Merge tag 'pm-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These include cpufreq core simplifications and fixes, cpufreq driver
  updates, cpuidle driver update, a generic power domains (genpd)
  locking fix and a debug-related simplification of the PM core.

  Specifics:

   - Drop the ->stop_cpu() (not really useful) and ->resolve_freq()
     (unused) cpufreq driver callbacks and modify the users of the
     former accordingly (Viresh Kumar, Rafael Wysocki).

   - Add frequency invariance support to the ACPI CPPC cpufreq driver
     again along with the related fixes and cleanups (Viresh Kumar).

   - Update the Meditak, qcom and SCMI ARM cpufreq drivers (Fabien
     Parent, Seiya Wang, Sibi Sankar, Christophe JAILLET).

   - Rename black/white-lists in the DT cpufreq driver (Viresh Kumar).

   - Add generic performance domains support to the dvfs DT bindings
     (Sudeep Holla).

   - Refine locking in the generic power domains (genpd) support code to
     avoid lock dependency issues (Stephen Boyd).

   - Update the MSM and qcom ARM cpuidle drivers (Bartosz Dudziak).

   - Simplify the PM core debug code by using ktime_us_delta() to
     compute time interval lengths (Mark-PK Tsai)"

* tag 'pm-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (21 commits)
  PM: domains: Shrink locking area of the gpd_list_lock
  PM: sleep: Use ktime_us_delta() in initcall_debug_report()
  cpufreq: CPPC: Add support for frequency invariance
  arch_topology: Avoid use-after-free for scale_freq_data
  cpufreq: CPPC: Pass structure instance by reference
  cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init
  cpufreq: Remove ->resolve_freq()
  cpufreq: Reuse cpufreq_driver_resolve_freq() in __cpufreq_driver_target()
  cpufreq: Remove the ->stop_cpu() driver callback
  cpufreq: powernv: Migrate to ->exit() callback instead of ->stop_cpu()
  cpufreq: CPPC: Migrate to ->exit() callback instead of ->stop_cpu()
  cpufreq: intel_pstate: Combine ->stop_cpu() and ->offline()
  cpuidle: qcom: Add SPM register data for MSM8226
  dt-bindings: arm: msm: Add SAW2 for MSM8226
  dt-bindings: cpufreq: update cpu type and clock name for MT8173 SoC
  clk: mediatek: remove deprecated CLK_INFRA_CA57SEL for MT8173 SoC
  cpufreq: dt: Rename black/white-lists
  cpufreq: scmi: Fix an error message
  cpufreq: mediatek: add support for mt8365
  dt-bindings: dvfs: Add support for generic performance domains
  ...

Documentation/cpu-freq/cpu-drivers.rst

@@ -58,9 +58,6 @@ And optionally
 
  .driver_data - cpufreq driver specific data.
 
- .resolve_freq - Returns the most appropriate frequency for a target
- frequency. Doesn't change the frequency though.
-
  .get_intermediate and target_intermediate - Used to switch to stable
  frequency while changing CPU frequency.
 
@@ -71,9 +68,6 @@ And optionally
  .exit - A pointer to a per-policy cleanup function called during
  CPU_POST_DEAD phase of cpu hotplug process.
 
- .stop_cpu - A pointer to a per-policy stop function called during
- CPU_DOWN_PREPARE phase of cpu hotplug process.
-
  .suspend - A pointer to a per-policy suspend function which is called
  with interrupts disabled and _after_ the governor is stopped for the
  policy.

Documentation/devicetree/bindings/arm/cpus.yaml

@@ -257,6 +257,13 @@ properties:
 
       where voltage is in V, frequency is in MHz.
 
+  performance-domains:
+    maxItems: 1
+    description:
+      List of phandles and performance domain specifiers, as defined by
+      bindings of the performance domain provider. See also
+      dvfs/performance-domain.yaml.
+
   power-domains:
     description:
       List of phandles and PM domain specifiers, as defined by bindings of the

Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt

@@ -25,6 +25,7 @@ PROPERTIES
 			"qcom,saw2"
 		    A more specific value could be one of:
 			"qcom,apq8064-saw2-v1.1-cpu"
+			"qcom,msm8226-saw2-v2.1-cpu"
 			"qcom,msm8974-saw2-v2.1-cpu"
 			"qcom,apq8084-saw2-v2.1-cpu"
 

Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt

@@ -202,11 +202,11 @@ Example 2 (MT8173 SoC):
 
 	cpu2: cpu@100 {
 		device_type = "cpu";
-		compatible = "arm,cortex-a57";
+		compatible = "arm,cortex-a72";
 		reg = <0x100>;
 		enable-method = "psci";
 		cpu-idle-states = <&CPU_SLEEP_0>;
-		clocks = <&infracfg CLK_INFRA_CA57SEL>,
+		clocks = <&infracfg CLK_INFRA_CA72SEL>,
 			 <&apmixedsys CLK_APMIXED_MAINPLL>;
 		clock-names = "cpu", "intermediate";
 		operating-points-v2 = <&cpu_opp_table_b>;
@@ -214,11 +214,11 @@ Example 2 (MT8173 SoC):
 
 	cpu3: cpu@101 {
 		device_type = "cpu";
-		compatible = "arm,cortex-a57";
+		compatible = "arm,cortex-a72";
 		reg = <0x101>;
 		enable-method = "psci";
 		cpu-idle-states = <&CPU_SLEEP_0>;
-		clocks = <&infracfg CLK_INFRA_CA57SEL>,
+		clocks = <&infracfg CLK_INFRA_CA72SEL>,
 			 <&apmixedsys CLK_APMIXED_MAINPLL>;
 		clock-names = "cpu", "intermediate";
 		operating-points-v2 = <&cpu_opp_table_b>;

Documentation/devicetree/bindings/dvfs/performance-domain.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dvfs/performance-domain.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic performance domains
+
+maintainers:
+  - Sudeep Holla <sudeep.holla@arm.com>
+
+description: |+
+  This binding is intended for performance management of groups of devices or
+  CPUs that run in the same performance domain. Performance domains must not
+  be confused with power domains. A performance domain is defined by a set
+  of devices that always have to run at the same performance level. For a given
+  performance domain, there is a single point of control that affects all the
+  devices in the domain, making it impossible to set the performance level of
+  an individual device in the domain independently from other devices in
+  that domain. For example, a set of CPUs that share a voltage domain, and
+  have a common frequency control, is said to be in the same performance
+  domain.
+
+  This device tree binding can be used to bind performance domain consumer
+  devices with their performance domains provided by performance domain
+  providers. A performance domain provider can be represented by any node in
+  the device tree and can provide one or more performance domains. A consumer
+  node can refer to the provider by a phandle and a set of phandle arguments
+  (so called performance domain specifiers) of length specified by the
+  \#performance-domain-cells property in the performance domain provider node.
+
+select: true
+
+properties:
+  "#performance-domain-cells":
+    description:
+      Number of cells in a performance domain specifier. Typically 0 for nodes
+      representing a single performance domain and 1 for nodes providing
+      multiple performance domains (e.g. performance controllers), but can be
+      any value as specified by device tree binding documentation of particular
+      provider.
+    enum: [ 0, 1 ]
+
+  performance-domains:
+    $ref: '/schemas/types.yaml#/definitions/phandle-array'
+    maxItems: 1
+    description:
+      A phandle and performance domain specifier as defined by bindings of the
+      performance controller/provider specified by phandle.
+
+additionalProperties: true
+
+examples:
+  - |
+    performance: performance-controller@12340000 {
+        compatible = "qcom,cpufreq-hw";
+        reg = <0x12340000 0x1000>;
+        #performance-domain-cells = <1>;
+    };
+
+    // The node above defines a performance controller that is a performance
+    // domain provider and expects one cell as its phandle argument.
+
+    cpus {
+        #address-cells = <2>;
+        #size-cells = <0>;
+
+        cpu@0 {
+            device_type = "cpu";
+            compatible = "arm,cortex-a57";
+            reg = <0x0 0x0>;
+            performance-domains = <&performance 1>;
+        };
+    };

Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst

@@ -64,8 +64,6 @@ CPUfreq核心层注册一个cpufreq_driver结构体。
 
  .driver_data - cpufreq驱动程序的特定数据。
 
- .resolve_freq - 返回最适合目标频率的频率。不过并不能改变频率。
-
  .get_intermediate 和 target_intermediate - 用于在改变CPU频率时切换到稳定
  的频率。
 
@@ -76,9 +74,6 @@ CPUfreq核心层注册一个cpufreq_driver结构体。
  .exit - 一个指向per-policy清理函数的指针，该函数在cpu热插拔过程的CPU_POST_DEAD
  阶段被调用。
 
- .stop_cpu - 一个指向per-policy停止函数的指针，该函数在cpu热插拔过程的CPU_DOWN_PREPARE
- 阶段被调用。
-
  .suspend - 一个指向per-policy暂停函数的指针，该函数在关中断且在该策略的调节器停止
  后被调用。
 

drivers/base/arch_topology.c

@@ -18,10 +18,11 @@
 #include <linux/cpumask.h>
 #include <linux/init.h>
 #include <linux/percpu.h>
+#include <linux/rcupdate.h>
 #include <linux/sched.h>
 #include <linux/smp.h>
 
-static DEFINE_PER_CPU(struct scale_freq_data *, sft_data);
+static DEFINE_PER_CPU(struct scale_freq_data __rcu *, sft_data);
 static struct cpumask scale_freq_counters_mask;
 static bool scale_freq_invariant;
 
@@ -66,16 +67,20 @@ void topology_set_scale_freq_source(struct scale_freq_data *data,
 	if (cpumask_empty(&scale_freq_counters_mask))
 		scale_freq_invariant = topology_scale_freq_invariant();
 
+	rcu_read_lock();
+
 	for_each_cpu(cpu, cpus) {
-		sfd = per_cpu(sft_data, cpu);
+		sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu));
 
 		/* Use ARCH provided counters whenever possible */
 		if (!sfd || sfd->source != SCALE_FREQ_SOURCE_ARCH) {
-			per_cpu(sft_data, cpu) = data;
+			rcu_assign_pointer(per_cpu(sft_data, cpu), data);
 			cpumask_set_cpu(cpu, &scale_freq_counters_mask);
 		}
 	}
 
+	rcu_read_unlock();
+
 	update_scale_freq_invariant(true);
 }
 EXPORT_SYMBOL_GPL(topology_set_scale_freq_source);
@@ -86,22 +91,32 @@ void topology_clear_scale_freq_source(enum scale_freq_source source,
 	struct scale_freq_data *sfd;
 	int cpu;
 
+	rcu_read_lock();
+
 	for_each_cpu(cpu, cpus) {
-		sfd = per_cpu(sft_data, cpu);
+		sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu));
 
 		if (sfd && sfd->source == source) {
-			per_cpu(sft_data, cpu) = NULL;
+			rcu_assign_pointer(per_cpu(sft_data, cpu), NULL);
 			cpumask_clear_cpu(cpu, &scale_freq_counters_mask);
 		}
 	}
 
+	rcu_read_unlock();
+
+	/*
+	 * Make sure all references to previous sft_data are dropped to avoid
+	 * use-after-free races.
+	 */
+	synchronize_rcu();
+
 	update_scale_freq_invariant(false);
 }
 EXPORT_SYMBOL_GPL(topology_clear_scale_freq_source);
 
 void topology_scale_freq_tick(void)
 {
-	struct scale_freq_data *sfd = *this_cpu_ptr(&sft_data);
+	struct scale_freq_data *sfd = rcu_dereference_sched(*this_cpu_ptr(&sft_data));
 
 	if (sfd)
 		sfd->set_freq_scale();

drivers/base/power/domain.c

@@ -2018,8 +2018,8 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
 
 	mutex_lock(&gpd_list_lock);
 	list_add(&genpd->gpd_list_node, &gpd_list);
-	genpd_debug_add(genpd);
 	mutex_unlock(&gpd_list_lock);
+	genpd_debug_add(genpd);
 
 	return 0;
 }
@@ -2206,12 +2206,19 @@ static int genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
 
 static bool genpd_present(const struct generic_pm_domain *genpd)
 {
+	bool ret = false;
 	const struct generic_pm_domain *gpd;
 
-	list_for_each_entry(gpd, &gpd_list, gpd_list_node)
-		if (gpd == genpd)
-			return true;
-	return false;
+	mutex_lock(&gpd_list_lock);
+	list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+		if (gpd == genpd) {
+			ret = true;
+			break;
+		}
+	}
+	mutex_unlock(&gpd_list_lock);
+
+	return ret;
 }
 
 /**
@@ -2222,15 +2229,13 @@ static bool genpd_present(const struct generic_pm_domain *genpd)
 int of_genpd_add_provider_simple(struct device_node *np,
 				 struct generic_pm_domain *genpd)
 {
-	int ret = -EINVAL;
+	int ret;
 
 	if (!np || !genpd)
 		return -EINVAL;
 
-	mutex_lock(&gpd_list_lock);
-
 	if (!genpd_present(genpd))
-		goto unlock;
+		return -EINVAL;
 
 	genpd->dev.of_node = np;
 
@@ -2241,7 +2246,7 @@ int of_genpd_add_provider_simple(struct device_node *np,
 			if (ret != -EPROBE_DEFER)
 				dev_err(&genpd->dev, "Failed to add OPP table: %d\n",
 					ret);
-			goto unlock;
+			return ret;
 		}
 
 		/*
@@ -2259,16 +2264,13 @@ int of_genpd_add_provider_simple(struct device_node *np,
 			dev_pm_opp_of_remove_table(&genpd->dev);
 		}
 
-		goto unlock;
+		return ret;
 	}
 
 	genpd->provider = &np->fwnode;
 	genpd->has_provider = true;
 
-unlock:
-	mutex_unlock(&gpd_list_lock);
-
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(of_genpd_add_provider_simple);
 
@@ -2287,8 +2289,6 @@ int of_genpd_add_provider_onecell(struct device_node *np,
 	if (!np || !data)
 		return -EINVAL;
 
-	mutex_lock(&gpd_list_lock);
-
 	if (!data->xlate)
 		data->xlate = genpd_xlate_onecell;
 
@@ -2328,8 +2328,6 @@ int of_genpd_add_provider_onecell(struct device_node *np,
 	if (ret < 0)
 		goto error;
 
-	mutex_unlock(&gpd_list_lock);
-
 	return 0;
 
 error:
@@ -2348,8 +2346,6 @@ int of_genpd_add_provider_onecell(struct device_node *np,
 		}
 	}
 
-	mutex_unlock(&gpd_list_lock);
-
 	return ret;
 }
 EXPORT_SYMBOL_GPL(of_genpd_add_provider_onecell);

drivers/base/power/main.c

@@ -220,16 +220,13 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime,
 				  void *cb, int error)
 {
 	ktime_t rettime;
-	s64 nsecs;
 
 	if (!pm_print_times_enabled)
 		return;
 
 	rettime = ktime_get();
-	nsecs = (s64) ktime_to_ns(ktime_sub(rettime, calltime));
-
 	dev_info(dev, "%pS returned %d after %Ld usecs\n", cb, error,
-		 (unsigned long long)nsecs >> 10);
+		 (unsigned long long)ktime_us_delta(rettime, calltime));
 }
 
 /**

drivers/cpufreq/Kconfig.arm

@@ -19,6 +19,16 @@ config ACPI_CPPC_CPUFREQ
 
 	  If in doubt, say N.
 
+config ACPI_CPPC_CPUFREQ_FIE
+	bool "Frequency Invariance support for CPPC cpufreq driver"
+	depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
+	default y
+	help
+	  This extends frequency invariance support in the CPPC cpufreq driver,
+	  by using CPPC delivered and reference performance counters.
+
+	  If in doubt, say N.
+
 config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
 	tristate "Allwinner nvmem based SUN50I CPUFreq driver"
 	depends on ARCH_SUNXI

drivers/cpufreq/cpufreq-dt-platdev.c

@@ -15,7 +15,7 @@
  * Machines for which the cpufreq device is *always* created, mostly used for
  * platforms using "operating-points" (V1) property.
  */
-static const struct of_device_id whitelist[] __initconst = {
+static const struct of_device_id allowlist[] __initconst = {
 	{ .compatible = "allwinner,sun4i-a10", },
 	{ .compatible = "allwinner,sun5i-a10s", },
 	{ .compatible = "allwinner,sun5i-a13", },
@@ -100,7 +100,7 @@ static const struct of_device_id whitelist[] __initconst = {
  * Machines for which the cpufreq device is *not* created, mostly used for
  * platforms using "operating-points-v2" property.
  */
-static const struct of_device_id blacklist[] __initconst = {
+static const struct of_device_id blocklist[] __initconst = {
 	{ .compatible = "allwinner,sun50i-h6", },
 
 	{ .compatible = "arm,vexpress", },
@@ -126,6 +126,7 @@ static const struct of_device_id blacklist[] __initconst = {
 	{ .compatible = "mediatek,mt8173", },
 	{ .compatible = "mediatek,mt8176", },
 	{ .compatible = "mediatek,mt8183", },
+	{ .compatible = "mediatek,mt8365", },
 	{ .compatible = "mediatek,mt8516", },
 
 	{ .compatible = "nvidia,tegra20", },
@@ -137,6 +138,7 @@ static const struct of_device_id blacklist[] __initconst = {
 	{ .compatible = "qcom,msm8996", },
 	{ .compatible = "qcom,qcs404", },
 	{ .compatible = "qcom,sc7180", },
+	{ .compatible = "qcom,sc7280", },
 	{ .compatible = "qcom,sdm845", },
 
 	{ .compatible = "st,stih407", },
@@ -177,13 +179,13 @@ static int __init cpufreq_dt_platdev_init(void)
 	if (!np)
 		return -ENODEV;
 
-	match = of_match_node(whitelist, np);
+	match = of_match_node(allowlist, np);
 	if (match) {
 		data = match->data;
 		goto create_pdev;
 	}
 
-	if (cpu0_node_has_opp_v2_prop() && !of_match_node(blacklist, np))
+	if (cpu0_node_has_opp_v2_prop() && !of_match_node(blocklist, np))
 		goto create_pdev;
 
 	of_node_put(np);

drivers/cpufreq/cpufreq.c

@@ -524,6 +524,22 @@ void cpufreq_disable_fast_switch(struct cpufreq_policy *policy)
 }
 EXPORT_SYMBOL_GPL(cpufreq_disable_fast_switch);
 
+static unsigned int __resolve_freq(struct cpufreq_policy *policy,
+		unsigned int target_freq, unsigned int relation)
+{
+	unsigned int idx;
+
+	target_freq = clamp_val(target_freq, policy->min, policy->max);
+
+	if (!cpufreq_driver->target_index)
+		return target_freq;
+
+	idx = cpufreq_frequency_table_target(policy, target_freq, relation);
+	policy->cached_resolved_idx = idx;
+	policy->cached_target_freq = target_freq;
+	return policy->freq_table[idx].frequency;
+}
+
 /**
  * cpufreq_driver_resolve_freq - Map a target frequency to a driver-supported
  * one.
@@ -538,22 +554,7 @@ EXPORT_SYMBOL_GPL(cpufreq_disable_fast_switch);
 unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
 					 unsigned int target_freq)
 {
-	target_freq = clamp_val(target_freq, policy->min, policy->max);
-	policy->cached_target_freq = target_freq;
-
-	if (cpufreq_driver->target_index) {
-		unsigned int idx;
-
-		idx = cpufreq_frequency_table_target(policy, target_freq,
-						     CPUFREQ_RELATION_L);
-		policy->cached_resolved_idx = idx;
-		return policy->freq_table[idx].frequency;
-	}
-
-	if (cpufreq_driver->resolve_freq)
-		return cpufreq_driver->resolve_freq(policy, target_freq);
-
-	return target_freq;
+	return __resolve_freq(policy, target_freq, CPUFREQ_RELATION_L);
 }
 EXPORT_SYMBOL_GPL(cpufreq_driver_resolve_freq);
 
@@ -1606,9 +1607,6 @@ static int cpufreq_offline(unsigned int cpu)
 		policy->cdev = NULL;
 	}
 
-	if (cpufreq_driver->stop_cpu)
-		cpufreq_driver->stop_cpu(policy);
-
 	if (has_target())
 		cpufreq_exit_governor(policy);
 
@@ -2234,13 +2232,11 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 			    unsigned int relation)
 {
 	unsigned int old_target_freq = target_freq;
-	int index;
 
 	if (cpufreq_disabled())
 		return -ENODEV;
 
-	/* Make sure that target_freq is within supported range */
-	target_freq = clamp_val(target_freq, policy->min, policy->max);
+	target_freq = __resolve_freq(policy, target_freq, relation);
 
 	pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n",
 		 policy->cpu, target_freq, relation, old_target_freq);
@@ -2261,9 +2257,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 	if (!cpufreq_driver->target_index)
 		return -EINVAL;
 
-	index = cpufreq_frequency_table_target(policy, target_freq, relation);
-
-	return __target_index(policy, index);
+	return __target_index(policy, policy->cached_resolved_idx);
 }
 EXPORT_SYMBOL_GPL(__cpufreq_driver_target);
 

drivers/cpufreq/intel_pstate.c

@@ -2532,7 +2532,7 @@ static int intel_pstate_verify_policy(struct cpufreq_policy_data *policy)
 	return 0;
 }
 
-static int intel_pstate_cpu_offline(struct cpufreq_policy *policy)
+static int intel_cpufreq_cpu_offline(struct cpufreq_policy *policy)
 {
 	struct cpudata *cpu = all_cpu_data[policy->cpu];
 
@@ -2577,11 +2577,11 @@ static int intel_pstate_cpu_online(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static void intel_pstate_stop_cpu(struct cpufreq_policy *policy)
+static int intel_pstate_cpu_offline(struct cpufreq_policy *policy)
 {
-	pr_debug("CPU %d stopping\n", policy->cpu);
-
 	intel_pstate_clear_update_util_hook(policy->cpu);
+
+	return intel_cpufreq_cpu_offline(policy);
 }
 
 static int intel_pstate_cpu_exit(struct cpufreq_policy *policy)
@@ -2654,7 +2654,6 @@ static struct cpufreq_driver intel_pstate = {
 	.resume		= intel_pstate_resume,
 	.init		= intel_pstate_cpu_init,
 	.exit		= intel_pstate_cpu_exit,
-	.stop_cpu	= intel_pstate_stop_cpu,
 	.offline	= intel_pstate_cpu_offline,
 	.online		= intel_pstate_cpu_online,
 	.update_limits	= intel_pstate_update_limits,
@@ -2956,7 +2955,7 @@ static struct cpufreq_driver intel_cpufreq = {
 	.fast_switch	= intel_cpufreq_fast_switch,
 	.init		= intel_cpufreq_cpu_init,
 	.exit		= intel_cpufreq_cpu_exit,
-	.offline	= intel_pstate_cpu_offline,
+	.offline	= intel_cpufreq_cpu_offline,
 	.online		= intel_pstate_cpu_online,
 	.suspend	= intel_pstate_suspend,
 	.resume		= intel_pstate_resume,

drivers/cpufreq/mediatek-cpufreq.c

@@ -537,6 +537,7 @@ static const struct of_device_id mtk_cpufreq_machines[] __initconst = {
 	{ .compatible = "mediatek,mt8173", },
 	{ .compatible = "mediatek,mt8176", },
 	{ .compatible = "mediatek,mt8183", },
+	{ .compatible = "mediatek,mt8365", },
 	{ .compatible = "mediatek,mt8516", },
 
 	{ }

drivers/cpufreq/powernv-cpufreq.c

@@ -875,7 +875,15 @@ static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 static int powernv_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 {
-	/* timer is deleted in cpufreq_cpu_stop() */
+	struct powernv_smp_call_data freq_data;
+	struct global_pstate_info *gpstates = policy->driver_data;
+
+	freq_data.pstate_id = idx_to_pstate(powernv_pstate_info.min);
+	freq_data.gpstate_id = idx_to_pstate(powernv_pstate_info.min);
+	smp_call_function_single(policy->cpu, set_pstate, &freq_data, 1);
+	if (gpstates)
+		del_timer_sync(&gpstates->timer);
+
 	kfree(policy->driver_data);
 
 	return 0;
@@ -1007,18 +1015,6 @@ static struct notifier_block powernv_cpufreq_opal_nb = {
 	.priority	= 0,
 };
 
-static void powernv_cpufreq_stop_cpu(struct cpufreq_policy *policy)
-{
-	struct powernv_smp_call_data freq_data;
-	struct global_pstate_info *gpstates = policy->driver_data;
-
-	freq_data.pstate_id = idx_to_pstate(powernv_pstate_info.min);
-	freq_data.gpstate_id = idx_to_pstate(powernv_pstate_info.min);
-	smp_call_function_single(policy->cpu, set_pstate, &freq_data, 1);
-	if (gpstates)
-		del_timer_sync(&gpstates->timer);
-}
-
 static unsigned int powernv_fast_switch(struct cpufreq_policy *policy,
 					unsigned int target_freq)
 {
@@ -1042,7 +1038,6 @@ static struct cpufreq_driver powernv_cpufreq_driver = {
 	.target_index	= powernv_cpufreq_target_index,
 	.fast_switch	= powernv_fast_switch,
 	.get		= powernv_cpufreq_get,
-	.stop_cpu	= powernv_cpufreq_stop_cpu,
 	.attr		= powernv_cpu_freq_attr,
 };
 

drivers/cpufreq/scmi-cpufreq.c

@@ -174,7 +174,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
 		nr_opp = dev_pm_opp_get_opp_count(cpu_dev);
 		if (nr_opp <= 0) {
 			dev_err(cpu_dev, "%s: No OPPs for this device: %d\n",
-				__func__, ret);
+				__func__, nr_opp);
 
 			ret = -ENODEV;
 			goto out_free_opp;

drivers/cpuidle/cpuidle-qcom-spm.c

@@ -87,6 +87,18 @@ static const struct spm_reg_data spm_reg_8974_8084_cpu  = {
 	.start_index[PM_SLEEP_MODE_SPC] = 3,
 };
 
+/* SPM register data for 8226 */
+static const struct spm_reg_data spm_reg_8226_cpu  = {
+	.reg_offset = spm_reg_offset_v2_1,
+	.spm_cfg = 0x0,
+	.spm_dly = 0x3C102800,
+	.seq = { 0x60, 0x03, 0x60, 0x0B, 0x0F, 0x20, 0x10, 0x80, 0x30, 0x90,
+		0x5B, 0x60, 0x03, 0x60, 0x3B, 0x76, 0x76, 0x0B, 0x94, 0x5B,
+		0x80, 0x10, 0x26, 0x30, 0x0F },
+	.start_index[PM_SLEEP_MODE_STBY] = 0,
+	.start_index[PM_SLEEP_MODE_SPC] = 5,
+};
+
 static const u8 spm_reg_offset_v1_1[SPM_REG_NR] = {
 	[SPM_REG_CFG]		= 0x08,
 	[SPM_REG_SPM_CTL]	= 0x20,
@@ -259,6 +271,8 @@ static struct spm_driver_data *spm_get_drv(struct platform_device *pdev,
 }
 
 static const struct of_device_id spm_match_table[] = {
+	{ .compatible = "qcom,msm8226-saw2-v2.1-cpu",
+	  .data = &spm_reg_8226_cpu },
 	{ .compatible = "qcom,msm8974-saw2-v2.1-cpu",
 	  .data = &spm_reg_8974_8084_cpu },
 	{ .compatible = "qcom,apq8084-saw2-v2.1-cpu",

include/dt-bindings/clock/mt8173-clk.h

@@ -186,7 +186,6 @@
 #define CLK_INFRA_PMICWRAP		11
 #define CLK_INFRA_CLK_13M		12
 #define CLK_INFRA_CA53SEL               13
-#define CLK_INFRA_CA57SEL               14 /* Deprecated. Don't use it. */
 #define CLK_INFRA_CA72SEL               14
 #define CLK_INFRA_NR_CLK                15
 

include/linux/arch_topology.h

@@ -37,6 +37,7 @@ bool topology_scale_freq_invariant(void);
 enum scale_freq_source {
 	SCALE_FREQ_SOURCE_CPUFREQ = 0,
 	SCALE_FREQ_SOURCE_ARCH,
+	SCALE_FREQ_SOURCE_CPPC,
 };
 
 struct scale_freq_data {

include/linux/cpufreq.h

@@ -330,15 +330,6 @@ struct cpufreq_driver {
 				       unsigned long target_perf,
 				       unsigned long capacity);
 
-	/*
-	 * Caches and returns the lowest driver-supported frequency greater than
-	 * or equal to the target frequency, subject to any driver limitations.
-	 * Does not set the frequency. Only to be implemented for drivers with
-	 * target().
-	 */
-	unsigned int	(*resolve_freq)(struct cpufreq_policy *policy,
-					unsigned int target_freq);
-
 	/*
 	 * Only for drivers with target_index() and CPUFREQ_ASYNC_NOTIFICATION
 	 * unset.
@@ -371,7 +362,6 @@ struct cpufreq_driver {
 	int		(*online)(struct cpufreq_policy *policy);
 	int		(*offline)(struct cpufreq_policy *policy);
 	int		(*exit)(struct cpufreq_policy *policy);
-	void		(*stop_cpu)(struct cpufreq_policy *policy);
 	int		(*suspend)(struct cpufreq_policy *policy);
 	int		(*resume)(struct cpufreq_policy *policy);
 

kernel/sched/core.c

@@ -7182,6 +7182,7 @@ int sched_setattr_nocheck(struct task_struct *p, const struct sched_attr *attr)
 {
 	return __sched_setscheduler(p, attr, false, true);
 }
+EXPORT_SYMBOL_GPL(sched_setattr_nocheck);
 
 /**
  * sched_setscheduler_nocheck - change the scheduling policy and/or RT priority of a thread from kernelspace.