#define CH0_COMPENSATION 0x55
-#define PROX_TH_CH0 0x04 /* proximity threshold = 0.5 cm */
-#define PROX_TH_CH1 0x01 /* proximity threshold = 2 cm */
-#define PROX_TH_CH2 0x01 /* proximity threshold = 2 cm */
+#define PROX_TH_CH0 0x03
+#define PROX_TH_CH1 0x03
+#define PROX_TH_CH2 0x03
#define DISABLE_DYCAL 0x00
-#define CH0_ATI_TH 0x17
-#define CH1_ATI_TH 0x17
-#define CH2_ATI_TH 0x19
+#define CH0_ATI_TH 0xCC
+#define CH1_ATI_TH 0x40
+#define CH2_ATI_TH 0x40
#define EVENT_PROX_ONLY 0x01
#define ATI_ENABLED_MASK 0x80
+#define IQS253_RESET BIT(5)
+
+#define ATI 0xAF
+
#define NUM_REG 17
struct iqs253_chip {
u32 value;
struct regulator *vddhi;
u32 using_regulator;
-#if defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
- struct lightsensor_spec *ls_spec;
-#endif
- struct workqueue_struct *wq;
- struct delayed_work dw;
-#if !defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
+
struct workqueue_struct *sar_wq;
struct delayed_work sar_dw;
-#endif
- struct input_dev *idev;
- u32 stylus_inserted;
};
enum mode {
MODE_NONE = -1,
- NORMAL_MODE,
- STYLUS_MODE,
INIT_MODE,
FORCE_ATI_MODE,
POST_INIT_MODE,
u8 val;
};
-struct reg_val_pair reg_val_map[NUM_MODE][NUM_REG] = {
- {
- { COMP0, CH0_COMPENSATION},
- { CH0_ATI_BASE, CH0_ATI_TH},
- { CH1_ATI_BASE, CH1_ATI_TH},
- { CH2_ATI_BASE, CH2_ATI_TH},
+struct reg_val_pair reg_val_map_iqs253[NUM_MODE][NUM_REG] = {
+ { /* init settings */
+ { ACTIVE_CHAN, PROXIMITY_ONLY},
{ CH0_PTH, PROX_TH_CH0},
{ CH1_PTH, PROX_TH_CH1},
- { PROX_SETTINGS0, PROX_SETTING_NORMAL},
- { ACTIVE_CHAN, PROXIMITY_ONLY | STYLUS_ONLY},
- { DYCAL_CHANS, DISABLE_DYCAL},
- { EVENT_MODE_MASK, EVENT_PROX_ONLY}
- },
- {
- { COMP0, CH0_COMPENSATION},
- { CH0_ATI_BASE, CH0_ATI_TH},
+ { CH2_PTH, PROX_TH_CH2},
+ { TARGET, 0xE6},
{ CH1_ATI_BASE, CH1_ATI_TH},
{ CH2_ATI_BASE, CH2_ATI_TH},
- { CH2_PTH, PROX_TH_CH2},
- { PROX_SETTINGS0, PROX_SETTING_STYLUS},
- { ACTIVE_CHAN, STYLUS_ONLY},
- { DYCAL_CHANS, DISABLE_DYCAL},
- { EVENT_MODE_MASK, EVENT_PROX_ONLY}
- },
- { /* init settings */
- { PROX_SETTINGS2, ACF_DISABLE | EVENT_MODE_DISABLE_MASK},
- { ACTIVE_CHAN, PROXIMITY_ONLY},
- { PROX_SETTINGS0, AUTO_ATI_DISABLE},
- { CH0_PTH, 0x04},
- { CH1_PTH, 0x04},
- { CH2_PTH, 0x04},
- { TARGET, 0x20},
+ { PROX_SETTINGS3, 0x05},
},
{ /* force on ATI */
- { PROX_SETTINGS0, 0x50}, /* enable ATI and force auto ATI */
+ { PROX_SETTINGS0, 0x57}, /* enable ATI and force auto ATI */
+ { ATI, 0x0}, /* wait for ATI to finish */
},
{
- { PROX_SETTINGS0, AUTO_ATI_DISABLE}, /* turn off ATI*/
- { PROX_SETTINGS2, ACF_DISABLE |
- EVENT_MODE_DISABLE_MASK | LTA_HALT_11},
- { DYCAL_CHANS, DISABLE_DYCAL},
- /* turning on ATI is recommended but it has side effects */
+ { PROX_SETTINGS1, 0x40},
+ { PROX_SETTINGS2, 0x57},
},
};
-static void iqs253_i2c_hand_shake(struct iqs253_chip *iqs253_chip)
+static void iqs253_detect_comwindow(struct iqs253_chip *chip)
+{
+ int gpio_count = 500;
+ while (gpio_get_value(chip->rdy_gpio) && gpio_count--)
+ usleep_range(100, 110);
+}
+
+static int iqs253_i2c_firsthand_shake(struct iqs253_chip *iqs253_chip)
{
int retry_count = 10;
+ int ret = 0;
+
+ pr_debug("%s :<-- HANDSHAKE START -->\n", __func__);
+
do {
gpio_direction_output(iqs253_chip->rdy_gpio, 0);
- usleep_range(10 * 1000, 10 * 1000);
+ usleep_range(12 * 1000, 12 * 1000);
/* put to tristate */
gpio_direction_input(iqs253_chip->rdy_gpio);
+ iqs253_detect_comwindow(iqs253_chip);
} while (gpio_get_value(iqs253_chip->rdy_gpio) && retry_count--);
+
+ /* got the window */
+ ret = i2c_smbus_write_byte_data(iqs253_chip->client,
+ PROX_SETTINGS2 , 0x17);
+ if (ret)
+ return ret;
+ usleep_range(1000, 1100);
+
+ pr_debug("%s :<-- HANDSHAKE DONE -->\n", __func__);
+ return 0;
}
static int iqs253_i2c_read_byte(struct iqs253_chip *chip, int reg)
{
- int ret = 0, retry_count = 10;
- do {
- iqs253_i2c_hand_shake(chip);
- ret = i2c_smbus_read_byte_data(chip->client, reg);
- } while (ret && retry_count--);
+ int ret = 0;
+ iqs253_detect_comwindow(chip);
+ ret = i2c_smbus_read_byte_data(chip->client, reg);
+ usleep_range(1000, 1100);
return ret;
}
static int iqs253_i2c_write_byte(struct iqs253_chip *chip, int reg, int val)
{
- int ret = 0, retry_count = 10;
- do {
- iqs253_i2c_hand_shake(chip);
- ret = i2c_smbus_write_byte_data(chip->client, reg, val);
- } while (ret && retry_count--);
+ int ret = 0;
+
+ iqs253_detect_comwindow(chip);
+ ret = i2c_smbus_write_byte_data(chip->client, reg, val);
+ usleep_range(1000, 1100);
return ret;
}
-/* must call holding lock */
-static int iqs253_set(struct iqs253_chip *iqs253_chip, int mode)
+static void iqs253_wait_for_ati_finish(struct iqs253_chip *iqs253_chip)
{
- int ret = 0, i;
- struct reg_val_pair *reg_val_pair_map;
-
- if ((mode != NORMAL_MODE) && (mode != STYLUS_MODE))
- return -EINVAL;
-
- reg_val_pair_map = reg_val_map[INIT_MODE];
-
- for (i = 0; i < NUM_REG; i++) {
- if (!reg_val_pair_map[i].reg && !reg_val_pair_map[i].val)
- continue;
-
- ret = iqs253_i2c_write_byte(iqs253_chip,
- reg_val_pair_map[i].reg,
- reg_val_pair_map[i].val);
- if (ret) {
- dev_err(&iqs253_chip->client->dev,
- "iqs253 write val:%x to reg:%x failed\n",
- reg_val_pair_map[i].val,
- reg_val_pair_map[i].reg);
- return ret;
- }
- }
-
- reg_val_pair_map = reg_val_map[FORCE_ATI_MODE];
-
- for (i = 0; i < NUM_REG; i++) {
- if (!reg_val_pair_map[i].reg && !reg_val_pair_map[i].val)
- continue;
-
- ret = iqs253_i2c_write_byte(iqs253_chip,
- reg_val_pair_map[i].reg,
- reg_val_pair_map[i].val);
- if (ret) {
- dev_err(&iqs253_chip->client->dev,
- "iqs253 write val:%x to reg:%x failed\n",
- reg_val_pair_map[i].val,
- reg_val_pair_map[i].reg);
- return ret;
- }
- }
- /* wait for ATI to finish */
+ int ret;
do {
usleep_range(10 * 1000, 10 * 1000);
ret = iqs253_i2c_read_byte(iqs253_chip, SYSFLAGS);
} while (ret & ATI_IN_PROGRESS);
-
- reg_val_pair_map = reg_val_map[POST_INIT_MODE];
-
- for (i = 0; i < NUM_REG; i++) {
- if (!reg_val_pair_map[i].reg && !reg_val_pair_map[i].val)
- continue;
-
- ret = iqs253_i2c_write_byte(iqs253_chip,
- reg_val_pair_map[i].reg,
- reg_val_pair_map[i].val);
- if (ret) {
- dev_err(&iqs253_chip->client->dev,
- "iqs253 write val:%x to reg:%x failed\n",
- reg_val_pair_map[i].val,
- reg_val_pair_map[i].reg);
- return ret;
- }
- }
- iqs253_chip->mode = mode;
- return 0;
-}
-
-#if defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
-/* device's registration with iio to facilitate user operations */
-static ssize_t iqs253_chan_regulator_enable(
- struct iio_dev *indio_dev, uintptr_t private,
- struct iio_chan_spec const *chan,
- const char *buf, size_t len)
-{
- int ret = 0;
- u8 enable;
- struct iqs253_chip *chip = iio_priv(indio_dev);
-
- if (chip->mode == STYLUS_MODE)
- return -EINVAL;
-
- if (kstrtou8(buf, 10, &enable))
- return -EINVAL;
-
- if ((enable != 0) && (enable != 1))
- return -EINVAL;
-
- if (chan->type != IIO_PROXIMITY)
- return -EINVAL;
-
- if (enable == chip->using_regulator)
- goto success;
-
- if (enable)
- ret = regulator_enable(chip->vddhi);
- else
- ret = regulator_disable(chip->vddhi);
-
- if (ret) {
- dev_err(&chip->client->dev,
- "idname:%s func:%s line:%d enable:%d regulator logic failed\n",
- chip->id->name, __func__, __LINE__, enable);
- goto fail;
- }
-
-success:
- chip->using_regulator = enable;
- chip->mode = MODE_NONE;
-fail:
- return ret ? ret : 1;
}
-static ssize_t iqs253_chan_normal_mode_enable(
- struct iio_dev *indio_dev, uintptr_t private,
- struct iio_chan_spec const *chan,
- const char *buf, size_t len)
-{
- int ret = 0;
- u8 enable;
- struct iqs253_chip *chip = iio_priv(indio_dev);
-
- if (chip->mode == STYLUS_MODE)
- return -EINVAL;
-
- if (kstrtou8(buf, 10, &enable))
- return -EINVAL;
-
- if ((enable != 0) && (enable != 1))
- return -EINVAL;
-
- if (chan->type != IIO_PROXIMITY)
- return -EINVAL;
-
- if (!chip->using_regulator)
- return -EINVAL;
-
- if (enable)
- ret = iqs253_set(chip, NORMAL_MODE);
- else
- chip->mode = MODE_NONE;
-
- return ret ? ret : 1;
-}
-
-/*
- * chan_regulator_enable is used to enable regulators used by
- * particular channel.
- * chan_enable actually configures various registers to activate
- * a particular channel.
- */
-static const struct iio_chan_spec_ext_info iqs253_ext_info[] = {
- {
- .name = "regulator_enable",
- .write = iqs253_chan_regulator_enable,
- },
- {
- .name = "enable",
- .write = iqs253_chan_normal_mode_enable,
- },
- {
- },
-};
-
-static const struct iio_chan_spec iqs253_channels[] = {
- {
- .type = IIO_PROXIMITY,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- .ext_info = iqs253_ext_info,
- },
-};
-
-static int iqs253_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan, int *val, int *val2, long mask)
+/* must call holding lock */
+static int iqs253_set(struct iqs253_chip *iqs253_chip)
{
- struct iqs253_chip *chip = iio_priv(indio_dev);
- int ret;
-
- if (chip->mode != NORMAL_MODE)
- return -EINVAL;
-
- if (chan->type != IIO_PROXIMITY)
- return -EINVAL;
-
- ret = iqs253_i2c_read_byte(chip, PROX_STATUS);
- chip->value = -1;
- if (ret >= 0) {
- if ((ret >= 0) && (chip->mode == NORMAL_MODE)) {
- ret = ret & PROXIMITY_ONLY;
- /*
- * if both channel detect proximity => distance = 0;
- * if one channel detects proximity => distance = 1;
- * if no channel detects proximity => distance = 2;
- */
- chip->value = (ret == (PROX_CH1 | PROX_CH2)) ? 0 :
- ret ? 1 : 2;
+ int ret = 0, i, j;
+ struct reg_val_pair *reg_val_pair_map;
+ int modes[NUM_MODE] = {INIT_MODE, FORCE_ATI_MODE, POST_INIT_MODE};
+
+ for (j = 0; j < NUM_MODE; j++) {
+
+ if (modes[j] == MODE_NONE)
+ break;
+
+ reg_val_pair_map = reg_val_map_iqs253[modes[j]];
+
+ for (i = 0; i < NUM_REG; i++) {
+ if (!reg_val_pair_map[i].reg &&
+ !reg_val_pair_map[i].val)
+ continue;
+
+ if (reg_val_pair_map[i].reg == ATI) {
+ iqs253_wait_for_ati_finish(iqs253_chip);
+ continue;
+ }
+
+ ret = iqs253_i2c_write_byte(iqs253_chip,
+ reg_val_pair_map[i].reg,
+ reg_val_pair_map[i].val);
+ if (ret) {
+ dev_err(&iqs253_chip->client->dev,
+ "iqs253 write val:%x to reg:%x fail\n",
+ reg_val_pair_map[i].val,
+ reg_val_pair_map[i].reg);
+ return ret;
+ }
}
}
- if (chip->value == -1)
- return -EINVAL;
-
- *val = chip->value; /* cm */
-
- /* provide input to SAR */
- if (chip->value/2)
- gpio_direction_output(chip->sar_gpio, 1);
- else
- gpio_direction_output(chip->sar_gpio, 0);
-
- return IIO_VAL_INT;
+ return 0;
}
-static IIO_CONST_ATTR(vendor, "Azoteq");
-static IIO_CONST_ATTR(in_proximity_integration_time,
- "16000000"); /* 16 msec */
-static IIO_CONST_ATTR(in_proximity_max_range, "2"); /* cm */
-static IIO_CONST_ATTR(in_proximity_power_consumed, "1.67"); /* mA */
-
-static struct attribute *iqs253_attrs[] = {
- &iio_const_attr_vendor.dev_attr.attr,
- &iio_const_attr_in_proximity_integration_time.dev_attr.attr,
- &iio_const_attr_in_proximity_max_range.dev_attr.attr,
- &iio_const_attr_in_proximity_power_consumed.dev_attr.attr,
- NULL
-};
-
-static struct attribute_group iqs253_attr_group = {
- .name = "iqs253",
- .attrs = iqs253_attrs
-};
-
-static struct iio_info iqs253_iio_info = {
- .driver_module = THIS_MODULE,
- .read_raw = &iqs253_read_raw,
- .attrs = &iqs253_attr_group,
-};
-
-#else
static void iqs253_sar_proximity_detect_work(struct work_struct *ws)
{
int ret;
chip->using_regulator = true;
}
- if (chip->mode != NORMAL_MODE) {
- ret = iqs253_set(chip, NORMAL_MODE);
+ ret = iqs253_i2c_read_byte(chip, PROX_STATUS);
+ if (ret < 0) {
+ pr_err(
+ "iqs253: read proximity status fails in func:%s at line:%d\n",
+ __func__, __LINE__);
+ return;
+ }
+
+ if (ret & IQS253_RESET) {
+ ret = iqs253_set(chip);
if (ret)
goto finish;
}
ret = iqs253_i2c_read_byte(chip, PROX_STATUS);
chip->value = -1;
if (ret >= 0) {
- if ((ret >= 0) && (chip->mode == NORMAL_MODE)) {
- ret = ret & PROXIMITY_ONLY;
- /*
- * if both channel detect proximity => distance = 0;
- * if one channel detects proximity => distance = 1;
- * if no channel detects proximity => distance = 2;
- */
- chip->value = (ret == (PROX_CH1 | PROX_CH2)) ? 0 :
- ret ? 1 : 2;
- }
+ ret = ret & PROXIMITY_ONLY;
+ /*
+ * if both channel detect proximity => distance = 0;
+ * if one channel detects proximity => distance = 1;
+ * if no channel detects proximity => distance = 2;
+ */
+ chip->value = (ret == (PROX_CH1 | PROX_CH2)) ? 0 :
+ ret ? 1 : 2;
}
if (chip->value == -1)
goto finish;
queue_delayed_work(chip->sar_wq, &chip->sar_dw, msecs_to_jiffies(1000));
}
-#endif /* CONFIG_SENSORS_IQS253_AS_PROXIMITY */
-
-#ifdef CONFIG_PM_SLEEP
-static int iqs253_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
- struct iqs253_chip *chip = iio_priv(indio_dev);
- int ret = 0;
-
- if (!chip->using_regulator)
- ret = regulator_enable(chip->vddhi);
-
- if (ret) {
- dev_err(&chip->client->dev,
- "idname:%s func:%s line:%d regulator enable fails\n",
- chip->id->name, __func__, __LINE__);
- return ret;
- }
-
- ret = iqs253_set(chip, STYLUS_MODE);
- if (ret) {
- dev_err(&chip->client->dev,
- "idname:%s func:%s line:%d can not enable stylus mode\n",
- chip->id->name, __func__, __LINE__);
- return ret;
- }
- return tegra_pm_irq_set_wake(tegra_gpio_to_wake(chip->wake_gpio), 1);
-}
-
-static int iqs253_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
- struct iqs253_chip *chip = iio_priv(indio_dev);
- int ret = 0;
-
- if (chip->using_regulator) {
- ret = iqs253_set(chip, NORMAL_MODE);
- } else {
- chip->mode = MODE_NONE;
- ret = regulator_disable(chip->vddhi);
- }
-
- if (ret) {
- dev_err(&chip->client->dev,
- "idname:%s func:%s line:%d regulator enable fails\n",
- chip->id->name, __func__, __LINE__);
- return ret;
- }
-
- return ret;
-}
-
-static SIMPLE_DEV_PM_OPS(iqs253_pm_ops, iqs253_suspend, iqs253_resume);
-#define IQS253_PM_OPS (&iqs253_pm_ops)
-#else
-#define IQS253_PM_OPS NULL
-#endif
-
-static void iqs253_stylus_detect_work(struct work_struct *ws)
-{
- int ret;
- struct iqs253_chip *chip;
-
- chip = container_of(ws, struct iqs253_chip, dw.work);
-
- if (!chip->using_regulator) {
- ret = regulator_enable(chip->vddhi);
- if (ret)
- goto finish;
- chip->using_regulator = true;
- }
-
- if (chip->mode != NORMAL_MODE) {
- ret = iqs253_set(chip, NORMAL_MODE);
- if (ret)
- goto finish;
-
- ret = iqs253_i2c_read_byte(chip, PROX_STATUS);
- chip->stylus_inserted = (ret & STYLUS_ONLY);
- input_report_switch(chip->idev, SW_TABLET_MODE,
- !chip->stylus_inserted);
- input_sync(chip->idev);
- }
-
- ret = iqs253_i2c_read_byte(chip, PROX_STATUS);
- chip->value = -1;
- if (ret >= 0) {
- ret &= STYLUS_ONLY;
- if (ret && !chip->stylus_inserted) {
- chip->stylus_inserted = true;
- input_report_switch(chip->idev, SW_TABLET_MODE, false);
- input_sync(chip->idev);
- } else if (!ret && chip->stylus_inserted) {
- chip->stylus_inserted = false;
- input_report_switch(chip->idev, SW_TABLET_MODE, true);
- input_sync(chip->idev);
- }
- }
-
-finish:
- queue_delayed_work(chip->wq, &chip->dw, msecs_to_jiffies(2000));
-}
-
-static struct input_dev *iqs253_stylus_input_init(struct iqs253_chip *chip)
-{
- int ret;
- struct input_dev *idev = input_allocate_device();
- if (!idev)
- return NULL;
-
- idev->name = "stylus_detect";
- set_bit(EV_SW, idev->evbit);
- input_set_capability(idev, EV_SW, SW_TABLET_MODE);
- ret = input_register_device(idev);
- if (ret) {
- input_free_device(idev);
- return ERR_PTR(ret);
- }
-
- chip->wq = create_freezable_workqueue("iqs253");
- if (!chip->wq) {
- dev_err(&chip->client->dev, "unable to create work queue\n");
- input_unregister_device(idev);
- input_free_device(idev);
- return ERR_PTR(-ENOMEM);
- }
-
- INIT_DELAYED_WORK(&chip->dw, iqs253_stylus_detect_work);
-
- queue_delayed_work(chip->wq, &chip->dw, 0);
-
- return idev;
-}
-
static int iqs253_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret;
struct iqs253_chip *iqs253_chip;
struct iio_dev *indio_dev;
- struct input_dev *idev;
int rdy_gpio = -1, wake_gpio = -1, sar_gpio = -1;
- struct property *stylus_detect = NULL;
rdy_gpio = of_get_named_gpio(client->dev.of_node, "rdy-gpio", 0);
if (rdy_gpio == -EPROBE_DEFER)
i2c_set_clientdata(client, indio_dev);
iqs253_chip = iio_priv(indio_dev);
-#if defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
- iqs253_chip->ls_spec = of_get_ls_spec(&client->dev);
- if (!iqs253_chip->ls_spec) {
- dev_err(&client->dev,
- "devname:%s func:%s line:%d invalid meta data\n",
- id->name, __func__, __LINE__);
- return -ENODATA;
- }
-
- fill_ls_attrs(iqs253_chip->ls_spec, iqs253_attrs);
- indio_dev->channels = iqs253_channels;
- indio_dev->info = &iqs253_iio_info;
- indio_dev->num_channels = 1;
- indio_dev->name = id->name;
- indio_dev->dev.parent = &client->dev;
- indio_dev->modes = INDIO_DIRECT_MODE;
- ret = iio_device_register(indio_dev);
- if (ret) {
- dev_err(&client->dev,
- "devname:%s func:%s line:%d iio_device_register fail\n",
- id->name, __func__, __LINE__);
- goto err_iio_register;
- }
-#endif
-
iqs253_chip->client = client;
iqs253_chip->id = id;
iqs253_chip->mode = MODE_NONE;
ret = regulator_enable(iqs253_chip->vddhi);
if (ret) {
- dev_err(&client->dev,
+ dev_err(&client->dev,
"devname:%s func:%s regulator enable failed\n",
id->name, __func__);
goto err_gpio_request;
}
- ret = iqs253_i2c_read_byte(iqs253_chip, 0);
- if (ret != IQS253_PROD_ID) {
- dev_err(&client->dev,
- "devname:%s func:%s device not present\n",
+ ret = iqs253_i2c_firsthand_shake(iqs253_chip);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "devname:%s func:%s first i2c handshake failed\n",
id->name, __func__);
goto err_gpio_request;
-
}
- ret = regulator_disable(iqs253_chip->vddhi);
- if (ret) {
- dev_err(&client->dev,
- "devname:%s func:%s regulator disable failed\n",
+ ret = iqs253_i2c_read_byte(iqs253_chip, 0);
+ if (ret != IQS253_PROD_ID) {
+ dev_err(&client->dev,
+ "devname:%s func:%s device not present\n",
id->name, __func__);
goto err_gpio_request;
}
- stylus_detect = of_find_property(client->dev.of_node,
- "stylus-detect", NULL);
- if (!stylus_detect)
- goto finish;
-
- idev = iqs253_stylus_input_init(iqs253_chip);
- if (IS_ERR_OR_NULL(idev))
- goto err_gpio_request;
- iqs253_chip->idev = idev;
-
-finish:
-
-#if !defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
iqs253_chip->sar_wq = create_freezable_workqueue("iqs253_sar");
if (!iqs253_chip->sar_wq) {
dev_err(&iqs253_chip->client->dev, "unable to create work queue\n");
iqs253_sar_proximity_detect_work);
queue_delayed_work(iqs253_chip->sar_wq, &iqs253_chip->sar_dw, 0);
-#endif
dev_info(&client->dev, "devname:%s func:%s line:%d probe success\n",
id->name, __func__, __LINE__);
return 0;
err_gpio_request:
-#if !defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
if (iqs253_chip->sar_wq)
destroy_workqueue(iqs253_chip->sar_wq);
-#endif
err_regulator_get:
-#if defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
- iio_device_unregister(indio_dev);
-err_iio_register:
-#endif
iio_device_free(indio_dev);
dev_err(&client->dev, "devname:%s func:%s line:%d probe failed\n",
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct iqs253_chip *chip = iio_priv(indio_dev);
gpio_free(chip->rdy_gpio);
-#if !defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
+
if (chip->sar_wq)
destroy_workqueue(chip->sar_wq);
-#endif
- if (chip->wq)
- destroy_workqueue(chip->wq);
- if (chip->idev) {
- input_unregister_device(chip->idev);
- input_free_device(chip->idev);
- }
-#if defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
- iio_device_unregister(indio_dev);
-#endif
iio_device_free(indio_dev);
return 0;
}
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct iqs253_chip *chip = iio_priv(indio_dev);
-#if !defined(CONFIG_SENSORS_IQS253_AS_PROXIMITY)
if (chip->sar_wq)
cancel_delayed_work_sync(&chip->sar_dw);
-#endif
- if (chip->wq)
- cancel_delayed_work_sync(&chip->dw);
-
}
static const struct i2c_device_id iqs253_id[] = {
projects / sojka / nv-tegra / linux-3.10.git / commitdiff