[PATCH] i2c-designware: define i2c_dw_pci_runtime_idle only with runtime pm

[Vincent StehlÃ]

Make sure i2c_dw_pci_runtime_idle() is defined only when actually used, when
CONFIG_PM_RUNTIME is defined.

This fixes the following compilation warning:

 drivers/i2c/busses/i2c-designware-pcidrv.c:188:12: warning: âi2c_dw_pci_runtime_idleâ defined but not used [-Wunused-function]

Signed-off-by: Vincent Stehlà <vincent.stehle@xxxxxxxxxxx>
Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx>
---
 drivers/i2c/busses/i2c-designware-pcidrv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index f6ed06c..2b5d3a6 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -185,6 +185,7 @@ static int i2c_dw_pci_resume(struct device *dev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_RUNTIME
 static int i2c_dw_pci_runtime_idle(struct device *dev)
 {
 	int err = pm_schedule_suspend(dev, 500);
@@ -194,6 +195,7 @@ static int i2c_dw_pci_runtime_idle(struct device *dev)
 		return 0;
 	return -EBUSY;
 }
+#endif
 
 static const struct dev_pm_ops i2c_dw_pm_ops = {
 	.resume         = i2c_dw_pci_resume,
-- 
1.8.4.rc3

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