Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree update from Greg KH:
 "Here's the large staging tree merge for 3.11-rc1

  Huge thing here is the Lustre client code.  Unfortunatly, due to it
  not building properly on a wide variety of different architectures
  (this was production code???), it is currently disabled from the build
  so as to not annoy people.

  Other than Lustre, there are loads of comedi patches, working to clean
  up that subsystem, iio updates and new drivers, and a load of cleanups
  from the OPW applicants in their quest to get a summer internship.

  All of these have been in the linux-next releases for a while (hence
  the Lustre code being disabled)"

Fixed up trivial conflict in drivers/staging/serqt_usb2/serqt_usb2.c due
to independent renamings in the staging driver cleanup and the USB
tree..

* tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (868 commits)
  Revert "Revert "Revert "staging/lustre: drop CONFIG_BROKEN dependency"""
  staging: rtl8192u: fix line length in r819xU_phy.h
  staging: rtl8192u: rename variables in r819xU_phy.h
  staging: rtl8192u: fix comments in r819xU_phy.h
  staging: rtl8192u: fix whitespace in r819xU_phy.h
  staging: rtl8192u: fix newlines in r819xU_phy.c
  staging: comedi: unioxx5: use comedi_alloc_spriv()
  staging: comedi: unioxx5: fix unioxx5_detach()
  silicom: checkpatch: errors caused by macros
  Staging: silicom: remove the board_t typedef in bpctl_mod.c
  Staging: silicom: capitalize labels in the bp_media_type enum
  Staging: silicom: remove bp_media_type enum typedef
  staging: rtl8192u: replace msleep(1) with usleep_range() in r819xU_phy.c
  staging: rtl8192u: rename dwRegRead and rtStatus in r819xU_phy.c
  staging: rtl8192u: replace __FUNCTION__ in r819xU_phy.c
  staging: rtl8192u: limit line size in r819xU_phy.c
  zram: allow request end to coincide with disksize
  staging: drm/imx: use generic irq chip unused field to block out invalid irqs
  staging: drm/imx: use generic irqchip
  staging: drm/imx: ipu-dmfc: use defines for ipu channel numbers
  ...

Documentation/ABI/testing/sysfs-bus-iio

@@ -690,45 +690,45 @@ Description:
 		Actually start the buffer capture up.  Will start trigger
 		if first device and appropriate.
 
-What:		/sys/bus/iio/devices/iio:deviceX/buffer/scan_elements
+What:		/sys/bus/iio/devices/iio:deviceX/scan_elements
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Directory containing interfaces for elements that will be
 		captured for a single triggered sample set in the buffer.
 
-What:		/sys/.../buffer/scan_elements/in_accel_x_en
-What:		/sys/.../buffer/scan_elements/in_accel_y_en
-What:		/sys/.../buffer/scan_elements/in_accel_z_en
-What:		/sys/.../buffer/scan_elements/in_anglvel_x_en
-What:		/sys/.../buffer/scan_elements/in_anglvel_y_en
-What:		/sys/.../buffer/scan_elements/in_anglvel_z_en
-What:		/sys/.../buffer/scan_elements/in_magn_x_en
-What:		/sys/.../buffer/scan_elements/in_magn_y_en
-What:		/sys/.../buffer/scan_elements/in_magn_z_en
-What:		/sys/.../buffer/scan_elements/in_timestamp_en
-What:		/sys/.../buffer/scan_elements/in_voltageY_supply_en
-What:		/sys/.../buffer/scan_elements/in_voltageY_en
-What:		/sys/.../buffer/scan_elements/in_voltageY-voltageZ_en
-What:		/sys/.../buffer/scan_elements/in_incli_x_en
-What:		/sys/.../buffer/scan_elements/in_incli_y_en
-What:		/sys/.../buffer/scan_elements/in_pressureY_en
-What:		/sys/.../buffer/scan_elements/in_pressure_en
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_x_en
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_y_en
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_z_en
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_x_en
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_y_en
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_z_en
+What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_en
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_en
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
+What:		/sys/.../iio:deviceX/scan_elements/in_incli_x_en
+What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_en
+What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_en
+What:		/sys/.../iio:deviceX/scan_elements/in_pressure_en
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Scan element control for triggered data capture.
 
-What:		/sys/.../buffer/scan_elements/in_accel_type
-What:		/sys/.../buffer/scan_elements/in_anglvel_type
-What:		/sys/.../buffer/scan_elements/in_magn_type
-What:		/sys/.../buffer/scan_elements/in_incli_type
-What:		/sys/.../buffer/scan_elements/in_voltageY_type
-What:		/sys/.../buffer/scan_elements/in_voltage_type
-What:		/sys/.../buffer/scan_elements/in_voltageY_supply_type
-What:		/sys/.../buffer/scan_elements/in_timestamp_type
-What:		/sys/.../buffer/scan_elements/in_pressureY_type
-What:		/sys/.../buffer/scan_elements/in_pressure_type
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_type
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_type
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_type
+What:		/sys/.../iio:deviceX/scan_elements/in_incli_type
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_type
+What:		/sys/.../iio:deviceX/scan_elements/in_voltage_type
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
+What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_type
+What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_type
+What:		/sys/.../iio:deviceX/scan_elements/in_pressure_type
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -752,29 +752,29 @@ Description:
 		For other storage combinations this attribute will be extended
 		appropriately.
 
-What:		/sys/.../buffer/scan_elements/in_accel_type_available
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_type_available
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If the type parameter can take one of a small set of values,
 		this attribute lists them.
 
-What:		/sys/.../buffer/scan_elements/in_voltageY_index
-What:		/sys/.../buffer/scan_elements/in_voltageY_supply_index
-What:		/sys/.../buffer/scan_elements/in_accel_x_index
-What:		/sys/.../buffer/scan_elements/in_accel_y_index
-What:		/sys/.../buffer/scan_elements/in_accel_z_index
-What:		/sys/.../buffer/scan_elements/in_anglvel_x_index
-What:		/sys/.../buffer/scan_elements/in_anglvel_y_index
-What:		/sys/.../buffer/scan_elements/in_anglvel_z_index
-What:		/sys/.../buffer/scan_elements/in_magn_x_index
-What:		/sys/.../buffer/scan_elements/in_magn_y_index
-What:		/sys/.../buffer/scan_elements/in_magn_z_index
-What:		/sys/.../buffer/scan_elements/in_incli_x_index
-What:		/sys/.../buffer/scan_elements/in_incli_y_index
-What:		/sys/.../buffer/scan_elements/in_timestamp_index
-What:		/sys/.../buffer/scan_elements/in_pressureY_index
-What:		/sys/.../buffer/scan_elements/in_pressure_index
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_index
+What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_x_index
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_y_index
+What:		/sys/.../iio:deviceX/scan_elements/in_accel_z_index
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
+What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_x_index
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_y_index
+What:		/sys/.../iio:deviceX/scan_elements/in_magn_z_index
+What:		/sys/.../iio:deviceX/scan_elements/in_incli_x_index
+What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_index
+What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_index
+What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_index
+What:		/sys/.../iio:deviceX/scan_elements/in_pressure_index
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:

Documentation/devicetree/bindings/iio/dac/ad7303.txt

+Analog Devices AD7303 DAC device driver
+
+Required properties:
+	- compatible: Must be "adi,ad7303"
+	- reg: SPI chip select number for the device
+	- spi-max-frequency: Max SPI frequency to use (< 30000000)
+	- Vdd-supply: Phandle to the Vdd power supply
+
+Optional properties:
+	- REF-supply: Phandle to the external reference voltage supply. This should
+	  only be set if there is an external reference voltage connected to the REF
+	  pin. If the property is not set Vdd/2 is used as the reference voltage.
+
+Example:
+
+		ad7303@4 {
+			compatible = "adi,ad7303";
+			reg = <4>;
+			spi-max-frequency = <10000000>;
+			Vdd-supply = <&vdd_supply>;
+			adi,use-external-reference;
+			REF-supply = <&vref_supply>;
+		};

Documentation/devicetree/bindings/iio/frequency/adf4350.txt

+Analog Devices ADF4350/ADF4351 device driver
+
+Required properties:
+	- compatible: Should be one of
+		* "adi,adf4350": When using the ADF4350 device
+		* "adi,adf4351": When using the ADF4351 device
+	- reg: SPI chip select numbert for the device
+	- spi-max-frequency: Max SPI frequency to use (< 20000000)
+	- clocks: From common clock binding. Clock is phandle to clock for
+		ADF435x Reference Clock (CLKIN).
+
+Optional properties:
+	- gpios:	 GPIO Lock detect - If set with a valid phandle and GPIO number,
+			pll lock state is tested upon read.
+	- adi,channel-spacing: Channel spacing in Hz (influences MODULUS).
+	- adi,power-up-frequency:	If set in Hz the PLL tunes to
+			the desired frequency on probe.
+	- adi,reference-div-factor: If set the driver skips dynamic calculation
+			and uses this default value instead.
+	- adi,reference-doubler-enable: Enables reference doubler.
+	- adi,reference-div2-enable: Enables reference divider.
+	- adi,phase-detector-polarity-positive-enable: Enables positive phase
+			detector polarity. Default = negative.
+	- adi,lock-detect-precision-6ns-enable: Enables 6ns lock detect precision.
+			Default = 10ns.
+	- adi,lock-detect-function-integer-n-enable: Enables lock detect
+			for integer-N mode. Default = factional-N mode.
+	- adi,charge-pump-current: Charge pump current in mA.
+			Default = 2500mA.
+	- adi,muxout-select: On chip multiplexer output selection.
+			Valid values for the multiplexer output are:
+			0: Three-State Output (default)
+			1: DVDD
+			2: DGND
+			3: R-Counter output
+			4: N-Divider output
+			5: Analog lock detect
+			6: Digital lock detect
+	- adi,low-spur-mode-enable: Enables low spur mode.
+			Default = Low noise mode.
+	- adi,cycle-slip-reduction-enable: Enables cycle slip reduction.
+	- adi,charge-cancellation-enable: Enabled charge pump
+			charge cancellation for integer-N modes.
+	- adi,anti-backlash-3ns-enable: Enables 3ns antibacklash pulse width
+			 for integer-N modes.
+	- adi,band-select-clock-mode-high-enable: Enables faster band
+			selection logic.
+	- adi,12bit-clk-divider: Clock divider value used when
+			adi,12bit-clkdiv-mode != 0
+	- adi,clk-divider-mode:
+			Valid values for the clkdiv mode are:
+			0: Clock divider off (default)
+			1: Fast lock enable
+			2: Phase resync enable
+	- adi,aux-output-enable: Enables auxiliary RF output.
+	- adi,aux-output-fundamental-enable: Selects fundamental VCO output on
+			the auxiliary RF output. Default = Output of RF dividers.
+	- adi,mute-till-lock-enable: Enables Mute-Till-Lock-Detect function.
+	- adi,output-power: Output power selection.
+			Valid values for the power mode are:
+			0: -4dBm (default)
+			1: -1dBm
+			2: +2dBm
+			3: +5dBm
+	- adi,aux-output-power: Auxiliary output power selection.
+			Valid values for the power mode are:
+			0: -4dBm (default)
+			1: -1dBm
+			2: +2dBm
+			3: +5dBm
+
+
+Example:
+		lo_pll0_rx_adf4351: adf4351-rx-lpc@4 {
+			compatible = "adi,adf4351";
+			reg = <4>;
+			spi-max-frequency = <10000000>;
+			clocks = <&clk0_ad9523 9>;
+			clock-names = "clkin";
+			adi,channel-spacing = <10000>;
+			adi,power-up-frequency = <2400000000>;
+			adi,phase-detector-polarity-positive-enable;
+			adi,charge-pump-current = <2500>;
+			adi,output-power = <3>;
+			adi,mute-till-lock-enable;
+		};

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

+* AsahiKASEI AK8975 magnetometer sensor
+
+Required properties:
+
+  - compatible : should be "asahi-kasei,ak8975"
+  - reg : the I2C address of the magnetometer
+
+Optional properties:
+
+  - gpios : should be device tree identifier of the magnetometer DRDY pin
+
+Example:
+
+ak8975@0c {
+        compatible = "asahi-kasei,ak8975";
+        reg = <0x0c>;
+        gpios = <&gpj0 7 0>;
+};

Documentation/devicetree/bindings/staging/imx-drm/ldb.txt

+Device-Tree bindings for LVDS Display Bridge (ldb)
+
+LVDS Display Bridge
+===================
+
+The LVDS Display Bridge device tree node contains up to two lvds-channel
+nodes describing each of the two LVDS encoder channels of the bridge.
+
+Required properties:
+ - #address-cells : should be <1>
+ - #size-cells : should be <0>
+ - compatible : should be "fsl,imx53-ldb" or "fsl,imx6q-ldb".
+                Both LDB versions are similar, but i.MX6 has an additional
+                multiplexer in the front to select any of the four IPU display
+                interfaces as input for each LVDS channel.
+ - gpr : should be <&gpr> on i.MX53 and i.MX6q.
+         The phandle points to the iomuxc-gpr region containing the LVDS
+         control register.
+- clocks, clock-names : phandles to the LDB divider and selector clocks and to
+                        the display interface selector clocks, as described in
+                        Documentation/devicetree/bindings/clock/clock-bindings.txt
+        The following clocks are expected on i.MX53:
+                "di0_pll" - LDB LVDS channel 0 mux
+                "di1_pll" - LDB LVDS channel 1 mux
+                "di0" - LDB LVDS channel 0 gate
+                "di1" - LDB LVDS channel 1 gate
+                "di0_sel" - IPU1 DI0 mux
+                "di1_sel" - IPU1 DI1 mux
+        On i.MX6q the following additional clocks are needed:
+                "di2_sel" - IPU2 DI0 mux
+                "di3_sel" - IPU2 DI1 mux
+        The needed clock numbers for each are documented in
+        Documentation/devicetree/bindings/clock/imx5-clock.txt, and in
+        Documentation/devicetree/bindings/clock/imx6q-clock.txt.
+
+Optional properties:
+ - pinctrl-names : should be "default" on i.MX53, not used on i.MX6q
+ - pinctrl-0 : a phandle pointing to LVDS pin settings on i.MX53,
+               not used on i.MX6q
+ - fsl,dual-channel : boolean. if it exists, only LVDS channel 0 should
+   be configured - one input will be distributed on both outputs in dual
+   channel mode
+
+LVDS Channel
+============
+
+Each LVDS Channel has to contain a display-timings node that describes the
+video timings for the connected LVDS display. For detailed information, also
+have a look at Documentation/devicetree/bindings/video/display-timing.txt.
+
+Required properties:
+ - reg : should be <0> or <1>
+ - crtcs : a list of phandles with index pointing to the IPU display interfaces
+           that can be used as video source for this channel.
+ - fsl,data-mapping : should be "spwg" or "jeida"
+                      This describes how the color bits are laid out in the
+                      serialized LVDS signal.
+ - fsl,data-width : should be <18> or <24>
+
+example:
+
+gpr: iomuxc-gpr@53fa8000 {
+	/* ... */
+};
+
+ldb: ldb@53fa8008 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	compatible = "fsl,imx53-ldb";
+	gpr = <&gpr>;
+	clocks = <&clks 122>, <&clks 120>,
+		 <&clks 115>, <&clks 116>,
+		 <&clks 123>, <&clks 85>;
+	clock-names = "di0_pll", "di1_pll",
+		      "di0_sel", "di1_sel",
+		      "di0", "di1";
+
+	lvds-channel@0 {
+		reg = <0>;
+		crtcs = <&ipu 0>;
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <24>;
+
+		display-timings {
+			/* ... */
+		};
+	};
+
+	lvds-channel@1 {
+		reg = <1>;
+		crtcs = <&ipu 1>;
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <24>;
+
+		display-timings {
+			/* ... */
+		};
+	};
+};

MAINTAINERS

@@ -7783,7 +7783,7 @@ F:	drivers/staging/media/solo6x10/
 STAGING - SPEAKUP CONSOLE SPEECH DRIVER
 M:	William Hubbs <w.d.hubbs@gmail.com>
 M:	Chris Brannon <chris@the-brannons.com>
-M:	Kirk Reiser <kirk@braille.uwo.ca>
+M:	Kirk Reiser <kirk@reisers.ca>
 M:	Samuel Thibault <samuel.thibault@ens-lyon.org>
 L:	speakup@braille.uwo.ca
 W:	http://www.linux-speakup.org/

drivers/iio/Kconfig

@@ -70,5 +70,9 @@ source "drivers/iio/gyro/Kconfig"
 source "drivers/iio/imu/Kconfig"
 source "drivers/iio/light/Kconfig"
 source "drivers/iio/magnetometer/Kconfig"
+if IIO_TRIGGER
+   source "drivers/iio/trigger/Kconfig"
+endif #IIO_TRIGGER
+source "drivers/iio/pressure/Kconfig"
 
 endif # IIO

drivers/iio/Makefile

@@ -21,3 +21,5 @@ obj-y += frequency/
 obj-y += imu/
 obj-y += light/
 obj-y += magnetometer/
+obj-y += trigger/
+obj-y += pressure/

drivers/iio/accel/Kconfig

@@ -28,7 +28,6 @@ config IIO_ST_ACCEL_3AXIS
 	select IIO_ST_ACCEL_I2C_3AXIS if (I2C)
 	select IIO_ST_ACCEL_SPI_3AXIS if (SPI_MASTER)
 	select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
-	select IIO_ST_ACCEL_BUFFER if (IIO_TRIGGERED_BUFFER)
 	help
 	  Say yes here to build support for STMicroelectronics accelerometers:
 	  LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,

drivers/iio/accel/st_accel_core.c

@@ -26,6 +26,8 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_accel.h"
 
+#define ST_ACCEL_NUMBER_DATA_CHANNELS		3
+
 /* DEFAULT VALUE FOR SENSORS */
 #define ST_ACCEL_DEFAULT_OUT_X_L_ADDR		0x28
 #define ST_ACCEL_DEFAULT_OUT_Y_L_ADDR		0x2a
@@ -125,22 +127,34 @@
 #define ST_ACCEL_3_MULTIREAD_BIT		false
 
 static const struct iio_chan_spec st_accel_12bit_channels[] = {
-	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_X, IIO_MOD_X, IIO_LE,
-		ST_SENSORS_DEFAULT_12_REALBITS, ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
-	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Y, IIO_MOD_Y, IIO_LE,
-		ST_SENSORS_DEFAULT_12_REALBITS, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
-	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Z, IIO_MOD_Z, IIO_LE,
-		ST_SENSORS_DEFAULT_12_REALBITS, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
+	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+			ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 12, 16,
+			ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
+	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+			ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 12, 16,
+			ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
+	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+			ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 12, 16,
+			ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
 	IIO_CHAN_SOFT_TIMESTAMP(3)
 };
 
 static const struct iio_chan_spec st_accel_16bit_channels[] = {
-	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_X, IIO_MOD_X, IIO_LE,
-		ST_SENSORS_DEFAULT_16_REALBITS, ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
-	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Y, IIO_MOD_Y, IIO_LE,
-		ST_SENSORS_DEFAULT_16_REALBITS, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
-	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Z, IIO_MOD_Z, IIO_LE,
-		ST_SENSORS_DEFAULT_16_REALBITS, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
+	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+			ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+			ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
+	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+			ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+			ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
+	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+			ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+			ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
 	IIO_CHAN_SOFT_TIMESTAMP(3)
 };
 
@@ -442,6 +456,7 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
 	if (err < 0)
 		goto st_accel_common_probe_error;
 
+	adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS;
 	adata->multiread_bit = adata->sensor->multi_read_bit;
 	indio_dev->channels = adata->sensor->ch;
 	indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;

drivers/iio/adc/Kconfig

@@ -133,6 +133,16 @@ config MAX1363
 	  max11646, max11647) Provides direct access via sysfs and buffered
 	  data via the iio dev interface.
 
+config MCP320X
+	tristate "Microchip Technology MCP3204/08"
+	depends on SPI
+	help
+	  Say yes here to build support for Microchip Technology's MCP3204 or
+	  MCP3208 analog to digital converter.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called mcp320x.
+
 config TI_ADC081C
 	tristate "Texas Instruments ADC081C021/027"
 	depends on I2C

drivers/iio/adc/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_AT91_ADC) += at91_adc.o
 obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
 obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
 obj-$(CONFIG_MAX1363) += max1363.o
+obj-$(CONFIG_MCP320X) += mcp320x.o
 obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
 obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o
 obj-$(CONFIG_VIPERBOARD_ADC) += viperboard_adc.o

drivers/iio/adc/at91_adc.c

@@ -774,11 +774,13 @@ static int at91_adc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
 static const struct of_device_id at91_adc_dt_ids[] = {
 	{ .compatible = "atmel,at91sam9260-adc" },
 	{},
 };
 MODULE_DEVICE_TABLE(of, at91_adc_dt_ids);
+#endif
 
 static struct platform_driver at91_adc_driver = {
 	.probe = at91_adc_probe,

drivers/iio/adc/exynos_adc.c

@@ -270,16 +270,16 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	info = iio_priv(indio_dev);
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	info->regs = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!info->regs) {
-		ret = -ENOMEM;
+	info->regs = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(info->regs)) {
+		ret = PTR_ERR(info->regs);
 		goto err_iio;
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	info->enable_reg = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!info->enable_reg) {
-		ret = -ENOMEM;
+	info->enable_reg = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(info->enable_reg)) {
+		ret = PTR_ERR(info->enable_reg);
 		goto err_iio;
 	}
 

drivers/iio/adc/max1363.c

@@ -660,7 +660,7 @@ static ssize_t max1363_monitor_store_freq(struct device *dev,
 	unsigned long val;
 	bool found = false;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		return -EINVAL;
 	for (i = 0; i < ARRAY_SIZE(max1363_monitor_speeds); i++)

drivers/iio/adc/mcp320x.c

+/*
+ * Copyright (C) 2013 Oskar Andero <oskar.andero@gmail.com>
+ *
+ * Driver for Microchip Technology's MCP3204 and MCP3208 ADC chips.
+ * Datasheet can be found here:
+ * http://ww1.microchip.com/downloads/en/devicedoc/21298c.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+#include <linux/iio/iio.h>
+#include <linux/regulator/consumer.h>
+
+#define MCP_SINGLE_ENDED	(1 << 3)
+#define MCP_START_BIT		(1 << 4)
+
+enum {
+	mcp3204,
+	mcp3208,
+};
+
+struct mcp320x {
+	struct spi_device *spi;
+	struct spi_message msg;
+	struct spi_transfer transfer[2];
+
+	u8 tx_buf;
+	u8 rx_buf[2];
+
+	struct regulator *reg;
+	struct mutex lock;
+};
+
+static int mcp320x_adc_conversion(struct mcp320x *adc, u8 msg)
+{
+	int ret;
+
+	adc->tx_buf = msg;
+	ret = spi_sync(adc->spi, &adc->msg);
+	if (ret < 0)
+		return ret;
+
+	return ((adc->rx_buf[0] & 0x3f) << 6)  |
+		(adc->rx_buf[1] >> 2);
+}
+
+static int mcp320x_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *channel, int *val,
+			    int *val2, long mask)
+{
+	struct mcp320x *adc = iio_priv(indio_dev);
+	int ret = -EINVAL;
+
+	mutex_lock(&adc->lock);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (channel->differential)
+			ret = mcp320x_adc_conversion(adc,
+				MCP_START_BIT | channel->address);
+		else
+			ret = mcp320x_adc_conversion(adc,
+				MCP_START_BIT | MCP_SINGLE_ENDED |
+				channel->address);
+		if (ret < 0)
+			goto out;
+
+		*val = ret;
+		ret = IIO_VAL_INT;
+		break;
+
+	case IIO_CHAN_INFO_SCALE:
+		/* Digital output code = (4096 * Vin) / Vref */
+		ret = regulator_get_voltage(adc->reg);
+		if (ret < 0)
+			goto out;
+
+		*val = ret / 1000;
+		*val2 = 12;
+		ret = IIO_VAL_FRACTIONAL_LOG2;
+		break;
+
+	default:
+		break;
+	}
+
+out:
+	mutex_unlock(&adc->lock);
+
+	return ret;
+}
+
+#define MCP320X_VOLTAGE_CHANNEL(num)				\
+	{							\
+		.type = IIO_VOLTAGE,				\
+		.indexed = 1,					\
+		.channel = (num),				\
+		.address = (num),				\
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) \
+	}
+
+#define MCP320X_VOLTAGE_CHANNEL_DIFF(num)			\
+	{							\
+		.type = IIO_VOLTAGE,				\
+		.indexed = 1,					\
+		.channel = (num * 2),				\
+		.channel2 = (num * 2 + 1),			\
+		.address = (num * 2),				\
+		.differential = 1,				\
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) \
+	}
+
+static const struct iio_chan_spec mcp3204_channels[] = {
+	MCP320X_VOLTAGE_CHANNEL(0),
+	MCP320X_VOLTAGE_CHANNEL(1),
+	MCP320X_VOLTAGE_CHANNEL(2),
+	MCP320X_VOLTAGE_CHANNEL(3),
+	MCP320X_VOLTAGE_CHANNEL_DIFF(0),
+	MCP320X_VOLTAGE_CHANNEL_DIFF(1),
+};
+
+static const struct iio_chan_spec mcp3208_channels[] = {
+	MCP320X_VOLTAGE_CHANNEL(0),
+	MCP320X_VOLTAGE_CHANNEL(1),
+	MCP320X_VOLTAGE_CHANNEL(2),
+	MCP320X_VOLTAGE_CHANNEL(3),
+	MCP320X_VOLTAGE_CHANNEL(4),
+	MCP320X_VOLTAGE_CHANNEL(5),
+	MCP320X_VOLTAGE_CHANNEL(6),
+	MCP320X_VOLTAGE_CHANNEL(7),
+	MCP320X_VOLTAGE_CHANNEL_DIFF(0),
+	MCP320X_VOLTAGE_CHANNEL_DIFF(1),
+	MCP320X_VOLTAGE_CHANNEL_DIFF(2),
+	MCP320X_VOLTAGE_CHANNEL_DIFF(3),
+};
+
+static const struct iio_info mcp320x_info = {
+	.read_raw = mcp320x_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+struct mcp3208_chip_info {
+	const struct iio_chan_spec *channels;
+	unsigned int num_channels;
+};
+
+static const struct mcp3208_chip_info mcp3208_chip_infos[] = {
+	[mcp3204] = {
+		.channels = mcp3204_channels,
+		.num_channels = ARRAY_SIZE(mcp3204_channels)
+	},
+	[mcp3208] = {
+		.channels = mcp3208_channels,
+		.num_channels = ARRAY_SIZE(mcp3208_channels)
+	},
+};
+
+static int mcp320x_probe(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev;
+	struct mcp320x *adc;
+	const struct mcp3208_chip_info *chip_info;
+	int ret;
+
+	indio_dev = iio_device_alloc(sizeof(*adc));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	adc = iio_priv(indio_dev);
+	adc->spi = spi;
+
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->name = spi_get_device_id(spi)->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &mcp320x_info;
+
+	chip_info = &mcp3208_chip_infos[spi_get_device_id(spi)->driver_data];
+	indio_dev->channels = chip_info->channels;
+	indio_dev->num_channels = chip_info->num_channels;
+
+	adc->transfer[0].tx_buf = &adc->tx_buf;
+	adc->transfer[0].len = sizeof(adc->tx_buf);
+	adc->transfer[1].rx_buf = adc->rx_buf;
+	adc->transfer[1].len = sizeof(adc->rx_buf);
+
+	spi_message_init_with_transfers(&adc->msg, adc->transfer,
+					ARRAY_SIZE(adc->transfer));
+
+	adc->reg = regulator_get(&spi->dev, "vref");
+	if (IS_ERR(adc->reg)) {
+		ret = PTR_ERR(adc->reg);
+		goto iio_free;
+	}
+
+	ret = regulator_enable(adc->reg);
+	if (ret < 0)
+		goto reg_free;
+
+	mutex_init(&adc->lock);
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto reg_disable;
+
+	return 0;
+
+reg_disable:
+	regulator_disable(adc->reg);
+reg_free:
+	regulator_put(adc->reg);
+iio_free:
+	iio_device_free(indio_dev);
+
+	return ret;
+}
+
+static int mcp320x_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct mcp320x *adc = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	regulator_disable(adc->reg);
+	regulator_put(adc->reg);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static const struct spi_device_id mcp320x_id[] = {
+	{ "mcp3204", mcp3204 },
+	{ "mcp3208", mcp3208 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, mcp320x_id);
+
+static struct spi_driver mcp320x_driver = {
+	.driver = {
+		.name = "mcp320x",
+		.owner = THIS_MODULE,
+	},
+	.probe = mcp320x_probe,
+	.remove = mcp320x_remove,
+	.id_table = mcp320x_id,
+};
+module_spi_driver(mcp320x_driver);
+
+MODULE_AUTHOR("Oskar Andero <oskar.andero@gmail.com>");
+MODULE_DESCRIPTION("Microchip Technology MCP3204/08");
+MODULE_LICENSE("GPL v2");

drivers/iio/common/st_sensors/st_sensors_buffer.c

@@ -24,11 +24,20 @@
 
 int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf)
 {
+	u8 *addr;
 	int i, n = 0, len;
-	u8 addr[ST_SENSORS_NUMBER_DATA_CHANNELS];
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
+	unsigned int num_data_channels = sdata->num_data_channels;
+	unsigned int byte_for_channel =
+			indio_dev->channels[0].scan_type.storagebits >> 3;
 
-	for (i = 0; i < ST_SENSORS_NUMBER_DATA_CHANNELS; i++) {
+	addr = kmalloc(num_data_channels, GFP_KERNEL);
+	if (!addr) {
+		len = -ENOMEM;
+		goto st_sensors_get_buffer_element_error;
+	}
+
+	for (i = 0; i < num_data_channels; i++) {
 		if (test_bit(i, indio_dev->active_scan_mask)) {
 			addr[n] = indio_dev->channels[i].address;
 			n++;
@@ -37,52 +46,58 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf)
 	switch (n) {
 	case 1:
 		len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
-			addr[0], ST_SENSORS_BYTE_FOR_CHANNEL, buf,
-			sdata->multiread_bit);
+			addr[0], byte_for_channel, buf, sdata->multiread_bit);
 		break;
 	case 2:
-		if ((addr[1] - addr[0]) == ST_SENSORS_BYTE_FOR_CHANNEL) {
+		if ((addr[1] - addr[0]) == byte_for_channel) {
 			len = sdata->tf->read_multiple_byte(&sdata->tb,
-					sdata->dev, addr[0],
-					ST_SENSORS_BYTE_FOR_CHANNEL*n,
-					buf, sdata->multiread_bit);
+				sdata->dev, addr[0], byte_for_channel * n,
+				buf, sdata->multiread_bit);
 		} else {
-			u8 rx_array[ST_SENSORS_BYTE_FOR_CHANNEL*
-				    ST_SENSORS_NUMBER_DATA_CHANNELS];
+			u8 *rx_array;
+			rx_array = kmalloc(byte_for_channel * num_data_channels,
+					   GFP_KERNEL);
+			if (!rx_array) {
+				len = -ENOMEM;
+				goto st_sensors_free_memory;
+			}
+
 			len = sdata->tf->read_multiple_byte(&sdata->tb,
 				sdata->dev, addr[0],
-				ST_SENSORS_BYTE_FOR_CHANNEL*
-				ST_SENSORS_NUMBER_DATA_CHANNELS,
+				byte_for_channel * num_data_channels,
 				rx_array, sdata->multiread_bit);
-			if (len < 0)
-				goto read_data_channels_error;
+			if (len < 0) {
+				kfree(rx_array);
+				goto st_sensors_free_memory;
+			}
 
-			for (i = 0; i < n * ST_SENSORS_NUMBER_DATA_CHANNELS;
-									i++) {
+			for (i = 0; i < n * num_data_channels; i++) {
 				if (i < n)
 					buf[i] = rx_array[i];
 				else
 					buf[i] = rx_array[n + i];
 			}
-			len = ST_SENSORS_BYTE_FOR_CHANNEL*n;
+			kfree(rx_array);
+			len = byte_for_channel * n;
 		}
 		break;
 	case 3:
 		len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
-			addr[0], ST_SENSORS_BYTE_FOR_CHANNEL*
-			ST_SENSORS_NUMBER_DATA_CHANNELS,
+			addr[0], byte_for_channel * num_data_channels,
 			buf, sdata->multiread_bit);
 		break;
 	default:
 		len = -EINVAL;
-		goto read_data_channels_error;
+		goto st_sensors_free_memory;
 	}
-	if (len != ST_SENSORS_BYTE_FOR_CHANNEL*n) {
+	if (len != byte_for_channel * n) {
 		len = -EIO;
-		goto read_data_channels_error;
+		goto st_sensors_free_memory;
 	}
 
-read_data_channels_error:
+st_sensors_free_memory:
+	kfree(addr);
+st_sensors_get_buffer_element_error:
 	return len;
 }
 EXPORT_SYMBOL(st_sensors_get_buffer_element);

drivers/iio/common/st_sensors/st_sensors_core.c

@@ -20,6 +20,11 @@
 
 #define ST_SENSORS_WAI_ADDRESS		0x0f
 
+static inline u32 st_sensors_get_unaligned_le24(const u8 *p)
+{
+	return ((s32)((p[0] | p[1] << 8 | p[2] << 16) << 8) >> 8);
+}
+
 static int st_sensors_write_data_with_mask(struct iio_dev *indio_dev,
 						u8 reg_addr, u8 mask, u8 data)
 {
@@ -112,7 +117,8 @@ static int st_sensors_match_fs(struct st_sensors *sensor,
 	return ret;
 }
 
-static int st_sensors_set_fullscale(struct iio_dev *indio_dev, unsigned int fs)
+static int st_sensors_set_fullscale(struct iio_dev *indio_dev,
+							unsigned int fs)
 {
 	int err, i = 0;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
@@ -273,21 +279,33 @@ int st_sensors_set_fullscale_by_gain(struct iio_dev *indio_dev, int scale)
 EXPORT_SYMBOL(st_sensors_set_fullscale_by_gain);
 
 static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
-							u8 ch_addr, int *data)
+				struct iio_chan_spec const *ch, int *data)
 {
 	int err;
-	u8 outdata[ST_SENSORS_BYTE_FOR_CHANNEL];
+	u8 *outdata;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
+	unsigned int byte_for_channel = ch->scan_type.storagebits >> 3;
+
+	outdata = kmalloc(byte_for_channel, GFP_KERNEL);
+	if (!outdata) {
+		err = -EINVAL;
+		goto st_sensors_read_axis_data_error;
+	}
 
 	err = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
-				ch_addr, ST_SENSORS_BYTE_FOR_CHANNEL,
+				ch->address, byte_for_channel,
 				outdata, sdata->multiread_bit);
 	if (err < 0)
-		goto read_error;
+		goto st_sensors_free_memory;
 
-	*data = (s16)get_unaligned_le16(outdata);
+	if (byte_for_channel == 2)
+		*data = (s16)get_unaligned_le16(outdata);
+	else if (byte_for_channel == 3)
+		*data = (s32)st_sensors_get_unaligned_le24(outdata);
 
-read_error:
+st_sensors_free_memory:
+	kfree(outdata);
+st_sensors_read_axis_data_error:
 	return err;
 }
 
@@ -307,7 +325,7 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev,
 			goto read_error;
 
 		msleep((sdata->sensor->bootime * 1000) / sdata->odr);
-		err = st_sensors_read_axis_data(indio_dev, ch->address, val);
+		err = st_sensors_read_axis_data(indio_dev, ch, val);
 		if (err < 0)
 			goto read_error;
 

drivers/iio/dac/Kconfig

@@ -130,6 +130,16 @@ config AD5686
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5686.
 
+config AD7303
+	tristate "Analog Devices Analog Devices AD7303 DAC driver"
+	depends on SPI
+	help
+	  Say yes here to build support for Analog Devices AD7303 Digital to Analog
+	  Converters (DAC).
+
+	  To compile this driver as module choose M here: the module will be called
+	  ad7303.
+
 config MAX517
 	tristate "Maxim MAX517/518/519 DAC driver"
 	depends on I2C

drivers/iio/dac/Makefile

@@ -14,5 +14,6 @@ obj-$(CONFIG_AD5755) += ad5755.o
 obj-$(CONFIG_AD5764) += ad5764.o
 obj-$(CONFIG_AD5791) += ad5791.o
 obj-$(CONFIG_AD5686) += ad5686.o
+obj-$(CONFIG_AD7303) += ad7303.o
 obj-$(CONFIG_MAX517) += max517.o
 obj-$(CONFIG_MCP4725) += mcp4725.o