=y
 CONFIG_SMC911X_BASE=0x98800300
+CONFIG_PWM_S5P=y
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index cb54e67..8fd5a2e 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -84,6 +84,11 @@
 	  useful. The PWM can be enabled but is not connected to any outputs
 	  so this is not very useful.
 
+config PWM_S5P
+	bool "Enable non-DM support for S5P PWM"
+	depends on (S5P || ARCH_NEXELL)
+	default y
+
 config PWM_SIFIVE
 	bool "Enable support for SiFive PWM"
 	depends on DM_PWM
diff --git a/include/configs/exynos-common.h b/include/configs/exynos-common.h
index 7986021..246aa9b 100644
--- a/include/configs/exynos-common.h
+++ b/include/configs/exynos-common.h
@@ -18,9 +18,6 @@
 
 /* select serial console configuration */
 
-/* PWM */
-#define CONFIG_PWM
-
 /* Miscellaneous configurable options */
 
 #endif	/* __CONFIG_H */
diff --git a/include/configs/s5p_goni.h b/include/configs/s5p_goni.h
index 8b7e2e5..d9eeec4 100644
--- a/include/configs/s5p_goni.h
+++ b/include/configs/s5p_goni.h
@@ -21,9 +21,6 @@
 /* MMC */
 #define SDHCI_MAX_HOSTS		4
 
-/* PWM */
-#define CONFIG_PWM			1
-
 /* USB Composite download gadget - g_dnl */
 #define DFU_DEFAULT_POLL_TIMEOUT 300
 
diff --git a/include/configs/smdkc100.h b/include/configs/smdkc100.h
index 5edf6f6..995623e 100644
--- a/include/configs/smdkc100.h
+++ b/include/configs/smdkc100.h
@@ -24,9 +24,6 @@
  * select serial console configuration
  */
 
-/* PWM */
-#define CONFIG_PWM			1
-
 #define COMMON_BOOT	"console=ttySAC0,115200n8" \
 				" mem=128M " \
 				" " CONFIG_MTDPARTS_DEFAULT