Similar to the SET_*_PM_OPS(), these functions are to be used in
initializers of struct dev_pm_ops, for example:
static const struct dev_pm_ops foo_pm_ops = {
ASSIGN_RUNTIME_PM_OPS(foo_rpm_suspend, foo_rpm_resume, NULL)
ASSIGN_SYSTEM_SLEEP_PM_OPS(foo_suspend, foo_resume)
};
Unlike their SET_*_PM_OPS() counter parts, it is unnecessary to wrap the
function callbacks in #ifdeffery in order to prevent 'defined but not
used' warnings when the corresponding CONFIG_PM* options are unset.
Signed-off-by: Josh Cartwright <jo...@codeaurora.org>
---
include/linux/pm.h | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/include/linux/pm.h b/include/linux/pm.h
index db2be5f..3810d56 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -299,6 +299,15 @@ struct dev_pm_ops {
int (*runtime_idle)(struct device *dev);
};
+#define assign_if_pm_sleep(fn) \
+ assign_if_enabled(CONFIG_PM_SLEEP, fn)
+
+#define assign_if_pm_runtime(fn) \
+ assign_if_enabled(CONFIG_PM_RUNTIME, fn)
+
+#define assign_if_pm(fn) \
+ assign_if_enabled(CONFIG_PM, fn)
+
#ifdef CONFIG_PM_SLEEP
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
.suspend = suspend_fn, \
@@ -342,6 +351,36 @@ struct dev_pm_ops {
#endif
/*
+ * The ASSIGN_* variations of the above make wrapping the associated callback
+ * functions in preprocessor defines unnecessary.
+ */
+#define ASSIGN_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
+ .suspend = assign_if_pm_sleep(suspend_fn), \
+ .resume = assign_if_pm_sleep(resume_fn), \
+ .freeze = assign_if_pm_sleep(suspend_fn), \
+ .thaw = assign_if_pm_sleep(resume_fn), \
+ .poweroff = assign_if_pm_sleep(suspend_fn), \
+ .restore = assign_if_pm_sleep(resume_fn),
+
+#define ASSIGN_LATE_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
+ .suspend_late = assign_if_pm_sleep(suspend_fn), \
+ .resume_early = assign_if_pm_sleep(resume_fn), \
+ .freeze_late = assign_if_pm_sleep(suspend_fn), \
+ .thaw_early = assign_if_pm_sleep(resume_fn), \
+ .poweroff_late = assign_if_pm_sleep(suspend_fn), \
+ .restore_early = assign_if_pm_sleep(resume_fn),
+
+#define ASSIGN_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
+ .runtime_suspend = assign_if_pm_runtime(suspend_fn), \
+ .runtime_resume = assign_if_pm_runtime(resume_fn), \
+ .runtime_idle = assign_if_pm_runtime(idle_fn),
+
+#define ASSIGN_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
+ .runtime_suspend = assign_if_pm(suspend_fn), \
+ .runtime_resume = assign_if_pm(resume_fn), \
+ .runtime_idle = assign_if_pm(idle_fn),
+
+/*
* Use this if you want to use the same suspend and resume callbacks for
suspend
* to RAM and hibernation.
*/
--
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