Merge tag 'staging-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull IIO and staging fixes from Greg KH:
 "Here are a number of IIO and staging bugfixes for 4.7-rc4.

  Nothing huge, the normal amount of iio driver fixes, and some small
  staging driver bugfixes for some reported problems (2 are reverts of
  patches that went into 4.7-rc1).  All have been in linux-next with no
  reported issues"

* tag 'staging-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (24 commits)
  Revert "Staging: rtl8188eu: rtw_efuse: Use sizeof type *pointer instead of sizeof type."
  Revert "Staging: drivers: rtl8188eu: use sizeof(*ptr) instead of sizeof(struct)"
  staging: lustre: lnet: Don't access NULL NI on failure path
  iio: hudmidity: hdc100x: fix incorrect shifting and scaling
  iio: light apds9960: Add the missing dev.parent
  iio: Fix error handling in iio_trigger_attach_poll_func
  iio: st_sensors: Disable DRDY at init time
  iio: st_sensors: Init trigger before irq request
  iio: st_sensors: switch to a threaded interrupt
  iio: light: bh1780: assign a static name
  iio: bh1780: dereference the client properly
  iio: humidity: hdc100x: fix IIO_TEMP channel reporting
  iio:st_pressure: fix sampling gains (bring inline with ABI)
  iio: proximity: as3935: fix buffer stack trashing
  iio: proximity: as3935: remove triggered buffer processing
  iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output
  max44000: Remove scale from proximity
  iio: humidity: am2315: Remove a stray unlock
  iio: humidity: hdc100x: correct humidity integration time mask
  iio: pressure: bmp280: fix error message for wrong chip id
  ...

26 files changed, 237 insertions, 105 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935 b/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
index 6708c5e264aa..33e96f740639 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
+++ b/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
@@ -1,4 +1,4 @@
-What            /sys/bus/iio/devices/iio:deviceX/in_proximity_raw
+What            /sys/bus/iio/devices/iio:deviceX/in_proximity_input
 Date:           March 2014
 KernelVersion:  3.15
 Contact:        Matt Ranostay <mranostay@gmail.com>
diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c
index a1e642ee13d6..7fddc137e91e 100644
--- a/drivers/iio/accel/st_accel_buffer.c
+++ b/drivers/iio/accel/st_accel_buffer.c
@@ -91,7 +91,7 @@ static const struct iio_buffer_setup_ops st_accel_buffer_setup_ops = {
 
 int st_accel_allocate_ring(struct iio_dev *indio_dev)
 {
-        return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+        return iio_triggered_buffer_setup(indio_dev, NULL,
                 &st_sensors_trigger_handler, &st_accel_buffer_setup_ops);
 }
 
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index dc73f2d85e6d..4d95bfc4786c 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -741,6 +741,7 @@ static const struct iio_info accel_info = {
 static const struct iio_trigger_ops st_accel_trigger_ops = {
         .owner = THIS_MODULE,
         .set_trigger_state = ST_ACCEL_TRIGGER_SET_STATE,
+        .validate_device = st_sensors_validate_device,
 };
 #define ST_ACCEL_TRIGGER_OPS (&st_accel_trigger_ops)
 #else
diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index c55898543a47..f1693dbebb8a 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -57,31 +57,20 @@ irqreturn_t st_sensors_trigger_handler(int irq, void *p)
         struct iio_poll_func *pf = p;
         struct iio_dev *indio_dev = pf->indio_dev;
         struct st_sensor_data *sdata = iio_priv(indio_dev);
+        s64 timestamp;
 
-        /* If we have a status register, check if this IRQ came from us */
-        if (sdata->sensor_settings->drdy_irq.addr_stat_drdy) {
-                u8 status;
-
-                len = sdata->tf->read_byte(&sdata->tb, sdata->dev,
-                           sdata->sensor_settings->drdy_irq.addr_stat_drdy,
-                           &status);
-                if (len < 0)
-                        dev_err(sdata->dev, "could not read channel status\n");
-
-                /*
-                 * If this was not caused by any channels on this sensor,
-                 * return IRQ_NONE
-                 */
-                if (!(status & (u8)indio_dev->active_scan_mask[0]))
-                        return IRQ_NONE;
-        }
+        /* If we do timetamping here, do it before reading the values */
+        if (sdata->hw_irq_trigger)
+                timestamp = sdata->hw_timestamp;
+        else
+                timestamp = iio_get_time_ns();
 
         len = st_sensors_get_buffer_element(indio_dev, sdata->buffer_data);
         if (len < 0)
                 goto st_sensors_get_buffer_element_error;
 
         iio_push_to_buffers_with_timestamp(indio_dev, sdata->buffer_data,
-                pf->timestamp);
+                                           timestamp);
 
 st_sensors_get_buffer_element_error:
         iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index dffe00692169..9e59c90f6a8d 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -363,6 +363,11 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
         if (err < 0)
                 return err;
 
+        /* Disable DRDY, this might be still be enabled after reboot. */
+        err = st_sensors_set_dataready_irq(indio_dev, false);
+        if (err < 0)
+                return err;
+
         if (sdata->current_fullscale) {
                 err = st_sensors_set_fullscale(indio_dev,
                                                 sdata->current_fullscale->num);
@@ -424,6 +429,9 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
         else
                 drdy_mask = sdata->sensor_settings->drdy_irq.mask_int2;
 
+        /* Flag to the poll function that the hardware trigger is in use */
+        sdata->hw_irq_trigger = enable;
+
         /* Enable/Disable the interrupt generator for data ready. */
         err = st_sensors_write_data_with_mask(indio_dev,
                                         sdata->sensor_settings->drdy_irq.addr,
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index da72279fcf99..296e4ff19ae8 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -17,6 +17,73 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_sensors_core.h"
 
+/**
+ * st_sensors_irq_handler() - top half of the IRQ-based triggers
+ * @irq: irq number
+ * @p: private handler data
+ */
+irqreturn_t st_sensors_irq_handler(int irq, void *p)
+{
+        struct iio_trigger *trig = p;
+        struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+        struct st_sensor_data *sdata = iio_priv(indio_dev);
+
+        /* Get the time stamp as close in time as possible */
+        sdata->hw_timestamp = iio_get_time_ns();
+        return IRQ_WAKE_THREAD;
+}
+
+/**
+ * st_sensors_irq_thread() - bottom half of the IRQ-based triggers
+ * @irq: irq number
+ * @p: private handler data
+ */
+irqreturn_t st_sensors_irq_thread(int irq, void *p)
+{
+        struct iio_trigger *trig = p;
+        struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+        struct st_sensor_data *sdata = iio_priv(indio_dev);
+        int ret;
+
+        /*
+         * If this trigger is backed by a hardware interrupt and we have a
+         * status register, check if this IRQ came from us
+         */
+        if (sdata->sensor_settings->drdy_irq.addr_stat_drdy) {
+                u8 status;
+
+                ret = sdata->tf->read_byte(&sdata->tb, sdata->dev,
+                           sdata->sensor_settings->drdy_irq.addr_stat_drdy,
+                           &status);
+                if (ret < 0) {
+                        dev_err(sdata->dev, "could not read channel status\n");
+                        goto out_poll;
+                }
+                /*
+                 * the lower bits of .active_scan_mask[0] is directly mapped
+                 * to the channels on the sensor: either bit 0 for
+                 * one-dimensional sensors, or e.g. x,y,z for accelerometers,
+                 * gyroscopes or magnetometers. No sensor use more than 3
+                 * channels, so cut the other status bits here.
+                 */
+                status &= 0x07;
+
+                /*
+                 * If this was not caused by any channels on this sensor,
+                 * return IRQ_NONE
+                 */
+                if (!indio_dev->active_scan_mask)
+                        return IRQ_NONE;
+                if (!(status & (u8)indio_dev->active_scan_mask[0]))
+                        return IRQ_NONE;
+        }
+
+out_poll:
+        /* It's our IRQ: proceed to handle the register polling */
+        iio_trigger_poll_chained(p);
+        return IRQ_HANDLED;
+}
+
 int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
                                 const struct iio_trigger_ops *trigger_ops)
 {
@@ -30,6 +97,10 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
                 return -ENOMEM;
         }
 
+        iio_trigger_set_drvdata(sdata->trig, indio_dev);
+        sdata->trig->ops = trigger_ops;
+        sdata->trig->dev.parent = sdata->dev;
+
         irq = sdata->get_irq_data_ready(indio_dev);
         irq_trig = irqd_get_trigger_type(irq_get_irq_data(irq));
         /*
@@ -77,9 +148,12 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
             sdata->sensor_settings->drdy_irq.addr_stat_drdy)
                 irq_trig |= IRQF_SHARED;
 
-        err = request_threaded_irq(irq,
-                        iio_trigger_generic_data_rdy_poll,
-                        NULL,
+        /* Let's create an interrupt thread masking the hard IRQ here */
+        irq_trig |= IRQF_ONESHOT;
+
+        err = request_threaded_irq(sdata->get_irq_data_ready(indio_dev),
+                        st_sensors_irq_handler,
+                        st_sensors_irq_thread,
                         irq_trig,
                         sdata->trig->name,
                         sdata->trig);
@@ -88,10 +162,6 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
                 goto iio_trigger_free;
         }
 
-        iio_trigger_set_drvdata(sdata->trig, indio_dev);
-        sdata->trig->ops = trigger_ops;
-        sdata->trig->dev.parent = sdata->dev;
-
         err = iio_trigger_register(sdata->trig);
         if (err < 0) {
                 dev_err(&indio_dev->dev, "failed to register iio trigger.\n");
@@ -119,6 +189,18 @@ void st_sensors_deallocate_trigger(struct iio_dev *indio_dev)
 }
 EXPORT_SYMBOL(st_sensors_deallocate_trigger);
 
+int st_sensors_validate_device(struct iio_trigger *trig,
+                               struct iio_dev *indio_dev)
+{
+        struct iio_dev *indio = iio_trigger_get_drvdata(trig);
+
+        if (indio != indio_dev)
+                return -EINVAL;
+
+        return 0;
+}
+EXPORT_SYMBOL(st_sensors_validate_device);
+
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics ST-sensors trigger");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 948f600e7059..69bde5909854 100644
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -525,7 +525,7 @@ static int ad5592r_alloc_channels(struct ad5592r_state *st)
 
         device_for_each_child_node(st->dev, child) {
                 ret = fwnode_property_read_u32(child, "reg", &reg);
-                if (ret || reg > ARRAY_SIZE(st->channel_modes))
+                if (ret || reg >= ARRAY_SIZE(st->channel_modes))
                         continue;
 
                 ret = fwnode_property_read_u32(child, "adi,mode", &tmp);
diff --git a/drivers/iio/gyro/st_gyro_buffer.c b/drivers/iio/gyro/st_gyro_buffer.c
index d67b17b6a7aa..a5377044e42f 100644
--- a/drivers/iio/gyro/st_gyro_buffer.c
+++ b/drivers/iio/gyro/st_gyro_buffer.c
@@ -91,7 +91,7 @@ static const struct iio_buffer_setup_ops st_gyro_buffer_setup_ops = {
 
 int st_gyro_allocate_ring(struct iio_dev *indio_dev)
 {
-        return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+        return iio_triggered_buffer_setup(indio_dev, NULL,
                 &st_sensors_trigger_handler, &st_gyro_buffer_setup_ops);
 }
 
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index 52a3c87c375c..a8012955a1f6 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -409,6 +409,7 @@ static const struct iio_info gyro_info = {
 static const struct iio_trigger_ops st_gyro_trigger_ops = {
         .owner = THIS_MODULE,
         .set_trigger_state = ST_GYRO_TRIGGER_SET_STATE,
+        .validate_device = st_sensors_validate_device,
 };
 #define ST_GYRO_TRIGGER_OPS (&st_gyro_trigger_ops)
 #else
diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c
index 3be6d209a159..11535911a5c6 100644
--- a/drivers/iio/humidity/am2315.c
+++ b/drivers/iio/humidity/am2315.c
@@ -165,10 +165,8 @@ static irqreturn_t am2315_trigger_handler(int irq, void *p)
         struct am2315_sensor_data sensor_data;
 
         ret = am2315_read_data(data, &sensor_data);
-        if (ret < 0) {
-                mutex_unlock(&data->lock);
+        if (ret < 0)
                 goto err;
-        }
 
         mutex_lock(&data->lock);
         if (*(indio_dev->active_scan_mask) == AM2315_ALL_CHANNEL_MASK) {
diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c
index fa4767613173..a03832a5fc95 100644
--- a/drivers/iio/humidity/hdc100x.c
+++ b/drivers/iio/humidity/hdc100x.c
@@ -55,7 +55,7 @@ static const struct {
         },
         { /* IIO_HUMIDITYRELATIVE channel */
                 .shift = 8,
-                .mask = 2,
+                .mask = 3,
         },
 };
 
@@ -164,14 +164,14 @@ static int hdc100x_get_measurement(struct hdc100x_data *data,
                 dev_err(&client->dev, "cannot read high byte measurement");
                 return ret;
         }
-        val = ret << 6;
+        val = ret << 8;
 
         ret = i2c_smbus_read_byte(client);
         if (ret < 0) {
                 dev_err(&client->dev, "cannot read low byte measurement");
                 return ret;
         }
-        val |= ret >> 2;
+        val |= ret;
 
         return val;
 }
@@ -211,18 +211,18 @@ static int hdc100x_read_raw(struct iio_dev *indio_dev,
                 return IIO_VAL_INT_PLUS_MICRO;
         case IIO_CHAN_INFO_SCALE:
                 if (chan->type == IIO_TEMP) {
-                        *val = 165;
-                        *val2 = 65536 >> 2;
+                        *val = 165000;
+                        *val2 = 65536;
                         return IIO_VAL_FRACTIONAL;
                 } else {
-                        *val = 0;
-                        *val2 = 10000;
-                        return IIO_VAL_INT_PLUS_MICRO;
+                        *val = 100;
+                        *val2 = 65536;
+                        return IIO_VAL_FRACTIONAL;
                 }
                 break;
         case IIO_CHAN_INFO_OFFSET:
-                *val = -3971;
-                *val2 = 879096;
+                *val = -15887;
+                *val2 = 515151;
                 return IIO_VAL_INT_PLUS_MICRO;
         default:
                 return -EINVAL;
diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
index 0bf92b06d7d8..b8a290ec984e 100644
--- a/drivers/iio/imu/bmi160/bmi160_core.c
+++ b/drivers/iio/imu/bmi160/bmi160_core.c
@@ -209,11 +209,11 @@ static const struct  bmi160_scale_item bmi160_scale_table[] = {
 };
 
 static const struct bmi160_odr bmi160_accel_odr[] = {
-        {0x01, 0, 78125},
-        {0x02, 1, 5625},
-        {0x03, 3, 125},
-        {0x04, 6, 25},
-        {0x05, 12, 5},
+        {0x01, 0, 781250},
+        {0x02, 1, 562500},
+        {0x03, 3, 125000},
+        {0x04, 6, 250000},
+        {0x05, 12, 500000},
         {0x06, 25, 0},
         {0x07, 50, 0},
         {0x08, 100, 0},
@@ -229,7 +229,7 @@ static const struct bmi160_odr bmi160_gyro_odr[] = {
         {0x08, 100, 0},
         {0x09, 200, 0},
         {0x0A, 400, 0},
-        {0x0B, 8000, 0},
+        {0x0B, 800, 0},
         {0x0C, 1600, 0},
         {0x0D, 3200, 0},
 };
@@ -364,8 +364,8 @@ int bmi160_set_odr(struct bmi160_data *data, enum bmi160_sensor_type t,
 
         return regmap_update_bits(data->regmap,
                                   bmi160_regs[t].config,
-                                  bmi160_odr_table[t].tbl[i].bits,
-                                  bmi160_regs[t].config_odr_mask);
+                                  bmi160_regs[t].config_odr_mask,
+                                  bmi160_odr_table[t].tbl[i].bits);
 }
 
 static int bmi160_get_odr(struct bmi160_data *data, enum bmi160_sensor_type t,
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index ae2806aafb72..0c52dfe64977 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -210,22 +210,35 @@ static int iio_trigger_attach_poll_func(struct iio_trigger *trig,
 
         /* Prevent the module from being removed whilst attached to a trigger */
         __module_get(pf->indio_dev->info->driver_module);
+
+        /* Get irq number */
         pf->irq = iio_trigger_get_irq(trig);
+        if (pf->irq < 0)
+                goto out_put_module;
+
+        /* Request irq */
         ret = request_threaded_irq(pf->irq, pf->h, pf->thread,
                                    pf->type, pf->name,
                                    pf);
-        if (ret < 0) {
-                module_put(pf->indio_dev->info->driver_module);
-                return ret;
-        }
+        if (ret < 0)
+                goto out_put_irq;
 
+        /* Enable trigger in driver */
         if (trig->ops && trig->ops->set_trigger_state && notinuse) {
                 ret = trig->ops->set_trigger_state(trig, true);
                 if (ret < 0)
-                        module_put(pf->indio_dev->info->driver_module);
+                        goto out_free_irq;
         }
 
         return ret;
+
+out_free_irq:
+        free_irq(pf->irq, pf);
+out_put_irq:
+        iio_trigger_put_irq(trig, pf->irq);
+out_put_module:
+        module_put(pf->indio_dev->info->driver_module);
+        return ret;
 }
 
 static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c
index b4dbb3912977..651d57b8abbf 100644
--- a/drivers/iio/light/apds9960.c
+++ b/drivers/iio/light/apds9960.c
@@ -1011,6 +1011,7 @@ static int apds9960_probe(struct i2c_client *client,
 
         iio_device_attach_buffer(indio_dev, buffer);
 
+        indio_dev->dev.parent = &client->dev;
         indio_dev->info = &apds9960_info;
         indio_dev->name = APDS9960_DRV_NAME;
         indio_dev->channels = apds9960_channels;
diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c
index 72b364e4aa72..b54dcba05a82 100644
--- a/drivers/iio/light/bh1780.c
+++ b/drivers/iio/light/bh1780.c
@@ -84,7 +84,7 @@ static int bh1780_debugfs_reg_access(struct iio_dev *indio_dev,
         int ret;
 
         if (!readval)
-                bh1780_write(bh1780, (u8)reg, (u8)writeval);
+                return bh1780_write(bh1780, (u8)reg, (u8)writeval);
 
         ret = bh1780_read(bh1780, (u8)reg);
         if (ret < 0)
@@ -187,7 +187,7 @@ static int bh1780_probe(struct i2c_client *client,
 
         indio_dev->dev.parent = &client->dev;
         indio_dev->info = &bh1780_info;
-        indio_dev->name = id->name;
+        indio_dev->name = "bh1780";
         indio_dev->channels = bh1780_channels;
         indio_dev->num_channels = ARRAY_SIZE(bh1780_channels);
         indio_dev->modes = INDIO_DIRECT_MODE;
@@ -226,7 +226,8 @@ static int bh1780_remove(struct i2c_client *client)
 static int bh1780_runtime_suspend(struct device *dev)
 {
         struct i2c_client *client = to_i2c_client(dev);
-        struct bh1780_data *bh1780 = i2c_get_clientdata(client);
+        struct iio_dev *indio_dev = i2c_get_clientdata(client);
+        struct bh1780_data *bh1780 = iio_priv(indio_dev);
         int ret;
 
         ret = bh1780_write(bh1780, BH1780_REG_CONTROL, BH1780_POFF);
@@ -241,7 +242,8 @@ static int bh1780_runtime_suspend(struct device *dev)
 static int bh1780_runtime_resume(struct device *dev)
 {
         struct i2c_client *client = to_i2c_client(dev);
-        struct bh1780_data *bh1780 = i2c_get_clientdata(client);
+        struct iio_dev *indio_dev = i2c_get_clientdata(client);
+        struct bh1780_data *bh1780 = iio_priv(indio_dev);
         int ret;
 
         ret = bh1780_write(bh1780, BH1780_REG_CONTROL, BH1780_PON);
diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c
index e01e58a9bd14..f17cb2ea18f5 100644
--- a/drivers/iio/light/max44000.c
+++ b/drivers/iio/light/max44000.c
@@ -147,7 +147,6 @@ static const struct iio_chan_spec max44000_channels[] = {
         {
                 .type = IIO_PROXIMITY,
                 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-                .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
                 .scan_index = MAX44000_SCAN_INDEX_PRX,
                 .scan_type = {
                         .sign           = 'u',
diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c
index ecd3bd0a9769..0a9e8fadfa9d 100644
--- a/drivers/iio/magnetometer/st_magn_buffer.c
+++ b/drivers/iio/magnetometer/st_magn_buffer.c
@@ -82,7 +82,7 @@ static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = {
 
 int st_magn_allocate_ring(struct iio_dev *indio_dev)
 {
-        return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+        return iio_triggered_buffer_setup(indio_dev, NULL,
                 &st_sensors_trigger_handler, &st_magn_buffer_setup_ops);
 }
 
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 62036d2a9956..8250fc322c56 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -572,6 +572,7 @@ static const struct iio_info magn_info = {
 static const struct iio_trigger_ops st_magn_trigger_ops = {
         .owner = THIS_MODULE,
         .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE,
+        .validate_device = st_sensors_validate_device,
 };
 #define ST_MAGN_TRIGGER_OPS (&st_magn_trigger_ops)
 #else
diff --git a/drivers/iio/pressure/bmp280.c b/drivers/iio/pressure/bmp280.c
index 2f1498e12bb2..724452d61846 100644
--- a/drivers/iio/pressure/bmp280.c
+++ b/drivers/iio/pressure/bmp280.c
@@ -879,8 +879,8 @@ static int bmp280_probe(struct i2c_client *client,
         if (ret < 0)
                 return ret;
         if (chip_id != id->driver_data) {
-                dev_err(&client->dev, "bad chip id.  expected %x got %x\n",
-                        BMP280_CHIP_ID, chip_id);
+                dev_err(&client->dev, "bad chip id.  expected %lx got %x\n",
+                        id->driver_data, chip_id);
                 return -EINVAL;
         }
 
diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c
index 2ff53f222352..99468d0a64e7 100644
--- a/drivers/iio/pressure/st_pressure_buffer.c
+++ b/drivers/iio/pressure/st_pressure_buffer.c
@@ -82,7 +82,7 @@ static const struct iio_buffer_setup_ops st_press_buffer_setup_ops = {
 
 int st_press_allocate_ring(struct iio_dev *indio_dev)
 {
-        return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+        return iio_triggered_buffer_setup(indio_dev, NULL,
                 &st_sensors_trigger_handler, &st_press_buffer_setup_ops);
 }
 
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 9e9b72a8f18f..92a118c3c4ac 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -28,15 +28,21 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_pressure.h"
 
+#define MCELSIUS_PER_CELSIUS                    1000
+
+/* Default pressure sensitivity */
 #define ST_PRESS_LSB_PER_MBAR                   4096UL
 #define ST_PRESS_KPASCAL_NANO_SCALE             (100000000UL / \
                                                  ST_PRESS_LSB_PER_MBAR)
+
+/* Default temperature sensitivity */
 #define ST_PRESS_LSB_PER_CELSIUS                480UL
-#define ST_PRESS_CELSIUS_NANO_SCALE             (1000000000UL / \
-                                                 ST_PRESS_LSB_PER_CELSIUS)
+#define ST_PRESS_MILLI_CELSIUS_OFFSET           42500UL
+
 #define ST_PRESS_NUMBER_DATA_CHANNELS           1
 
 /* FULLSCALE */
+#define ST_PRESS_FS_AVL_1100MB                  1100
 #define ST_PRESS_FS_AVL_1260MB                  1260
 
 #define ST_PRESS_1_OUT_XL_ADDR                  0x28
@@ -54,9 +60,6 @@
 #define ST_PRESS_LPS331AP_PW_MASK               0x80
 #define ST_PRESS_LPS331AP_FS_ADDR               0x23
 #define ST_PRESS_LPS331AP_FS_MASK               0x30
-#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL       0x00
-#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN      ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN      ST_PRESS_CELSIUS_NANO_SCALE
 #define ST_PRESS_LPS331AP_BDU_ADDR              0x20
 #define ST_PRESS_LPS331AP_BDU_MASK              0x04
 #define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR         0x22
@@ -67,9 +70,14 @@
 #define ST_PRESS_LPS331AP_OD_IRQ_ADDR           0x22
 #define ST_PRESS_LPS331AP_OD_IRQ_MASK           0x40
 #define ST_PRESS_LPS331AP_MULTIREAD_BIT         true
-#define ST_PRESS_LPS331AP_TEMP_OFFSET           42500
 
 /* CUSTOM VALUES FOR LPS001WP SENSOR */
+
+/* LPS001WP pressure resolution */
+#define ST_PRESS_LPS001WP_LSB_PER_MBAR          16UL
+/* LPS001WP temperature resolution */
+#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS       64UL
+
 #define ST_PRESS_LPS001WP_WAI_EXP               0xba
 #define ST_PRESS_LPS001WP_ODR_ADDR              0x20
 #define ST_PRESS_LPS001WP_ODR_MASK              0x30
@@ -78,6 +86,8 @@
 #define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL      0x03
 #define ST_PRESS_LPS001WP_PW_ADDR               0x20
 #define ST_PRESS_LPS001WP_PW_MASK               0x40
+#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \
+        (100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR)
 #define ST_PRESS_LPS001WP_BDU_ADDR              0x20
 #define ST_PRESS_LPS001WP_BDU_MASK              0x04
 #define ST_PRESS_LPS001WP_MULTIREAD_BIT         true
@@ -94,11 +104,6 @@
 #define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL        0x04
 #define ST_PRESS_LPS25H_PW_ADDR                 0x20
 #define ST_PRESS_LPS25H_PW_MASK                 0x80
-#define ST_PRESS_LPS25H_FS_ADDR                 0x00
-#define ST_PRESS_LPS25H_FS_MASK                 0x00
-#define ST_PRESS_LPS25H_FS_AVL_1260_VAL         0x00
-#define ST_PRESS_LPS25H_FS_AVL_1260_GAIN        ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN        ST_PRESS_CELSIUS_NANO_SCALE
 #define ST_PRESS_LPS25H_BDU_ADDR                0x20
 #define ST_PRESS_LPS25H_BDU_MASK                0x04
 #define ST_PRESS_LPS25H_DRDY_IRQ_ADDR           0x23
@@ -109,7 +114,6 @@
 #define ST_PRESS_LPS25H_OD_IRQ_ADDR             0x22
 #define ST_PRESS_LPS25H_OD_IRQ_MASK             0x40
 #define ST_PRESS_LPS25H_MULTIREAD_BIT           true
-#define ST_PRESS_LPS25H_TEMP_OFFSET             42500
 #define ST_PRESS_LPS25H_OUT_XL_ADDR             0x28
 #define ST_TEMP_LPS25H_OUT_L_ADDR               0x2b
 
@@ -161,7 +165,9 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = {
                         .storagebits = 16,
                         .endianness = IIO_LE,
                 },
-                .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+                .info_mask_separate =
+                        BIT(IIO_CHAN_INFO_RAW) |
+                        BIT(IIO_CHAN_INFO_SCALE),
                 .modified = 0,
         },
         {
@@ -177,7 +183,7 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = {
                 },
                 .info_mask_separate =
                         BIT(IIO_CHAN_INFO_RAW) |
-                        BIT(IIO_CHAN_INFO_OFFSET),
+                        BIT(IIO_CHAN_INFO_SCALE),
                 .modified = 0,
         },
         IIO_CHAN_SOFT_TIMESTAMP(1)
@@ -212,11 +218,14 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
                         .addr = ST_PRESS_LPS331AP_FS_ADDR,
                         .mask = ST_PRESS_LPS331AP_FS_MASK,
                         .fs_avl = {
+                                /*
+                                 * Pressure and temperature sensitivity values
+                                 * as defined in table 3 of LPS331AP datasheet.
+                                 */
                                 [0] = {
                                         .num = ST_PRESS_FS_AVL_1260MB,
-                                        .value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL,
-                                        .gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN,
-                                        .gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN,
+                                        .gain = ST_PRESS_KPASCAL_NANO_SCALE,
+                                        .gain2 = ST_PRESS_LSB_PER_CELSIUS,
                                 },
                         },
                 },
@@ -261,7 +270,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
                         .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
                 },
                 .fs = {
-                        .addr = 0,
+                        .fs_avl = {
+                                /*
+                                 * Pressure and temperature resolution values
+                                 * as defined in table 3 of LPS001WP datasheet.
+                                 */
+                                [0] = {
+                                        .num = ST_PRESS_FS_AVL_1100MB,
+                                        .gain = ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN,
+                                        .gain2 = ST_PRESS_LPS001WP_LSB_PER_CELSIUS,
+                                },
+                        },
                 },
                 .bdu = {
                         .addr = ST_PRESS_LPS001WP_BDU_ADDR,
@@ -298,14 +317,15 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
                         .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
                 },
                 .fs = {
-                        .addr = ST_PRESS_LPS25H_FS_ADDR,
-                        .mask = ST_PRESS_LPS25H_FS_MASK,
                         .fs_avl = {
+                                /*
+                                 * Pressure and temperature sensitivity values
+                                 * as defined in table 3 of LPS25H datasheet.
+                                 */
                                 [0] = {
                                         .num = ST_PRESS_FS_AVL_1260MB,
-                                        .value = ST_PRESS_LPS25H_FS_AVL_1260_VAL,
-                                        .gain = ST_PRESS_LPS25H_FS_AVL_1260_GAIN,
-                                        .gain2 = ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN,
+                                        .gain = ST_PRESS_KPASCAL_NANO_SCALE,
+                                        .gain2 = ST_PRESS_LSB_PER_CELSIUS,
                                 },
                         },
                 },
@@ -364,26 +384,26 @@ static int st_press_read_raw(struct iio_dev *indio_dev,
 
                 return IIO_VAL_INT;
         case IIO_CHAN_INFO_SCALE:
-                *val = 0;
-
                 switch (ch->type) {
                 case IIO_PRESSURE:
+                        *val = 0;
                         *val2 = press_data->current_fullscale->gain;
-                        break;
+                        return IIO_VAL_INT_PLUS_NANO;
                 case IIO_TEMP:
+                        *val = MCELSIUS_PER_CELSIUS;
                         *val2 = press_data->current_fullscale->gain2;
-                        break;
+                        return IIO_VAL_FRACTIONAL;
                 default:
                         err = -EINVAL;
                         goto read_error;
                 }
 
-                return IIO_VAL_INT_PLUS_NANO;
         case IIO_CHAN_INFO_OFFSET:
                 switch (ch->type) {
                 case IIO_TEMP:
-                        *val = 425;
-                        *val2 = 10;
+                        *val = ST_PRESS_MILLI_CELSIUS_OFFSET *
+                               press_data->current_fullscale->gain2;
+                        *val2 = MCELSIUS_PER_CELSIUS;
                         break;
                 default:
                         err = -EINVAL;
@@ -425,6 +445,7 @@ static const struct iio_info press_info = {
 static const struct iio_trigger_ops st_press_trigger_ops = {
         .owner = THIS_MODULE,
         .set_trigger_state = ST_PRESS_TRIGGER_SET_STATE,
+        .validate_device = st_sensors_validate_device,
 };
 #define ST_PRESS_TRIGGER_OPS (&st_press_trigger_ops)
 #else
diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c
index f4d29d5dbd5f..e2f926cdcad2 100644
--- a/drivers/iio/proximity/as3935.c
+++ b/drivers/iio/proximity/as3935.c
@@ -64,6 +64,7 @@ struct as3935_state {
         struct delayed_work work;
 
         u32 tune_cap;
+        u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */
         u8 buf[2] ____cacheline_aligned;
 };
 
@@ -72,7 +73,8 @@ static const struct iio_chan_spec as3935_channels[] = {
                 .type           = IIO_PROXIMITY,
                 .info_mask_separate =
                         BIT(IIO_CHAN_INFO_RAW) |
-                        BIT(IIO_CHAN_INFO_PROCESSED),
+                        BIT(IIO_CHAN_INFO_PROCESSED) |
+                        BIT(IIO_CHAN_INFO_SCALE),
                 .scan_index     = 0,
                 .scan_type = {
                         .sign           = 'u',
@@ -181,7 +183,12 @@ static int as3935_read_raw(struct iio_dev *indio_dev,
                 /* storm out of range */
                 if (*val == AS3935_DATA_MASK)
                         return -EINVAL;
-                *val *= 1000;
+
+                if (m == IIO_CHAN_INFO_PROCESSED)
+                        *val *= 1000;
+                break;
+        case IIO_CHAN_INFO_SCALE:
+                *val = 1000;
                 break;
         default:
                 return -EINVAL;
@@ -206,10 +213,10 @@ static irqreturn_t as3935_trigger_handler(int irq, void *private)
         ret = as3935_read(st, AS3935_DATA, &val);
         if (ret)
                 goto err_read;
-        val &= AS3935_DATA_MASK;
-        val *= 1000;
 
-        iio_push_to_buffers_with_timestamp(indio_dev, &val, pf->timestamp);
+        st->buffer[0] = val & AS3935_DATA_MASK;
+        iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
+                                           pf->timestamp);
 err_read:
         iio_trigger_notify_done(indio_dev->trig);
 
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
index bbfee53cfcf5..845e49a52430 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -2521,12 +2521,13 @@ kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob)
         return 0;
 
  failed:
-        if (ni)
+        if (ni) {
                 lnet_ni_decref(ni);
+                rej.ibr_cp.ibcp_queue_depth = kiblnd_msg_queue_size(version, ni);
+                rej.ibr_cp.ibcp_max_frags = kiblnd_rdma_frags(version, ni);
+        }
 
         rej.ibr_version             = version;
-        rej.ibr_cp.ibcp_queue_depth = kiblnd_msg_queue_size(version, ni);
-        rej.ibr_cp.ibcp_max_frags = kiblnd_rdma_frags(version, ni);
         kiblnd_reject(cmid, &rej);
 
         return -ECONNREFUSED;
diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index c17870cddb5b..fbce1f7e68ca 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -102,7 +102,7 @@ efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
         if (!efuseTbl)
                 return;
 
-        eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(*eFuseWord));
+        eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
         if (!eFuseWord) {
                 DBG_88E("%s: alloc eFuseWord fail!\n", __func__);
                 goto eFuseWord_failed;
diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c
index 87ea3b844951..363f3a34ddce 100644
--- a/drivers/staging/rtl8188eu/hal/usb_halinit.c
+++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c
@@ -2072,7 +2072,8 @@ void rtl8188eu_set_hal_ops(struct adapter *adapt)
 {
         struct hal_ops  *halfunc = &adapt->HalFunc;
 
-        adapt->HalData = kzalloc(sizeof(*adapt->HalData), GFP_KERNEL);
+
+        adapt->HalData = kzalloc(sizeof(struct hal_data_8188e), GFP_KERNEL);
         if (!adapt->HalData)
                 DBG_88E("cant not alloc memory for HAL DATA\n");
 
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index d029ffac0d69..99403b19092f 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -223,6 +223,8 @@ struct st_sensor_settings {
  * @get_irq_data_ready: Function to get the IRQ used for data ready signal.
  * @tf: Transfer function structure used by I/O operations.
  * @tb: Transfer buffers and mutex used by I/O operations.
+ * @hw_irq_trigger: if we're using the hardware interrupt on the sensor.
+ * @hw_timestamp: Latest timestamp from the interrupt handler, when in use.
  */
 struct st_sensor_data {
         struct device *dev;
@@ -247,6 +249,9 @@ struct st_sensor_data {
 
         const struct st_sensor_transfer_function *tf;
         struct st_sensor_transfer_buffer tb;
+
+        bool hw_irq_trigger;
+        s64 hw_timestamp;
 };
 
 #ifdef CONFIG_IIO_BUFFER
@@ -260,7 +265,8 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
                                 const struct iio_trigger_ops *trigger_ops);
 
 void st_sensors_deallocate_trigger(struct iio_dev *indio_dev);
-
+int st_sensors_validate_device(struct iio_trigger *trig,
+                               struct iio_dev *indio_dev);
 #else
 static inline int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
                                 const struct iio_trigger_ops *trigger_ops)
@@ -271,6 +277,7 @@ static inline void st_sensors_deallocate_trigger(struct iio_dev *indio_dev)
 {
         return;
 }
+#define st_sensors_validate_device NULL
 #endif
 
 int st_sensors_init_sensor(struct iio_dev *indio_dev,