When devices use dev_pm_ops the I2C API is implementing standard functionality
for integration with runtime PM and for checking for the presence of a per
device op. The PM core provides pm_generic_ functions implementing this
behaviour - use them to reduce coupling with future PM updates.

Signed-off-by: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
---
 drivers/i2c/i2c-core.c |   68 ++++++++++++++---------------------------------
 1 files changed, 20 insertions(+), 48 deletions(-)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 6b4cc56..6793c51 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c

@@ -196,88 +196,60 @@ static int i2c_device_pm_suspend(struct device *dev)
 {
 	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
 
-	if (pm) {
-		if (pm_runtime_suspended(dev))
-			return 0;
-		else
-			return pm->suspend ? pm->suspend(dev) : 0;
-	}
-
-	return i2c_legacy_suspend(dev, PMSG_SUSPEND);
+	if (pm)
+		return pm_generic_suspend(dev);