diff options
Diffstat (limited to 'drivers/iio/light/isl29125.c')
| -rw-r--r-- | drivers/iio/light/isl29125.c | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c index ed38edcd5efe..3acb8a4f1d12 100644 --- a/drivers/iio/light/isl29125.c +++ b/drivers/iio/light/isl29125.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * isl29125.c - Support for Intersil ISL29125 RGB light sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * RGB light sensor with 16-bit channels for red, green, blue); * 7-bit I2C slave address 0x44 * @@ -54,7 +51,6 @@ struct isl29125_data { struct i2c_client *client; u8 conf1; - u16 buffer[8]; /* 3x 16-bit, padding, 8 bytes timestamp */ }; #define ISL29125_CHANNEL(_color, _si) { \ @@ -130,11 +126,10 @@ static int isl29125_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: - ret = iio_device_claim_direct_mode(indio_dev); - if (ret) - return ret; + if (!iio_device_claim_direct(indio_dev)) + return -EBUSY; ret = isl29125_read_data(data, chan->scan_index); - iio_device_release_direct_mode(indio_dev); + iio_device_release_direct(indio_dev); if (ret < 0) return ret; *val = ret; @@ -179,18 +174,22 @@ static irqreturn_t isl29125_trigger_handler(int irq, void *p) struct iio_dev *indio_dev = pf->indio_dev; struct isl29125_data *data = iio_priv(indio_dev); int i, j = 0; + /* Ensure timestamp is naturally aligned */ + struct { + u16 chans[3]; + aligned_s64 timestamp; + } scan = { }; - for_each_set_bit(i, indio_dev->active_scan_mask, - indio_dev->masklength) { + iio_for_each_active_channel(indio_dev, i) { int ret = i2c_smbus_read_word_data(data->client, isl29125_regs[i].data); if (ret < 0) goto done; - data->buffer[j++] = ret; + scan.chans[j++] = ret; } - iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, + iio_push_to_buffers_with_ts(indio_dev, &scan, sizeof(scan), iio_get_time_ns(indio_dev)); done: @@ -216,7 +215,7 @@ static const struct iio_info isl29125_info = { .attrs = &isl29125_attribute_group, }; -static int isl29125_buffer_preenable(struct iio_dev *indio_dev) +static int isl29125_buffer_postenable(struct iio_dev *indio_dev) { struct isl29125_data *data = iio_priv(indio_dev); @@ -228,11 +227,6 @@ static int isl29125_buffer_preenable(struct iio_dev *indio_dev) static int isl29125_buffer_predisable(struct iio_dev *indio_dev) { struct isl29125_data *data = iio_priv(indio_dev); - int ret; - - ret = iio_triggered_buffer_predisable(indio_dev); - if (ret < 0) - return ret; data->conf1 &= ~ISL29125_MODE_MASK; data->conf1 |= ISL29125_MODE_PD; @@ -241,13 +235,11 @@ static int isl29125_buffer_predisable(struct iio_dev *indio_dev) } static const struct iio_buffer_setup_ops isl29125_buffer_setup_ops = { - .preenable = isl29125_buffer_preenable, - .postenable = &iio_triggered_buffer_postenable, + .postenable = isl29125_buffer_postenable, .predisable = isl29125_buffer_predisable, }; -static int isl29125_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int isl29125_probe(struct i2c_client *client) { struct isl29125_data *data; struct iio_dev *indio_dev; @@ -261,7 +253,6 @@ static int isl29125_probe(struct i2c_client *client, i2c_set_clientdata(client, indio_dev); data->client = client; - indio_dev->dev.parent = &client->dev; indio_dev->info = &isl29125_info; indio_dev->name = ISL29125_DRV_NAME; indio_dev->channels = isl29125_channels; @@ -306,18 +297,15 @@ static int isl29125_powerdown(struct isl29125_data *data) (data->conf1 & ~ISL29125_MODE_MASK) | ISL29125_MODE_PD); } -static int isl29125_remove(struct i2c_client *client) +static void isl29125_remove(struct i2c_client *client) { struct iio_dev *indio_dev = i2c_get_clientdata(client); iio_device_unregister(indio_dev); iio_triggered_buffer_cleanup(indio_dev); isl29125_powerdown(iio_priv(indio_dev)); - - return 0; } -#ifdef CONFIG_PM_SLEEP static int isl29125_suspend(struct device *dev) { struct isl29125_data *data = iio_priv(i2c_get_clientdata( @@ -332,12 +320,12 @@ static int isl29125_resume(struct device *dev) return i2c_smbus_write_byte_data(data->client, ISL29125_CONF1, data->conf1); } -#endif -static SIMPLE_DEV_PM_OPS(isl29125_pm_ops, isl29125_suspend, isl29125_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(isl29125_pm_ops, isl29125_suspend, + isl29125_resume); static const struct i2c_device_id isl29125_id[] = { - { "isl29125", 0 }, + { "isl29125" }, { } }; MODULE_DEVICE_TABLE(i2c, isl29125_id); @@ -345,7 +333,7 @@ MODULE_DEVICE_TABLE(i2c, isl29125_id); static struct i2c_driver isl29125_driver = { .driver = { .name = ISL29125_DRV_NAME, - .pm = &isl29125_pm_ops, + .pm = pm_sleep_ptr(&isl29125_pm_ops), }, .probe = isl29125_probe, .remove = isl29125_remove, |