[PATCH] iio: imx8qxp-adc: mark PM functions as __maybe_unused

[Arnd Bergmann]

From: Arnd Bergmann <arnd at arndb.de>

Without CONFIG_PM_SLEEP, the runtime suspend/resume functions
are unused, producing a warning:

drivers/iio/adc/imx8qxp-adc.c:433:12: error: 'imx8qxp_adc_runtime_resume' defined but not used [-Werror=unused-function]
  433 | static int imx8qxp_adc_runtime_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/adc/imx8qxp-adc.c:419:12: error: 'imx8qxp_adc_runtime_suspend' defined but not used [-Werror=unused-function]
  419 | static int imx8qxp_adc_runtime_suspend(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Mark them as __maybe_unused to shut up the compiler.

Fixes: 7bce634d02e6 ("iio: imx8qxp-adc: Add driver support for NXP IMX8QXP ADC")
Signed-off-by: Arnd Bergmann <arnd at arndb.de>
---
 drivers/iio/adc/imx8qxp-adc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/imx8qxp-adc.c b/drivers/iio/adc/imx8qxp-adc.c
index 5030e0d8318d..901dd8e1b32f 100644
--- a/drivers/iio/adc/imx8qxp-adc.c
+++ b/drivers/iio/adc/imx8qxp-adc.c
@@ -416,7 +416,7 @@ static int imx8qxp_adc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int imx8qxp_adc_runtime_suspend(struct device *dev)
+static __maybe_unused int imx8qxp_adc_runtime_suspend(struct device *dev)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct imx8qxp_adc *adc = iio_priv(indio_dev);
@@ -430,7 +430,7 @@ static int imx8qxp_adc_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int imx8qxp_adc_runtime_resume(struct device *dev)
+static __maybe_unused int imx8qxp_adc_runtime_resume(struct device *dev)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct imx8qxp_adc *adc = iio_priv(indio_dev);
-- 
2.29.2