ARM: PMU: Add runtime PM Support

[~andy/linux] / arch / arm / include / asm / pmu.h

diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index 4432305f4a2aa1b2e89bf69beaf032929816f78d..40d7dff8bc306db0c8a9ddaee92ddc097ee46179 100644 (file)
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -31,18 +31,22 @@ enum arm_pmu_type {
  *     interrupt and passed the address of the low level handler,
  *     and can be used to implement any platform specific handling
  *     before or after calling it.
- * @enable_irq: an optional handler which will be called after
- *     request_irq and be used to handle some platform specific
- *     irq enablement
- * @disable_irq: an optional handler which will be called before
- *     free_irq and be used to handle some platform specific
- *     irq disablement
+ * @runtime_resume: an optional handler which will be called by the
+ *     runtime PM framework following a call to pm_runtime_get().
+ *     Note that if pm_runtime_get() is called more than once in
+ *     succession this handler will only be called once.
+ * @runtime_suspend: an optional handler which will be called by the
+ *     runtime PM framework following a call to pm_runtime_put().
+ *     Note that if pm_runtime_get() is called more than once in
+ *     succession this handler will only be called following the
+ *     final call to pm_runtime_put() that actually disables the
+ *     hardware.
  */
 struct arm_pmu_platdata {
        irqreturn_t (*handle_irq)(int irq, void *dev,
                                  irq_handler_t pmu_handler);
-       void (*enable_irq)(int irq);
-       void (*disable_irq)(int irq);
+       int (*runtime_resume)(struct device *dev);
+       int (*runtime_suspend)(struct device *dev);
 };
 
 #ifdef CONFIG_CPU_HAS_PMU