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path: root/drivers/cpufreq/exynos4210-cpufreq.c
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2012-12-23cpufreq: exynos: Add missing staticJonghwan Choi1-1/+1
Add missing 'static' qualifiers. Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-12-23cpufreq: exynos: Use APLL_FREQ macro for cpu divider valueJonghwan Choi1-110/+25
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-12-23cpufreq: exynos: Remove unused variable & IS_ERRJonghwan Choi1-12/+3
The variable 'max_support_idx, min_support_idx, pm_lock_idx" are never used, so remove the unused variable. Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-02-29[CPUFREQ] EXYNOS4210: update the name of EXYNOS clock registerKukjin Kim1-35/+35
According to replacing the name of EXYNOS clock registers, this patch updates exynos4210-cpufreq.c file where it is used. Cc: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2012-01-08[CPUFREQ] EXYNOS: Removed useless headers and codesJaecheol Lee1-13/+1
This patch removes no referencing header files and cleaned up useless code. Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2012-01-08[CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driverJaecheol Lee1-313/+72
To support various EXYNOS series SoCs commonly, added exynos common structure. exynos-cpufreq.c => EXYNOS series common cpufreq driver exynos4210-cpufreq.c => EXYNOS4210 support cpufreq driver Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-12-09[CPUFREQ] EXYNOS4210: cpufreq code is changed for stable workingJaecheol Lee1-36/+65
This patch is modify code for stable working 1. Remove unused register access code 2. Change sequence for frequency changing Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-12-09[CPUFREQ] EXYNOS4210: Update frequency table for cpu dividerJaecheol Lee1-28/+41
This patch is changes frequency table for cpu divider for stable frequency. Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-12-09[CPUFREQ] EXYNOS4210: Remove code about bus on cpufreqJaecheol Lee1-173/+1
This patch removes code for bus on cpufreq because the code for bus frequency changing moves to busfreq driver. So code about bus on cpufreq is not necessary. Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-10-26[CPUFREQ] ARM Exynos4210 PM/Suspend compatibility with different bootloadersMyungJoo Ham1-4/+102
We have various bootloaders for Exynos4210 machines. Some of they set the ARM core frequency at boot time even when the boot is a resume from suspend-to-RAM. Such changes may create inconsistency in the data of CPUFREQ driver and have incurred hang issues with suspend-to-RAM. This patch enables to save and restore CPU frequencies with pm-notifier and sets the frequency at the initial (boot-time) value so that there wouldn't be any inconsistency between bootloader and kernel. This patch does not use CPUFREQ's suspend/resume callbacks because they are syscore-ops, which do not allow to use mutex that is being used by regulators that are used by the target function. This also prevents any CPUFREQ transitions during suspend-resume context, which could be dangerous at noirq-context along with regulator framework. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-10-26[CPUFREQ] exynos4210: Show list of available frequenciesDonggeun Kim1-1/+22
This patch enables 'scaling_available_frequencies' attribute showing list of available frequencies. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-07-13[CPUFREQ] exynos4210: make needlessly global symbols staticAxel Lin1-3/+3
The following symbols are needlessly defined global: exynos4_verify_speed exynos4_getspeed exynos4_set_clkdiv Make them static. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-07-13[CPUFREQ] Move ARM Samsung cpufreq drivers to drivers/cpufreq/Kukjin Kim1-0/+568
According to discussion of the ARM arch subsystem migration, ARM cpufreq drivers move to drivers/cpufreq. So this patch adds Kconfig.arm for ARM like x86 and adds Samsung S5PV210 and EXYNOS4210 cpufreq driver compile in there. As a note, otherw will be moved. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
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