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Commit 361c2cb5 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branch 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux into pm-cpufreq 

Pull ARM cpufreq fixes from Viresh Kumar.

* 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux:
  cpufreq: fix EXYNOS drivers selection
  cpufreq: exynos5440: Fix to skip when new frequency same as current
parents c49a089c 45e12086

drivers/cpufreq/Kconfig.arm

+24 −12
Original line number Diff line number Diff line
@@ -17,37 +17,47 @@ config ARM_DT_BL_CPUFREQ 
	  big.LITTLE platform. This gets frequency tables from DT.



config ARM_EXYNOS_CPUFREQ

	bool "SAMSUNG EXYNOS SoCs"

	depends on ARCH_EXYNOS

	bool

	select CPU_FREQ_TABLE

	default y

	help

	  This adds the CPUFreq driver common part for Samsung

	  EXYNOS SoCs.



	  If in doubt, say N.



config ARM_EXYNOS4210_CPUFREQ

	def_bool CPU_EXYNOS4210

	bool "SAMSUNG EXYNOS4210"

	depends on CPU_EXYNOS4210

	default y

	select ARM_EXYNOS_CPUFREQ

	help

	  This adds the CPUFreq driver for Samsung EXYNOS4210

	  SoC (S5PV310 or S5PC210).



	  If in doubt, say N.



config ARM_EXYNOS4X12_CPUFREQ

	def_bool (SOC_EXYNOS4212 || SOC_EXYNOS4412)

	bool "SAMSUNG EXYNOS4x12"

	depends on (SOC_EXYNOS4212 || SOC_EXYNOS4412)

	default y

	select ARM_EXYNOS_CPUFREQ

	help

	  This adds the CPUFreq driver for Samsung EXYNOS4X12

	  SoC (EXYNOS4212 or EXYNOS4412).



	  If in doubt, say N.



config ARM_EXYNOS5250_CPUFREQ

	def_bool SOC_EXYNOS5250

	bool "SAMSUNG EXYNOS5250"

	depends on SOC_EXYNOS5250

	default y

	select ARM_EXYNOS_CPUFREQ

	help

	  This adds the CPUFreq driver for Samsung EXYNOS5250

	  SoC.



	  If in doubt, say N.



config ARM_EXYNOS5440_CPUFREQ

	def_bool SOC_EXYNOS5440

	bool "SAMSUNG EXYNOS5440"

	depends on SOC_EXYNOS5440

	depends on HAVE_CLK && PM_OPP && OF

	default y

	select CPU_FREQ_TABLE

	help

	  This adds the CPUFreq driver for Samsung EXYNOS5440
@@ -55,6 +65,8 @@ config ARM_EXYNOS5440_CPUFREQ 
	  different than previous exynos controllers so not using

	  the common exynos framework.



	  If in doubt, say N.



config ARM_HIGHBANK_CPUFREQ

	tristate "Calxeda Highbank-based"

	depends on ARCH_HIGHBANK

drivers/cpufreq/exynos-cpufreq.c

+0 −1
Original line number Diff line number Diff line
@@ -332,7 +332,6 @@ static int __init exynos_cpufreq_init(void) 
	regulator_put(arm_regulator);

err_vdd_arm:

	kfree(exynos_info);

	pr_debug("%s: failed initialization\n", __func__);

	return -EINVAL;

}

late_initcall(exynos_cpufreq_init);

drivers/cpufreq/exynos-cpufreq.h

+21 −0
Original line number Diff line number Diff line
@@ -43,6 +43,27 @@ struct exynos_dvfs_info { 
	bool (*need_apll_change)(unsigned int, unsigned int);

};



#ifdef CONFIG_ARM_EXYNOS4210_CPUFREQ

extern int exynos4210_cpufreq_init(struct exynos_dvfs_info *);

#else

static inline int exynos4210_cpufreq_init(struct exynos_dvfs_info *info)

{

	return -EOPNOTSUPP;

}

#endif

#ifdef CONFIG_ARM_EXYNOS4X12_CPUFREQ

extern int exynos4x12_cpufreq_init(struct exynos_dvfs_info *);

#else

static inline int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info)

{

	return -EOPNOTSUPP;

}

#endif

#ifdef CONFIG_ARM_EXYNOS5250_CPUFREQ

extern int exynos5250_cpufreq_init(struct exynos_dvfs_info *);

#else

static inline int exynos5250_cpufreq_init(struct exynos_dvfs_info *info)

{

	return -EOPNOTSUPP;

}

#endif

drivers/cpufreq/exynos5440-cpufreq.c

+3 −0
Original line number Diff line number Diff line
@@ -238,6 +238,9 @@ static int exynos_target(struct cpufreq_policy *policy, 
	freqs.old = dvfs_info->cur_frequency;

	freqs.new = freq_table[index].frequency;



	if (freqs.old == freqs.new)

		goto out;



	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);



	/* Set the target frequency in all C0_3_PSTATE register */