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Commit f023f8dd authored by Viresh Kumar's avatar Viresh Kumar Committed by Kukjin Kim
Browse files

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: default avatarViresh Kumar <viresh.kumar@linaro.org>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent f722406f

arch/arm/Kconfig

+0 −47
Original line number Diff line number Diff line
@@ -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"

arch/arm/mach-s3c24xx/Kconfig

+27 −39
Original line number Diff line number Diff line
@@ -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
@@ -204,18 +204,29 @@ 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

       depends on ARM_S3C24XX_CPUFREQ

       help

         Internal node to select timing code that is common to the s3c2410

         and s3c2440/s3c244 cpu frequency support.
@@ -224,7 +235,7 @@ config S3C2410_CPUFREQ_UTILS 


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

arch/arm/mach-s3c24xx/Makefile

+0 −6
Original line number Diff line number Diff line
@@ -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.

arch/arm/mach-s3c24xx/iotiming-s3c2412.c

+1 −1
Original line number Diff line number Diff line
@@ -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)