drivers: cpu_cooling: allow platform freq mitigation
Allow platform drivers to register with CPU cooling with their frequency
mitigation functions. This allows the platform drivers to provide the
callbacks to get the current ceil limit and to set the floor and ceil
limits for the cpu.
Change-Id: I47960b002bf1bce1cd588de2892de46793a95562
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h
index c156f50..4fa2623 100644
--- a/include/linux/cpu_cooling.h
+++ b/include/linux/cpu_cooling.h
@@ -30,6 +30,11 @@
typedef int (*get_static_t)(cpumask_t *cpumask, int interval,
unsigned long voltage, u32 *power);
+typedef int (*plat_mitig_t)(int cpu, u32 clip_freq);
+
+struct cpu_cooling_ops {
+ plat_mitig_t ceil_limit, floor_limit;
+};
#ifdef CONFIG_CPU_THERMAL
/**
@@ -43,6 +48,10 @@
cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
u32 capacitance, get_static_t plat_static_func);
+struct thermal_cooling_device *
+cpufreq_platform_cooling_register(const struct cpumask *clip_cpus,
+ struct cpu_cooling_ops *ops);
+
/**
* of_cpufreq_cooling_register - create cpufreq cooling device based on DT.
* @np: a valid struct device_node to the cooling device device tree node.
@@ -112,6 +121,13 @@
return NULL;
}
+static inline struct thermal_cooling_device *
+cpufreq_platform_cooling_register(const struct cpumask *clip_cpus,
+ struct cpu_cooling_ops *ops)
+{
+ return NULL;
+}
+
static inline
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
{