diff options
Diffstat (limited to 'drivers/staging/iio/light/isl29028.c')
| -rw-r--r-- | drivers/staging/iio/light/isl29028.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c index 6bb6d37..5375e7a 100644 --- a/drivers/staging/iio/light/isl29028.c +++ b/drivers/staging/iio/light/isl29028.c @@ -3,6 +3,7 @@ * ISL29028 is Concurrent Ambient Light and Proximity Sensor * * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2016-2017 Brian Masney <masneyb@onstation.org> * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -63,6 +64,9 @@ #define ISL29028_POWER_OFF_DELAY_MS 2000 +static const unsigned int isl29028_prox_sleep_time[] = {800, 400, 200, 100, 75, + 50, 12, 0}; + enum isl29028_als_ir_mode { ISL29028_MODE_NONE = 0, ISL29028_MODE_ALS, @@ -78,22 +82,29 @@ struct isl29028_chip { enum isl29028_als_ir_mode als_ir_mode; }; -static int isl29028_set_proxim_sampling(struct isl29028_chip *chip, - unsigned int sampling) +static int isl29028_find_prox_sleep_time_index(int sampling) { - struct device *dev = regmap_get_device(chip->regmap); - static unsigned int prox_period[] = {800, 400, 200, 100, 75, 50, 12, 0}; unsigned int period = DIV_ROUND_UP(1000, sampling); - int sel, ret; + int i; - for (sel = 0; sel < ARRAY_SIZE(prox_period); ++sel) { - if (period >= prox_period[sel]) + for (i = 0; i < ARRAY_SIZE(isl29028_prox_sleep_time); ++i) { + if (period >= isl29028_prox_sleep_time[i]) break; } + return i; +} + +static int isl29028_set_proxim_sampling(struct isl29028_chip *chip, + unsigned int sampling) +{ + struct device *dev = regmap_get_device(chip->regmap); + int sleep_index, ret; + + sleep_index = isl29028_find_prox_sleep_time_index(sampling); ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE, ISL29028_CONF_PROX_SLP_MASK, - sel << ISL29028_CONF_PROX_SLP_SH); + sleep_index << ISL29028_CONF_PROX_SLP_SH); if (ret < 0) { dev_err(dev, "%s(): Error %d setting the proximity sampling\n", @@ -108,7 +119,7 @@ static int isl29028_set_proxim_sampling(struct isl29028_chip *chip, static int isl29028_enable_proximity(struct isl29028_chip *chip) { - int ret; + int sleep_index, ret; ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling); if (ret < 0) @@ -121,7 +132,8 @@ static int isl29028_enable_proximity(struct isl29028_chip *chip) return ret; /* Wait for conversion to be complete for first sample */ - mdelay(DIV_ROUND_UP(1000, chip->prox_sampling)); + sleep_index = isl29028_find_prox_sleep_time_index(chip->prox_sampling); + msleep(isl29028_prox_sleep_time[sleep_index]); return 0; } @@ -192,7 +204,7 @@ static int isl29028_set_als_ir_mode(struct isl29028_chip *chip, return ret; /* Need to wait for conversion time if ALS/IR mode enabled */ - mdelay(ISL29028_CONV_TIME_MS); + msleep(ISL29028_CONV_TIME_MS); chip->als_ir_mode = mode; @@ -645,7 +657,8 @@ static int __maybe_unused isl29028_resume(struct device *dev) } static const struct dev_pm_ops isl29028_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(isl29028_suspend, isl29028_resume) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) SET_RUNTIME_PM_OPS(isl29028_suspend, isl29028_resume, NULL) }; |
