[PATCH v3 1/3] PM: introduce pm_ptr() macro

[Paul Cercueil <paul@xxxxxxxxxxxxxxx>]

This macro is analogous to the infamous of_match_ptr(). If CONFIG_PM
is enabled, this macro will resolve to its argument, otherwise to NULL.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
---

Notes:
    v2: Remove pm_sleep_ptr() macro
    v3: Rebase on 5.8-rc5 and add Ulf's Reviewed-by

 include/linux/pm.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/pm.h b/include/linux/pm.h
index 121c104a4090..1f227c518db3 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -374,6 +374,12 @@ const struct dev_pm_ops name = { \
 	SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
 }
 
+#ifdef CONFIG_PM
+#define pm_ptr(_ptr) (_ptr)
+#else
+#define pm_ptr(_ptr) NULL
+#endif
+
 /*
  * PM_EVENT_ messages
  *
-- 
2.27.0