pwm: pwm-tipwmss: add CONFIG_PM_SLEEP to suspend/resume functions

This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.

drivers/pwm/pwm-tipwmss.c:104:12: warning: 'pwmss_suspend' defined but not used [-Wunused-function]
drivers/pwm/pwm-tipwmss.c:113:12: warning: 'pwmss_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/pwm/pwm-tipwmss.c b/drivers/pwm/pwm-tipwmss.c
index 17cbc59660ec..c9c3d3a1e0eb 100644
--- a/drivers/pwm/pwm-tipwmss.c
+++ b/drivers/pwm/pwm-tipwmss.c
@@ -101,6 +101,7 @@ static int pwmss_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int pwmss_suspend(struct device *dev)
 {
         struct pwmss_info *info = dev_get_drvdata(dev);
@@ -118,6 +119,7 @@ static int pwmss_resume(struct device *dev)
         writew(info->pwmss_clkconfig, info->mmio_base + PWMSS_CLKCONFIG);
         return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(pwmss_pm_ops, pwmss_suspend, pwmss_resume);