Merge 4.9-rc5 into staging-next

We want the staging/iio fixes in here as well to resolve issues and
merge problems.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

4 files changed, 42 insertions, 35 deletions

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index b242457d0c80..bdb619a28a4e 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -816,8 +816,8 @@ static int st_accel_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = adata->current_fullscale->gain;
+		*val = adata->current_fullscale->gain / 1000000;
+		*val2 = adata->current_fullscale->gain % 1000000;
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		*val = adata->odr;
@@ -836,9 +836,13 @@ static int st_accel_write_raw(struct iio_dev *indio_dev,
 	int err;
 
 	switch (mask) {
-	case IIO_CHAN_INFO_SCALE:
-		err = st_sensors_set_fullscale_by_gain(indio_dev, val2);
+	case IIO_CHAN_INFO_SCALE: {
+		int gain;
+
+		gain = val * 1000000 + val2;
+		err = st_sensors_set_fullscale_by_gain(indio_dev, gain);
 		break;
+	}
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		if (val2)
 			return -EINVAL;
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
index 4509f8475c54..7ef94a90ecf7 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
@@ -30,26 +30,26 @@ static struct {
 	u32 usage_id;
 	int unit; /* 0 for default others from HID sensor spec */
 	int scale_val0; /* scale, whole number */
-	int scale_val1; /* scale, fraction in micros */
+	int scale_val1; /* scale, fraction in nanos */
 } unit_conversion[] = {
-	{HID_USAGE_SENSOR_ACCEL_3D, 0, 9, 806650},
+	{HID_USAGE_SENSOR_ACCEL_3D, 0, 9, 806650000},
 	{HID_USAGE_SENSOR_ACCEL_3D,
 		HID_USAGE_SENSOR_UNITS_METERS_PER_SEC_SQRD, 1, 0},
 	{HID_USAGE_SENSOR_ACCEL_3D,
-		HID_USAGE_SENSOR_UNITS_G, 9, 806650},
+		HID_USAGE_SENSOR_UNITS_G, 9, 806650000},
 
-	{HID_USAGE_SENSOR_GYRO_3D, 0, 0, 17453},
+	{HID_USAGE_SENSOR_GYRO_3D, 0, 0, 17453293},
 	{HID_USAGE_SENSOR_GYRO_3D,
 		HID_USAGE_SENSOR_UNITS_RADIANS_PER_SECOND, 1, 0},
 	{HID_USAGE_SENSOR_GYRO_3D,
-		HID_USAGE_SENSOR_UNITS_DEGREES_PER_SECOND, 0, 17453},
+		HID_USAGE_SENSOR_UNITS_DEGREES_PER_SECOND, 0, 17453293},
 
-	{HID_USAGE_SENSOR_COMPASS_3D, 0, 0, 1000},
+	{HID_USAGE_SENSOR_COMPASS_3D, 0, 0, 1000000},
 	{HID_USAGE_SENSOR_COMPASS_3D, HID_USAGE_SENSOR_UNITS_GAUSS, 1, 0},
 
-	{HID_USAGE_SENSOR_INCLINOMETER_3D, 0, 0, 17453},
+	{HID_USAGE_SENSOR_INCLINOMETER_3D, 0, 0, 17453293},
 	{HID_USAGE_SENSOR_INCLINOMETER_3D,
-		HID_USAGE_SENSOR_UNITS_DEGREES, 0, 17453},
+		HID_USAGE_SENSOR_UNITS_DEGREES, 0, 17453293},
 	{HID_USAGE_SENSOR_INCLINOMETER_3D,
 		HID_USAGE_SENSOR_UNITS_RADIANS, 1, 0},
 
@@ -57,7 +57,7 @@ static struct {
 	{HID_USAGE_SENSOR_ALS, HID_USAGE_SENSOR_UNITS_LUX, 1, 0},
 
 	{HID_USAGE_SENSOR_PRESSURE, 0, 100, 0},
-	{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 0, 1000},
+	{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 0, 1000000},
 };
 
 static int pow_10(unsigned power)
@@ -269,15 +269,15 @@ EXPORT_SYMBOL(hid_sensor_write_raw_hyst_value);
 /*
  * This fuction applies the unit exponent to the scale.
  * For example:
- * 9.806650 ->exp:2-> val0[980]val1[665000]
- * 9.000806 ->exp:2-> val0[900]val1[80600]
- * 0.174535 ->exp:2-> val0[17]val1[453500]
- * 1.001745 ->exp:0-> val0[1]val1[1745]
- * 1.001745 ->exp:2-> val0[100]val1[174500]
- * 1.001745 ->exp:4-> val0[10017]val1[450000]
- * 9.806650 ->exp:-2-> val0[0]val1[98066]
+ * 9.806650000 ->exp:2-> val0[980]val1[665000000]
+ * 9.000806000 ->exp:2-> val0[900]val1[80600000]
+ * 0.174535293 ->exp:2-> val0[17]val1[453529300]
+ * 1.001745329 ->exp:0-> val0[1]val1[1745329]
+ * 1.001745329 ->exp:2-> val0[100]val1[174532900]
+ * 1.001745329 ->exp:4-> val0[10017]val1[453290000]
+ * 9.806650000 ->exp:-2-> val0[0]val1[98066500]
  */
-static void adjust_exponent_micro(int *val0, int *val1, int scale0,
+static void adjust_exponent_nano(int *val0, int *val1, int scale0,
 				  int scale1, int exp)
 {
 	int i;
@@ -288,32 +288,32 @@ static void adjust_exponent_micro(int *val0, int *val1, int scale0,
 	if (exp > 0) {
 		*val0 = scale0 * pow_10(exp);
 		res = 0;
-		if (exp > 6) {
+		if (exp > 9) {
 			*val1 = 0;
 			return;
 		}
 		for (i = 0; i < exp; ++i) {
-			x = scale1 / pow_10(5 - i);
+			x = scale1 / pow_10(8 - i);
 			res += (pow_10(exp - 1 - i) * x);
-			scale1 = scale1 % pow_10(5 - i);
+			scale1 = scale1 % pow_10(8 - i);
 		}
 		*val0 += res;
 			*val1 = scale1 * pow_10(exp);
 	} else if (exp < 0) {
 		exp = abs(exp);
-		if (exp > 6) {
+		if (exp > 9) {
 			*val0 = *val1 = 0;
 			return;
 		}
 		*val0 = scale0 / pow_10(exp);
 		rem = scale0 % pow_10(exp);
 		res = 0;
-		for (i = 0; i < (6 - exp); ++i) {
-			x = scale1 / pow_10(5 - i);
-			res += (pow_10(5 - exp - i) * x);
-			scale1 = scale1 % pow_10(5 - i);
+		for (i = 0; i < (9 - exp); ++i) {
+			x = scale1 / pow_10(8 - i);
+			res += (pow_10(8 - exp - i) * x);
+			scale1 = scale1 % pow_10(8 - i);
 		}
-		*val1 = rem * pow_10(6 - exp) + res;
+		*val1 = rem * pow_10(9 - exp) + res;
 	} else {
 		*val0 = scale0;
 		*val1 = scale1;
@@ -335,14 +335,14 @@ int hid_sensor_format_scale(u32 usage_id,
 			unit_conversion[i].unit == attr_info->units) {
 			exp  = hid_sensor_convert_exponent(
 						attr_info->unit_expo);
-			adjust_exponent_micro(val0, val1,
+			adjust_exponent_nano(val0, val1,
 					unit_conversion[i].scale_val0,
 					unit_conversion[i].scale_val1, exp);
 			break;
 		}
 	}
 
-	return IIO_VAL_INT_PLUS_MICRO;
+	return IIO_VAL_INT_PLUS_NANO;
 }
 EXPORT_SYMBOL(hid_sensor_format_scale);
 
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 285a64a589d7..975a1f19f747 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -612,7 +612,7 @@ EXPORT_SYMBOL(st_sensors_sysfs_sampling_frequency_avail);
 ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
-	int i, len = 0;
+	int i, len = 0, q, r;
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
@@ -621,8 +621,10 @@ ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
 		if (sdata->sensor_settings->fs.fs_avl[i].num == 0)
 			break;
 
-		len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06u ",
-				sdata->sensor_settings->fs.fs_avl[i].gain);
+		q = sdata->sensor_settings->fs.fs_avl[i].gain / 1000000;
+		r = sdata->sensor_settings->fs.fs_avl[i].gain % 1000000;
+
+		len += scnprintf(buf + len, PAGE_SIZE - len, "%u.%06u ", q, r);
 	}
 	mutex_unlock(&indio_dev->mlock);
 	buf[len - 1] = '\n';
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index b98b9d94d184..a97e802ca523 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -335,6 +335,7 @@ static struct platform_driver hid_dev_rot_platform_driver = {
 	.id_table = hid_dev_rot_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
+		.pm     = &hid_sensor_pm_ops,
 	},
 	.probe		= hid_dev_rot_probe,
 	.remove		= hid_dev_rot_remove,