Merge branch 'pm-cpufreq'

Merge cpufreq updates for 7.2:

 - Fix a race between cpufreq suspend and CPU hotplug during system
   shutdown (Tianxiang Chen)

 - Avoid redundant target() calls for unchanged limits and fix a typo
   in a comment in the cpufreq core (Viresh Kumar)

 - Fix concurrency issues related to sysfs attributes access that affect
   cpufreq governors using the common governor code (Zhongqiu Han)

 - Simplify frequency limit handling in the conservative cpufreq
   governor (Lifeng Zheng)

 - Fix descriptions of the conservative governor freq_step tunable and
   the ondemand governor sampling_down_factor tunable in the cpufreq
   documentation (Pengjie Zhang)

 - Fix use-after-free and double free during _OSC evaluation in the PCC
   cpufreq driver (Yuho Choi)

 - Rework the handling of policy min and max frequency values in the
   cpufreq core to allow drivers to specify special initial values for
   the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
   Gondois)

 - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
   Imran Shaik).

 - Improve the warning message on HWP-disabled hybrid processors printed
   by the intel_pstate driver and sync policy->cur during CPU offline in
   it (Yohei Kojima, Fushuai Wang)

 - Drop cpufreq support for AMD Elan SC4* (Sean Young)

 - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep Kaur,
   Hans Zhang, Guangshuo Li, Xueqin Luo)

 - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
   Braha)

* pm-cpufreq: (25 commits)
  cpufreq: Use policy->min/max init as QoS request
  cpufreq: Remove driver default policy->min/max init
  cpufreq: Set default policy->min/max values for all drivers
  cpufreq: Extract cpufreq_policy_init_qos() function
  cpufreq: Documentation: fix conservative governor freq_step description
  cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
  cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC
  dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS
  cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load
  cpufreq: governor: Fix data races on per-CPU idle/nice baselines
  cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs
  cpufreq: elanfreq: Drop support for AMD Elan SC4*
  cpufreq: clean up dead dependencies on X86 in Kconfig
  cpufreq: conservative: Simplify frequency limit handling
  cpufreq: Avoid redundant target() calls for unchanged limits
  cpufreq: Fix typo in comment
  cpufreq: intel_pstate: Sync policy->cur during CPU offline
  cpufreq: Documentation: fix sampling_down_factor range
  cpufreq: Fix hotplug-suspend race during reboot
  cpufreq: pcc: fix use-after-free and double free in _OSC evaluation
  ...

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 2ab691828e48..ae9d1ce4f49c 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -146,6 +146,9 @@ struct cpufreq_policy {
 	/* Per policy boost supported flag. */
 	bool			boost_supported;
 
+	/* Pending policy->min/max update for the driver */
+	bool			update_limits;
+
 	 /* Cached frequency lookup from cpufreq_driver_resolve_freq. */
 	unsigned int cached_target_freq;
 	unsigned int cached_resolved_idx;
@@ -434,7 +437,7 @@ struct cpufreq_driver {
 /*
  * Set by drivers that need to update internal upper and lower boundaries along
  * with the target frequency and so the core and governors should also invoke
- * the diver if the target frequency does not change, but the policy min or max
+ * the driver if the target frequency does not change, but the policy min or max
  * may have changed.
  */
 #define CPUFREQ_NEED_UPDATE_LIMITS		BIT(0)