Merge tag 'staging-4.13-rc1' of git://git.kernel.org/pub/scm/linux/ke…

…rnel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here's the large set of staging and iio driver patches for 4.13-rc1.

  After over 500 patches, we removed about 200 more lines of code than
  we added, not great, but we added some new IIO drivers for unsupported
  hardware, so it's an overall win.

  Also here are lots of small fixes, and some tty core api additions
  (with the tty maintainer's ack) for the speakup drivers, those are
  finally getting some much needed cleanups and are looking much better
  now than before. Full details in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (529 commits)
  staging: lustre: replace kmalloc with kmalloc_array
  Staging: ion: fix code style warning from NULL comparisons
  staging: fsl-mc: make dprc.h header private
  staging: fsl-mc: move mc-cmd.h contents in the public header
  staging: fsl-mc: move mc-sys.h contents in the public header
  staging: fsl-mc: fix a few implicit includes
  staging: fsl-mc: remove dpmng API files
  staging: fsl-mc: move rest of mc-bus.h to private header
  staging: fsl-mc: move couple of definitions to public header
  staging: fsl-mc: move irq domain creation prototype to public header
  staging: fsl-mc: turn several exported functions static
  staging: fsl-mc: delete prototype of unimplemented function
  staging: fsl-mc: delete duplicated function prototypes
  staging: fsl-mc: decouple the mc-bus public headers from dprc.h
  staging: fsl-mc: drop useless #includes
  staging: fsl-mc: be consistent when checking strcmp() return
  staging: fsl-mc: move comparison before strcmp() call
  staging: speakup: make function ser_to_dev static
  staging: ks7010: fix spelling mistake: "errror" -> "error"
  staging: rtl8192e: fix spelling mistake: "respose" -> "response"
  ...

Documentation/ABI/testing/sysfs-bus-iio

@@ -1425,6 +1425,17 @@ Description:
 		guarantees that the hardware fifo is flushed to the device
 		buffer.
 
+What:		/sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
+KernelVersion:	4.12
+Contact:	[email protected]
+Description:
+		A read/write property to provide capability to delay reporting of
+		samples till a timeout is reached. This allows host processors to
+		sleep, while the sensor is storing samples in its internal fifo.
+		The maximum timeout in seconds can be specified by setting
+		hwfifo_timeout.The current delay can be read by reading
+		hwfifo_timeout. A value of 0 means that there is no timeout.
+
 What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
 KernelVersion: 4.2
 Contact:	[email protected]

Documentation/ABI/testing/sysfs-bus-iio-meas-spec

@@ -5,4 +5,3 @@ Description:
                 Reading returns either '1' or '0'. '1' means that the
                 battery level supplied to sensor is below 2.25V.
                 This ABI is available for tsys02d, htu21, ms8607
-		This ABI is available for htu21, ms8607

Documentation/ABI/testing/sysfs-bus-iio-timer-stm32

@@ -16,6 +16,54 @@ Description:
 		- "OC2REF"    : OC2REF signal is used as trigger output.
 		- "OC3REF"    : OC3REF signal is used as trigger output.
 		- "OC4REF"    : OC4REF signal is used as trigger output.
+		Additional modes (on TRGO2 only):
+		- "OC5REF"    : OC5REF signal is used as trigger output.
+		- "OC6REF"    : OC6REF signal is used as trigger output.
+		- "compare_pulse_OC4REF":
+		  OC4REF rising or falling edges generate pulses.
+		- "compare_pulse_OC6REF":
+		  OC6REF rising or falling edges generate pulses.
+		- "compare_pulse_OC4REF_r_or_OC6REF_r":
+		  OC4REF or OC6REF rising edges generate pulses.
+		- "compare_pulse_OC4REF_r_or_OC6REF_f":
+		  OC4REF rising or OC6REF falling edges generate pulses.
+		- "compare_pulse_OC5REF_r_or_OC6REF_r":
+		  OC5REF or OC6REF rising edges generate pulses.
+		- "compare_pulse_OC5REF_r_or_OC6REF_f":
+		  OC5REF rising or OC6REF falling edges generate pulses.
+
+		+-----------+   +-------------+            +---------+
+		| Prescaler +-> | Counter     |        +-> | Master  | TRGO(2)
+		+-----------+   +--+--------+-+        |-> | Control +-->
+		                   |        |          ||  +---------+
+		                +--v--------+-+ OCxREF ||  +---------+
+		                | Chx compare +----------> | Output  | ChX
+		                +-----------+-+         |  | Control +-->
+		                      .     |           |  +---------+
+		                      .     |           |    .
+		                +-----------v-+ OC6REF  |    .
+		                | Ch6 compare +---------+>
+		                +-------------+
+
+		Example with: "compare_pulse_OC4REF_r_or_OC6REF_r":
+
+		                X
+		              X   X
+		            X .   . X
+		          X   .   .   X
+		        X     .   .     X
+		count X .     .   .     . X
+		        .     .   .     .
+		        .     .   .     .
+		        +---------------+
+		OC4REF  |     .   .     |
+		      +-+     .   .     +-+
+		        .     +---+     .
+		OC6REF  .     |   |     .
+		      +-------+   +-------+
+		        +-+   +-+
+		TRGO2   | |   | |
+		      +-+ +---+ +---------+
 
 What:		/sys/bus/iio/devices/triggerX/master_mode
 KernelVersion:	4.11
@@ -90,3 +138,18 @@ Description:
 			Counting is enabled on rising edge of the connected
 			trigger, and remains enabled for the duration of this
 			selected mode.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_count_trigger_mode_available
+KernelVersion:	4.13
+Contact:	[email protected]
+Description:
+		Reading returns the list possible trigger modes.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_count0_trigger_mode
+KernelVersion:	4.13
+Contact:	[email protected]
+Description:
+		Configure the device counter trigger mode
+		counting direction is set by in_count0_count_direction
+		attribute and the counter is clocked by the connected trigger
+		rising edges.

Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt

@@ -2,6 +2,8 @@
 
 Required properties:
 - compatible:	depending on the SoC this should be one of:
+			- "amlogic,meson8-saradc" for Meson8
+			- "amlogic,meson8b-saradc" for Meson8b
 			- "amlogic,meson-gxbb-saradc" for GXBB
 			- "amlogic,meson-gxl-saradc" for GXL
 			- "amlogic,meson-gxm-saradc" for GXM

Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt

@@ -1,4 +1,4 @@
-* Renesas RCar GyroADC device driver
+* Renesas R-Car GyroADC device driver
 
 The GyroADC block is a reduced SPI block with up to 8 chipselect lines,
 which supports the SPI protocol of a selected few SPI ADCs. The SPI ADCs
@@ -16,8 +16,7 @@ Required properties:
 - clocks:	References to all the clocks specified in the clock-names
 		property as specified in
 		Documentation/devicetree/bindings/clock/clock-bindings.txt.
-- clock-names:	Shall contain "fck" and "if". The "fck" is the GyroADC block
-		clock, the "if" is the interface clock.
+- clock-names:	Shall contain "fck". The "fck" is the GyroADC block clock.
 - power-domains: Must contain a reference to the PM domain, if available.
 - #address-cells: Should be <1> (setting for the subnodes) for all ADCs
 		except for "fujitsu,mb88101a". Should be <0> (setting for
@@ -75,8 +74,8 @@ Example:
 	adc@e6e54000 {
 		compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
 		reg = <0 0xe6e54000 0 64>;
-		clocks = <&mstp9_clks R8A7791_CLK_GYROADC>, <&clk_65m>;
-		clock-names = "fck", "if";
+		clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+		clock-names = "fck";
 		power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
 
 		pinctrl-0 = <&adc_pins>;

Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt

@@ -21,11 +21,19 @@ own configurable sequence and trigger:
 Contents of a stm32 adc root node:
 -----------------------------------
 Required properties:
-- compatible: Should be "st,stm32f4-adc-core".
+- compatible: Should be one of:
+  "st,stm32f4-adc-core"
+  "st,stm32h7-adc-core"
 - reg: Offset and length of the ADC block register set.
 - interrupts: Must contain the interrupt for ADC block.
-- clocks: Clock for the analog circuitry (common to all ADCs).
-- clock-names: Must be "adc".
+- clocks: Core can use up to two clocks, depending on part used:
+  - "adc" clock: for the analog circuitry, common to all ADCs.
+    It's required on stm32f4.
+    It's optional on stm32h7.
+  - "bus" clock: for registers access, common to all ADCs.
+    It's not present on stm32f4.
+    It's required on stm32h7.
+- clock-names: Must be "adc" and/or "bus" depending on part used.
 - interrupt-controller: Identifies the controller node as interrupt-parent
 - vref-supply: Phandle to the vref input analog reference voltage.
 - #interrupt-cells = <1>;
@@ -42,14 +50,18 @@ An ADC block node should contain at least one subnode, representing an
 ADC instance available on the machine.
 
 Required properties:
-- compatible: Should be "st,stm32f4-adc".
+- compatible: Should be one of:
+  "st,stm32f4-adc"
+  "st,stm32h7-adc"
 - reg: Offset of ADC instance in ADC block (e.g. may be 0x0, 0x100, 0x200).
-- clocks: Input clock private to this ADC instance.
+- clocks: Input clock private to this ADC instance. It's required only on
+  stm32f4, that has per instance clock input for registers access.
 - interrupt-parent: Phandle to the parent interrupt controller.
 - interrupts: IRQ Line for the ADC (e.g. may be 0 for adc@0, 1 for adc@100 or
   2 for adc@200).
 - st,adc-channels: List of single-ended channels muxed for this ADC.
-  It can have up to 16 channels, numbered from 0 to 15 (resp. for in0..in15).
+  It can have up to 16 channels on stm32f4 or 20 channels on stm32h7, numbered
+  from 0 to 15 or 19 (resp. for in0..in15 or in0..in19).
 - #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
   Documentation/devicetree/bindings/iio/iio-bindings.txt
 
@@ -58,7 +70,9 @@ Optional properties:
   See ../../dma/dma.txt for details.
 - dma-names: Must be "rx" when dmas property is being used.
 - assigned-resolution-bits: Resolution (bits) to use for conversions. Must
-  match device available resolutions (e.g. can be 6, 8, 10 or 12 on stm32f4).
+  match device available resolutions:
+  * can be 6, 8, 10 or 12 on stm32f4
+  * can be 8, 10, 12, 14 or 16 on stm32h7
   Default is maximum resolution if unset.
 
 Example:

Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt

@@ -0,0 +1,19 @@
+* Texas Instruments' ADC084S021
+
+Required properties:
+ - compatible        : Must be "ti,adc084s021"
+ - reg               : SPI chip select number for the device
+ - vref-supply       : The regulator supply for ADC reference voltage
+ - spi-cpol          : Per spi-bus bindings
+ - spi-cpha          : Per spi-bus bindings
+ - spi-max-frequency : Per spi-bus bindings
+
+Example:
+adc@0 {
+	compatible = "ti,adc084s021";
+	reg = <0>;
+	vref-supply = <&adc_vref>;
+	spi-cpol;
+	spi-cpha;
+	spi-max-frequency = <16000000>;
+};

Documentation/devicetree/bindings/iio/adc/ti-adc108s102.txt

@@ -0,0 +1,18 @@
+* Texas Instruments' ADC108S102 and ADC128S102 ADC chip
+
+Required properties:
+ - compatible: Should be "ti,adc108s102"
+ - reg: spi chip select number for the device
+ - vref-supply: The regulator supply for ADC reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+	compatible = "ti,adc108s102";
+	reg = <0>;
+	vref-supply = <&vdd_supply>;
+	spi-max-frequency = <1000000>;
+};

Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt

@@ -13,7 +13,8 @@ Optional properties:
   "data ready" (valid values: 1 or 2).
 - interrupt-parent: should be the phandle for the interrupt controller
 - interrupts: interrupt mapping for IRQ. It should be configured with
-  flags IRQ_TYPE_LEVEL_HIGH or IRQ_TYPE_EDGE_RISING.
+  flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+  IRQ_TYPE_EDGE_FALLING.
 
   Refer to interrupt-controller/interrupts.txt for generic interrupt
   client node bindings.

Documentation/devicetree/bindings/trivial-devices.txt

@@ -55,6 +55,7 @@ gmt,g751		G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire In
 infineon,slb9635tt	Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
 infineon,slb9645tt	Infineon SLB9645 I2C TPM (new protocol, max 400khz)
 isil,isl29028		Intersil ISL29028 Ambient Light and Proximity Sensor
+isil,isl29030		Intersil ISL29030 Ambient Light and Proximity Sensor
 maxim,ds1050		5 Bit Programmable, Pulse-Width Modulator
 maxim,max1237		Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
 maxim,max6625		9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface

MAINTAINERS

@@ -10553,6 +10553,7 @@ M:	Laurentiu Tudor <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	drivers/staging/fsl-mc/
+F:	Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
 
 QT1010 MEDIA DRIVER
 M:	Antti Palosaari <[email protected]>

drivers/iio/accel/hid-sensor-accel-3d.c

@@ -347,7 +347,7 @@ static int accel_3d_parse_report(struct platform_device *pdev,
 static int hid_accel_3d_probe(struct platform_device *pdev)
 {
 	int ret = 0;
-	static const char *name;
+	const char *name;
 	struct iio_dev *indio_dev;
 	struct accel_3d_state *accel_state;
 	const struct iio_chan_spec *channel_spec;

drivers/iio/accel/mma9551.c

@@ -27,7 +27,6 @@
 
 #define MMA9551_DRV_NAME		"mma9551"
 #define MMA9551_IRQ_NAME		"mma9551_event"
-#define MMA9551_GPIO_NAME		"mma9551_int"
 #define MMA9551_GPIO_COUNT		4
 
 /* Tilt application (inclination in IIO terms). */
@@ -418,8 +417,7 @@ static int mma9551_gpio_probe(struct iio_dev *indio_dev)
 	struct device *dev = &data->client->dev;
 
 	for (i = 0; i < MMA9551_GPIO_COUNT; i++) {
-		gpio = devm_gpiod_get_index(dev, MMA9551_GPIO_NAME, i,
-					    GPIOD_IN);
+		gpio = devm_gpiod_get_index(dev, NULL, i, GPIOD_IN);
 		if (IS_ERR(gpio)) {
 			dev_err(dev, "acpi gpio get index failed\n");
 			return PTR_ERR(gpio);

drivers/iio/accel/st_accel_core.c

@@ -710,6 +710,8 @@ static const struct iio_trigger_ops st_accel_trigger_ops = {
 int st_accel_common_probe(struct iio_dev *indio_dev)
 {
 	struct st_sensor_data *adata = iio_priv(indio_dev);
+	struct st_sensors_platform_data *pdata =
+		(struct st_sensors_platform_data *)adata->dev->platform_data;
 	int irq = adata->get_irq_data_ready(indio_dev);
 	int err;
 
@@ -736,9 +738,8 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
 					&adata->sensor_settings->fs.fs_avl[0];
 	adata->odr = adata->sensor_settings->odr.odr_avl[0].hz;
 
-	if (!adata->dev->platform_data)
-		adata->dev->platform_data =
-			(struct st_sensors_platform_data *)&default_accel_pdata;
+	if (!pdata)
+		pdata = (struct st_sensors_platform_data *)&default_accel_pdata;
 
 	err = st_sensors_init_sensor(indio_dev, adata->dev->platform_data);
 	if (err < 0)

drivers/iio/accel/st_accel_spi.c

@@ -47,15 +47,11 @@ static int st_accel_spi_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id st_accel_id_table[] = {
-	{ LSM303DLH_ACCEL_DEV_NAME },
-	{ LSM303DLHC_ACCEL_DEV_NAME },
 	{ LIS3DH_ACCEL_DEV_NAME },
 	{ LSM330D_ACCEL_DEV_NAME },
 	{ LSM330DL_ACCEL_DEV_NAME },
 	{ LSM330DLC_ACCEL_DEV_NAME },
 	{ LIS331DLH_ACCEL_DEV_NAME },
-	{ LSM303DL_ACCEL_DEV_NAME },
-	{ LSM303DLM_ACCEL_DEV_NAME },
 	{ LSM330_ACCEL_DEV_NAME },
 	{ LSM303AGR_ACCEL_DEV_NAME },
 	{ LIS2DH12_ACCEL_DEV_NAME },

drivers/iio/adc/Kconfig

@@ -679,6 +679,18 @@ config TI_ADC0832
 	  This driver can also be built as a module. If so, the module will be
 	  called ti-adc0832.
 
+config TI_ADC084S021
+	tristate "Texas Instruments ADC084S021"
+	depends on SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  If you say yes here you get support for Texas Instruments ADC084S021
+	  chips.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called ti-adc084s021.
+
 config TI_ADC12138
 	tristate "Texas Instruments ADC12130/ADC12132/ADC12138"
 	depends on SPI
@@ -691,6 +703,18 @@ config TI_ADC12138
 	  This driver can also be built as a module. If so, the module will be
 	  called ti-adc12138.
 
+config TI_ADC108S102
+	tristate "Texas Instruments ADC108S102 and ADC128S102 driver"
+	depends on SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  Say yes here to build support for Texas Instruments ADC108S102 and
+	  ADC128S102 ADC.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called ti-adc108s102.
+
 config TI_ADC128S052
 	tristate "Texas Instruments ADC128S052/ADC122S021/ADC124S021"
 	depends on SPI

drivers/iio/adc/Makefile

@@ -62,7 +62,9 @@ obj-$(CONFIG_STM32_ADC_CORE) += stm32-adc-core.o
 obj-$(CONFIG_STM32_ADC) += stm32-adc.o
 obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
 obj-$(CONFIG_TI_ADC0832) += ti-adc0832.o
+obj-$(CONFIG_TI_ADC084S021) += ti-adc084s021.o
 obj-$(CONFIG_TI_ADC12138) += ti-adc12138.o
+obj-$(CONFIG_TI_ADC108S102) += ti-adc108s102.o
 obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o
 obj-$(CONFIG_TI_ADC161S626) += ti-adc161s626.o
 obj-$(CONFIG_TI_ADS1015) += ti-ads1015.o

drivers/iio/adc/ad7791.c

@@ -272,11 +272,9 @@ static ssize_t ad7791_write_frequency(struct device *dev,
 	struct ad7791_state *st = iio_priv(indio_dev);
 	int i, ret;
 
-	for (i = 0; i < ARRAY_SIZE(ad7791_sample_freq_avail); i++)
-		if (sysfs_streq(ad7791_sample_freq_avail[i], buf))
-			break;
-	if (i == ARRAY_SIZE(ad7791_sample_freq_avail))
-		return -EINVAL;
+	i = sysfs_match_string(ad7791_sample_freq_avail, buf);
+	if (i < 0)
+		return i;
 
 	ret = iio_device_claim_direct_mode(indio_dev);
 	if (ret)