pwm: tiehrpwm: don't build PM related functions when not needed
Fixes following warnings on AM335X with no PM_SLEEP
drivers/pwm/pwm-tiehrpwm.c:534:13: warning: 'ehrpwm_pwm_save_context' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiehrpwm.c:548:13: warning: 'ehrpwm_pwm_restore_context' defined but not used [-Wunused-function]
Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 3a31c08..f5e371d 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -529,6 +529,7 @@
return pwmchip_remove(&pc->chip);
}
+#ifdef CONFIG_PM_SLEEP
static void ehrpwm_pwm_save_context(struct ehrpwm_pwm_chip *pc)
{
pm_runtime_get_sync(pc->chip.dev);
@@ -555,7 +556,6 @@
ehrpwm_write(pc->mmio_base, TBCTL, pc->ctx.tbctl);
}
-#ifdef CONFIG_PM_SLEEP
static int ehrpwm_pwm_suspend(struct device *dev)
{
struct ehrpwm_pwm_chip *pc = dev_get_drvdata(dev);