14 Jul, 2011

9 commits

• 133de1211   [CPUFREQ] s5pv210: make needlessly global symbols static ... Browse Code »

  The following symbols are needlessly defined global:
  s5pv210_verify_speed
  s5pv210_getspeed

  Make them static.

  Signed-off-by: Axel Lin
  Acked-by: Kukjin Kim
  Signed-off-by: Dave Jones

  Axel Lin

  2011-07-14 06:30:00 +0800  
• fe7f1bcbf   [CPUFREQ] S5PV210: Add reboot notifier to prevent system hang ... Browse Code »

  When system reboot, the CPUFREQ level should be 800MHz to prevent
  system lockup.

  Signed-off-by: Huisung Kang
  Signed-off-by: Jonghwan Choi
  Signed-off-by: Kukjin Kim
  Signed-off-by: Dave Jones

  Huisung Kang

  2011-07-14 06:29:59 +0800  
• 74df8e69e   [CPUFREQ] S5PV210: Adjust udelay prior to voltage scaling down ... Browse Code »

  Voltage scaling accesses the MAX8998 regulators over bit-banged I2C
  with lots of udelays. In the case of decreasing CPU speed, the
  number of loops per us for udelay needs to be adjusted prior to
  decreasing voltage to avoid delaying for up to 10X too long.

  Signed-off-by: Todd Poynor
  Signed-off-by: Jonghwan Choi
  Signed-off-by: Kukjin Kim
  Signed-off-by: Dave Jones

  Todd Poynor

  2011-07-14 06:29:58 +0800  
• 5b02b7794   [CPUFREQ] S5PV210: Lock a mutex while changing the cpu frequency ... Browse Code »

  Without this lock the call to change the frequency for suspend could
  switch to a new frequency while another thread was still changing the
  cpu voltage.

  Signed-off-by: Arve Hjønnevåg
  Signed-off-by: Jonghwan Choi
  Signed-off-by: Kukjin Kim
  Signed-off-by: Dave Jones

  Arve Hjønnevåg

  2011-07-14 06:29:58 +0800  
• 405e6d6df   [CPUFREQ] S5PV210: Add pm_notifier to prevent system unstable ... Browse Code »

  Minimum 800MHz is needed to enter/exit suspend mode due to voltage mismatch.

  Signed-off-by: Huisung Kang
  Signed-off-by: Jonghwan Choi
  Signed-off-by: Kukjin Kim
  Signed-off-by: Dave Jones

  Huisung Kang

  2011-07-14 06:29:57 +0800  
• e8b4c1986   [CPUFREQ] S5PV210: Add arm/int voltage control support ... Browse Code »

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

  Jonghwan Choi

  2011-07-14 06:29:56 +0800  
• 90d5d0a11   [CPUFREQ] S5PV210: Add additional symantics for "relation" in cpufreq with pm ... Browse Code »

  Relation has an additional symantics other than standard.
  s5pv310_target funtion have below additional relation.
  - DISABLE_FURTHER_CPUFREQ : disable further access to target
  - ENABLE_FURTHER_CPUFRER : enable access to target

  Signed-off-by: Huisung Kang
  Signed-off-by: Jonghwan Choi
  Signed-off-by: Kukjin Kim
  Signed-off-by: Dave Jones

  Huisung Kang

  2011-07-14 06:29:56 +0800  
• 4911ca103   [CPUFREQ] s5pv210-cpufreq.c: Add missing clk_put ... Browse Code »

  The successive calls to clk_get each call clk_put in the case of failure,
  but this is not done for subsequent error handling code. The calls to
  clk_get are moved to the end of the function, and appropriate gotos are
  added.

  A simplified version of the semantic match that finds this problem is as
  follows: (http://coccinelle.lip6.fr/)

  //
  @r exists@
  expression e1,e2;
  statement S;
  @@

  e1 = clk_get@p1(...);
  ... when != e1 = e2
  when != clk_put(e1)
  when any
  if (...) { ... when != clk_put(e1)
  when != if (...) { ... clk_put(e1) ... }
  * return@p3 ...;
  } else S
  //

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

  Julia Lawall

  2011-07-14 06:29:54 +0800  
• f7d770790   [CPUFREQ] Move ARM Samsung cpufreq drivers to drivers/cpufreq/ ... Browse Code »

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

  Kukjin Kim

  2011-07-14 06:29:51 +0800