1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0f9dc7dc15f1..f0bd5bcdf563 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1124,6 +1124,14 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
         if (res)
                 return res;
 
+        /* Drivers should switch to dev_pm_ops instead. */
+        if (driver->suspend)
+                pr_warn("i2c-core: driver [%s] using legacy suspend method\n",
+                        driver->driver.name);
+        if (driver->resume)
+                pr_warn("i2c-core: driver [%s] using legacy resume method\n",
+                        driver->driver.name);
+
         pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name);
 
         INIT_LIST_HEAD(&driver->clients);