linux-toradex.git/drivers/cpufreq/exynos-cpufreq.c, branch v3.8.13

cpufreq: exynos: Get booting freq value in exynos_cpufreq_init

2013-04-12T16:52:11+00:00

commit 6e45eb12fd1c741d556bf264ee98853b5f3104e5 upstream.

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 
Signed-off-by: Kukjin Kim 
Signed-off-by: Greg Kroah-Hartman

cpufreq: exynos: Use static for functions used in only this file

2012-11-21T23:19:25+00:00

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 
Signed-off-by: Rafael J. Wysocki

cpufreq: exynos: Broadcast frequency change notifications for all cores

2012-11-21T23:09:27+00:00

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 
Signed-off-by: Kyungmin Park 
Signed-off-by: Rafael J. Wysocki

EXYNOS: bugfix on retrieving old_index from freqs.old

2012-07-20T09:58:34+00:00

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 
Signed-off-by: Rafael J. Wysocki

EXYNOS5250: Add support cpufreq for EXYNOS5250

2012-03-14T18:39:50+00:00

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 
Signed-off-by: Kukjin Kim 
Signed-off-by: Dave Jones

EXYNOS4X12: Add support cpufreq for EXYNOS4X12

2012-03-14T18:39:47+00:00

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 
Signed-off-by: Kukjin Kim 
Signed-off-by: Dave Jones

[CPUFREQ] EXYNOS: Initialize locking_frequency with initial frequency

2012-03-01T03:24:38+00:00

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.
- a125a17fa61a ([CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driver).

Signed-off-by: Tushar Behera 
Signed-off-by: Inderpal Singh 
Signed-off-by: Dave Jones

[CPUFREQ] EXYNOS: Removed useless headers and codes

2012-01-09T04:52:40+00:00

This patch removes no referencing header files and cleaned up
useless code.

Signed-off-by: Jaecheol Lee 
Signed-off-by: Kukjin Kim 
Signed-off-by: Dave Jones

[CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driver

2012-01-09T04:52:40+00:00

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 
Signed-off-by: Kukjin Kim 
Signed-off-by: Dave Jones