Merge 5.11-rc5 into staging-next

We need the IIO/Staging fixes in here as well.

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

5 files changed, 29 insertions, 23 deletions

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index b11c8c47ba2a..e946903b0993 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -397,16 +397,12 @@ static int tiadc_iio_buffered_hardware_setup(struct device *dev,
 	ret = devm_request_threaded_irq(dev, irq, pollfunc_th, pollfunc_bh,
 				flags, indio_dev->name, indio_dev);
 	if (ret)
-		goto error_kfifo_free;
+		return ret;
 
 	indio_dev->setup_ops = setup_ops;
 	indio_dev->modes |= INDIO_BUFFER_SOFTWARE;
 
 	return 0;
-
-error_kfifo_free:
-	iio_kfifo_free(indio_dev->buffer);
-	return ret;
 }
 
 static const char * const chan_name_ain[] = {
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index 0507283bd4c1..2dbd2646e44e 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -23,35 +23,31 @@
  * @sdata: Sensor data.
  *
  * returns:
- * 0 - no new samples available
- * 1 - new samples available
- * negative - error or unknown
+ * false - no new samples available or read error
+ * true - new samples available
  */
-static int st_sensors_new_samples_available(struct iio_dev *indio_dev,
-					    struct st_sensor_data *sdata)
+static bool st_sensors_new_samples_available(struct iio_dev *indio_dev,
+					     struct st_sensor_data *sdata)
 {
 	int ret, status;
 
 	/* How would I know if I can't check it? */
 	if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr)
-		return -EINVAL;
+		return true;
 
 	/* No scan mask, no interrupt */
 	if (!indio_dev->active_scan_mask)
-		return 0;
+		return false;
 
 	ret = regmap_read(sdata->regmap,
 			  sdata->sensor_settings->drdy_irq.stat_drdy.addr,
 			  &status);
 	if (ret < 0) {
 		dev_err(sdata->dev, "error checking samples available\n");
-		return ret;
+		return false;
 	}
 
-	if (status & sdata->sensor_settings->drdy_irq.stat_drdy.mask)
-		return 1;
-
-	return 0;
+	return !!(status & sdata->sensor_settings->drdy_irq.stat_drdy.mask);
 }
 
 /**
@@ -180,9 +176,15 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
 
 	/* Tell the interrupt handler that we're dealing with edges */
 	if (irq_trig == IRQF_TRIGGER_FALLING ||
-	    irq_trig == IRQF_TRIGGER_RISING)
+	    irq_trig == IRQF_TRIGGER_RISING) {
+		if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr) {
+			dev_err(&indio_dev->dev,
+				"edge IRQ not supported w/o stat register.\n");
+			err = -EOPNOTSUPP;
+			goto iio_trigger_free;
+		}
 		sdata->edge_irq = true;
-	else
+	} else {
 		/*
 		 * If we're not using edges (i.e. level interrupts) we
 		 * just mask off the IRQ, handle one interrupt, then
@@ -190,6 +192,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
 		 * interrupt handler top half again and start over.
 		 */
 		irq_trig |= IRQF_ONESHOT;
+	}
 
 	/*
 	 * If the interrupt pin is Open Drain, by definition this
diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 28921b62e642..e9297c25d4ef 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -187,9 +187,9 @@ static ssize_t ad5504_write_dac_powerdown(struct iio_dev *indio_dev,
 		return ret;
 
 	if (pwr_down)
-		st->pwr_down_mask |= (1 << chan->channel);
-	else
 		st->pwr_down_mask &= ~(1 << chan->channel);
+	else
+		st->pwr_down_mask |= (1 << chan->channel);
 
 	ret = ad5504_spi_write(st, AD5504_ADDR_CTRL,
 				AD5504_DAC_PWRDWN_MODE(st->pwr_down_mode) |
diff --git a/drivers/iio/proximity/sx9310.c b/drivers/iio/proximity/sx9310.c
index a2f820997afc..37fd0b65a014 100644
--- a/drivers/iio/proximity/sx9310.c
+++ b/drivers/iio/proximity/sx9310.c
@@ -601,7 +601,7 @@ static int sx9310_read_thresh(struct sx9310_data *data,
 		return ret;
 
 	regval = FIELD_GET(SX9310_REG_PROX_CTRL8_9_PTHRESH_MASK, regval);
-	if (regval > ARRAY_SIZE(sx9310_pthresh_codes))
+	if (regval >= ARRAY_SIZE(sx9310_pthresh_codes))
 		return -EINVAL;
 
 	*val = sx9310_pthresh_codes[regval];
@@ -1305,7 +1305,8 @@ sx9310_get_default_reg(struct sx9310_data *data, int i,
 		if (ret)
 			break;
 
-		pos = min(max(ilog2(pos), 3), 10) - 3;
+		/* Powers of 2, except for a gap between 16 and 64 */
+		pos = clamp(ilog2(pos), 3, 11) - (pos >= 32 ? 4 : 3);
 		reg_def->def &= ~SX9310_REG_PROX_CTRL7_AVGPOSFILT_MASK;
 		reg_def->def |= FIELD_PREP(SX9310_REG_PROX_CTRL7_AVGPOSFILT_MASK,
 					   pos);
diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
index 503fe54a0bb9..608ccb1d8bc8 100644
--- a/drivers/iio/temperature/mlx90632.c
+++ b/drivers/iio/temperature/mlx90632.c
@@ -248,6 +248,12 @@ static int mlx90632_set_meas_type(struct regmap *regmap, u8 type)
 	if (ret < 0)
 		return ret;
 
+	/*
+	 * Give the mlx90632 some time to reset properly before sending a new I2C command
+	 * if this is not done, the following I2C command(s) will not be accepted.
+	 */
+	usleep_range(150, 200);
+
 	ret = regmap_write_bits(regmap, MLX90632_REG_CONTROL,
 				 (MLX90632_CFG_MTYP_MASK | MLX90632_CFG_PWR_MASK),
 				 (MLX90632_MTYP_STATUS(type) | MLX90632_PWR_STATUS_HALT));