Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 29 insertions, 8 deletions

diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index 070feab08faa..2478f6c2ef25 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -22,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
 #include <linux/hid-sensor-hub.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -42,6 +43,10 @@ struct incl_3d_state {
 	struct hid_sensor_common common_attributes;
 	struct hid_sensor_hub_attribute_info incl[INCLI_3D_CHANNEL_MAX];
 	u32 incl_val[INCLI_3D_CHANNEL_MAX];
+	int scale_pre_decml;
+	int scale_post_decml;
+	int scale_precision;
+	int value_offset;
 };
 
 static const u32 incl_3d_addresses[INCLI_3D_CHANNEL_MAX] = {
@@ -106,11 +111,20 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
 	int report_id = -1;
 	u32 address;
 	int ret_type;
+	s32 poll_value;
 
 	*val = 0;
 	*val2 = 0;
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
+		poll_value = hid_sensor_read_poll_value(
+					&incl_state->common_attributes);
+		if (poll_value < 0)
+			return -EINVAL;
+
+		hid_sensor_power_state(&incl_state->common_attributes, true);
+		msleep_interruptible(poll_value * 2);
+
 		report_id =
 			incl_state->incl[chan->scan_index].report_id;
 		address = incl_3d_addresses[chan->scan_index];
@@ -120,17 +134,20 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
 				HID_USAGE_SENSOR_INCLINOMETER_3D, address,
 				report_id);
 		else {
+			hid_sensor_power_state(&incl_state->common_attributes,
+						false);
 			return -EINVAL;
 		}
+		hid_sensor_power_state(&incl_state->common_attributes, false);
 		ret_type = IIO_VAL_INT;
 		break;
 	case IIO_CHAN_INFO_SCALE:
-		*val = incl_state->incl[CHANNEL_SCAN_INDEX_X].units;
-		ret_type = IIO_VAL_INT;
+		*val = incl_state->scale_pre_decml;
+		*val2 = incl_state->scale_post_decml;
+		ret_type = incl_state->scale_precision;
 		break;
 	case IIO_CHAN_INFO_OFFSET:
-		*val = hid_sensor_convert_exponent(
-			incl_state->incl[CHANNEL_SCAN_INDEX_X].unit_expo);
+		*val = incl_state->value_offset;
 		ret_type = IIO_VAL_INT;
 		break;
 	case IIO_CHAN_INFO_SAMP_FREQ:
@@ -196,9 +213,8 @@ static int incl_3d_proc_event(struct hid_sensor_hub_device *hsdev,
 	struct iio_dev *indio_dev = platform_get_drvdata(priv);
 	struct incl_3d_state *incl_state = iio_priv(indio_dev);
 
-	dev_dbg(&indio_dev->dev, "incl_3d_proc_event [%d]\n",
-				incl_state->common_attributes.data_ready);
-	if (incl_state->common_attributes.data_ready)
+	dev_dbg(&indio_dev->dev, "incl_3d_proc_event\n");
+	if (atomic_read(&incl_state->common_attributes.data_ready))
 		hid_sensor_push_data(indio_dev,
 				(u8 *)incl_state->incl_val,
 				sizeof(incl_state->incl_val));
@@ -279,6 +295,11 @@ static int incl_3d_parse_report(struct platform_device *pdev,
 			st->incl[1].index, st->incl[1].report_id,
 			st->incl[2].index, st->incl[2].report_id);
 
+	st->scale_precision = hid_sensor_format_scale(
+				HID_USAGE_SENSOR_INCLINOMETER_3D,
+				&st->incl[CHANNEL_SCAN_INDEX_X],
+				&st->scale_pre_decml, &st->scale_post_decml);
+
 	/* Set Sensitivity field ids, when there is no individual modifier */
 	if (st->common_attributes.sensitivity.index < 0) {
 		sensor_hub_input_get_attribute_info(hsdev,
@@ -349,7 +370,7 @@ static int hid_incl_3d_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
 		goto error_free_dev_mem;
 	}
-	incl_state->common_attributes.data_ready = false;
+	atomic_set(&incl_state->common_attributes.data_ready, 0);
 	ret = hid_sensor_setup_trigger(indio_dev, name,
 					&incl_state->common_attributes);
 	if (ret) {