iio: tsl4531: Fix compiler error when CONFIG_PM_OPS is not defined

Fix the compiler error when the CONFIG_PM_OPS flag is not set.

drivers/iio/light/tsl4531.c:235:8: error: ‘tsl4531_suspend’ undeclared here (not in a function)
drivers/iio/light/tsl4531.c:235:8: error: ‘tsl4531_resume’ undeclared here (not in a function)

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c
index a15006e..0763b86 100644 (file)
--- a/drivers/iio/light/tsl4531.c
+++ b/drivers/iio/light/tsl4531.c
@@ -230,9 +230,12 @@ static int tsl4531_resume(struct device *dev)
        return i2c_smbus_write_byte_data(to_i2c_client(dev), TSL4531_CONTROL,
                TSL4531_MODE_NORMAL);
 }
-#endif
 
 static SIMPLE_DEV_PM_OPS(tsl4531_pm_ops, tsl4531_suspend, tsl4531_resume);
+#define TSL4531_PM_OPS (&tsl4531_pm_ops)
+#else
+#define TSL4531_PM_OPS NULL
+#endif
 
 static const struct i2c_device_id tsl4531_id[] = {
        { "tsl4531", 0 },
@@ -243,7 +246,7 @@ MODULE_DEVICE_TABLE(i2c, tsl4531_id);
 static struct i2c_driver tsl4531_driver = {
        .driver = {
                .name   = TSL4531_DRV_NAME,
-               .pm     = &tsl4531_pm_ops,
+               .pm     = TSL4531_PM_OPS,
                .owner  = THIS_MODULE,
        },
        .probe  = tsl4531_probe,