diff options
| author | Chen Jian <jackchen@nvidia.com> | 2014-02-02 16:22:06 +0800 |
|---|---|---|
| committer | Martin Chi <mchi@nvidia.com> | 2014-02-03 19:55:31 -0800 |
| commit | cdac514ead546e4a4c84dad2b31e367ca2928f01 (patch) | |
| tree | 54ebce7d8af5039e4dfd658d7769596c59f8cb0e /drivers | |
| parent | c3535e4f6a9cdd2a4b5f9decff12b542ed0f1ae6 (diff) | |
staging:iio:ltr659ps: fix suspend/resume routine
- Add suspend state flag, resume routine will act according
to suspend stage flag.
Bug 1450332
Change-Id: I668f5e954c4d138903cd5fc283acdee64493a541
Signed-off-by: Chen Jian <jackchen@nvidia.com>
Reviewed-on: http://git-master/r/362663
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Martin Chi <mchi@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/iio/light/ltr659ps.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/staging/iio/light/ltr659ps.c b/drivers/staging/iio/light/ltr659ps.c index 819c639bdfe6..8a73214e61b8 100644 --- a/drivers/staging/iio/light/ltr659ps.c +++ b/drivers/staging/iio/light/ltr659ps.c @@ -146,6 +146,10 @@ struct ltr659ps_data { int enable; int init; + /* suspend state */ +#define SUSPEND_NO_SUSPEND 0 +#define SUSPEND_RESUME_ENABLE 1 +#define SUSPEND_RESUMOE_NO_ENABLE 2 int suspend; int irq; @@ -1139,6 +1143,7 @@ static void ltr659ps_enable_sensor(struct i2c_client *client, int enable) struct iio_dev *indio_dev = i2c_get_clientdata(client); struct ltr659ps_data *data = iio_priv(indio_dev); + PROX_DEBUG("enable %d\n", enable); if (data->enable != enable) { if (enable) { regulator_enable(data->reg); @@ -1332,7 +1337,6 @@ err_init_sensor_failed: err_setup_failed: err_check_id_failed: regulator_disable(prox_data->reg); -err_regulator_enable: regulator_put(prox_data->reg); err_regulator_get: err_gpio_direction_input: @@ -1374,14 +1378,20 @@ static int ltr659ps_suspend(struct i2c_client *client, pm_message_t mesg) if (tegra_is_voice_call_active()) { mutex_lock(&data->prox_mtx); enable_irq_wake(client->irq); - data->suspend = 0; + data->suspend = SUSPEND_NO_SUSPEND; mutex_unlock(&data->prox_mtx); } else { - mutex_lock(&data->prox_mtx); - ltr659ps_enable_sensor(client, 0); - data->init = 0; - data->suspend = 1; - mutex_unlock(&data->prox_mtx); + if (data->enable == 0) { + mutex_lock(&data->prox_mtx); + data->suspend = SUSPEND_RESUMOE_NO_ENABLE; + mutex_unlock(&data->prox_mtx); + } else { + mutex_lock(&data->prox_mtx); + data->suspend = SUSPEND_RESUME_ENABLE; + ltr659ps_enable_sensor(client, 0); + data->init = 0; + mutex_unlock(&data->prox_mtx); + } } PROX_DEBUG("-\n"); return 0; @@ -1394,11 +1404,11 @@ static int ltr659ps_resume(struct i2c_client *client) PROX_DEBUG("+\n"); /* in voice call mode, do not suspend PS */ - if (data->suspend == 0) { + if (data->suspend == SUSPEND_NO_SUSPEND) { mutex_lock(&data->prox_mtx); disable_irq_wake(client->irq); mutex_unlock(&data->prox_mtx); - } else { + } else if (data->suspend == SUSPEND_RESUME_ENABLE) { mutex_lock(&data->prox_mtx); ltr659ps_enable_sensor(client, 1); mutex_unlock(&data->prox_mtx); |