iio: adc: palmas_gpadc: retrieve a valid iio_dev in suspend/resume

commit d1aaf20ee655888c227d5137b7a63551f8d15416 upstream.

The suspend/resume functions were using dev_to_iio_dev() to get
the iio_dev. That only works on IIO dev's.  Use dev_get_drvdata()
for a platform device to get the correct iio_dev.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index 2bbf0c5..7d61b56 100644 (file)
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -775,7 +775,7 @@ static int palmas_adc_wakeup_reset(struct palmas_gpadc *adc)
 
 static int palmas_gpadc_suspend(struct device *dev)
 {
-       struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+       struct iio_dev *indio_dev = dev_get_drvdata(dev);
        struct palmas_gpadc *adc = iio_priv(indio_dev);
        int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
        int ret;
@@ -798,7 +798,7 @@ static int palmas_gpadc_suspend(struct device *dev)
 
 static int palmas_gpadc_resume(struct device *dev)
 {
-       struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+       struct iio_dev *indio_dev = dev_get_drvdata(dev);
        struct palmas_gpadc *adc = iio_priv(indio_dev);
        int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
        int ret;