linux-kernel - [PATCH 3/3] pwm: pwm-tiehrpwm: add CONFIG_PM

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Message-id: <005501ce1dfe$3141fd30$93c5f790$%han@samsung.com>
Date:	Mon, 11 Mar 2013 11:14:41 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Thierry Reding' <thierry.reding@...onic-design.de>
Cc:	linux-kernel@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 3/3] pwm: pwm-tiehrpwm: 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-tiehrpwm.c:562:12: warning: 'ehrpwm_pwm_suspend' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiehrpwm.c:580:12: warning: 'ehrpwm_pwm_resume' defined but not used [-Wunused-function

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/pwm/pwm-tiehrpwm.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 8b4c86f..d058ba9 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -559,6 +559,7 @@ void ehrpwm_pwm_restore_context(struct ehrpwm_pwm_chip *pc)
 	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);
@@ -594,6 +595,7 @@ static int ehrpwm_pwm_resume(struct device *dev)
 	ehrpwm_pwm_restore_context(pc);
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(ehrpwm_pwm_pm_ops, ehrpwm_pwm_suspend,
 		ehrpwm_pwm_resume);
-- 
1.7.2.5


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