Move ISL29028 ALS / Proximity Sensor out of staging and into mainline.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
in lux, proximity infrared sensing and normal infrared sensing.
Data from sensor is accessible via sysfs.
+config SENSORS_ISL29028
+ tristate "Intersil ISL29028 Concurrent Light and Proximity Sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Provides driver for the Intersil's ISL29028 device.
+ This driver supports the sysfs interface to get the ALS, IR intensity,
+ Proximity value via iio. The ISL29028 provides the concurrent sensing
+ of ambient light and proximity.
+
config ISL29125
tristate "Intersil ISL29125 digital color light sensor"
depends on I2C
obj-$(CONFIG_HID_SENSOR_ALS) += hid-sensor-als.o
obj-$(CONFIG_HID_SENSOR_PROX) += hid-sensor-prox.o
obj-$(CONFIG_SENSORS_ISL29018) += isl29018.o
+obj-$(CONFIG_SENSORS_ISL29028) += isl29028.o
obj-$(CONFIG_ISL29125) += isl29125.o
obj-$(CONFIG_JSA1212) += jsa1212.o
obj-$(CONFIG_SENSORS_LM3533) += lm3533-als.o
--- /dev/null
+/*
+ * IIO driver for the light sensor ISL29028.
+ * 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,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/pm_runtime.h>
+
+#define ISL29028_CONV_TIME_MS 100
+
+#define ISL29028_REG_CONFIGURE 0x01
+
+#define ISL29028_CONF_ALS_IR_MODE_ALS 0
+#define ISL29028_CONF_ALS_IR_MODE_IR BIT(0)
+#define ISL29028_CONF_ALS_IR_MODE_MASK BIT(0)
+
+#define ISL29028_CONF_ALS_RANGE_LOW_LUX 0
+#define ISL29028_CONF_ALS_RANGE_HIGH_LUX BIT(1)
+#define ISL29028_CONF_ALS_RANGE_MASK BIT(1)
+
+#define ISL29028_CONF_ALS_DIS 0
+#define ISL29028_CONF_ALS_EN BIT(2)
+#define ISL29028_CONF_ALS_EN_MASK BIT(2)
+
+#define ISL29028_CONF_PROX_SLP_SH 4
+#define ISL29028_CONF_PROX_SLP_MASK (7 << ISL29028_CONF_PROX_SLP_SH)
+
+#define ISL29028_CONF_PROX_EN BIT(7)
+#define ISL29028_CONF_PROX_EN_MASK BIT(7)
+
+#define ISL29028_REG_INTERRUPT 0x02
+
+#define ISL29028_REG_PROX_DATA 0x08
+#define ISL29028_REG_ALSIR_L 0x09
+#define ISL29028_REG_ALSIR_U 0x0A
+
+#define ISL29028_REG_TEST1_MODE 0x0E
+#define ISL29028_REG_TEST2_MODE 0x0F
+
+#define ISL29028_NUM_REGS (ISL29028_REG_TEST2_MODE + 1)
+
+#define ISL29028_POWER_OFF_DELAY_MS 2000
+
+struct isl29028_prox_data {
+ int sampling_int;
+ int sampling_fract;
+ int sleep_time;
+};
+
+static const struct isl29028_prox_data isl29028_prox_data[] = {
+ { 1, 250000, 800 },
+ { 2, 500000, 400 },
+ { 5, 0, 200 },
+ { 10, 0, 100 },
+ { 13, 300000, 75 },
+ { 20, 0, 50 },
+ { 80, 0, 13 }, /*
+ * Note: Data sheet lists 12.5 ms sleep time.
+ * Round up a half millisecond for msleep().
+ */
+ { 100, 0, 0 }
+};
+
+enum isl29028_als_ir_mode {
+ ISL29028_MODE_NONE = 0,
+ ISL29028_MODE_ALS,
+ ISL29028_MODE_IR,
+};
+
+struct isl29028_chip {
+ struct mutex lock;
+ struct regmap *regmap;
+ int prox_sampling_int;
+ int prox_sampling_frac;
+ bool enable_prox;
+ int lux_scale;
+ enum isl29028_als_ir_mode als_ir_mode;
+};
+
+static int isl29028_find_prox_sleep_index(int sampling_int, int sampling_fract)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(isl29028_prox_data); ++i) {
+ if (isl29028_prox_data[i].sampling_int == sampling_int &&
+ isl29028_prox_data[i].sampling_fract == sampling_fract)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
+ int sampling_int, int sampling_fract)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int sleep_index, ret;
+
+ sleep_index = isl29028_find_prox_sleep_index(sampling_int,
+ sampling_fract);
+ if (sleep_index < 0)
+ return sleep_index;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_PROX_SLP_MASK,
+ sleep_index << ISL29028_CONF_PROX_SLP_SH);
+
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d setting the proximity sampling\n",
+ __func__, ret);
+ return ret;
+ }
+
+ chip->prox_sampling_int = sampling_int;
+ chip->prox_sampling_frac = sampling_fract;
+
+ return ret;
+}
+
+static int isl29028_enable_proximity(struct isl29028_chip *chip)
+{
+ int prox_index, ret;
+
+ ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling_int,
+ chip->prox_sampling_frac);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_PROX_EN_MASK,
+ ISL29028_CONF_PROX_EN);
+ if (ret < 0)
+ return ret;
+
+ /* Wait for conversion to be complete for first sample */
+ prox_index = isl29028_find_prox_sleep_index(chip->prox_sampling_int,
+ chip->prox_sampling_frac);
+ if (prox_index < 0)
+ return prox_index;
+
+ msleep(isl29028_prox_data[prox_index].sleep_time);
+
+ return 0;
+}
+
+static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int val = (lux_scale == 2000) ? ISL29028_CONF_ALS_RANGE_HIGH_LUX :
+ ISL29028_CONF_ALS_RANGE_LOW_LUX;
+ int ret;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_RANGE_MASK, val);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d setting the ALS scale\n", __func__,
+ ret);
+ return ret;
+ }
+
+ chip->lux_scale = lux_scale;
+
+ return ret;
+}
+
+static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
+ enum isl29028_als_ir_mode mode)
+{
+ int ret;
+
+ if (chip->als_ir_mode == mode)
+ return 0;
+
+ ret = isl29028_set_als_scale(chip, chip->lux_scale);
+ if (ret < 0)
+ return ret;
+
+ switch (mode) {
+ case ISL29028_MODE_ALS:
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_IR_MODE_MASK,
+ ISL29028_CONF_ALS_IR_MODE_ALS);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_RANGE_MASK,
+ ISL29028_CONF_ALS_RANGE_HIGH_LUX);
+ break;
+ case ISL29028_MODE_IR:
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_IR_MODE_MASK,
+ ISL29028_CONF_ALS_IR_MODE_IR);
+ break;
+ case ISL29028_MODE_NONE:
+ return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_EN_MASK,
+ ISL29028_CONF_ALS_DIS);
+ }
+
+ if (ret < 0)
+ return ret;
+
+ /* Enable the ALS/IR */
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_EN_MASK,
+ ISL29028_CONF_ALS_EN);
+ if (ret < 0)
+ return ret;
+
+ /* Need to wait for conversion time if ALS/IR mode enabled */
+ msleep(ISL29028_CONV_TIME_MS);
+
+ chip->als_ir_mode = mode;
+
+ return 0;
+}
+
+static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ unsigned int lsb;
+ unsigned int msb;
+ int ret;
+
+ ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_L, &lsb);
+ if (ret < 0) {
+ dev_err(dev,
+ "%s(): Error %d reading register ALSIR_L\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_U, &msb);
+ if (ret < 0) {
+ dev_err(dev,
+ "%s(): Error %d reading register ALSIR_U\n",
+ __func__, ret);
+ return ret;
+ }
+
+ *als_ir = ((msb & 0xF) << 8) | (lsb & 0xFF);
+
+ return 0;
+}
+
+static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ unsigned int data;
+ int ret;
+
+ if (!chip->enable_prox) {
+ ret = isl29028_enable_proximity(chip);
+ if (ret < 0)
+ return ret;
+
+ chip->enable_prox = true;
+ }
+
+ ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d reading register PROX_DATA\n",
+ __func__, ret);
+ return ret;
+ }
+
+ *prox = data;
+
+ return 0;
+}
+
+static int isl29028_als_get(struct isl29028_chip *chip, int *als_data)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+ int als_ir_data;
+
+ ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_ALS);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d enabling ALS mode\n", __func__,
+ ret);
+ return ret;
+ }
+
+ ret = isl29028_read_als_ir(chip, &als_ir_data);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * convert als data count to lux.
+ * if lux_scale = 125, lux = count * 0.031
+ * if lux_scale = 2000, lux = count * 0.49
+ */
+ if (chip->lux_scale == 125)
+ als_ir_data = (als_ir_data * 31) / 1000;
+ else
+ als_ir_data = (als_ir_data * 49) / 100;
+
+ *als_data = als_ir_data;
+
+ return 0;
+}
+
+static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_IR);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d enabling IR mode\n", __func__,
+ ret);
+ return ret;
+ }
+
+ return isl29028_read_als_ir(chip, ir_data);
+}
+
+static int isl29028_set_pm_runtime_busy(struct isl29028_chip *chip, bool on)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ if (on) {
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0)
+ pm_runtime_put_noidle(dev);
+ } else {
+ pm_runtime_mark_last_busy(dev);
+ ret = pm_runtime_put_autosuspend(dev);
+ }
+
+ return ret;
+}
+
+/* Channel IO */
+static int isl29028_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val, int val2, long mask)
+{
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ ret = isl29028_set_pm_runtime_busy(chip, true);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&chip->lock);
+
+ ret = -EINVAL;
+ switch (chan->type) {
+ case IIO_PROXIMITY:
+ if (mask != IIO_CHAN_INFO_SAMP_FREQ) {
+ dev_err(dev,
+ "%s(): proximity: Mask value 0x%08lx is not supported\n",
+ __func__, mask);
+ break;
+ }
+
+ if (val < 1 || val > 100) {
+ dev_err(dev,
+ "%s(): proximity: Sampling frequency %d is not in the range [1:100]\n",
+ __func__, val);
+ break;
+ }
+
+ ret = isl29028_set_proxim_sampling(chip, val, val2);
+ break;
+ case IIO_LIGHT:
+ if (mask != IIO_CHAN_INFO_SCALE) {
+ dev_err(dev,
+ "%s(): light: Mask value 0x%08lx is not supported\n",
+ __func__, mask);
+ break;
+ }
+
+ if (val != 125 && val != 2000) {
+ dev_err(dev,
+ "%s(): light: Lux scale %d is not in the set {125, 2000}\n",
+ __func__, val);
+ break;
+ }
+
+ ret = isl29028_set_als_scale(chip, val);
+ break;
+ default:
+ dev_err(dev, "%s(): Unsupported channel type %x\n",
+ __func__, chan->type);
+ break;
+ }
+
+ mutex_unlock(&chip->lock);
+
+ if (ret < 0)
+ return ret;
+
+ ret = isl29028_set_pm_runtime_busy(chip, false);
+ if (ret < 0)
+ return ret;
+
+ return ret;
+}
+
+static int isl29028_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret, pm_ret;
+
+ ret = isl29028_set_pm_runtime_busy(chip, true);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&chip->lock);
+
+ ret = -EINVAL;
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ case IIO_CHAN_INFO_PROCESSED:
+ switch (chan->type) {
+ case IIO_LIGHT:
+ ret = isl29028_als_get(chip, val);
+ break;
+ case IIO_INTENSITY:
+ ret = isl29028_ir_get(chip, val);
+ break;
+ case IIO_PROXIMITY:
+ ret = isl29028_read_proxim(chip, val);
+ break;
+ default:
+ break;
+ }
+
+ if (ret < 0)
+ break;
+
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ if (chan->type != IIO_PROXIMITY)
+ break;
+
+ *val = chip->prox_sampling_int;
+ *val2 = chip->prox_sampling_frac;
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_CHAN_INFO_SCALE:
+ if (chan->type != IIO_LIGHT)
+ break;
+ *val = chip->lux_scale;
+ ret = IIO_VAL_INT;
+ break;
+ default:
+ dev_err(dev, "%s(): mask value 0x%08lx is not supported\n",
+ __func__, mask);
+ break;
+ }
+
+ mutex_unlock(&chip->lock);
+
+ if (ret < 0)
+ return ret;
+
+ /**
+ * Preserve the ret variable if the call to
+ * isl29028_set_pm_runtime_busy() is successful so the reading
+ * (if applicable) is returned to user space.
+ */
+ pm_ret = isl29028_set_pm_runtime_busy(chip, false);
+ if (pm_ret < 0)
+ return pm_ret;
+
+ return ret;
+}
+
+static IIO_CONST_ATTR(in_proximity_sampling_frequency_available,
+ "1.25 2.5 5 10 13.3 20 80 100");
+static IIO_CONST_ATTR(in_illuminance_scale_available, "125 2000");
+
+#define ISL29028_CONST_ATTR(name) (&iio_const_attr_##name.dev_attr.attr)
+static struct attribute *isl29028_attributes[] = {
+ ISL29028_CONST_ATTR(in_proximity_sampling_frequency_available),
+ ISL29028_CONST_ATTR(in_illuminance_scale_available),
+ NULL,
+};
+
+static const struct attribute_group isl29108_group = {
+ .attrs = isl29028_attributes,
+};
+
+static const struct iio_chan_spec isl29028_channels[] = {
+ {
+ .type = IIO_LIGHT,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ }, {
+ .type = IIO_INTENSITY,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_PROXIMITY,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ }
+};
+
+static const struct iio_info isl29028_info = {
+ .attrs = &isl29108_group,
+ .driver_module = THIS_MODULE,
+ .read_raw = isl29028_read_raw,
+ .write_raw = isl29028_write_raw,
+};
+
+static int isl29028_clear_configure_reg(struct isl29028_chip *chip)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ ret = regmap_write(chip->regmap, ISL29028_REG_CONFIGURE, 0x0);
+ if (ret < 0)
+ dev_err(dev, "%s(): Error %d clearing the CONFIGURE register\n",
+ __func__, ret);
+
+ chip->als_ir_mode = ISL29028_MODE_NONE;
+ chip->enable_prox = false;
+
+ return ret;
+}
+
+static bool isl29028_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case ISL29028_REG_INTERRUPT:
+ case ISL29028_REG_PROX_DATA:
+ case ISL29028_REG_ALSIR_L:
+ case ISL29028_REG_ALSIR_U:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config isl29028_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .volatile_reg = isl29028_is_volatile_reg,
+ .max_register = ISL29028_NUM_REGS - 1,
+ .num_reg_defaults_raw = ISL29028_NUM_REGS,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int isl29028_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct isl29028_chip *chip;
+ struct iio_dev *indio_dev;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ chip = iio_priv(indio_dev);
+
+ i2c_set_clientdata(client, indio_dev);
+ mutex_init(&chip->lock);
+
+ chip->regmap = devm_regmap_init_i2c(client, &isl29028_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ ret = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "%s: Error %d initializing regmap\n",
+ __func__, ret);
+ return ret;
+ }
+
+ chip->enable_prox = false;
+ chip->prox_sampling_int = 20;
+ chip->prox_sampling_frac = 0;
+ chip->lux_scale = 2000;
+
+ ret = regmap_write(chip->regmap, ISL29028_REG_TEST1_MODE, 0x0);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "%s(): Error %d writing to TEST1_MODE register\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_write(chip->regmap, ISL29028_REG_TEST2_MODE, 0x0);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "%s(): Error %d writing to TEST2_MODE register\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = isl29028_clear_configure_reg(chip);
+ if (ret < 0)
+ return ret;
+
+ indio_dev->info = &isl29028_info;
+ indio_dev->channels = isl29028_channels;
+ indio_dev->num_channels = ARRAY_SIZE(isl29028_channels);
+ indio_dev->name = id->name;
+ indio_dev->dev.parent = &client->dev;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ pm_runtime_enable(&client->dev);
+ pm_runtime_set_autosuspend_delay(&client->dev,
+ ISL29028_POWER_OFF_DELAY_MS);
+ pm_runtime_use_autosuspend(&client->dev);
+
+ ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "%s(): iio registration failed with error %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int isl29028_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+
+ iio_device_unregister(indio_dev);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+
+ return isl29028_clear_configure_reg(chip);
+}
+
+static int __maybe_unused isl29028_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+ int ret;
+
+ mutex_lock(&chip->lock);
+
+ ret = isl29028_clear_configure_reg(chip);
+
+ mutex_unlock(&chip->lock);
+
+ return ret;
+}
+
+static int __maybe_unused isl29028_resume(struct device *dev)
+{
+ /**
+ * The specific component (ALS/IR or proximity) will enable itself as
+ * needed the next time that the user requests a reading. This is done
+ * above in isl29028_set_als_ir_mode() and isl29028_enable_proximity().
+ */
+ return 0;
+}
+
+static const struct dev_pm_ops isl29028_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_RUNTIME_PM_OPS(isl29028_suspend, isl29028_resume, NULL)
+};
+
+static const struct i2c_device_id isl29028_id[] = {
+ {"isl29028", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, isl29028_id);
+
+static const struct of_device_id isl29028_of_match[] = {
+ { .compatible = "isl,isl29028", }, /* for backward compat., don't use */
+ { .compatible = "isil,isl29028", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, isl29028_of_match);
+
+static struct i2c_driver isl29028_driver = {
+ .driver = {
+ .name = "isl29028",
+ .pm = &isl29028_pm_ops,
+ .of_match_table = isl29028_of_match,
+ },
+ .probe = isl29028_probe,
+ .remove = isl29028_remove,
+ .id_table = isl29028_id,
+};
+
+module_i2c_driver(isl29028_driver);
+
+MODULE_DESCRIPTION("ISL29028 Ambient Light and Proximity Sensor driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
#
menu "Light sensors"
-config SENSORS_ISL29028
- tristate "Intersil ISL29028 Concurrent Light and Proximity Sensor"
- depends on I2C
- select REGMAP_I2C
- help
- Provides driver for the Intersil's ISL29028 device.
- This driver supports the sysfs interface to get the ALS, IR intensity,
- Proximity value via iio. The ISL29028 provides the concurrent sensing
- of ambient light and proximity.
-
config TSL2x7x
tristate "TAOS TSL/TMD2x71 and TSL/TMD2x72 Family of light and proximity sensors"
depends on I2C
# Makefile for industrial I/O Light sensors
#
-obj-$(CONFIG_SENSORS_ISL29028) += isl29028.o
obj-$(CONFIG_TSL2x7x) += tsl2x7x_core.o
+++ /dev/null
-/*
- * IIO driver for the light sensor ISL29028.
- * 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,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/regmap.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/pm_runtime.h>
-
-#define ISL29028_CONV_TIME_MS 100
-
-#define ISL29028_REG_CONFIGURE 0x01
-
-#define ISL29028_CONF_ALS_IR_MODE_ALS 0
-#define ISL29028_CONF_ALS_IR_MODE_IR BIT(0)
-#define ISL29028_CONF_ALS_IR_MODE_MASK BIT(0)
-
-#define ISL29028_CONF_ALS_RANGE_LOW_LUX 0
-#define ISL29028_CONF_ALS_RANGE_HIGH_LUX BIT(1)
-#define ISL29028_CONF_ALS_RANGE_MASK BIT(1)
-
-#define ISL29028_CONF_ALS_DIS 0
-#define ISL29028_CONF_ALS_EN BIT(2)
-#define ISL29028_CONF_ALS_EN_MASK BIT(2)
-
-#define ISL29028_CONF_PROX_SLP_SH 4
-#define ISL29028_CONF_PROX_SLP_MASK (7 << ISL29028_CONF_PROX_SLP_SH)
-
-#define ISL29028_CONF_PROX_EN BIT(7)
-#define ISL29028_CONF_PROX_EN_MASK BIT(7)
-
-#define ISL29028_REG_INTERRUPT 0x02
-
-#define ISL29028_REG_PROX_DATA 0x08
-#define ISL29028_REG_ALSIR_L 0x09
-#define ISL29028_REG_ALSIR_U 0x0A
-
-#define ISL29028_REG_TEST1_MODE 0x0E
-#define ISL29028_REG_TEST2_MODE 0x0F
-
-#define ISL29028_NUM_REGS (ISL29028_REG_TEST2_MODE + 1)
-
-#define ISL29028_POWER_OFF_DELAY_MS 2000
-
-struct isl29028_prox_data {
- int sampling_int;
- int sampling_fract;
- int sleep_time;
-};
-
-static const struct isl29028_prox_data isl29028_prox_data[] = {
- { 1, 250000, 800 },
- { 2, 500000, 400 },
- { 5, 0, 200 },
- { 10, 0, 100 },
- { 13, 300000, 75 },
- { 20, 0, 50 },
- { 80, 0, 13 }, /*
- * Note: Data sheet lists 12.5 ms sleep time.
- * Round up a half millisecond for msleep().
- */
- { 100, 0, 0 }
-};
-
-enum isl29028_als_ir_mode {
- ISL29028_MODE_NONE = 0,
- ISL29028_MODE_ALS,
- ISL29028_MODE_IR,
-};
-
-struct isl29028_chip {
- struct mutex lock;
- struct regmap *regmap;
- int prox_sampling_int;
- int prox_sampling_frac;
- bool enable_prox;
- int lux_scale;
- enum isl29028_als_ir_mode als_ir_mode;
-};
-
-static int isl29028_find_prox_sleep_index(int sampling_int, int sampling_fract)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(isl29028_prox_data); ++i) {
- if (isl29028_prox_data[i].sampling_int == sampling_int &&
- isl29028_prox_data[i].sampling_fract == sampling_fract)
- return i;
- }
-
- return -EINVAL;
-}
-
-static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
- int sampling_int, int sampling_fract)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int sleep_index, ret;
-
- sleep_index = isl29028_find_prox_sleep_index(sampling_int,
- sampling_fract);
- if (sleep_index < 0)
- return sleep_index;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_PROX_SLP_MASK,
- sleep_index << ISL29028_CONF_PROX_SLP_SH);
-
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d setting the proximity sampling\n",
- __func__, ret);
- return ret;
- }
-
- chip->prox_sampling_int = sampling_int;
- chip->prox_sampling_frac = sampling_fract;
-
- return ret;
-}
-
-static int isl29028_enable_proximity(struct isl29028_chip *chip)
-{
- int prox_index, ret;
-
- ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling_int,
- chip->prox_sampling_frac);
- if (ret < 0)
- return ret;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_PROX_EN_MASK,
- ISL29028_CONF_PROX_EN);
- if (ret < 0)
- return ret;
-
- /* Wait for conversion to be complete for first sample */
- prox_index = isl29028_find_prox_sleep_index(chip->prox_sampling_int,
- chip->prox_sampling_frac);
- if (prox_index < 0)
- return prox_index;
-
- msleep(isl29028_prox_data[prox_index].sleep_time);
-
- return 0;
-}
-
-static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int val = (lux_scale == 2000) ? ISL29028_CONF_ALS_RANGE_HIGH_LUX :
- ISL29028_CONF_ALS_RANGE_LOW_LUX;
- int ret;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_RANGE_MASK, val);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d setting the ALS scale\n", __func__,
- ret);
- return ret;
- }
-
- chip->lux_scale = lux_scale;
-
- return ret;
-}
-
-static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
- enum isl29028_als_ir_mode mode)
-{
- int ret;
-
- if (chip->als_ir_mode == mode)
- return 0;
-
- ret = isl29028_set_als_scale(chip, chip->lux_scale);
- if (ret < 0)
- return ret;
-
- switch (mode) {
- case ISL29028_MODE_ALS:
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_IR_MODE_MASK,
- ISL29028_CONF_ALS_IR_MODE_ALS);
- if (ret < 0)
- return ret;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_RANGE_MASK,
- ISL29028_CONF_ALS_RANGE_HIGH_LUX);
- break;
- case ISL29028_MODE_IR:
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_IR_MODE_MASK,
- ISL29028_CONF_ALS_IR_MODE_IR);
- break;
- case ISL29028_MODE_NONE:
- return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_EN_MASK,
- ISL29028_CONF_ALS_DIS);
- }
-
- if (ret < 0)
- return ret;
-
- /* Enable the ALS/IR */
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_EN_MASK,
- ISL29028_CONF_ALS_EN);
- if (ret < 0)
- return ret;
-
- /* Need to wait for conversion time if ALS/IR mode enabled */
- msleep(ISL29028_CONV_TIME_MS);
-
- chip->als_ir_mode = mode;
-
- return 0;
-}
-
-static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- unsigned int lsb;
- unsigned int msb;
- int ret;
-
- ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_L, &lsb);
- if (ret < 0) {
- dev_err(dev,
- "%s(): Error %d reading register ALSIR_L\n",
- __func__, ret);
- return ret;
- }
-
- ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_U, &msb);
- if (ret < 0) {
- dev_err(dev,
- "%s(): Error %d reading register ALSIR_U\n",
- __func__, ret);
- return ret;
- }
-
- *als_ir = ((msb & 0xF) << 8) | (lsb & 0xFF);
-
- return 0;
-}
-
-static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- unsigned int data;
- int ret;
-
- if (!chip->enable_prox) {
- ret = isl29028_enable_proximity(chip);
- if (ret < 0)
- return ret;
-
- chip->enable_prox = true;
- }
-
- ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d reading register PROX_DATA\n",
- __func__, ret);
- return ret;
- }
-
- *prox = data;
-
- return 0;
-}
-
-static int isl29028_als_get(struct isl29028_chip *chip, int *als_data)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
- int als_ir_data;
-
- ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_ALS);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d enabling ALS mode\n", __func__,
- ret);
- return ret;
- }
-
- ret = isl29028_read_als_ir(chip, &als_ir_data);
- if (ret < 0)
- return ret;
-
- /*
- * convert als data count to lux.
- * if lux_scale = 125, lux = count * 0.031
- * if lux_scale = 2000, lux = count * 0.49
- */
- if (chip->lux_scale == 125)
- als_ir_data = (als_ir_data * 31) / 1000;
- else
- als_ir_data = (als_ir_data * 49) / 100;
-
- *als_data = als_ir_data;
-
- return 0;
-}
-
-static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_IR);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d enabling IR mode\n", __func__,
- ret);
- return ret;
- }
-
- return isl29028_read_als_ir(chip, ir_data);
-}
-
-static int isl29028_set_pm_runtime_busy(struct isl29028_chip *chip, bool on)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- if (on) {
- ret = pm_runtime_get_sync(dev);
- if (ret < 0)
- pm_runtime_put_noidle(dev);
- } else {
- pm_runtime_mark_last_busy(dev);
- ret = pm_runtime_put_autosuspend(dev);
- }
-
- return ret;
-}
-
-/* Channel IO */
-static int isl29028_write_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int val, int val2, long mask)
-{
- struct isl29028_chip *chip = iio_priv(indio_dev);
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- ret = isl29028_set_pm_runtime_busy(chip, true);
- if (ret < 0)
- return ret;
-
- mutex_lock(&chip->lock);
-
- ret = -EINVAL;
- switch (chan->type) {
- case IIO_PROXIMITY:
- if (mask != IIO_CHAN_INFO_SAMP_FREQ) {
- dev_err(dev,
- "%s(): proximity: Mask value 0x%08lx is not supported\n",
- __func__, mask);
- break;
- }
-
- if (val < 1 || val > 100) {
- dev_err(dev,
- "%s(): proximity: Sampling frequency %d is not in the range [1:100]\n",
- __func__, val);
- break;
- }
-
- ret = isl29028_set_proxim_sampling(chip, val, val2);
- break;
- case IIO_LIGHT:
- if (mask != IIO_CHAN_INFO_SCALE) {
- dev_err(dev,
- "%s(): light: Mask value 0x%08lx is not supported\n",
- __func__, mask);
- break;
- }
-
- if (val != 125 && val != 2000) {
- dev_err(dev,
- "%s(): light: Lux scale %d is not in the set {125, 2000}\n",
- __func__, val);
- break;
- }
-
- ret = isl29028_set_als_scale(chip, val);
- break;
- default:
- dev_err(dev, "%s(): Unsupported channel type %x\n",
- __func__, chan->type);
- break;
- }
-
- mutex_unlock(&chip->lock);
-
- if (ret < 0)
- return ret;
-
- ret = isl29028_set_pm_runtime_busy(chip, false);
- if (ret < 0)
- return ret;
-
- return ret;
-}
-
-static int isl29028_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val, int *val2, long mask)
-{
- struct isl29028_chip *chip = iio_priv(indio_dev);
- struct device *dev = regmap_get_device(chip->regmap);
- int ret, pm_ret;
-
- ret = isl29028_set_pm_runtime_busy(chip, true);
- if (ret < 0)
- return ret;
-
- mutex_lock(&chip->lock);
-
- ret = -EINVAL;
- switch (mask) {
- case IIO_CHAN_INFO_RAW:
- case IIO_CHAN_INFO_PROCESSED:
- switch (chan->type) {
- case IIO_LIGHT:
- ret = isl29028_als_get(chip, val);
- break;
- case IIO_INTENSITY:
- ret = isl29028_ir_get(chip, val);
- break;
- case IIO_PROXIMITY:
- ret = isl29028_read_proxim(chip, val);
- break;
- default:
- break;
- }
-
- if (ret < 0)
- break;
-
- ret = IIO_VAL_INT;
- break;
- case IIO_CHAN_INFO_SAMP_FREQ:
- if (chan->type != IIO_PROXIMITY)
- break;
-
- *val = chip->prox_sampling_int;
- *val2 = chip->prox_sampling_frac;
- ret = IIO_VAL_INT;
- break;
- case IIO_CHAN_INFO_SCALE:
- if (chan->type != IIO_LIGHT)
- break;
- *val = chip->lux_scale;
- ret = IIO_VAL_INT;
- break;
- default:
- dev_err(dev, "%s(): mask value 0x%08lx is not supported\n",
- __func__, mask);
- break;
- }
-
- mutex_unlock(&chip->lock);
-
- if (ret < 0)
- return ret;
-
- /**
- * Preserve the ret variable if the call to
- * isl29028_set_pm_runtime_busy() is successful so the reading
- * (if applicable) is returned to user space.
- */
- pm_ret = isl29028_set_pm_runtime_busy(chip, false);
- if (pm_ret < 0)
- return pm_ret;
-
- return ret;
-}
-
-static IIO_CONST_ATTR(in_proximity_sampling_frequency_available,
- "1.25 2.5 5 10 13.3 20 80 100");
-static IIO_CONST_ATTR(in_illuminance_scale_available, "125 2000");
-
-#define ISL29028_CONST_ATTR(name) (&iio_const_attr_##name.dev_attr.attr)
-static struct attribute *isl29028_attributes[] = {
- ISL29028_CONST_ATTR(in_proximity_sampling_frequency_available),
- ISL29028_CONST_ATTR(in_illuminance_scale_available),
- NULL,
-};
-
-static const struct attribute_group isl29108_group = {
- .attrs = isl29028_attributes,
-};
-
-static const struct iio_chan_spec isl29028_channels[] = {
- {
- .type = IIO_LIGHT,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
- BIT(IIO_CHAN_INFO_SCALE),
- }, {
- .type = IIO_INTENSITY,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- }, {
- .type = IIO_PROXIMITY,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SAMP_FREQ),
- }
-};
-
-static const struct iio_info isl29028_info = {
- .attrs = &isl29108_group,
- .driver_module = THIS_MODULE,
- .read_raw = isl29028_read_raw,
- .write_raw = isl29028_write_raw,
-};
-
-static int isl29028_clear_configure_reg(struct isl29028_chip *chip)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- ret = regmap_write(chip->regmap, ISL29028_REG_CONFIGURE, 0x0);
- if (ret < 0)
- dev_err(dev, "%s(): Error %d clearing the CONFIGURE register\n",
- __func__, ret);
-
- chip->als_ir_mode = ISL29028_MODE_NONE;
- chip->enable_prox = false;
-
- return ret;
-}
-
-static bool isl29028_is_volatile_reg(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case ISL29028_REG_INTERRUPT:
- case ISL29028_REG_PROX_DATA:
- case ISL29028_REG_ALSIR_L:
- case ISL29028_REG_ALSIR_U:
- return true;
- default:
- return false;
- }
-}
-
-static const struct regmap_config isl29028_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
- .volatile_reg = isl29028_is_volatile_reg,
- .max_register = ISL29028_NUM_REGS - 1,
- .num_reg_defaults_raw = ISL29028_NUM_REGS,
- .cache_type = REGCACHE_RBTREE,
-};
-
-static int isl29028_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct isl29028_chip *chip;
- struct iio_dev *indio_dev;
- int ret;
-
- indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
- if (!indio_dev)
- return -ENOMEM;
-
- chip = iio_priv(indio_dev);
-
- i2c_set_clientdata(client, indio_dev);
- mutex_init(&chip->lock);
-
- chip->regmap = devm_regmap_init_i2c(client, &isl29028_regmap_config);
- if (IS_ERR(chip->regmap)) {
- ret = PTR_ERR(chip->regmap);
- dev_err(&client->dev, "%s: Error %d initializing regmap\n",
- __func__, ret);
- return ret;
- }
-
- chip->enable_prox = false;
- chip->prox_sampling_int = 20;
- chip->prox_sampling_frac = 0;
- chip->lux_scale = 2000;
-
- ret = regmap_write(chip->regmap, ISL29028_REG_TEST1_MODE, 0x0);
- if (ret < 0) {
- dev_err(&client->dev,
- "%s(): Error %d writing to TEST1_MODE register\n",
- __func__, ret);
- return ret;
- }
-
- ret = regmap_write(chip->regmap, ISL29028_REG_TEST2_MODE, 0x0);
- if (ret < 0) {
- dev_err(&client->dev,
- "%s(): Error %d writing to TEST2_MODE register\n",
- __func__, ret);
- return ret;
- }
-
- ret = isl29028_clear_configure_reg(chip);
- if (ret < 0)
- return ret;
-
- indio_dev->info = &isl29028_info;
- indio_dev->channels = isl29028_channels;
- indio_dev->num_channels = ARRAY_SIZE(isl29028_channels);
- indio_dev->name = id->name;
- indio_dev->dev.parent = &client->dev;
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- pm_runtime_enable(&client->dev);
- pm_runtime_set_autosuspend_delay(&client->dev,
- ISL29028_POWER_OFF_DELAY_MS);
- pm_runtime_use_autosuspend(&client->dev);
-
- ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev);
- if (ret < 0) {
- dev_err(&client->dev,
- "%s(): iio registration failed with error %d\n",
- __func__, ret);
- return ret;
- }
-
- return 0;
-}
-
-static int isl29028_remove(struct i2c_client *client)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
- struct isl29028_chip *chip = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
-
- pm_runtime_disable(&client->dev);
- pm_runtime_set_suspended(&client->dev);
- pm_runtime_put_noidle(&client->dev);
-
- return isl29028_clear_configure_reg(chip);
-}
-
-static int __maybe_unused isl29028_suspend(struct device *dev)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
- struct isl29028_chip *chip = iio_priv(indio_dev);
- int ret;
-
- mutex_lock(&chip->lock);
-
- ret = isl29028_clear_configure_reg(chip);
-
- mutex_unlock(&chip->lock);
-
- return ret;
-}
-
-static int __maybe_unused isl29028_resume(struct device *dev)
-{
- /**
- * The specific component (ALS/IR or proximity) will enable itself as
- * needed the next time that the user requests a reading. This is done
- * above in isl29028_set_als_ir_mode() and isl29028_enable_proximity().
- */
- return 0;
-}
-
-static const struct dev_pm_ops isl29028_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
- SET_RUNTIME_PM_OPS(isl29028_suspend, isl29028_resume, NULL)
-};
-
-static const struct i2c_device_id isl29028_id[] = {
- {"isl29028", 0},
- {}
-};
-MODULE_DEVICE_TABLE(i2c, isl29028_id);
-
-static const struct of_device_id isl29028_of_match[] = {
- { .compatible = "isl,isl29028", }, /* for backward compat., don't use */
- { .compatible = "isil,isl29028", },
- { },
-};
-MODULE_DEVICE_TABLE(of, isl29028_of_match);
-
-static struct i2c_driver isl29028_driver = {
- .driver = {
- .name = "isl29028",
- .pm = &isl29028_pm_ops,
- .of_match_table = isl29028_of_match,
- },
- .probe = isl29028_probe,
- .remove = isl29028_remove,
- .id_table = isl29028_id,
-};
-
-module_i2c_driver(isl29028_driver);
-
-MODULE_DESCRIPTION("ISL29028 Ambient Light and Proximity Sensor driver");
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff