Merge tag 'iio-for-4.7a' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/jic23/iio into staging-next

Jonathan writes:

First round of IIO new device support, features and cleanups for the 4.7 cycle.

New core support
* UV light modifier (for intensity)
* UV light index channel type.

New device support
* hp206c barometer and altimeter
  - new driver.
* mcp4131 potentiometer
  - new driver supporting lots of parts from Microchip.
* mma8452
  - FXLS8471Q support
- NXP LPC18XX SOC ADC
  - new driver.
- NXP LPC18XX SOC DAC
  - new driver.
- rockchip_saradc
  - support rk3399
* st accel
  - h3lis331dl support

Staging driver removals
* adis16204
  - obsolete part making it hard to get parts to test the driver in order
    to clean it up.
* adis16220
  - obsolete part making it hard to get the parts test the driver in order
    to clean it up.

Features
* core
  - convenience functions to claim / release direct access to the device.
    Makes more consistent handling of this corner easier. Used in ad7192 driver.
* ak8975
  - power regulator support.
* at91-sama5d2
  - differential channel support.
* mma8452
  - runtime pm support
  - drop device specific autosleep and use the runtime pm one instead.
* ms5611
  - DT bindings
  - oversampling ratio support

Cleanups and minor fixes
* MAINTAINERS
  - Peter got married - hence name change!

* Documentation
  - Fix a typo in in_proximity_raw description.
  - Add some missing docs for iio_buffer_access_funcs.

* Tools
  - update iio_event_monitor names to match new stuff.
  - make generic_buffer look for triggers ending in -trigger as we let these in
  for a number of drivers a long time back and now it is a fairly common
  option.

Drivers
* staging wide
  - convert bare unsigned usage to unsigned int to comply with coding style.
* non staging wide:
  - since boiler plate gpio handling of interrupts has been moved into the
   ACPI core we don't need to include gpio/consumer.h in a load of drivers so
   drop it.
* ad7606
  - fix an endian casting sparse warning.
* ak8975
  - fix a possible unitialized warning from gcc.
  - drop and unused field left over from earlier cleanups
  - fix a missing regulator_disable on exit.
* at91-sama5d2
  - typo and indentation
  - missing IOMEM dependency.
  - cleanup mode register usage by avoidling erasing whole thing when changing
  the sampling frequency.
* bmc150
  - use the core demux and available_scan_masks to simplify buffer handling
  - optimize the transfers in the trigger handler now we have a magic function
  to emulate bulk reads (under circumstances met here).  This matters with some
  rather dumb i2c adapters in particular.
  - use a single regmap_conf for all bus types as they were all the same.
* bmg160
  - use the core demux and available_scan_masks to simplify the buffer handling
  - optimize the transfers in the trigger handler now we have a magic funciton
  to emulate bulk rads (under circumstances met here).
  - drop gpio interrupt probing from the driver (ACPI) as now handled by the
  ACPI core.
* ina2xx-adc
  - update the CALIB register when RShunt changes.
  - fix scale for VShunt - in reality this error canceled out when used.
* isl29028
  - use regmap to retrieve the struct device instead of carrying a second
  copy of it around.
* kxcjk-1013
  - use core demux
  - optimize i2c transfers in the trigger handler.
* mcp4531
  - refactor to use a pointer to access model parameters instead of indexing
    into the array each time.
* mma8452
  - style fixes
  - avoid swtiching to active whenever the config changes
  - add missin i2c_device_id for mma8451
* mpu6050
  - fix possible NULL dereference.
  - fix the name / chip_id used when ACPI used (otherwise reports as NULL).
* ms5611
  - fix a missing regulator_disable that left the regulator on during removal.
* mxc4005
  - drop gpio interrupt handling for ACPI case from driver as the core now
  handles this case.
* st-sensors
  - note that there are only ever a maximum of 3 axis on current st-sensors
  so just allocate a fixed sized buffer big enough for that.
* tpl0102
  - change the i2c_check_functionality condition to bring it inline with other
    IIO users as EOPNOTSUPP.
* tsl2563
  - replace deprecated flush_scheduled_work

Documentation/ABI/testing/sysfs-bus-iio

@@ -1233,7 +1233,7 @@ KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Proximity measurement indicating that some
-		object is near the sensor, usually be observing
+		object is near the sensor, usually by observing
 		reflectivity of infrared or ultrasound emitted.
 		Often these sensors are unit less and as such conversion
 		to SI units is not possible. Higher proximity measurements
@@ -1255,12 +1255,23 @@ Description:
 What:		/sys/.../iio:deviceX/in_intensityY_raw
 What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
 What:		/sys/.../iio:deviceX/in_intensityY_both_raw
+What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
 KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Unit-less light intensity. Modifiers both and ir indicate
 		that measurements contains visible and infrared light
-		components or just infrared light, respectively.
+		components or just infrared light, respectively. Modifier uv indicates
+		that measurements contain ultraviolet light components.
+
+What:		/sys/.../iio:deviceX/in_uvindex_input
+KernelVersion:	4.6
+Contact:	linux-iio@vger.kernel.org
+Description:
+		UV light intensity index measuring the human skin's response to
+		different wavelength of sunlight weighted according to the
+		standardised CIE Erythemal Action Spectrum. UV index values range
+		from 0 (low) to >=11 (extreme).
 
 What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_green_integration_time

Documentation/devicetree/bindings/iio/accel/mma8452.txt

@@ -1,4 +1,4 @@
-Freescale MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC or MMA8653FC
+Freescale MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC or FXLS8471Q
 triaxial accelerometer
 
 Required properties:
@@ -9,6 +9,7 @@ Required properties:
     * "fsl,mma8453"
     * "fsl,mma8652"
     * "fsl,mma8653"
+    * "fsl,fxls8471"
 
   - reg: the I2C address of the chip
 

Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt

@@ -0,0 +1,21 @@
+NXP LPC1850 ADC bindings
+
+Required properties:
+- compatible: Should be "nxp,lpc1850-adc"
+- reg: Offset and length of the register set for the ADC device
+- interrupts: The interrupt number for the ADC device
+- clocks: The root clock of the ADC controller
+- vref-supply: The regulator supply ADC reference voltage
+- resets: phandle to reset controller and line specifier
+
+Example:
+
+adc0: adc@400e3000 {
+	compatible = "nxp,lpc1850-adc";
+	reg = <0x400e3000 0x1000>;
+	interrupts = <17>;
+	clocks = <&ccu1 CLK_APB3_ADC0>;
+	vref-supply = <&reg_vdda>;
+	resets = <&rgu 40>;
+	status = "disabled";
+};

Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt

@@ -1,7 +1,11 @@
 Rockchip Successive Approximation Register (SAR) A/D Converter bindings
 
 Required properties:
-- compatible: Should be "rockchip,saradc" or "rockchip,rk3066-tsadc"
+- compatible: should be "rockchip,<name>-saradc" or "rockchip,rk3066-tsadc"
+   - "rockchip,saradc": for rk3188, rk3288
+   - "rockchip,rk3066-tsadc": for rk3036
+   - "rockchip,rk3399-saradc": for rk3399
+
 - reg: physical base address of the controller and length of memory mapped
        region.
 - interrupts: The interrupt number to the cpu. The interrupt specifier format

Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt

@@ -0,0 +1,20 @@
+NXP LPC1850 DAC bindings
+
+Required properties:
+- compatible: Should be "nxp,lpc1850-dac"
+- reg: Offset and length of the register set for the ADC device
+- interrupts: The interrupt number for the ADC device
+- clocks: The root clock of the ADC controller
+- vref-supply: The regulator supply ADC reference voltage
+- resets: phandle to reset controller and line specifier
+
+Example:
+dac: dac@400e1000 {
+	compatible = "nxp,lpc1850-dac";
+	reg = <0x400e1000 0x1000>;
+	interrupts = <0>;
+	clocks = <&ccu1 CLK_APB3_DAC>;
+	vref-supply = <&reg_vdda>;
+	resets = <&rgu 42>;
+	status = "disabled";
+};

Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt

@@ -8,11 +8,13 @@ Required properties:
 Optional properties:
 
   - gpios : should be device tree identifier of the magnetometer DRDY pin
+  - vdd-supply: an optional regulator that needs to be on to provide VDD
 
 Example:
 
 ak8975@0c {
         compatible = "asahi-kasei,ak8975";
         reg = <0x0c>;
         gpios = <&gpj0 7 0>;
+        vdd-supply = <&ldo_3v3_gnss>;
 };

Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt

@@ -0,0 +1,84 @@
+* Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer
+  driver
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+        Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Required properties:
+	- compatible:  	Must be one of the following, depending on the
+			model:
+			"microchip,mcp4131-502"
+			"microchip,mcp4131-103"
+			"microchip,mcp4131-503"
+			"microchip,mcp4131-104"
+			"microchip,mcp4132-502"
+			"microchip,mcp4132-103"
+			"microchip,mcp4132-503"
+			"microchip,mcp4132-104"
+			"microchip,mcp4141-502"
+			"microchip,mcp4141-103"
+			"microchip,mcp4141-503"
+			"microchip,mcp4141-104"
+			"microchip,mcp4142-502"
+			"microchip,mcp4142-103"
+			"microchip,mcp4142-503"
+			"microchip,mcp4142-104"
+			"microchip,mcp4151-502"
+			"microchip,mcp4151-103"
+			"microchip,mcp4151-503"
+			"microchip,mcp4151-104"
+			"microchip,mcp4152-502"
+			"microchip,mcp4152-103"
+			"microchip,mcp4152-503"
+			"microchip,mcp4152-104"
+			"microchip,mcp4161-502"
+			"microchip,mcp4161-103"
+			"microchip,mcp4161-503"
+			"microchip,mcp4161-104"
+			"microchip,mcp4162-502"
+			"microchip,mcp4162-103"
+			"microchip,mcp4162-503"
+			"microchip,mcp4162-104"
+			"microchip,mcp4231-502"
+			"microchip,mcp4231-103"
+			"microchip,mcp4231-503"
+			"microchip,mcp4231-104"
+			"microchip,mcp4232-502"
+			"microchip,mcp4232-103"
+			"microchip,mcp4232-503"
+			"microchip,mcp4232-104"
+			"microchip,mcp4241-502"
+			"microchip,mcp4241-103"
+			"microchip,mcp4241-503"
+			"microchip,mcp4241-104"
+			"microchip,mcp4242-502"
+			"microchip,mcp4242-103"
+			"microchip,mcp4242-503"
+			"microchip,mcp4242-104"
+			"microchip,mcp4251-502"
+			"microchip,mcp4251-103"
+			"microchip,mcp4251-503"
+			"microchip,mcp4251-104"
+			"microchip,mcp4252-502"
+			"microchip,mcp4252-103"
+			"microchip,mcp4252-503"
+			"microchip,mcp4252-104"
+			"microchip,mcp4261-502"
+			"microchip,mcp4261-103"
+			"microchip,mcp4261-503"
+			"microchip,mcp4261-104"
+			"microchip,mcp4262-502"
+			"microchip,mcp4262-103"
+			"microchip,mcp4262-503"
+			"microchip,mcp4262-104"
+
+Example:
+mcp4131: mcp4131@0 {
+	compatible = "mcp4131-502";
+	reg = <0>;
+	spi-max-frequency = <500000>;
+};

Documentation/devicetree/bindings/iio/pressure/ms5611.txt

@@ -0,0 +1,19 @@
+MEAS ms5611 family pressure sensors
+
+Pressure sensors from MEAS Switzerland with SPI and I2C bus interfaces.
+
+Required properties:
+- compatible: "meas,ms5611" or "meas,ms5607"
+- reg: the I2C address or SPI chip select the device will respond to
+
+Optional properties:
+- vdd-supply: an optional regulator that needs to be on to provide VDD
+  power to the sensor.
+
+Example:
+
+ms5607@77 {
+	compatible = "meas,ms5607";
+	reg = <0x77>;
+	vdd-supply = <&ldo_3v3_gnss>;
+};

Documentation/devicetree/bindings/iio/st-sensors.txt

@@ -37,6 +37,7 @@ Accelerometers:
 - st,lsm330-accel
 - st,lsm303agr-accel
 - st,lis2dh12-accel
+- st,h3lis331dl-accel
 
 Gyroscopes:
 - st,l3g4200d-gyro

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -141,6 +141,7 @@ lsi	LSI Corp. (LSI Logic)
 lltc	Linear Technology Corporation
 marvell	Marvell Technology Group Ltd.
 maxim	Maxim Integrated Products
+meas	Measurement Specialties
 mediatek	MediaTek Inc.
 melexis	Melexis N.V.
 merrii	Merrii Technology Co., Ltd.

MAINTAINERS

@@ -5538,7 +5538,7 @@ IIO SUBSYSTEM AND DRIVERS
 M:	Jonathan Cameron <jic23@kernel.org>
 R:	Hartmut Knaack <knaack.h@gmx.de>
 R:	Lars-Peter Clausen <lars@metafoo.de>
-R:	Peter Meerwald <pmeerw@pmeerw.net>
+R:	Peter Meerwald-Stadler <pmeerw@pmeerw.net>
 L:	linux-iio@vger.kernel.org
 S:	Maintained
 F:	drivers/iio/

drivers/iio/accel/Kconfig

@@ -64,7 +64,7 @@ config IIO_ST_ACCEL_3AXIS
 	help
 	  Say yes here to build support for STMicroelectronics accelerometers:
 	  LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,
-	  LIS331DLH, LSM303DL, LSM303DLM, LSM330, LIS2DH12.
+	  LIS331DLH, LSM303DL, LSM303DLM, LSM330, LIS2DH12, H3LIS331DL.
 
 	  This driver can also be built as a module. If so, these modules
 	  will be created:
@@ -143,7 +143,8 @@ config MMA8452
 	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for the following Freescale 3-axis
-	  accelerometers: MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC.
+	  accelerometers: MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC,
+	  FXLS8471Q.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called mma8452.

drivers/iio/accel/bmc150-accel-core.c

@@ -25,7 +25,6 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
-#include <linux/gpio/consumer.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/iio/iio.h>
@@ -138,6 +137,7 @@ enum bmc150_accel_axis {
 	AXIS_X,
 	AXIS_Y,
 	AXIS_Z,
+	AXIS_MAX,
 };
 
 enum bmc150_power_modes {
@@ -246,11 +246,12 @@ static const struct {
 				       {500000, BMC150_ACCEL_SLEEP_500_MS},
 				       {1000000, BMC150_ACCEL_SLEEP_1_SEC} };
 
-static const struct regmap_config bmc150_i2c_regmap_conf = {
+const struct regmap_config bmc150_regmap_conf = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = 0x3f,
 };
+EXPORT_SYMBOL_GPL(bmc150_regmap_conf);
 
 static int bmc150_accel_set_mode(struct bmc150_accel_data *data,
 				 enum bmc150_power_modes mode,
@@ -988,6 +989,7 @@ static const struct iio_event_spec bmc150_accel_event = {
 		.realbits = (bits),					\
 		.storagebits = 16,					\
 		.shift = 16 - (bits),					\
+		.endianness = IIO_LE,					\
 	},								\
 	.event_spec = &bmc150_accel_event,				\
 	.num_event_specs = 1						\
@@ -1104,27 +1106,23 @@ static const struct iio_info bmc150_accel_info_fifo = {
 	.driver_module		= THIS_MODULE,
 };
 
+static const unsigned long bmc150_accel_scan_masks[] = {
+					BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z),
+					0};
+
 static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
-	int bit, ret, i = 0;
-	unsigned int raw_val;
+	int ret;
 
 	mutex_lock(&data->mutex);
-	for_each_set_bit(bit, indio_dev->active_scan_mask,
-			 indio_dev->masklength) {
-		ret = regmap_bulk_read(data->regmap,
-				       BMC150_ACCEL_AXIS_TO_REG(bit), &raw_val,
-				       2);
-		if (ret < 0) {
-			mutex_unlock(&data->mutex);
-			goto err_read;
-		}
-		data->buffer[i++] = raw_val;
-	}
+	ret = regmap_bulk_read(data->regmap, BMC150_ACCEL_REG_XOUT_L,
+			       data->buffer, AXIS_MAX * 2);
 	mutex_unlock(&data->mutex);
+	if (ret < 0)
+		goto err_read;
 
 	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
 					   pf->timestamp);
@@ -1574,6 +1572,7 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
 	indio_dev->channels = data->chip_info->channels;
 	indio_dev->num_channels = data->chip_info->num_channels;
 	indio_dev->name = name ? name : data->chip_info->name;
+	indio_dev->available_scan_masks = bmc150_accel_scan_masks;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &bmc150_accel_info;
 

drivers/iio/accel/bmc150-accel-i2c.c

@@ -28,11 +28,6 @@
 
 #include "bmc150-accel.h"
 
-static const struct regmap_config bmc150_i2c_regmap_conf = {
-	.reg_bits = 8,
-	.val_bits = 8,
-};
-
 static int bmc150_accel_probe(struct i2c_client *client,
 			      const struct i2c_device_id *id)
 {
@@ -43,7 +38,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
 		i2c_check_functionality(client->adapter,
 					I2C_FUNC_SMBUS_READ_I2C_BLOCK);
 
-	regmap = devm_regmap_init_i2c(client, &bmc150_i2c_regmap_conf);
+	regmap = devm_regmap_init_i2c(client, &bmc150_regmap_conf);
 	if (IS_ERR(regmap)) {
 		dev_err(&client->dev, "Failed to initialize i2c regmap\n");
 		return PTR_ERR(regmap);

drivers/iio/accel/bmc150-accel-spi.c

@@ -25,18 +25,12 @@
 
 #include "bmc150-accel.h"
 
-static const struct regmap_config bmc150_spi_regmap_conf = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = 0x3f,
-};
-
 static int bmc150_accel_probe(struct spi_device *spi)
 {
 	struct regmap *regmap;
 	const struct spi_device_id *id = spi_get_device_id(spi);
 
-	regmap = devm_regmap_init_spi(spi, &bmc150_spi_regmap_conf);
+	regmap = devm_regmap_init_spi(spi, &bmc150_regmap_conf);
 	if (IS_ERR(regmap)) {
 		dev_err(&spi->dev, "Failed to initialize spi regmap\n");
 		return PTR_ERR(regmap);

drivers/iio/accel/bmc150-accel.h

@@ -16,5 +16,6 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
 			    const char *name, bool block_supported);
 int bmc150_accel_core_remove(struct device *dev);
 extern const struct dev_pm_ops bmc150_accel_pm_ops;
+extern const struct regmap_config bmc150_regmap_conf;
 
 #endif  /* _BMC150_ACCEL_H_ */