iio: accel: bmc150: Always restore device to normal mode after suspend-resume

After probe we would put the device in normal mode, after a runtime
suspend-resume we would put it back in normal mode. But for a regular
suspend-resume we would only put it back in normal mode if triggers
or events have been requested.  This is not consistent and breaks
reading raw values after a suspend-resume.

This commit changes the regular resume path to also unconditionally put
the device back in normal mode, fixing reading of raw values not working
after a regular suspend-resume cycle.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 6b5d3be283c4e7e00f72bb32e550b52ab06e1526..807299dd45ebf0663fbc97b3831bd8f92148ec20 100644 (file)
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -193,7 +193,6 @@ struct bmc150_accel_data {
        struct regmap *regmap;
        int irq;
        struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
-       atomic_t active_intr;
        struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
        struct mutex mutex;
        u8 fifo_mode, watermark;
@@ -493,11 +492,6 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
                goto out_fix_power_state;
        }
 
-       if (state)
-               atomic_inc(&data->active_intr);
-       else
-               atomic_dec(&data->active_intr);
-
        return 0;
 
 out_fix_power_state:
@@ -1710,8 +1704,7 @@ static int bmc150_accel_resume(struct device *dev)
        struct bmc150_accel_data *data = iio_priv(indio_dev);
 
        mutex_lock(&data->mutex);
-       if (atomic_read(&data->active_intr))
-               bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+       bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
        bmc150_accel_fifo_set_mode(data);
        mutex_unlock(&data->mutex);