619 lines
15 KiB
C
619 lines
15 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Azoteq IQS621/622 Ambient Light Sensors
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*
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* Copyright (C) 2019 Jeff LaBundy <jeff@labundy.com>
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*/
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#include <linux/device.h>
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#include <linux/iio/events.h>
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#include <linux/iio/iio.h>
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#include <linux/kernel.h>
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#include <linux/mfd/iqs62x.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/notifier.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#define IQS621_ALS_FLAGS_LIGHT BIT(7)
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#define IQS621_ALS_FLAGS_RANGE GENMASK(3, 0)
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#define IQS621_ALS_UI_OUT 0x17
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#define IQS621_ALS_THRESH_DARK 0x80
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#define IQS621_ALS_THRESH_LIGHT 0x81
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#define IQS622_IR_RANGE 0x15
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#define IQS622_IR_FLAGS 0x16
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#define IQS622_IR_FLAGS_TOUCH BIT(1)
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#define IQS622_IR_FLAGS_PROX BIT(0)
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#define IQS622_IR_UI_OUT 0x17
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#define IQS622_IR_THRESH_PROX 0x91
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#define IQS622_IR_THRESH_TOUCH 0x92
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struct iqs621_als_private {
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struct iqs62x_core *iqs62x;
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struct iio_dev *indio_dev;
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struct notifier_block notifier;
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struct mutex lock;
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bool light_en;
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bool range_en;
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bool prox_en;
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u8 als_flags;
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u8 ir_flags_mask;
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u8 ir_flags;
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u8 thresh_light;
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u8 thresh_dark;
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u8 thresh_prox;
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};
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static int iqs621_als_init(struct iqs621_als_private *iqs621_als)
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{
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struct iqs62x_core *iqs62x = iqs621_als->iqs62x;
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unsigned int event_mask = 0;
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int ret;
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switch (iqs621_als->ir_flags_mask) {
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case IQS622_IR_FLAGS_TOUCH:
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ret = regmap_write(iqs62x->regmap, IQS622_IR_THRESH_TOUCH,
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iqs621_als->thresh_prox);
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break;
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case IQS622_IR_FLAGS_PROX:
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ret = regmap_write(iqs62x->regmap, IQS622_IR_THRESH_PROX,
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iqs621_als->thresh_prox);
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break;
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default:
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ret = regmap_write(iqs62x->regmap, IQS621_ALS_THRESH_LIGHT,
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iqs621_als->thresh_light);
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if (ret)
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return ret;
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ret = regmap_write(iqs62x->regmap, IQS621_ALS_THRESH_DARK,
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iqs621_als->thresh_dark);
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}
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if (ret)
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return ret;
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if (iqs621_als->light_en || iqs621_als->range_en)
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event_mask |= iqs62x->dev_desc->als_mask;
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if (iqs621_als->prox_en)
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event_mask |= iqs62x->dev_desc->ir_mask;
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return regmap_update_bits(iqs62x->regmap, IQS620_GLBL_EVENT_MASK,
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event_mask, 0);
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}
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static int iqs621_als_notifier(struct notifier_block *notifier,
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unsigned long event_flags, void *context)
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{
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struct iqs62x_event_data *event_data = context;
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struct iqs621_als_private *iqs621_als;
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struct iio_dev *indio_dev;
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bool light_new, light_old;
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bool prox_new, prox_old;
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u8 range_new, range_old;
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s64 timestamp;
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int ret;
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iqs621_als = container_of(notifier, struct iqs621_als_private,
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notifier);
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indio_dev = iqs621_als->indio_dev;
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timestamp = iio_get_time_ns(indio_dev);
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mutex_lock(&iqs621_als->lock);
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if (event_flags & BIT(IQS62X_EVENT_SYS_RESET)) {
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ret = iqs621_als_init(iqs621_als);
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if (ret) {
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dev_err(indio_dev->dev.parent,
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"Failed to re-initialize device: %d\n", ret);
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ret = NOTIFY_BAD;
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} else {
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ret = NOTIFY_OK;
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}
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goto err_mutex;
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}
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if (!iqs621_als->light_en && !iqs621_als->range_en &&
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!iqs621_als->prox_en) {
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ret = NOTIFY_DONE;
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goto err_mutex;
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}
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/* IQS621 only */
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light_new = event_data->als_flags & IQS621_ALS_FLAGS_LIGHT;
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light_old = iqs621_als->als_flags & IQS621_ALS_FLAGS_LIGHT;
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if (iqs621_als->light_en && light_new && !light_old)
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iio_push_event(indio_dev,
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IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0,
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IIO_EV_TYPE_THRESH,
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IIO_EV_DIR_RISING),
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timestamp);
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else if (iqs621_als->light_en && !light_new && light_old)
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iio_push_event(indio_dev,
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IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0,
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IIO_EV_TYPE_THRESH,
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IIO_EV_DIR_FALLING),
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timestamp);
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/* IQS621 and IQS622 */
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range_new = event_data->als_flags & IQS621_ALS_FLAGS_RANGE;
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range_old = iqs621_als->als_flags & IQS621_ALS_FLAGS_RANGE;
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if (iqs621_als->range_en && (range_new > range_old))
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iio_push_event(indio_dev,
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IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
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IIO_EV_TYPE_CHANGE,
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IIO_EV_DIR_RISING),
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timestamp);
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else if (iqs621_als->range_en && (range_new < range_old))
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iio_push_event(indio_dev,
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IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
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IIO_EV_TYPE_CHANGE,
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IIO_EV_DIR_FALLING),
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timestamp);
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/* IQS622 only */
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prox_new = event_data->ir_flags & iqs621_als->ir_flags_mask;
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prox_old = iqs621_als->ir_flags & iqs621_als->ir_flags_mask;
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if (iqs621_als->prox_en && prox_new && !prox_old)
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iio_push_event(indio_dev,
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IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0,
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IIO_EV_TYPE_THRESH,
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IIO_EV_DIR_RISING),
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timestamp);
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else if (iqs621_als->prox_en && !prox_new && prox_old)
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iio_push_event(indio_dev,
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IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0,
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IIO_EV_TYPE_THRESH,
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IIO_EV_DIR_FALLING),
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timestamp);
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iqs621_als->als_flags = event_data->als_flags;
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iqs621_als->ir_flags = event_data->ir_flags;
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ret = NOTIFY_OK;
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err_mutex:
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mutex_unlock(&iqs621_als->lock);
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return ret;
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}
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static void iqs621_als_notifier_unregister(void *context)
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{
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struct iqs621_als_private *iqs621_als = context;
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struct iio_dev *indio_dev = iqs621_als->indio_dev;
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int ret;
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ret = blocking_notifier_chain_unregister(&iqs621_als->iqs62x->nh,
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&iqs621_als->notifier);
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if (ret)
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dev_err(indio_dev->dev.parent,
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"Failed to unregister notifier: %d\n", ret);
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}
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static int iqs621_als_read_raw(struct iio_dev *indio_dev,
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struct iio_chan_spec const *chan,
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int *val, int *val2, long mask)
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{
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struct iqs621_als_private *iqs621_als = iio_priv(indio_dev);
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struct iqs62x_core *iqs62x = iqs621_als->iqs62x;
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int ret;
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__le16 val_buf;
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switch (chan->type) {
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case IIO_INTENSITY:
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ret = regmap_read(iqs62x->regmap, chan->address, val);
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if (ret)
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return ret;
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*val &= IQS621_ALS_FLAGS_RANGE;
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return IIO_VAL_INT;
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case IIO_PROXIMITY:
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case IIO_LIGHT:
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ret = regmap_raw_read(iqs62x->regmap, chan->address, &val_buf,
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sizeof(val_buf));
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if (ret)
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return ret;
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*val = le16_to_cpu(val_buf);
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return IIO_VAL_INT;
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default:
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return -EINVAL;
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}
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}
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static int iqs621_als_read_event_config(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan,
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enum iio_event_type type,
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enum iio_event_direction dir)
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{
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struct iqs621_als_private *iqs621_als = iio_priv(indio_dev);
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int ret;
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mutex_lock(&iqs621_als->lock);
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switch (chan->type) {
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case IIO_LIGHT:
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ret = iqs621_als->light_en;
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break;
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case IIO_INTENSITY:
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ret = iqs621_als->range_en;
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break;
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case IIO_PROXIMITY:
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ret = iqs621_als->prox_en;
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break;
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default:
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ret = -EINVAL;
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}
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mutex_unlock(&iqs621_als->lock);
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return ret;
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}
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static int iqs621_als_write_event_config(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan,
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enum iio_event_type type,
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enum iio_event_direction dir,
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int state)
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{
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struct iqs621_als_private *iqs621_als = iio_priv(indio_dev);
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struct iqs62x_core *iqs62x = iqs621_als->iqs62x;
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unsigned int val;
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int ret;
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mutex_lock(&iqs621_als->lock);
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ret = regmap_read(iqs62x->regmap, iqs62x->dev_desc->als_flags, &val);
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if (ret)
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goto err_mutex;
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iqs621_als->als_flags = val;
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switch (chan->type) {
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case IIO_LIGHT:
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ret = regmap_update_bits(iqs62x->regmap, IQS620_GLBL_EVENT_MASK,
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iqs62x->dev_desc->als_mask,
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iqs621_als->range_en || state ? 0 :
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0xFF);
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if (!ret)
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iqs621_als->light_en = state;
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break;
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case IIO_INTENSITY:
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ret = regmap_update_bits(iqs62x->regmap, IQS620_GLBL_EVENT_MASK,
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iqs62x->dev_desc->als_mask,
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iqs621_als->light_en || state ? 0 :
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0xFF);
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if (!ret)
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iqs621_als->range_en = state;
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break;
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|
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case IIO_PROXIMITY:
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ret = regmap_read(iqs62x->regmap, IQS622_IR_FLAGS, &val);
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if (ret)
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goto err_mutex;
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iqs621_als->ir_flags = val;
|
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|
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|
||
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ret = regmap_update_bits(iqs62x->regmap, IQS620_GLBL_EVENT_MASK,
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iqs62x->dev_desc->ir_mask,
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state ? 0 : 0xFF);
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if (!ret)
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iqs621_als->prox_en = state;
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break;
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|
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|
||
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default:
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ret = -EINVAL;
|
||
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}
|
||
|
|
|
||
|
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err_mutex:
|
||
|
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mutex_unlock(&iqs621_als->lock);
|
||
|
|
|
||
|
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return ret;
|
||
|
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}
|
||
|
|
|
||
|
|
static int iqs621_als_read_event_value(struct iio_dev *indio_dev,
|
||
|
|
const struct iio_chan_spec *chan,
|
||
|
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enum iio_event_type type,
|
||
|
|
enum iio_event_direction dir,
|
||
|
|
enum iio_event_info info,
|
||
|
|
int *val, int *val2)
|
||
|
|
{
|
||
|
|
struct iqs621_als_private *iqs621_als = iio_priv(indio_dev);
|
||
|
|
int ret = IIO_VAL_INT;
|
||
|
|
|
||
|
|
mutex_lock(&iqs621_als->lock);
|
||
|
|
|
||
|
|
switch (dir) {
|
||
|
|
case IIO_EV_DIR_RISING:
|
||
|
|
*val = iqs621_als->thresh_light * 16;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IIO_EV_DIR_FALLING:
|
||
|
|
*val = iqs621_als->thresh_dark * 4;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IIO_EV_DIR_EITHER:
|
||
|
|
if (iqs621_als->ir_flags_mask == IQS622_IR_FLAGS_TOUCH)
|
||
|
|
*val = iqs621_als->thresh_prox * 4;
|
||
|
|
else
|
||
|
|
*val = iqs621_als->thresh_prox;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
ret = -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
mutex_unlock(&iqs621_als->lock);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int iqs621_als_write_event_value(struct iio_dev *indio_dev,
|
||
|
|
const struct iio_chan_spec *chan,
|
||
|
|
enum iio_event_type type,
|
||
|
|
enum iio_event_direction dir,
|
||
|
|
enum iio_event_info info,
|
||
|
|
int val, int val2)
|
||
|
|
{
|
||
|
|
struct iqs621_als_private *iqs621_als = iio_priv(indio_dev);
|
||
|
|
struct iqs62x_core *iqs62x = iqs621_als->iqs62x;
|
||
|
|
unsigned int thresh_reg, thresh_val;
|
||
|
|
u8 ir_flags_mask, *thresh_cache;
|
||
|
|
int ret = -EINVAL;
|
||
|
|
|
||
|
|
mutex_lock(&iqs621_als->lock);
|
||
|
|
|
||
|
|
switch (dir) {
|
||
|
|
case IIO_EV_DIR_RISING:
|
||
|
|
thresh_reg = IQS621_ALS_THRESH_LIGHT;
|
||
|
|
thresh_val = val / 16;
|
||
|
|
|
||
|
|
thresh_cache = &iqs621_als->thresh_light;
|
||
|
|
ir_flags_mask = 0;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IIO_EV_DIR_FALLING:
|
||
|
|
thresh_reg = IQS621_ALS_THRESH_DARK;
|
||
|
|
thresh_val = val / 4;
|
||
|
|
|
||
|
|
thresh_cache = &iqs621_als->thresh_dark;
|
||
|
|
ir_flags_mask = 0;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IIO_EV_DIR_EITHER:
|
||
|
|
/*
|
||
|
|
* The IQS622 supports two detection thresholds, both measured
|
||
|
|
* in the same arbitrary units reported by read_raw: proximity
|
||
|
|
* (0 through 255 in steps of 1), and touch (0 through 1020 in
|
||
|
|
* steps of 4).
|
||
|
|
*
|
||
|
|
* Based on the single detection threshold chosen by the user,
|
||
|
|
* select the hardware threshold that gives the best trade-off
|
||
|
|
* between range and resolution.
|
||
|
|
*
|
||
|
|
* By default, the close-range (but coarse) touch threshold is
|
||
|
|
* chosen during probe.
|
||
|
|
*/
|
||
|
|
switch (val) {
|
||
|
|
case 0 ... 255:
|
||
|
|
thresh_reg = IQS622_IR_THRESH_PROX;
|
||
|
|
thresh_val = val;
|
||
|
|
|
||
|
|
ir_flags_mask = IQS622_IR_FLAGS_PROX;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 256 ... 1020:
|
||
|
|
thresh_reg = IQS622_IR_THRESH_TOUCH;
|
||
|
|
thresh_val = val / 4;
|
||
|
|
|
||
|
|
ir_flags_mask = IQS622_IR_FLAGS_TOUCH;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
goto err_mutex;
|
||
|
|
}
|
||
|
|
|
||
|
|
thresh_cache = &iqs621_als->thresh_prox;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
goto err_mutex;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (thresh_val > 0xFF)
|
||
|
|
goto err_mutex;
|
||
|
|
|
||
|
|
ret = regmap_write(iqs62x->regmap, thresh_reg, thresh_val);
|
||
|
|
if (ret)
|
||
|
|
goto err_mutex;
|
||
|
|
|
||
|
|
*thresh_cache = thresh_val;
|
||
|
|
iqs621_als->ir_flags_mask = ir_flags_mask;
|
||
|
|
|
||
|
|
err_mutex:
|
||
|
|
mutex_unlock(&iqs621_als->lock);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct iio_info iqs621_als_info = {
|
||
|
|
.read_raw = &iqs621_als_read_raw,
|
||
|
|
.read_event_config = iqs621_als_read_event_config,
|
||
|
|
.write_event_config = iqs621_als_write_event_config,
|
||
|
|
.read_event_value = iqs621_als_read_event_value,
|
||
|
|
.write_event_value = iqs621_als_write_event_value,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct iio_event_spec iqs621_als_range_events[] = {
|
||
|
|
{
|
||
|
|
.type = IIO_EV_TYPE_CHANGE,
|
||
|
|
.dir = IIO_EV_DIR_EITHER,
|
||
|
|
.mask_separate = BIT(IIO_EV_INFO_ENABLE),
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct iio_event_spec iqs621_als_light_events[] = {
|
||
|
|
{
|
||
|
|
.type = IIO_EV_TYPE_THRESH,
|
||
|
|
.dir = IIO_EV_DIR_EITHER,
|
||
|
|
.mask_separate = BIT(IIO_EV_INFO_ENABLE),
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.type = IIO_EV_TYPE_THRESH,
|
||
|
|
.dir = IIO_EV_DIR_RISING,
|
||
|
|
.mask_separate = BIT(IIO_EV_INFO_VALUE),
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.type = IIO_EV_TYPE_THRESH,
|
||
|
|
.dir = IIO_EV_DIR_FALLING,
|
||
|
|
.mask_separate = BIT(IIO_EV_INFO_VALUE),
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct iio_chan_spec iqs621_als_channels[] = {
|
||
|
|
{
|
||
|
|
.type = IIO_INTENSITY,
|
||
|
|
.address = IQS621_ALS_FLAGS,
|
||
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
|
||
|
|
.event_spec = iqs621_als_range_events,
|
||
|
|
.num_event_specs = ARRAY_SIZE(iqs621_als_range_events),
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.type = IIO_LIGHT,
|
||
|
|
.address = IQS621_ALS_UI_OUT,
|
||
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
|
||
|
|
.event_spec = iqs621_als_light_events,
|
||
|
|
.num_event_specs = ARRAY_SIZE(iqs621_als_light_events),
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct iio_event_spec iqs622_als_prox_events[] = {
|
||
|
|
{
|
||
|
|
.type = IIO_EV_TYPE_THRESH,
|
||
|
|
.dir = IIO_EV_DIR_EITHER,
|
||
|
|
.mask_separate = BIT(IIO_EV_INFO_ENABLE) |
|
||
|
|
BIT(IIO_EV_INFO_VALUE),
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct iio_chan_spec iqs622_als_channels[] = {
|
||
|
|
{
|
||
|
|
.type = IIO_INTENSITY,
|
||
|
|
.channel2 = IIO_MOD_LIGHT_BOTH,
|
||
|
|
.address = IQS622_ALS_FLAGS,
|
||
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
|
||
|
|
.event_spec = iqs621_als_range_events,
|
||
|
|
.num_event_specs = ARRAY_SIZE(iqs621_als_range_events),
|
||
|
|
.modified = true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.type = IIO_INTENSITY,
|
||
|
|
.channel2 = IIO_MOD_LIGHT_IR,
|
||
|
|
.address = IQS622_IR_RANGE,
|
||
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
|
||
|
|
.modified = true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.type = IIO_PROXIMITY,
|
||
|
|
.address = IQS622_IR_UI_OUT,
|
||
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
|
||
|
|
.event_spec = iqs622_als_prox_events,
|
||
|
|
.num_event_specs = ARRAY_SIZE(iqs622_als_prox_events),
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int iqs621_als_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct iqs62x_core *iqs62x = dev_get_drvdata(pdev->dev.parent);
|
||
|
|
struct iqs621_als_private *iqs621_als;
|
||
|
|
struct iio_dev *indio_dev;
|
||
|
|
unsigned int val;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*iqs621_als));
|
||
|
|
if (!indio_dev)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
iqs621_als = iio_priv(indio_dev);
|
||
|
|
iqs621_als->iqs62x = iqs62x;
|
||
|
|
iqs621_als->indio_dev = indio_dev;
|
||
|
|
|
||
|
|
if (iqs62x->dev_desc->prod_num == IQS622_PROD_NUM) {
|
||
|
|
ret = regmap_read(iqs62x->regmap, IQS622_IR_THRESH_TOUCH,
|
||
|
|
&val);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
iqs621_als->thresh_prox = val;
|
||
|
|
iqs621_als->ir_flags_mask = IQS622_IR_FLAGS_TOUCH;
|
||
|
|
|
||
|
|
indio_dev->channels = iqs622_als_channels;
|
||
|
|
indio_dev->num_channels = ARRAY_SIZE(iqs622_als_channels);
|
||
|
|
} else {
|
||
|
|
ret = regmap_read(iqs62x->regmap, IQS621_ALS_THRESH_LIGHT,
|
||
|
|
&val);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
iqs621_als->thresh_light = val;
|
||
|
|
|
||
|
|
ret = regmap_read(iqs62x->regmap, IQS621_ALS_THRESH_DARK,
|
||
|
|
&val);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
iqs621_als->thresh_dark = val;
|
||
|
|
|
||
|
|
indio_dev->channels = iqs621_als_channels;
|
||
|
|
indio_dev->num_channels = ARRAY_SIZE(iqs621_als_channels);
|
||
|
|
}
|
||
|
|
|
||
|
|
indio_dev->modes = INDIO_DIRECT_MODE;
|
||
|
|
indio_dev->name = iqs62x->dev_desc->dev_name;
|
||
|
|
indio_dev->info = &iqs621_als_info;
|
||
|
|
|
||
|
|
mutex_init(&iqs621_als->lock);
|
||
|
|
|
||
|
|
iqs621_als->notifier.notifier_call = iqs621_als_notifier;
|
||
|
|
ret = blocking_notifier_chain_register(&iqs621_als->iqs62x->nh,
|
||
|
|
&iqs621_als->notifier);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&pdev->dev, "Failed to register notifier: %d\n", ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = devm_add_action_or_reset(&pdev->dev,
|
||
|
|
iqs621_als_notifier_unregister,
|
||
|
|
iqs621_als);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
return devm_iio_device_register(&pdev->dev, indio_dev);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct platform_driver iqs621_als_platform_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "iqs621-als",
|
||
|
|
},
|
||
|
|
.probe = iqs621_als_probe,
|
||
|
|
};
|
||
|
|
module_platform_driver(iqs621_als_platform_driver);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Jeff LaBundy <jeff@labundy.com>");
|
||
|
|
MODULE_DESCRIPTION("Azoteq IQS621/622 Ambient Light Sensors");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_ALIAS("platform:iqs621-als");
|