Merge tag 'iio-for-5.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of features and cleanups for IIO in 5.10

We have a couple of changes that apply to large sets of drivers, so
I have grouped those to keep this short.

There are a few late breaking fixes in here that can wait for the
merge window.

dt yaml conversions
-------------------

* adi,ad7768-1
* adi,ad7949
* aspeed,ast2400
* cosmic,10001-adc
* dlg,da9150-gpadc
* fsl,imx25-gcq
* fsl,imx7d-adc
* fsl,vf610
* holt,hi8435
* marvell,berlin2-adc
* motorola,cpcap-adc
* nuvoton,nau7802
* nuvoton,npcm750-adc
* nxp,lpc1850-adc
* nxp,lpc3220
* sprd,sc2720-adc
* st,stmpe-adc
* ti,adc12138
* ti,ads1015
* ti,ads7950
* ti,twl4030-madc

Features
--------

* adxrs290
  - Add triggered buffer support and expose data ready signal as a possible
    trigger. Includes updating bindings.
  - Add debugfs hooks for register access.
* mlx90632
  - Add a clear user interface to override the measured ambient temperature.
* vl53l0x
  - Add IRQ support including dt bindings.

Cleanups and minor fixes
------------------------
(groups)
Replace mlock with local lock:
  * adf4350
  * exynos-adc
  * fls-imx25-gcq
  * stm32-dac

devm use to simplify probe error handling and remove functions.
  * adis16201
  * adis16203
  * adis16209
  * adis16240
  * adis16136
  * adis16260
  * adis16400
  * adis16460
  * adis16480
  * adis library - drop unused adis_setup_buffer_and_trigger()

of_match_ptr removal and incorrect ACPI binding removal
  of_match_ptr() rarely makes sense in an IIO driver as space saving
  is trivial and it breaks ACPI PRP0001 based instantiation.
  Mostly this series is about removing examples that get copied into new
  drivers.
  * ad2s1200
  * ad5272
  * ad5446
  * ad5592r
  * ad5593r
  * ad5703
  * ak8974
  * ak8975
  * ams-iaq-core
  * as3935
  * atlas-sensor
  * ds1803
  * hdc100x
  * htu21
  * icp10100
  * lmp91000
  * pulsedlight
  * max30102
  * max5432
  * max5481
  * mcp4018
  * mcp4131
  * mcp4531
  * mcp4725
  * ms5611
  * ms5637
  * si7020
  * sgp30
  * ti-dac082s085
  * ti-dac5571
  * tmp007
  * tsys01
  * vz89x
  * zpa2326

kernel-doc fixes
  * iio-core
  * ad7303
  * ad7947
  * adis16080
  * adis16400
  * iio_dummy_evgen
  * sgp30

Fixes for buffer alignment when passed to iio_push_to_buffers_with_timestamp()
This is a long running effort.  There are a few more drivers to come.
  * inv_mpu6050
  * itg3200
  * si1145
  * st_lsm6dsx
  * ti-adc0832
  * ti-adc12138

(not driver focused)
* MAINTAINERS
  - Consolidate Analog Device IIO entries whilst removing Beniamin Bia.
  - Remove Hartmut Knaack as a listed IIO maintainer as he hasn't been
    active for a long time and people are getting intermitted bounces.
* Add __printf() markings to a few functions that were missing them.
* drop some rotted documentation from staging.
* rework buffer sysfs file creation (precursor to multiple buffer support)

(individual drivers)
* ad5592r
  - Fix use of true for IIO_SHARED_BY_TYPE
  - Tidy up locking and indentation.
* ad9467
  - Improve error message on chip-id missmatch.
  - Use more appropriate error value if chip-id not recognised.
* adis-library
  - Simplify burst mode handling.
* adxrs290
  - Make sure to switch device to standby mode during remove.
* as73211
  - Increase measurement timeout as seems some devices are slower.
* bma180
  - Fix use of true fo IIO_SHARED_BY_TYPE
* exynos_adc
  - Update binding to require second interrut with touch screen.
  - Update binding to not require syscon on S5Pv210
* hmc5843
  - Fix use of true for IIO_SHARED_BY_TYPE
* inv_mpu6050
  - Use regmap_noinc_read() for fifo reading.
* palmas_gpadc
  - Use module_platform_driver() to remove boilerplate.
* meson-saradc
  - style consistency fixes
* rockchip_saradc
  - Allow compile testing with !ARM.
* st_lsm6dsx
  - Changing scaling factor to use IIO_VAL_INT_PLUS_NANO to improve precision.
  - Fix an issue with unchecked return value.
* stm32-adc
  - Fix a missing return introduced in dev_err_probe() patch earlier in
    cycle.
* sx9310
  - Prefer async mode for probe as paticularly slow startup.
* vcnl4000
  - Add missing interrupt property to dt binding.

* tag 'iio-for-5.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (126 commits)
  dt-bindings: iio: vishay,vcnl4000: add interrupts property
  iio:imu:inv_mpu6050: Use regmap_noinc_read for fifo reads.
  iio:imu:inv_mpu6050 Fix dma and ts alignment and data leak issues.
  iio:adc:ti-adc12138 Fix alignment issue with timestamp
  iio:adc:ti-adc0832 Fix alignment issue with timestamp
  iio:imu:st_lsm6dsx Fix alignment and data leak issues
  iio:light:si1145: Fix timestamp alignment and prevent data leak.
  iio:gyro:itg3200: Fix timestamp alignment and prevent data leak.
  iio:imu:st_lsm6dsx: check st_lsm6dsx_shub_read_output return
  iio: adc: exynos_adc: Replace indio_dev->mlock with own device lock
  dt-bindings:iio:adc:holt,hi8435 yaml conversion
  dt-bindings:iio:adc:adi,ad7768-1 yaml conversion
  dt-bindings:iio:adc:adi,ad7949 yaml conversion
  dt-bindings:iio:adc:dlg,da9150-gpadc yaml conversion
  dt-bindings:iio:adc:motorola,cpcap-adc yaml conversion
  dt-bindings:iio:adc:nxp,lpc3220-adc yaml conversion
  dt-bindings:iio:adc:nxp,lpc1850-adc yaml conversion
  dt-bindings:iio:adc:fsl,imx25-gcq yaml conversion
  dt-bindings:iio:adc:fsl,imx7d-adc yaml conversion
  dt-bindings:iio:adc:ti,ads1015 yaml conversion
  ...

11 files changed, 75 insertions, 80 deletions

diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index fef503f8012d..82abd4d6886c 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -68,8 +68,8 @@ enum ad5064_regmap_type {
  * struct ad5064_chip_info - chip specific information
  * @shared_vref:	whether the vref supply is shared between channels
  * @internal_vref:	internal reference voltage. 0 if the chip has no
-			internal vref.
- * @channel:		channel specification
+ *			internal vref.
+ * @channels:		channel specification
  * @num_channels:	number of channels
  * @regmap_type:	register map layout variant
  */
@@ -98,6 +98,7 @@ typedef int (*ad5064_write_func)(struct ad5064_state *st, unsigned int cmd,
  * @use_internal_vref:	set to true if the internal reference voltage should be
  *			used.
  * @write:		register write callback
+ * @lock:		maintain consistency between cached and dev state
  * @data:		i2c/spi transfer buffers
  */
 
@@ -111,7 +112,6 @@ struct ad5064_state {
 	bool				use_internal_vref;
 
 	ad5064_write_func		write;
-	/* Lock used to maintain consistency between cached and dev state */
 	struct mutex lock;
 
 	/*
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 935a6177569f..d87e21016863 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -17,6 +17,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -478,13 +479,11 @@ static const struct spi_device_id ad5446_spi_ids[] = {
 };
 MODULE_DEVICE_TABLE(spi, ad5446_spi_ids);
 
-#ifdef CONFIG_OF
 static const struct of_device_id ad5446_of_ids[] = {
 	{ .compatible = "ti,dac7512" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ad5446_of_ids);
-#endif
 
 static int ad5446_spi_probe(struct spi_device *spi)
 {
@@ -502,7 +501,7 @@ static int ad5446_spi_remove(struct spi_device *spi)
 static struct spi_driver ad5446_spi_driver = {
 	.driver = {
 		.name	= "ad5446",
-		.of_match_table = of_match_ptr(ad5446_of_ids),
+		.of_match_table = ad5446_of_ids,
 	},
 	.probe		= ad5446_spi_probe,
 	.remove		= ad5446_spi_remove,
diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 1fd75c02a7cd..0405e92b9e8c 100644
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -374,36 +374,36 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev,
 {
 	struct ad5592r_state *st = iio_priv(iio_dev);
 	u16 read_val;
-	int ret;
+	int ret, mult;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&st->lock);
-
 		if (!chan->output) {
+			mutex_lock(&st->lock);
 			ret = st->ops->read_adc(st, chan->channel, &read_val);
+			mutex_unlock(&st->lock);
 			if (ret)
-				goto unlock;
+				return ret;
 
 			if ((read_val >> 12 & 0x7) != (chan->channel & 0x7)) {
 				dev_err(st->dev, "Error while reading channel %u\n",
 						chan->channel);
-				ret = -EIO;
-				goto unlock;
+				return -EIO;
 			}
 
 			read_val &= GENMASK(11, 0);
 
 		} else {
+			mutex_lock(&st->lock);
 			read_val = st->cached_dac[chan->channel];
+			mutex_unlock(&st->lock);
 		}
 
 		dev_dbg(st->dev, "Channel %u read: 0x%04hX\n",
 				chan->channel, read_val);
 
 		*val = (int) read_val;
-		ret = IIO_VAL_INT;
-		break;
+		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
 		*val = ad5592r_get_vref(st);
 
@@ -412,24 +412,24 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev,
 			*val = div_s64_rem(tmp, 1000000000LL, val2);
 
 			return IIO_VAL_INT_PLUS_MICRO;
-		} else {
-			int mult;
+		}
 
-			mutex_lock(&st->lock);
+		mutex_lock(&st->lock);
 
-			if (chan->output)
-				mult = !!(st->cached_gp_ctrl &
-					AD5592R_REG_CTRL_DAC_RANGE);
-			else
-				mult = !!(st->cached_gp_ctrl &
-					AD5592R_REG_CTRL_ADC_RANGE);
+		if (chan->output)
+			mult = !!(st->cached_gp_ctrl &
+				AD5592R_REG_CTRL_DAC_RANGE);
+		else
+			mult = !!(st->cached_gp_ctrl &
+				AD5592R_REG_CTRL_ADC_RANGE);
 
-			*val *= ++mult;
+		mutex_unlock(&st->lock);
 
-			*val2 = chan->scan_type.realbits;
-			ret = IIO_VAL_FRACTIONAL_LOG2;
-		}
-		break;
+		*val *= ++mult;
+
+		*val2 = chan->scan_type.realbits;
+
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_OFFSET:
 		ret = ad5592r_get_vref(st);
 
@@ -439,15 +439,13 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev,
 			*val = (-34365 * 25) / ret;
 		else
 			*val = (-75365 * 25) / ret;
-		ret =  IIO_VAL_INT;
-		break;
+
+		mutex_unlock(&st->lock);
+
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	}
-
-unlock:
-	mutex_unlock(&st->lock);
-	return ret;
 }
 
 static int ad5592r_write_raw_get_fmt(struct iio_dev *indio_dev,
@@ -486,7 +484,7 @@ static const struct iio_chan_spec_ext_info ad5592r_ext_info[] = {
 	{
 	 .name = "scale_available",
 	 .read = ad5592r_show_scale_available,
-	 .shared = true,
+	 .shared = IIO_SHARED_BY_TYPE,
 	 },
 	{},
 };
diff --git a/drivers/iio/dac/ad5592r.c b/drivers/iio/dac/ad5592r.c
index 49308ad13c4b..41f651500668 100644
--- a/drivers/iio/dac/ad5592r.c
+++ b/drivers/iio/dac/ad5592r.c
@@ -10,9 +10,8 @@
 
 #include <linux/bitops.h>
 #include <linux/module.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/spi/spi.h>
-#include <linux/acpi.h>
 
 #define AD5592R_GPIO_READBACK_EN	BIT(10)
 #define AD5592R_LDAC_READBACK_EN	BIT(6)
@@ -157,8 +156,8 @@ MODULE_DEVICE_TABLE(acpi, ad5592r_acpi_match);
 static struct spi_driver ad5592r_spi_driver = {
 	.driver = {
 		.name = "ad5592r",
-		.of_match_table = of_match_ptr(ad5592r_of_match),
-		.acpi_match_table = ACPI_PTR(ad5592r_acpi_match),
+		.of_match_table = ad5592r_of_match,
+		.acpi_match_table = ad5592r_acpi_match,
 	},
 	.probe = ad5592r_spi_probe,
 	.remove = ad5592r_spi_remove,
diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c
index 1fbe9c019c7f..5b4df36fdc2a 100644
--- a/drivers/iio/dac/ad5593r.c
+++ b/drivers/iio/dac/ad5593r.c
@@ -11,8 +11,7 @@
 #include <linux/bitops.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/acpi.h>
+#include <linux/mod_devicetable.h>
 
 #define AD5593R_MODE_CONF		(0 << 4)
 #define AD5593R_MODE_DAC_WRITE		(1 << 4)
@@ -124,8 +123,8 @@ MODULE_DEVICE_TABLE(acpi, ad5593r_acpi_match);
 static struct i2c_driver ad5593r_driver = {
 	.driver = {
 		.name = "ad5593r",
-		.of_match_table = of_match_ptr(ad5593r_of_match),
-		.acpi_match_table = ACPI_PTR(ad5593r_acpi_match),
+		.of_match_table = ad5593r_of_match,
+		.acpi_match_table = ad5593r_acpi_match,
 	},
 	.probe = ad5593r_i2c_probe,
 	.remove = ad5593r_i2c_remove,
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index 4460aa57a33f..2e46def9d8ee 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -7,6 +7,7 @@
 
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/kernel.h>
 #include <linux/spi/spi.h>
 #include <linux/slab.h>
@@ -29,6 +30,9 @@
  * @spi:		the device for this driver instance
  * @config:		cached config register value
  * @dac_cache:		current DAC raw value (chip does not support readback)
+ * @vdd_reg:		reference to VDD regulator
+ * @vref_reg:		reference to VREF regulator
+ * @lock:		protect writes and cache updates
  * @data:		spi transfer buffer
  */
 
@@ -287,7 +291,7 @@ MODULE_DEVICE_TABLE(spi, ad7303_spi_ids);
 static struct spi_driver ad7303_driver = {
 	.driver = {
 		.name = "ad7303",
-		.of_match_table = of_match_ptr(ad7303_spi_of_match),
+		.of_match_table = ad7303_spi_of_match,
 	},
 	.probe = ad7303_probe,
 	.remove = ad7303_remove,
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index ee174d224110..beb9a15b7c74 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -16,8 +16,8 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/regulator/consumer.h>
-#include <linux/of_device.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -357,29 +357,16 @@ static const struct iio_info mcp4725_info = {
 	.attrs = &mcp4725_attribute_group,
 };
 
-#ifdef CONFIG_OF
 static int mcp4725_probe_dt(struct device *dev,
 			    struct mcp4725_platform_data *pdata)
 {
-	struct device_node *np = dev->of_node;
-
-	if (!np)
-		return -ENODEV;
-
 	/* check if is the vref-supply defined */
-	pdata->use_vref = of_property_read_bool(np, "vref-supply");
+	pdata->use_vref = device_property_read_bool(dev, "vref-supply");
 	pdata->vref_buffered =
-		of_property_read_bool(np, "microchip,vref-buffered");
+		device_property_read_bool(dev, "microchip,vref-buffered");
 
 	return 0;
 }
-#else
-static int mcp4725_probe_dt(struct device *dev,
-			    struct mcp4725_platform_data *platform_data)
-{
-	return -ENODEV;
-}
-#endif
 
 static int mcp4725_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
@@ -398,8 +385,8 @@ static int mcp4725_probe(struct i2c_client *client,
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
-	if (client->dev.of_node)
-		data->id = (enum chip_id)of_device_get_match_data(&client->dev);
+	if (dev_fwnode(&client->dev))
+		data->id = (enum chip_id)device_get_match_data(&client->dev);
 	else
 		data->id = id->driver_data;
 	pdata = dev_get_platdata(&client->dev);
@@ -519,7 +506,6 @@ static const struct i2c_device_id mcp4725_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mcp4725_id);
 
-#ifdef CONFIG_OF
 static const struct of_device_id mcp4725_of_match[] = {
 	{
 		.compatible = "microchip,mcp4725",
@@ -532,12 +518,11 @@ static const struct of_device_id mcp4725_of_match[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mcp4725_of_match);
-#endif
 
 static struct i2c_driver mcp4725_driver = {
 	.driver = {
 		.name	= MCP4725_DRV_NAME,
-		.of_match_table = of_match_ptr(mcp4725_of_match),
+		.of_match_table = mcp4725_of_match,
 		.pm	= &mcp4725_pm_ops,
 	},
 	.probe		= mcp4725_probe,
diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index 092c796fa3d9..12dec68c16f7 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -26,9 +26,12 @@
 /**
  * struct stm32_dac - private data of DAC driver
  * @common:		reference to DAC common data
+ * @lock:		lock to protect against potential races when reading
+ *			and update CR, to keep it in sync with pm_runtime
  */
 struct stm32_dac {
 	struct stm32_dac_common *common;
+	struct mutex		lock;
 };
 
 static int stm32_dac_is_enabled(struct iio_dev *indio_dev, int channel)
@@ -58,10 +61,10 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch,
 	int ret;
 
 	/* already enabled / disabled ? */
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&dac->lock);
 	ret = stm32_dac_is_enabled(indio_dev, ch);
 	if (ret < 0 || enable == !!ret) {
-		mutex_unlock(&indio_dev->mlock);
+		mutex_unlock(&dac->lock);
 		return ret < 0 ? ret : 0;
 	}
 
@@ -69,13 +72,13 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch,
 		ret = pm_runtime_get_sync(dev);
 		if (ret < 0) {
 			pm_runtime_put_noidle(dev);
-			mutex_unlock(&indio_dev->mlock);
+			mutex_unlock(&dac->lock);
 			return ret;
 		}
 	}
 
 	ret = regmap_update_bits(dac->common->regmap, STM32_DAC_CR, msk, en);
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&dac->lock);
 	if (ret < 0) {
 		dev_err(&indio_dev->dev, "%s failed\n", en ?
 			"Enable" : "Disable");
@@ -327,6 +330,8 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	indio_dev->info = &stm32_dac_iio_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
+	mutex_init(&dac->lock);
+
 	ret = stm32_dac_chan_of_init(indio_dev);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c
index 86bfb1c3f9b9..de33c1fc6e0b 100644
--- a/drivers/iio/dac/ti-dac082s085.c
+++ b/drivers/iio/dac/ti-dac082s085.c
@@ -14,6 +14,7 @@
 
 #include <linux/iio/iio.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regulator/consumer.h>
 #include <linux/spi/spi.h>
 
@@ -324,7 +325,6 @@ static int ti_dac_remove(struct spi_device *spi)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id ti_dac_of_id[] = {
 	{ .compatible = "ti,dac082s085" },
 	{ .compatible = "ti,dac102s085" },
@@ -335,7 +335,6 @@ static const struct of_device_id ti_dac_of_id[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ti_dac_of_id);
-#endif
 
 static const struct spi_device_id ti_dac_spi_id[] = {
 	{ "dac082s085", dual_8bit  },
@@ -351,7 +350,7 @@ MODULE_DEVICE_TABLE(spi, ti_dac_spi_id);
 static struct spi_driver ti_dac_driver = {
 	.driver = {
 		.name		= "ti-dac082s085",
-		.of_match_table	= of_match_ptr(ti_dac_of_id),
+		.of_match_table	= ti_dac_of_id,
 	},
 	.probe	  = ti_dac_probe,
 	.remove   = ti_dac_remove,
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index d303b19814e7..d3295767a079 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -18,8 +18,7 @@
 #include <linux/iio/iio.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regulator/consumer.h>
 
 enum chip_id {
@@ -384,7 +383,6 @@ static int dac5571_remove(struct i2c_client *i2c)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id dac5571_of_id[] = {
 	{.compatible = "ti,dac5571"},
 	{.compatible = "ti,dac6571"},
@@ -398,7 +396,6 @@ static const struct of_device_id dac5571_of_id[] = {
 	{}
 };
 MODULE_DEVICE_TABLE(of, dac5571_of_id);
-#endif
 
 static const struct i2c_device_id dac5571_id[] = {
 	{"dac5571", single_8bit},
@@ -417,7 +414,7 @@ MODULE_DEVICE_TABLE(i2c, dac5571_id);
 static struct i2c_driver dac5571_driver = {
 	.driver = {
 		   .name = "ti-dac5571",
-		   .of_match_table = of_match_ptr(dac5571_of_id),
+		   .of_match_table = dac5571_of_id,
 	},
 	.probe	  = dac5571_probe,
 	.remove   = dac5571_remove,
diff --git a/drivers/iio/dac/ti-dac7612.c b/drivers/iio/dac/ti-dac7612.c
index 07c9f39d54f1..4c0f4b5e9ff4 100644
--- a/drivers/iio/dac/ti-dac7612.c
+++ b/drivers/iio/dac/ti-dac7612.c
@@ -23,6 +23,14 @@ struct dac7612 {
 	uint16_t cache[2];
 
 	/*
+	 * Lock to protect the state of the device from potential concurrent
+	 * write accesses from userspace. The write operation requires an
+	 * SPI write, then toggling of a GPIO, so the lock aims to protect
+	 * the sanity of the entire sequence of operation.
+	 */
+	struct mutex lock;
+
+	/*
 	 * DMA (thus cache coherency maintenance) requires the
 	 * transfer buffers to live in their own cache lines.
 	 */
@@ -101,9 +109,9 @@ static int dac7612_write_raw(struct iio_dev *iio_dev,
 	if (val == priv->cache[chan->channel])
 		return 0;
 
-	mutex_lock(&iio_dev->mlock);
+	mutex_lock(&priv->lock);
 	ret = dac7612_cmd_single(priv, chan->channel, val);
-	mutex_unlock(&iio_dev->mlock);
+	mutex_unlock(&priv->lock);
 
 	return ret;
 }
@@ -145,6 +153,8 @@ static int dac7612_probe(struct spi_device *spi)
 	iio_dev->num_channels = ARRAY_SIZE(priv->cache);
 	iio_dev->name = spi_get_device_id(spi)->name;
 
+	mutex_init(&priv->lock);
+
 	for (i = 0; i < ARRAY_SIZE(priv->cache); i++) {
 		ret = dac7612_cmd_single(priv, i, 0);
 		if (ret)