Boot_freq is for saving booting freq. But exynos_cpufreq_cpu_init
is called in hotplug. If boot_freq is existed in exynos_cpufreq_cpu_init,
boot_freq could be changed.
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Add freq_attr attribute to show 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: Inderpal Singh <inderpal.singh@linaro.org>
Reviewed-by: Amit Daniel Kachhap<amit.daniel@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Split exynos_target function into exynos_target & exynos_cpufreq_scale.
The exynos_cpufreq_scale changes the voltage & frequency.
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
If old & new freq have the same frequency, no need to call
cpufreq notifier & regulator function.
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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>
Fixes following sparse error.
drivers/cpufreq/exynos-cpufreq.c:34:5: warning: symbol
'exynos_verify_speed' was not declared. Should it be static?
drivers/cpufreq/exynos-cpufreq.c:40:14: warning: symbol
'exynos_getspeed' was not declared. Should it be static?
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On Exynos SoCs all cores share the same frequency setting, so changing
frequency of one core will affect rest of cores.
This patch modifies the exynos-cpufreq driver to inform cpufreq core
about this behavior and broadcast frequency change notifications for all
cores.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The policy might have been changed since last call of target().
Thus, using cpufreq_frequency_table_target(), which depends on
policy to find the corresponding index from a frequency, may return
inconsistent index for freqs.old. Thus, old_index should be
calculated not based on the current policy.
We have been observing such issue when scaling_min/max_freq were
updated and sometimes cuased system lockups deu to incorrectly
configured voltages.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This patch adds support cpufreq for EXYNOS5250 SoC. Basically,
the exynos-cpufreq.c is used commonly and exynos5250-cpufreq.c
is used for EXYNOS5250(two Cortex-A15 cores) SoC.
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>
This patch adds support cpufreq for EXYNOS4X12 SoCs. Basically,
the exynos-cpufreq.c is used commonly and exynos4x12-cpufreq.c
is used for EXYNOS4212(two Cortex-A9 cores) and EXYNOS4412(four
Cortex-A9 cores) SoCs.
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>
As per definition, locking_frequency is the initial frequency which is
set by boot-loader. Hence the value is updated with the initial value
during boot time init call.
This code was present in exynos210-cpufreq.c before this consolidation
patch.
- a125a17fa6 ([CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driver).
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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>
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>
