i2c: i801: use i2c_mark_adapter_suspended/resumed

When entering the suspend callback, at first we should ensure that
transfers are finished and I2C core can't start further transfers.
Use i2c_mark_adapter_suspended() for this purpose, and complement it
with a call to i2c_mark_adapter_resumed() in the resume path.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-i801.c

@@ -1818,6 +1818,7 @@ static int i801_suspend(struct device *dev)
 {
 	struct i801_priv *priv = dev_get_drvdata(dev);
 
+	i2c_mark_adapter_suspended(&priv->adapter);
 	i801_restore_regs(priv);
 
 	return 0;
@@ -1829,6 +1830,7 @@ static int i801_resume(struct device *dev)
 
 	i801_setup_hstcfg(priv);
 	i801_enable_host_notify(&priv->adapter);
+	i2c_mark_adapter_resumed(&priv->adapter);
 
 	return 0;
 }