cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq

This patch moves cpufreq driver of Samsung's ARM based
s3c24xx platform to drivers/cpufreq.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

14 files changed, 100 insertions, 103 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d423d58f938d..f6762794fbb4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2053,53 +2053,6 @@ menu "CPU Power Management"
 
 if ARCH_HAS_CPUFREQ
 source "drivers/cpufreq/Kconfig"
-
-config CPU_FREQ_S3C
-        bool
-        help
-          Internal configuration node for common cpufreq on Samsung SoC
-
-config CPU_FREQ_S3C24XX
-        bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
-        depends on ARCH_S3C24XX && CPU_FREQ
-        select CPU_FREQ_S3C
-        help
-          This enables the CPUfreq driver for the Samsung S3C24XX family
-          of CPUs.
-
-          For details, take a look at <file:Documentation/cpu-freq>.
-
-          If in doubt, say N.
-
-config CPU_FREQ_S3C24XX_PLL
-        bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
-        depends on CPU_FREQ_S3C24XX
-        help
-          Compile in support for changing the PLL frequency from the
-          S3C24XX series CPUfreq driver. The PLL takes time to settle
-          after a frequency change, so by default it is not enabled.
-
-          This also means that the PLL tables for the selected CPU(s) will
-          be built which may increase the size of the kernel image.
-
-config CPU_FREQ_S3C24XX_DEBUG
-        bool "Debug CPUfreq Samsung driver core"
-        depends on CPU_FREQ_S3C24XX
-        help
-          Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
-
-config CPU_FREQ_S3C24XX_IODEBUG
-        bool "Debug CPUfreq Samsung driver IO timing"
-        depends on CPU_FREQ_S3C24XX
-        help
-          Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
-
-config CPU_FREQ_S3C24XX_DEBUGFS
-        bool "Export debugfs for CPUFreq"
-        depends on CPU_FREQ_S3C24XX && DEBUG_FS
-        help
-          Export status information via debugfs.
-
 endif
 
 source "drivers/cpuidle/Kconfig"
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index f2f7088bfd22..ed8aadc646f9 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -28,7 +28,7 @@ config CPU_S3C2410
         select CPU_ARM920T
         select CPU_LLSERIAL_S3C2410
         select S3C2410_CLOCK
-        select S3C2410_CPUFREQ if CPU_FREQ_S3C24XX
+        select ARM_S3C2410_CPUFREQ if ARM_S3C24XX_CPUFREQ
         select S3C2410_PM if PM
         select SAMSUNG_HRT
         help
@@ -204,27 +204,38 @@ config S3C24XX_GPIO_EXTRA128
           Add an extra 128 gpio numbers to the available GPIO pool. This is
           available for boards that need extra gpios for external devices.
 
+config S3C24XX_PLL
+        bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
+        depends on ARM_S3C24XX
+        help
+          Compile in support for changing the PLL frequency from the
+          S3C24XX series CPUfreq driver. The PLL takes time to settle
+          after a frequency change, so by default it is not enabled.
+
+          This also means that the PLL tables for the selected CPU(s) will
+          be built which may increase the size of the kernel image.
+
 # cpu frequency items common between s3c2410 and s3c2440/s3c2442
 
 config S3C2410_IOTIMING
         bool
-        depends on CPU_FREQ_S3C24XX
+        depends on ARM_S3C24XX_CPUFREQ
         help
           Internal node to select io timing code that is common to the s3c2410
           and s3c2440/s3c2442 cpu frequency support.
 
 config S3C2410_CPUFREQ_UTILS
-        bool
-        depends on CPU_FREQ_S3C24XX
-        help
-          Internal node to select timing code that is common to the s3c2410
-          and s3c2440/s3c244 cpu frequency support.
+       bool
+       depends on ARM_S3C24XX_CPUFREQ
+       help
+         Internal node to select timing code that is common to the s3c2410
+         and s3c2440/s3c244 cpu frequency support.
 
 # cpu frequency support common to s3c2412, s3c2413 and s3c2442
 
 config S3C2412_IOTIMING
         bool
-        depends on CPU_FREQ_S3C24XX && (CPU_S3C2412 || CPU_S3C2443)
+        depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2412 || CPU_S3C2443)
         help
           Intel node to select io timing code that is common to the s3c2412
           and the s3c2443.
@@ -233,16 +244,9 @@ config S3C2412_IOTIMING
 
 if CPU_S3C2410
 
-config S3C2410_CPUFREQ
-        bool
-        depends on CPU_FREQ_S3C24XX
-        select S3C2410_CPUFREQ_UTILS
-        help
-          CPU Frequency scaling support for S3C2410
-
 config S3C2410_PLL
         bool
-        depends on S3C2410_CPUFREQ && CPU_FREQ_S3C24XX_PLL
+        depends on ARM_S3C2410_CPUFREQ && S3C24XX_PLL
         default y
         help
           Select the PLL table for the S3C2410
@@ -278,7 +282,7 @@ config ARCH_BAST
         bool "Simtec Electronics BAST (EB2410ITX)"
         select ISA
         select MACH_BAST_IDE
-        select S3C2410_IOTIMING if S3C2410_CPUFREQ
+        select S3C2410_IOTIMING if ARM_S3C2410_CPUFREQ
         select S3C24XX_DCLK
         select S3C24XX_SIMTEC_NOR
         select S3C24XX_SIMTEC_PM if PM
@@ -385,14 +389,6 @@ config CPU_S3C2412_ONLY
                    !CPU_S3C2442 && !CPU_S3C2443
         default y
 
-config S3C2412_CPUFREQ
-        bool
-        depends on CPU_FREQ_S3C24XX
-        default y
-        select S3C2412_IOTIMING
-        help
-          CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
-
 config S3C2412_DMA
         bool
         help
@@ -494,14 +490,6 @@ endif	# CPU_S3C2416
 
 if CPU_S3C2440
 
-config S3C2440_CPUFREQ
-        bool "S3C2440/S3C2442 CPU Frequency scaling support"
-        depends on CPU_FREQ_S3C24XX && (CPU_S3C2440 || CPU_S3C2442)
-        default y
-        select S3C2410_CPUFREQ_UTILS
-        help
-          CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
-
 config S3C2440_DMA
         bool
         help
@@ -521,15 +509,15 @@ config S3C2440_XTAL_16934400
 
 config S3C2440_PLL_12000000
         bool
-        depends on S3C2440_CPUFREQ && S3C2440_XTAL_12000000
-        default y if CPU_FREQ_S3C24XX_PLL
+        depends on ARM_S3C2440_CPUFREQ && S3C2440_XTAL_12000000
+        default y if S3C24XX_PLL
         help
           PLL tables for S3C2440 or S3C2442 CPUs with 12MHz crystals.
 
 config S3C2440_PLL_16934400
         bool
-        depends on S3C2440_CPUFREQ && S3C2440_XTAL_16934400
-        default y if CPU_FREQ_S3C24XX_PLL
+        depends on ARM_S3C2440_CPUFREQ && S3C2440_XTAL_16934400
+        default y if S3C24XX_PLL
         help
           PLL tables for S3C2440 or S3C2442 CPUs with 16.934MHz crystals.
 
@@ -583,7 +571,7 @@ config MACH_NEXCODER_2440
 
 config MACH_OSIRIS
         bool "Simtec IM2440D20 (OSIRIS) module"
-        select S3C2410_IOTIMING if S3C2440_CPUFREQ
+        select S3C2410_IOTIMING if ARM_S3C2440_CPUFREQ
         select S3C2440_XTAL_12000000
         select S3C24XX_DCLK
         select S3C24XX_GPIO_EXTRA128
@@ -655,7 +643,7 @@ config MACH_RX1950
         bool "HP iPAQ rx1950"
         select I2C
         select PM_H1940 if PM
-        select S3C2410_IOTIMING if S3C2440_CPUFREQ
+        select S3C2410_IOTIMING if ARM_S3C2440_CPUFREQ
         select S3C2440_XTAL_16934400
         select S3C24XX_DCLK
         select S3C24XX_PWM
diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile
index 6f46ecfc8396..a3b495a4bba0 100644
--- a/arch/arm/mach-s3c24xx/Makefile
+++ b/arch/arm/mach-s3c24xx/Makefile
@@ -17,13 +17,11 @@ obj-				:=
 obj-y                           += common.o
 
 obj-$(CONFIG_CPU_S3C2410)       += s3c2410.o
-obj-$(CONFIG_S3C2410_CPUFREQ)   += cpufreq-s3c2410.o
 obj-$(CONFIG_S3C2410_DMA)       += dma-s3c2410.o
 obj-$(CONFIG_S3C2410_PLL)       += pll-s3c2410.o
 obj-$(CONFIG_S3C2410_PM)        += pm-s3c2410.o sleep-s3c2410.o
 
 obj-$(CONFIG_CPU_S3C2412)       += s3c2412.o clock-s3c2412.o
-obj-$(CONFIG_S3C2412_CPUFREQ)   += cpufreq-s3c2412.o
 obj-$(CONFIG_S3C2412_DMA)       += dma-s3c2412.o
 obj-$(CONFIG_S3C2412_PM)        += pm-s3c2412.o
 obj-$(CONFIG_S3C2412_PM_SLEEP)  += sleep-s3c2412.o
@@ -34,7 +32,6 @@ obj-$(CONFIG_S3C2416_PM)	+= pm-s3c2416.o
 obj-$(CONFIG_CPU_S3C2440)       += s3c2440.o clock-s3c2440.o
 obj-$(CONFIG_CPU_S3C2442)       += s3c2442.o
 obj-$(CONFIG_CPU_S3C244X)       += s3c244x.o clock-s3c244x.o
-obj-$(CONFIG_S3C2440_CPUFREQ)   += cpufreq-s3c2440.o
 obj-$(CONFIG_S3C2440_DMA)       += dma-s3c2440.o
 obj-$(CONFIG_S3C2440_PLL_12000000) += pll-s3c2440-12000000.o
 obj-$(CONFIG_S3C2440_PLL_16934400) += pll-s3c2440-16934400.o
@@ -59,9 +56,6 @@ obj-$(CONFIG_S3C2412_IOTIMING)	+= iotiming-s3c2412.o
 obj-$(CONFIG_S3C2443_COMMON)    += common-s3c2443.o
 obj-$(CONFIG_S3C2443_DMA)       += dma-s3c2443.o
 
-obj-$(CONFIG_CPU_FREQ_S3C24XX)  += cpufreq.o
-obj-$(CONFIG_CPU_FREQ_S3C24XX_DEBUGFS) += cpufreq-debugfs.o
-
 #
 # machine support
 # following is ordered alphabetically by option text.
diff --git a/arch/arm/mach-s3c24xx/s3c2412.h b/arch/arm/mach-s3c24xx/include/mach/s3c2412.h
index 548ced42cbb7..548ced42cbb7 100644
--- a/arch/arm/mach-s3c24xx/s3c2412.h
+++ b/arch/arm/mach-s3c24xx/include/mach/s3c2412.h
diff --git a/arch/arm/mach-s3c24xx/iotiming-s3c2412.c b/arch/arm/mach-s3c24xx/iotiming-s3c2412.c
index 663436d9db01..bd064c05c473 100644
--- a/arch/arm/mach-s3c24xx/iotiming-s3c2412.c
+++ b/arch/arm/mach-s3c24xx/iotiming-s3c2412.c
@@ -31,7 +31,7 @@
 #include <plat/cpu-freq-core.h>
 #include <plat/clock.h>
 
-#include "s3c2412.h"
+#include <mach/s3c2412.h>
 
 #define print_ns(x) ((x) / 10), ((x) % 10)
 
diff --git a/arch/arm/plat-samsung/include/plat/cpu-freq-core.h b/arch/arm/plat-samsung/include/plat/cpu-freq-core.h
index 95509d8eb140..d7e17150028a 100644
--- a/arch/arm/plat-samsung/include/plat/cpu-freq-core.h
+++ b/arch/arm/plat-samsung/include/plat/cpu-freq-core.h
@@ -202,7 +202,7 @@ extern int s3c_plltab_register(struct cpufreq_frequency_table *plls,
 extern struct s3c_cpufreq_config *s3c_cpufreq_getconfig(void);
 extern struct s3c_iotimings *s3c_cpufreq_getiotimings(void);
 
-#ifdef CONFIG_CPU_FREQ_S3C24XX_DEBUGFS
+#ifdef CONFIG_ARM_S3C24XX_CPUFREQ_DEBUGFS
 #define s3c_cpufreq_debugfs_call(x) x
 #else
 #define s3c_cpufreq_debugfs_call(x) NULL
@@ -259,17 +259,17 @@ extern void s3c2412_iotiming_set(struct s3c_cpufreq_config *cfg,
 #define s3c2412_iotiming_set NULL
 #endif /* CONFIG_S3C2412_IOTIMING */
 
-#ifdef CONFIG_CPU_FREQ_S3C24XX_DEBUG
+#ifdef CONFIG_ARM_S3C24XX_CPUFREQ_DEBUG
 #define s3c_freq_dbg(x...) printk(KERN_INFO x)
 #else
 #define s3c_freq_dbg(x...) do { if (0) printk(x); } while (0)
-#endif /* CONFIG_CPU_FREQ_S3C24XX_DEBUG */
+#endif /* CONFIG_ARM_S3C24XX_CPUFREQ_DEBUG */
 
-#ifdef CONFIG_CPU_FREQ_S3C24XX_IODEBUG
+#ifdef CONFIG_ARM_S3C24XX_CPUFREQ_IODEBUG
 #define s3c_freq_iodbg(x...) printk(KERN_INFO x)
 #else
 #define s3c_freq_iodbg(x...) do { if (0) printk(x); } while (0)
-#endif /* CONFIG_CPU_FREQ_S3C24XX_IODEBUG */
+#endif /* CONFIG_ARM_S3C24XX_CPUFREQ_IODEBUG */
 
 static inline int s3c_cpufreq_addfreq(struct cpufreq_frequency_table *table,
                                       int index, size_t table_size,
diff --git a/arch/arm/plat-samsung/include/plat/cpu-freq.h b/arch/arm/plat-samsung/include/plat/cpu-freq.h
index 80c4a809c721..85517ab962ae 100644
--- a/arch/arm/plat-samsung/include/plat/cpu-freq.h
+++ b/arch/arm/plat-samsung/include/plat/cpu-freq.h
@@ -126,7 +126,7 @@ struct s3c_cpufreq_board {
 };
 
 /* Things depending on frequency scaling. */
-#ifdef CONFIG_CPU_FREQ_S3C
+#ifdef CONFIG_ARM_S3C_CPUFREQ
 #define __init_or_cpufreq
 #else
 #define __init_or_cpufreq __init
@@ -134,7 +134,7 @@ struct s3c_cpufreq_board {
 
 /* Board functions */
 
-#ifdef CONFIG_CPU_FREQ_S3C
+#ifdef CONFIG_ARM_S3C_CPUFREQ
 extern int s3c_cpufreq_setboard(struct s3c_cpufreq_board *board);
 #else
 
@@ -142,4 +142,4 @@ static inline int s3c_cpufreq_setboard(struct s3c_cpufreq_board *board)
 {
         return 0;
 }
-#endif  /* CONFIG_CPU_FREQ_S3C */
+#endif  /* CONFIG_ARM_S3C_CPUFREQ */
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index f3af18b9acc5..bbcd7199257b 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -95,6 +95,56 @@ config ARM_OMAP2PLUS_CPUFREQ
         default ARCH_OMAP2PLUS
         select CPU_FREQ_TABLE
 
+config ARM_S3C_CPUFREQ
+        bool
+        help
+          Internal configuration node for common cpufreq on Samsung SoC
+
+config ARM_S3C24XX_CPUFREQ
+        bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
+        depends on ARCH_S3C24XX
+        select ARM_S3C_CPUFREQ
+        help
+          This enables the CPUfreq driver for the Samsung S3C24XX family
+          of CPUs.
+
+          For details, take a look at <file:Documentation/cpu-freq>.
+
+          If in doubt, say N.
+
+config ARM_S3C24XX_CPUFREQ_DEBUG
+        bool "Debug CPUfreq Samsung driver core"
+        depends on ARM_S3C24XX_CPUFREQ
+        help
+          Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
+
+config ARM_S3C24XX_CPUFREQ_IODEBUG
+        bool "Debug CPUfreq Samsung driver IO timing"
+        depends on ARM_S3C24XX_CPUFREQ
+        help
+          Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
+
+config ARM_S3C24XX_CPUFREQ_DEBUGFS
+        bool "Export debugfs for CPUFreq"
+        depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
+        help
+          Export status information via debugfs.
+
+config ARM_S3C2410_CPUFREQ
+        bool
+        depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
+        select S3C2410_CPUFREQ_UTILS
+        help
+          CPU Frequency scaling support for S3C2410
+
+config ARM_S3C2412_CPUFREQ
+        bool
+        depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
+        default y
+        select S3C2412_IOTIMING
+        help
+          CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
+
 config ARM_S3C2416_CPUFREQ
         bool "S3C2416 CPU Frequency scaling support"
         depends on CPU_S3C2416
@@ -117,6 +167,14 @@ config ARM_S3C2416_CPUFREQ_VCORESCALE
 
           If in doubt, say N.
 
+config ARM_S3C2440_CPUFREQ
+        bool "S3C2440/S3C2442 CPU Frequency scaling support"
+        depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
+        select S3C2410_CPUFREQ_UTILS
+        default y
+        help
+          CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
+
 config ARM_S3C64XX_CPUFREQ
         bool "Samsung S3C64XX"
         depends on CPU_S3C6410
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 315b9231feb1..6ad0b913ca17 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -65,7 +65,12 @@ obj-$(CONFIG_ARM_OMAP2PLUS_CPUFREQ)	+= omap-cpufreq.o
 obj-$(CONFIG_PXA25x)                    += pxa2xx-cpufreq.o
 obj-$(CONFIG_PXA27x)                    += pxa2xx-cpufreq.o
 obj-$(CONFIG_PXA3xx)                    += pxa3xx-cpufreq.o
+obj-$(CONFIG_ARM_S3C24XX_CPUFREQ)       += s3c24xx-cpufreq.o
+obj-$(CONFIG_ARM_S3C24XX_CPUFREQ_DEBUGFS) += s3c24xx-cpufreq-debugfs.o
+obj-$(CONFIG_ARM_S3C2410_CPUFREQ)       += s3c2410-cpufreq.o
+obj-$(CONFIG_ARM_S3C2412_CPUFREQ)       += s3c2412-cpufreq.o
 obj-$(CONFIG_ARM_S3C2416_CPUFREQ)       += s3c2416-cpufreq.o
+obj-$(CONFIG_ARM_S3C2440_CPUFREQ)       += s3c2440-cpufreq.o
 obj-$(CONFIG_ARM_S3C64XX_CPUFREQ)       += s3c64xx-cpufreq.o
 obj-$(CONFIG_ARM_S5PV210_CPUFREQ)       += s5pv210-cpufreq.o
 obj-$(CONFIG_ARM_SA1100_CPUFREQ)        += sa1100-cpufreq.o
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c b/drivers/cpufreq/s3c2410-cpufreq.c
index cfa0dd8723ec..cfa0dd8723ec 100644
--- a/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c
+++ b/drivers/cpufreq/s3c2410-cpufreq.c
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2412.c b/drivers/cpufreq/s3c2412-cpufreq.c
index 8bf0f3a77476..4645b4898996 100644
--- a/arch/arm/mach-s3c24xx/cpufreq-s3c2412.c
+++ b/drivers/cpufreq/s3c2412-cpufreq.c
@@ -25,13 +25,12 @@
 #include <asm/mach/map.h>
 
 #include <mach/regs-clock.h>
+#include <mach/s3c2412.h>
 
 #include <plat/cpu.h>
 #include <plat/clock.h>
 #include <plat/cpu-freq-core.h>
 
-#include "s3c2412.h"
-
 /* our clock resources. */
 static struct clk *xtal;
 static struct clk *fclk;
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2440.c b/drivers/cpufreq/s3c2440-cpufreq.c
index 72b2cc8a5a85..72b2cc8a5a85 100644
--- a/arch/arm/mach-s3c24xx/cpufreq-s3c2440.c
+++ b/drivers/cpufreq/s3c2440-cpufreq.c
diff --git a/arch/arm/mach-s3c24xx/cpufreq-debugfs.c b/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c
index 9b7b4289d66c..9b7b4289d66c 100644
--- a/arch/arm/mach-s3c24xx/cpufreq-debugfs.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c
diff --git a/arch/arm/mach-s3c24xx/cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index 3c0e78ede0da..3c0e78ede0da 100644
--- a/arch/arm/mach-s3c24xx/cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c