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mailbox: imx: Mark PM functions as __maybe_unused 

When CONFIG_PM and CONFIG_PM_SLEEP are unset, the following warnings
occur:

drivers/mailbox/imx-mailbox.c:638:12: warning: 'imx_mu_runtime_resume'
defined but not used [-Wunused-function]
  638 | static int imx_mu_runtime_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~~~
drivers/mailbox/imx-mailbox.c:629:12: warning: 'imx_mu_runtime_suspend'
defined but not used [-Wunused-function]
  629 | static int imx_mu_runtime_suspend(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~~~~
drivers/mailbox/imx-mailbox.c:611:12: warning: 'imx_mu_resume_noirq'
defined but not used [-Wunused-function]
  611 | static int imx_mu_resume_noirq(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~
drivers/mailbox/imx-mailbox.c:601:12: warning: 'imx_mu_suspend_noirq'
defined but not used [-Wunused-function]
  601 | static int imx_mu_suspend_noirq(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~~

Mark these functions as __maybe_unused, which is the standard procedure
for PM functions.

Fixes: bb2b2624db ("mailbox: imx: Add runtime PM callback to handle MU clocks")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Nathan Chancellor 2020-06-22 18:04:03 -07:00 committed by Jassi Brar
parent 425ab03675
commit 03b70130ab
1 changed files with 4 additions and 4 deletions
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8
drivers/mailbox/imx-mailbox.c
View File

@ -598,7 +598,7 @@ static const struct of_device_id imx_mu_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, imx_mu_dt_ids);
static int imx_mu_suspend_noirq(struct device *dev)
static int __maybe_unused imx_mu_suspend_noirq(struct device *dev)
{
struct imx_mu_priv *priv = dev_get_drvdata(dev);
@ -608,7 +608,7 @@ static int imx_mu_suspend_noirq(struct device *dev)
return 0;
}
static int imx_mu_resume_noirq(struct device *dev)
static int __maybe_unused imx_mu_resume_noirq(struct device *dev)
{
struct imx_mu_priv *priv = dev_get_drvdata(dev);
@ -626,7 +626,7 @@ static int imx_mu_resume_noirq(struct device *dev)
return 0;
}
static int imx_mu_runtime_suspend(struct device *dev)
static int __maybe_unused imx_mu_runtime_suspend(struct device *dev)
{
struct imx_mu_priv *priv = dev_get_drvdata(dev);
@ -635,7 +635,7 @@ static int imx_mu_runtime_suspend(struct device *dev)
return 0;
}
static int imx_mu_runtime_resume(struct device *dev)
static int __maybe_unused imx_mu_runtime_resume(struct device *dev)
{
struct imx_mu_priv *priv = dev_get_drvdata(dev);
int ret;