diff options
| author | Hubert Chaumette <hubertx.chaumette@intel.com> | 2017-07-04 10:25:57 +0200 |
|---|---|---|
| committer | Mukendi Kabobo, NicanordX <nicanordx.mukendi.kabobo@intel.com> | 2017-07-11 02:54:02 -0700 |
| commit | f9233ee543b117acf1fad9dcd45903c1065bebd2 (patch) | |
| tree | fa2683d1704487d23670f0d56f81eecea094e924 | |
| parent | 906f00f0d70f59550494966f303dea43c2fccb82 (diff) | |
| download | x86-android-x86-shasta-3.10-nougat-dr-wear-release.tar.gz | |
sensors: reconfigure ALS on PM resumeandroid-wear-7.1.1_r0.38android-x86-shasta-3.10-nougat-dr-wear-release
Restore ALS parameters on resume. Fixes sensor latency after resume.
Also move the initialization delay after powering up rather than before
enabling to avoid unneeded delays on disabled/enabled transitions.
Change-Id: I1fd01bfb5c0841f51730006257a6ea6d51ff588a
Tracked-On: https://jira01.devtools.intel.com/browse/AW-6028
Signed-off-by: Hubert Chaumette <hubertx.chaumette@intel.com>
Reviewed-on: https://android.intel.com/591152
Reviewed-by: Nassiet, GaelleX <gaellex.nassiet@intel.com>
Reviewed-by: Ghaddab, RiadhX <riadhx.ghaddab@intel.com>
Reviewed-by: Dubray, SimonX <simonx.dubray@intel.com>
Reviewed-by: Korpershoek, MattijsX <mattijsx.korpershoek@intel.com>
Reviewed-by: Tasayco Loarte, VictorX <victorx.tasayco.loarte@intel.com>
| -rw-r--r-- | drivers/input/misc/tsl2583.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/input/misc/tsl2583.c b/drivers/input/misc/tsl2583.c index 3f44f4afeeac..d4159ee92d3f 100644 --- a/drivers/input/misc/tsl2583.c +++ b/drivers/input/misc/tsl2583.c @@ -352,15 +352,17 @@ static int taos_set_power(struct tsl258x_chip *chip, int on) } ret = taos_i2c_smbus_write_data(chip->client, TSL258X_CMD_REG | TSL258X_CNTRL, cntrl); - if (!ret && on) + if (!ret && on) { /* Transition from powered off to disabled */ chip->als_status = TSL258X_STATUS_SUSPENDED; - else if (!ret && !on) + mdelay(3); + } else if (!ret && !on) { /* Transition from enabled/disabled to powered off */ chip->als_status = TSL258X_STATUS_POWERED_OFF; - else + } else { dev_err(&chip->client->dev, "failed to power %s the sensor\n", (on == 1) ? "up" : "down"); + } return ret; } @@ -374,7 +376,6 @@ static int taos_set_enable(struct tsl258x_chip *chip, int en) cntrl = TSL258X_CNTL_PWR_ON; dev_info(&chip->client->dev, "disabling sensor\n"); } else { - mdelay(3); cntrl = TSL258X_CNTL_PWR_ON | TSL258X_CNTL_ADC_ENBL; dev_info(&chip->client->dev, "enabling sensor\n"); @@ -1291,11 +1292,22 @@ static int taos_suspend(struct device *dev) static int taos_resume(struct device *dev) { struct tsl258x_chip *chip = dev_get_drvdata(dev); + int gain; int ret = 0; mutex_lock(&chip->als_mutex); - if (chip->als_status == TSL258X_STATUS_POWERED_OFF) + if (chip->als_status == TSL258X_STATUS_POWERED_OFF) { ret = taos_set_power(chip, true); + if (ret) + goto error; + ret = taos_set_als_time(chip, chip->taos_settings.als_time); + if (ret) + goto error; + gain = tsl2584_als_gain_tbl[chip->taos_settings.als_gain_idex].gain_val; + ret = taos_set_gain(chip, gain); + } + +error: mutex_unlock(&chip->als_mutex); return ret; } |