Merge tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Freescale MXS Low Resolution ADC
   - Freescale i.MX23/i.MX28 LRADC touchscreen
   - Motorola CPCAP Power Button
   - TI LMU (Lighting Management Unit)
   - Atmel SMC (Static Memory Controller)

  New Device Support:
   - Add support for X-Powers AXP803 to axp20x
   - Add support for Dialog Semi DA9061 to da9062-core
   - Add support for Intel Cougar Mountain to lpc_ich
   - Add support for Intel Gemini Lake to lpc_ich

  New Functionality:
   - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc
   - Add IRQ sense support; motorola-cpcap
   - Add ACPI support; cros_ec
   - Add Reset support; altera-a10sr
   - Add ADC support; axp20x
   - Add AC Power support; axp20x
   - Add Runtime PM support; atmel-ebi, exynos-lpass
   - Add Battery Power Supply support; axp20x
   - Add Clock support; exynos-lpass, hi655x-pmic

  Fix-ups:
   - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc
   - Add .remove() method; stm32-timers, exynos-lpass
   - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus
   - Rename variables for clarity; axp20x
   - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power
   - Improve formatting; arizona-core, axp20x
   - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb
   - Simplify/refactor code; arizona-core, atmel-ebi
   - Improve error checking; intel_soc_pmic_core

  Bug Fixes:
   - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power
   - Correct max-register value; stm32-timers
   - Extend timeout to account for clock stretching; cros_ec_spi
   - Use correct IRQ trigger type; motorola-cpcap
   - Fix bad use of IRQ sense register; motorola-cpcap
   - Logic error "||" should be "&&"; mxs-lradc-ts"

* tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits)
  input: touchscreen: mxs-lradc: || vs && typos
  dt-bindings: Add AXP803's regulator info
  mfd: axp20x: Support AXP803 variant
  dt-bindings: Add device tree binding for X-Powers AXP803 PMIC
  dt-bindings: Make AXP20X compatible strings one per line
  mfd: intel_soc_pmic_core: Fix unchecked return value
  mfd: menelaus: Remove obsolete local_irq_disable() and local_irq_enable()
  mfd: omap-usb-tll: Configure ULPIAUTOIDLE
  mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode
  mfd: palmas: Fixed spelling mistake in error message
  mfd: lpc_ich: Add support for Intel Gemini Lake SoC
  mfd: hi655x: Add the clock cell to provide WiFi and Bluetooth
  mfd: intel_soc_pmic: Fix a mess with compilation units
  mfd: exynos-lpass: Add runtime PM support
  mfd: exynos-lpass: Add missing remove() function
  mfd: exynos-lpass: Add support for clocks
  mfd: exynos-lpass: Remove pad retention control
  iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs
  mfd: cpcap: Fix bad use of IRQ sense register
  mfd: cpcap: Use ack_invert interrupts
  ...

10 files changed, 459 insertions, 18 deletions

diff --git a/Documentation/devicetree/bindings/input/cpcap-pwrbutton.txt b/Documentation/devicetree/bindings/input/cpcap-pwrbutton.txt
new file mode 100644
index 000000000000..0dd0076daf71
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cpcap-pwrbutton.txt
@@ -0,0 +1,20 @@
+Motorola CPCAP on key
+
+This module is part of the CPCAP. For more details about the whole
+chip see Documentation/devicetree/bindings/mfd/motorola-cpcap.txt.
+
+This module provides a simple power button event via an Interrupt.
+
+Required properties:
+- compatible: should be one of the following
+   - "motorola,cpcap-pwrbutton"
+- interrupts: irq specifier for CPCAP's ON IRQ
+
+Example:
+
+&cpcap {
+        cpcap_pwrbutton: pwrbutton {
+                compatible = "motorola,cpcap-pwrbutton";
+                interrupts = <23 IRQ_TYPE_NONE>;
+        };
+};
diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
index ea151f295ad7..c8a736554b4b 100644
--- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
+++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
@@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
 Device                   Description
 ------                   ----------
 a10sr_gpio               GPIO Controller
+a10sr_rst                Reset Controller
 
 Arria10 GPIO
 Required Properties:
@@ -27,6 +28,11 @@ Required Properties:
                       the second cell is used to specify flags.
                       See ../gpio/gpio.txt for more information.
 
+Arria10 Peripheral PHY Reset
+Required Properties:
+- compatible        : Should be "altr,a10sr-reset"
+- #reset-cells      : Should be one.
+
 Example:
 
         resource-manager@0 {
@@ -43,4 +49,9 @@ Example:
                         gpio-controller;
                         #gpio-cells = <2>;
                 };
+
+                a10sr_rst: reset-controller {
+                        compatible = "altr,a10sr-reset";
+                        #reset-cells = <1>;
+                };
         };
diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt
index 8f3ad9ab4637..aca09af66514 100644
--- a/Documentation/devicetree/bindings/mfd/axp20x.txt
+++ b/Documentation/devicetree/bindings/mfd/axp20x.txt
@@ -6,12 +6,19 @@ axp202 (X-Powers)
 axp209 (X-Powers)
 axp221 (X-Powers)
 axp223 (X-Powers)
+axp803 (X-Powers)
 axp809 (X-Powers)
 
 Required properties:
-- compatible: "x-powers,axp152", "x-powers,axp202", "x-powers,axp209",
-              "x-powers,axp221", "x-powers,axp223", "x-powers,axp806",
-              "x-powers,axp809"
+- compatible: should be one of:
+    * "x-powers,axp152"
+    * "x-powers,axp202"
+    * "x-powers,axp209"
+    * "x-powers,axp221"
+    * "x-powers,axp223"
+    * "x-powers,axp803"
+    * "x-powers,axp806"
+    * "x-powers,axp809"
 - reg: The I2C slave address or RSB hardware address for the AXP chip
 - interrupt-parent: The parent interrupt controller
 - interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
@@ -28,6 +35,9 @@ Optional properties:
                   regulator to drive the OTG VBus, rather then as an input pin
                   which signals whether the board is driving OTG VBus or not.
 
+- x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
+                        wired for master mode. The default is slave mode.
+
 - <input>-supply: a phandle to the regulator supply node. May be omitted if
                   inputs are unregulated, such as using the IPSOUT output
                   from the PMIC.
@@ -86,6 +96,33 @@ LDO_IO1		: LDO		: ips-supply		: GPIO 1
 RTC_LDO         : LDO           : ips-supply            : always on
 DRIVEVBUS       : Enable output : drivevbus-supply      : external regulator
 
+AXP803 regulators, type, and corresponding input supply names:
+
+Regulator         Type            Supply Name             Notes
+---------         ----            -----------             -----
+DCDC1           : DC-DC buck    : vin1-supply
+DCDC2           : DC-DC buck    : vin2-supply           : poly-phase capable
+DCDC3           : DC-DC buck    : vin3-supply           : poly-phase capable
+DCDC4           : DC-DC buck    : vin4-supply
+DCDC5           : DC-DC buck    : vin5-supply           : poly-phase capable
+DCDC6           : DC-DC buck    : vin6-supply           : poly-phase capable
+DC1SW           : On/Off Switch :                       : DCDC1 secondary output
+ALDO1           : LDO           : aldoin-supply         : shared supply
+ALDO2           : LDO           : aldoin-supply         : shared supply
+ALDO3           : LDO           : aldoin-supply         : shared supply
+DLDO1           : LDO           : dldoin-supply         : shared supply
+DLDO2           : LDO           : dldoin-supply         : shared supply
+DLDO3           : LDO           : dldoin-supply         : shared supply
+DLDO4           : LDO           : dldoin-supply         : shared supply
+ELDO1           : LDO           : eldoin-supply         : shared supply
+ELDO2           : LDO           : eldoin-supply         : shared supply
+ELDO3           : LDO           : eldoin-supply         : shared supply
+FLDO1           : LDO           : fldoin-supply         : shared supply
+FLDO2           : LDO           : fldoin-supply         : shared supply
+LDO_IO0         : LDO           : ips-supply            : GPIO 0
+LDO_IO1         : LDO           : ips-supply            : GPIO 1
+RTC_LDO         : LDO           : ips-supply            : always on
+
 AXP806 regulators, type, and corresponding input supply names:
 
 Regulator         Type            Supply Name             Notes
diff --git a/Documentation/devicetree/bindings/mfd/da9062.txt b/Documentation/devicetree/bindings/mfd/da9062.txt
index 38802b54d48a..c0a418c27e9d 100644
--- a/Documentation/devicetree/bindings/mfd/da9062.txt
+++ b/Documentation/devicetree/bindings/mfd/da9062.txt
@@ -1,22 +1,39 @@
 * Dialog DA9062 Power Management Integrated Circuit (PMIC)
 
-DA9062 consists of a large and varied group of sub-devices:
+Product information for the DA9062 and DA9061 devices can be found here:
+- http://www.dialog-semiconductor.com/products/da9062
+- http://www.dialog-semiconductor.com/products/da9061
+
+The DA9062 PMIC consists of:
 
 Device                   Supply Names    Description
 ------                   ------------    -----------
 da9062-regulator        :               : LDOs & BUCKs
 da9062-rtc              :               : Real-Time Clock
+da9062-onkey            :               : On Key
+da9062-watchdog         :               : Watchdog Timer
+da9062-thermal          :               : Thermal
+
+The DA9061 PMIC consists of:
+
+Device                   Supply Names    Description
+------                   ------------    -----------
+da9062-regulator        :               : LDOs & BUCKs
+da9062-onkey            :               : On Key
 da9062-watchdog         :               : Watchdog Timer
+da9062-thermal          :               : Thermal
 
 ======
 
 Required properties:
 
-- compatible : Should be "dlg,da9062".
+- compatible : Should be
+    "dlg,da9062" for DA9062
+    "dlg,da9061" for DA9061
 - reg : Specifies the I2C slave address (this defaults to 0x58 but it can be
   modified to match the chip's OTP settings).
 - interrupt-parent : Specifies the reference to the interrupt controller for
-  the DA9062.
+  the DA9062 or DA9061.
 - interrupts : IRQ line information.
 - interrupt-controller
 
@@ -25,8 +42,8 @@ further information on IRQ bindings.
 
 Sub-nodes:
 
-- regulators : This node defines the settings for the LDOs and BUCKs. The
-  DA9062 regulators are bound using their names listed below:
+- regulators : This node defines the settings for the LDOs and BUCKs.
+  The DA9062 regulators are bound using their names listed below:
 
     buck1    : BUCK_1
     buck2    : BUCK_2
@@ -37,19 +54,29 @@ Sub-nodes:
     ldo3     : LDO_3
     ldo4     : LDO_4
 
+  The DA9061 regulators are bound using their names listed below:
+
+    buck1    : BUCK_1
+    buck2    : BUCK_2
+    buck3    : BUCK_3
+    ldo1     : LDO_1
+    ldo2     : LDO_2
+    ldo3     : LDO_3
+    ldo4     : LDO_4
+
   The component follows the standard regulator framework and the bindings
   details of individual regulator device can be found in:
   Documentation/devicetree/bindings/regulator/regulator.txt
 
-
 - rtc : This node defines settings required for the Real-Time Clock associated
   with the DA9062. There are currently no entries in this binding, however
   compatible = "dlg,da9062-rtc" should be added if a node is created.
 
-- watchdog: This node defines the settings for the watchdog driver associated
-  with the DA9062 PMIC. The compatible = "dlg,da9062-watchdog" should be added
-  if a node is created.
+- onkey : See ../input/da9062-onkey.txt
+
+- watchdog: See ../watchdog/da9062-watchdog.txt
 
+- thermal : See ../thermal/da9062-thermal.txt
 
 Example:
 
@@ -64,10 +91,6 @@ Example:
                         compatible = "dlg,da9062-rtc";
                 };
 
-                watchdog {
-                        compatible = "dlg,da9062-watchdog";
-                };
-
                 regulators {
                         DA9062_BUCK1: buck1 {
                                 regulator-name = "BUCK1";
diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt
index c568d52af5af..522a3bbf1bac 100644
--- a/Documentation/devicetree/bindings/mfd/mt6397.txt
+++ b/Documentation/devicetree/bindings/mfd/mt6397.txt
@@ -6,6 +6,7 @@ MT6397/MT6323 is a multifunction device with the following sub modules:
 - Audio codec
 - GPIO
 - Clock
+- LED
 
 It is interfaced to host controller using SPI interface by a proprietary hardware
 called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
diff --git a/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt b/Documentation/devicetree/bindings/mfd/mxs-lradc.txt
index 555fb117d4fa..555fb117d4fa 100644
--- a/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt
+++ b/Documentation/devicetree/bindings/mfd/mxs-lradc.txt
diff --git a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
index c110e118b79f..df664018c148 100644
--- a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
+++ b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
@@ -5,7 +5,10 @@ Required properties:
  - compatible           : "samsung,exynos5433-lpass"
  - reg                  : should contain the LPASS top SFR region location
                           and size
- - samsung,pmu-syscon   : the phandle to the Power Management Unit node
+ - clock-names          : should contain following required clocks: "sfr0_ctrl"
+ - clocks               : should contain clock specifiers of all clocks, which
+                          input names have been specified in clock-names
+                          property, in same order.
  - #address-cells       : should be 1
  - #size-cells          : should be 1
  - ranges               : must be present
@@ -25,7 +28,8 @@ Example:
 audio-subsystem {
         compatible = "samsung,exynos5433-lpass";
         reg = <0x11400000 0x100>, <0x11500000 0x08>;
-        samsung,pmu-syscon = <&pmu_system_controller>;
+        clocks = <&cmu_aud CLK_PCLK_SFR0_CTRL>;
+        clock-names = "sfr0_ctrl";
         #address-cells = <1>;
         #size-cells = <1>;
         ranges;
diff --git a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
index 89abecd938cb..badff3611a98 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt
+++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
@@ -1,3 +1,24 @@
+Allwinner SoCs' GPADC Device Tree bindings
+------------------------------------------
+The Allwinner SoCs all have an ADC that can also act as a thermal sensor
+and sometimes as a touchscreen controller.
+
+Required properties:
+  - compatible: "allwinner,sun8i-a33-ths",
+  - reg: mmio address range of the chip,
+  - #thermal-sensor-cells: shall be 0,
+  - #io-channel-cells: shall be 0,
+
+Example:
+        ths: ths@01c25000 {
+                compatible = "allwinner,sun8i-a33-ths";
+                reg = <0x01c25000 0x100>;
+                #thermal-sensor-cells = <0>;
+                #io-channel-cells = <0>;
+        };
+
+sun4i, sun5i and sun6i SoCs are also supported via the older binding:
+
 sun4i resistive touchscreen controller
 --------------------------------------
 
diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
new file mode 100644
index 000000000000..c885cf89b8ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -0,0 +1,243 @@
+TI LMU (Lighting Management Unit) device tree bindings
+
+TI LMU driver supports lighting devices below.
+
+   Name                  Child nodes
+  ------      ---------------------------------
+  LM3532       Backlight
+  LM3631       Backlight and regulator
+  LM3632       Backlight and regulator
+  LM3633       Backlight, LED and fault monitor
+  LM3695       Backlight
+  LM3697       Backlight and fault monitor
+
+Required properties:
+  - compatible: Should be one of:
+                "ti,lm3532"
+                "ti,lm3631"
+                "ti,lm3632"
+                "ti,lm3633"
+                "ti,lm3695"
+                "ti,lm3697"
+  - reg: I2C slave address.
+         0x11 for LM3632
+         0x29 for LM3631
+         0x36 for LM3633, LM3697
+         0x38 for LM3532
+         0x63 for LM3695
+
+Optional property:
+  - enable-gpios: A GPIO specifier for hardware enable pin.
+
+Required node:
+  - backlight: All LMU devices have backlight child nodes.
+               For the properties, please refer to [1].
+
+Optional nodes:
+  - fault-monitor: Hardware fault monitoring driver for LM3633 and LM3697.
+    Required properties:
+      - compatible: Should be one of:
+                    "ti,lm3633-fault-monitor"
+                    "ti,lm3697-fault-monitor"
+  - leds: LED properties for LM3633. Please refer to [2].
+  - regulators: Regulator properties for LM3631 and LM3632.
+                Please refer to [3].
+
+[1] ../leds/backlight/ti-lmu-backlight.txt
+[2] ../leds/leds-lm3633.txt
+[3] ../regulator/lm363x-regulator.txt
+
+lm3532@38 {
+        compatible = "ti,lm3532";
+        reg = <0x38>;
+
+        enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
+
+        backlight {
+                compatible = "ti,lm3532-backlight";
+
+                lcd {
+                        led-sources = <0 1 2>;
+                        ramp-up-msec = <30>;
+                        ramp-down-msec = <0>;
+                };
+        };
+};
+
+lm3631@29 {
+        compatible = "ti,lm3631";
+        reg = <0x29>;
+
+        regulators {
+                compatible = "ti,lm363x-regulator";
+
+                vboost {
+                        regulator-name = "lcd_boost";
+                        regulator-min-microvolt = <4500000>;
+                        regulator-max-microvolt = <6350000>;
+                        regulator-always-on;
+                };
+
+                vcont {
+                        regulator-name = "lcd_vcont";
+                        regulator-min-microvolt = <1800000>;
+                        regulator-max-microvolt = <3300000>;
+                };
+
+                voref {
+                        regulator-name = "lcd_voref";
+                        regulator-min-microvolt = <4000000>;
+                        regulator-max-microvolt = <6000000>;
+                };
+
+                vpos {
+                        regulator-name = "lcd_vpos";
+                        regulator-min-microvolt = <4000000>;
+                        regulator-max-microvolt = <6000000>;
+                        regulator-boot-on;
+                };
+
+                vneg {
+                        regulator-name = "lcd_vneg";
+                        regulator-min-microvolt = <4000000>;
+                        regulator-max-microvolt = <6000000>;
+                        regulator-boot-on;
+                };
+        };
+
+        backlight {
+                compatible = "ti,lm3631-backlight";
+
+                lcd_bl {
+                        led-sources = <0 1>;
+                        ramp-up-msec = <300>;
+                };
+        };
+};
+
+lm3632@11 {
+        compatible = "ti,lm3632";
+        reg = <0x11>;
+
+        enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>; /* PC2 */
+
+        regulators {
+                compatible = "ti,lm363x-regulator";
+
+                ti,lcm-en1-gpio = <&pioC 0 GPIO_ACTIVE_HIGH>; /* PC0 */
+                ti,lcm-en2-gpio = <&pioC 1 GPIO_ACTIVE_HIGH>; /* PC1 */
+
+                vboost {
+                        regulator-name = "lcd_boost";
+                        regulator-min-microvolt = <4500000>;
+                        regulator-max-microvolt = <6400000>;
+                        regulator-always-on;
+                };
+
+                vpos {
+                        regulator-name = "lcd_vpos";
+                        regulator-min-microvolt = <4000000>;
+                        regulator-max-microvolt = <6000000>;
+                };
+
+                vneg {
+                        regulator-name = "lcd_vneg";
+                        regulator-min-microvolt = <4000000>;
+                        regulator-max-microvolt = <6000000>;
+                };
+        };
+
+        backlight {
+                compatible = "ti,lm3632-backlight";
+
+                pwms = <&pwm0 0 10000 0>; /* pwm number, period, polarity */
+                pwm-names = "lmu-backlight";
+
+                lcd {
+                        led-sources = <0 1>;
+                        pwm-period = <10000>;
+                };
+        };
+};
+
+lm3633@36 {
+        compatible = "ti,lm3633";
+        reg = <0x36>;
+
+        enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
+
+        backlight {
+                compatible = "ti,lm3633-backlight";
+
+                main {
+                        label = "main_lcd";
+                        led-sources = <1 2>;
+                        ramp-up-msec = <500>;
+                        ramp-down-msec = <500>;
+                };
+
+                front {
+                        label = "front_lcd";
+                        led-sources = <0>;
+                        ramp-up-msec = <1000>;
+                        ramp-down-msec = <0>;
+                };
+        };
+
+        leds {
+                compatible = "ti,lm3633-leds";
+
+                chan1 {
+                        label = "status";
+                        led-sources = <1>;
+                        led-max-microamp = <6000>;
+                };
+
+                chan345 {
+                        label = "rgb";
+                        led-sources = <3 4 5>;
+                        led-max-microamp = <10000>;
+                };
+        };
+
+        fault-monitor {
+                compatible = "ti,lm3633-fault-monitor";
+        };
+};
+
+lm3695@63 {
+        compatible = "ti,lm3695";
+        reg = <0x63>;
+
+        enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
+
+        backlight {
+                compatible = "ti,lm3695-backlight";
+
+                lcd {
+                        label = "bl";
+                        led-sources = <0 1>;
+                };
+        };
+};
+
+lm3697@36 {
+        compatible = "ti,lm3697";
+        reg = <0x36>;
+
+        enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
+
+        backlight {
+                compatible = "ti,lm3697-backlight";
+
+                lcd {
+                        led-sources = <0 1 2>;
+                        ramp-up-msec = <200>;
+                        ramp-down-msec = <200>;
+                };
+        };
+
+        fault-monitor {
+                compatible = "ti,lm3697-fault-monitor";
+        };
+};
diff --git a/Documentation/devicetree/bindings/mfd/wm831x.txt b/Documentation/devicetree/bindings/mfd/wm831x.txt
new file mode 100644
index 000000000000..9f8b7430673c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/wm831x.txt
@@ -0,0 +1,81 @@
+Cirrus Logic/Wolfson Microelectronics wm831x PMICs
+
+System PMICs with a wide range of additional features.
+
+Required properties:
+
+  - compatible : One of the following chip-specific strings:
+        "wlf,wm8310"
+        "wlf,wm8311"
+        "wlf,wm8312"
+        "wlf,wm8320"
+        "wlf,wm8321"
+        "wlf,wm8325"
+        "wlf,wm8326"
+
+  - reg : I2C slave address when connected using I2C, chip select number
+    when using SPI.
+
+  - gpio-controller : Indicates this device is a GPIO controller.
+  - #gpio-cells : Must be 2. The first cell is the pin number and the
+    second cell is used to specify optional parameters (currently unused).
+
+  - interrupts : The interrupt line the IRQ signal for the device is
+    connected to.
+  - interrupt-parent : The parent interrupt controller.
+
+  - interrupt-controller : wm831x devices contain interrupt controllers and
+    may provide interrupt services to other devices.
+  - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the
+    second cell is the flags, encoded as the trigger masks from
+    ../interrupt-controller/interrupts.txt
+
+Optional sub-nodes:
+  - regulators : Contains sub-nodes for each of the regulators supplied by
+    the device. The regulators are bound using their names listed below:
+
+    dcdc1 : DCDC1
+    dcdc2 : DCDC2
+    dcdc3 : DCDC3
+    dcdc4 : DCDC3
+    isink1 : ISINK1
+    isink2 : ISINK2
+    ldo1 : LDO1
+    ldo2 : LDO2
+    ldo3 : LDO3
+    ldo4 : LDO4
+    ldo5 : LDO5
+    ldo7 : LDO7
+    ldo11 : LDO11
+
+    The bindings details of each regulator can be found in:
+    ../regulator/regulator.txt
+
+Example:
+
+wm8310: pmic@36 {
+        compatible = "wlf,wm8310";
+        reg = <0x36>;
+
+        gpio-controller;
+        #gpio-cells = <2>;
+
+        interrupts = <347>;
+        interrupt-parent = <&gic>;
+
+        interrupt-controller;
+        #interrupt-cells = <2>;
+
+        regulators {
+                dcdc1: dcdc1 {
+                        regulator-name = "DCDC1";
+                        regulator-min-microvolt = <600000>;
+                        regulator-max-microvolt = <600000>;
+                };
+                ldo1: ldo1 {
+                        regulator-name = "LDO1";
+                        regulator-min-microvolt = <1700000>;
+                        regulator-max-microvolt = <1700000>;
+                };
+        };
+};