05 Jun, 2017

1 commit

• c0f2e2195   cpufreq: scpi: use new scpi_ops functions to remove duplicate code ... Browse Code »

  scpi_ops now provide APIs to get the transition_latency and to add
  OPPs to the devices making those logic redundant here.

  This patch makes use of those APIs and removes the redundant code in
  this driver.

  Cc: "Rafael J. Wysocki"
  Acked-by: Viresh Kumar
  Signed-off-by: Sudeep Holla

  Sudeep Holla

  2017-06-05 18:14:35 +0800  

18 Aug, 2016

1 commit

• b0d8a69d0   cpufreq-SCPI: Delete unnecessary assignment for the field "owner" ... Browse Code »

  The field "owner" is set by the core.
  Thus delete an unneeded initialisation.

  Generated by scripts/coccinelle/api/platform_no_drv_owner.cocci

  Signed-off-by: Markus Elfring
  Acked-by: Viresh Kumar
  Acked-by: Sudeep Holla
  Signed-off-by: Rafael J. Wysocki

  Markus Elfring

  2016-08-18 09:42:32 +0800  

05 May, 2016

1 commit

• d9975b0b0   cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table ... Browse Code »

  Currently when performing random CPU hot-plugs and suspend-to-ram(S2R)
  on systems using arm_big_little cpufreq driver, we get warnings similar
  to something like below:

  cpu cpu1: _opp_add: duplicate OPPs detected. Existing: freq: 600000000,
  volt: 800000, enabled: 1. New: freq: 600000000, volt: 800000, enabled: 1

  This is mainly because the OPPs for the shared cpus are not set. We can
  just use dev_pm_opp_of_cpumask_add_table in case the OPPs are obtained
  from DT(arm_big_little_dt.c) or use dev_pm_opp_set_sharing_cpus if the
  OPPs are obtained by other means like firmware(e.g. scpi-cpufreq.c)

  Also now that the generic dev_pm_opp{,_of}_cpumask_remove_table can
  handle removal of opp table and entries for all associated CPUs, we can
  re-use dev_pm_opp{,_of}_cpumask_remove_table as free_opp_table in
  cpufreq_arm_bL_ops.

  This patch makes necessary changes to reuse the generic OPP functions for
  {init,free}_opp_table and thereby eliminating the warnings.

  Signed-off-by: Sudeep Holla
  Acked-by: Viresh Kumar
  Signed-off-by: Rafael J. Wysocki

  Sudeep Holla

  2016-05-05 07:40:04 +0800  

24 Dec, 2015

1 commit

• a7def561c   cpufreq: scpi-cpufreq: signedness bug in scpi_get_dvfs_info() ... Browse Code »

  The "domain" variable needs to be signed for the error handling to work.

  Fixes: 8def31034d03 (cpufreq: arm_big_little: add SCPI interface driver)
  Signed-off-by: Dan Carpenter
  Acked-by: Viresh Kumar
  Acked-by: Sudeep Holla
  Signed-off-by: Rafael J. Wysocki

  Dan Carpenter

  2015-12-24 09:11:37 +0800  

28 Sep, 2015

1 commit

• 8def31034   cpufreq: arm_big_little: add SCPI interface driver ... Browse Code »

  On some ARM based systems, a separate Cortex-M based System Control
  Processor(SCP) provides the overall power, clock, reset and system
  control including CPU DVFS. SCPI Message Protocol is used to
  communicate with the SCPI.

  This patch adds a interface driver for adding OPPs and registering
  the arm_big_little cpufreq driver for such systems.

  Signed-off-by: Sudeep Holla
  Acked-by: Viresh Kumar
  Cc: "Rafael J. Wysocki"
  Cc: linux-pm@vger.kernel.org

  Sudeep Holla

  2015-09-28 18:53:38 +0800