diff options
| author | steven <skao@nvidia.com> | 2014-04-14 17:02:22 +0800 |
|---|---|---|
| committer | Riham Haidar <rhaidar@nvidia.com> | 2014-05-27 18:45:53 -0700 |
| commit | f79ae4b3c61c55df53e015e256c2c01b7c6e54b3 (patch) | |
| tree | c78b90782e7f2cc830ac295a94c29bfbaaf03808 /drivers/staging | |
| parent | bf107f4559d461bcb6840dff65a914826197d469 (diff) | |
staging: iio: cm3217: add optional value in DT.
Add below optional value can be overrid by DT for project.
If no add in DT will load default value.
1)integration-time.
Default:"480000"
2)max-range.
Default:"78643.2"
3)resolution.
Default:"307"
4)power-consumed.
Default:"1670"
Bug 1496947
Change-Id: I8718bf5636042bc801574c8e4177a12e5a948540
Signed-off-by: steven <skao@nvidia.com>
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/395755
Reviewed-on: http://git-master/r/411415
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-by: Mitch Luban <mluban@nvidia.com>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/iio/light/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/staging/iio/light/cm3217.c | 14 |
2 files changed, 18 insertions, 1 deletions
diff --git a/drivers/staging/iio/light/Kconfig b/drivers/staging/iio/light/Kconfig index 49d0b146450e..3630c68dee51 100644 --- a/drivers/staging/iio/light/Kconfig +++ b/drivers/staging/iio/light/Kconfig @@ -98,9 +98,14 @@ config SENSORS_TCS3772 config SENSORS_CM3217 tristate "CM3217 Ambient light sensor" depends on I2C + select LS_OF + select LS_SYSFS default n help Say Y here to enable the CM3217 Ambient Light Sensor. + This driver will provide the measurements of ambient light intensity + in its own units. + Data from sensor is accessible via sysfs. config LS_OF tristate "Device Tree parsing for Light sensor specification details" diff --git a/drivers/staging/iio/light/cm3217.c b/drivers/staging/iio/light/cm3217.c index e5cc8e7f7223..a955bb255d7e 100644 --- a/drivers/staging/iio/light/cm3217.c +++ b/drivers/staging/iio/light/cm3217.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. +/* Copyright (c) 2013-2014, NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -19,6 +19,8 @@ #include <linux/regulator/consumer.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> +#include <linux/iio/light/ls_sysfs.h> +#include <linux/iio/light/ls_dt.h> /* IT = Integration Time. The amount of time the photons hit the sensor. * STEP = the value from HW which is the photon count during IT. @@ -445,6 +447,7 @@ static int cm3217_probe(struct i2c_client *client, { struct cm3217_inf *inf; struct iio_dev *indio_dev; + struct lightsensor_spec *ls_spec; int err; indio_dev = iio_device_alloc(sizeof(*inf)); @@ -455,6 +458,15 @@ static int cm3217_probe(struct i2c_client *client, inf = iio_priv(indio_dev); + ls_spec = of_get_ls_spec(&client->dev); + if (!ls_spec) { + dev_warn(&client->dev, + "devname:%s func:%s line:%d invalid meta data, use default\n", + id->name, __func__, __LINE__); + } else { + fill_ls_attrs(ls_spec, cm3217_attrs); + } + inf->wq = create_singlethread_workqueue(CM3217_NAME); if (!inf->wq) { dev_err(&client->dev, "%s workqueue err\n", __func__); |