Merge tag 'regulator-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This has been a fairly quiet release for the regulator API, the main
  thing has been the addition of helpers for interrupt handling from
  Matti Vaittinen.

  We do also have support for quite a few new devices.

  Summary:

   - Helpers for trivial interrupt notifications, making it easier for
     drivers to handle error interrupts.

   - Support for Dialog DA914x, Maxim MAX2008x, Qualcomm PM8826,
     PMG1100, and PM8450 and TI TPS68470"

* tag 'regulator-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (30 commits)
  regulator: Add MAX20086-MAX20089 driver
  dt-bindings: regulators: Add bindings for Maxim MAX20086-MAX20089
  regulator: qcom_smd: Align probe function with rpmh-regulator
  regulator: remove redundant ret variable
  regulator: qcom-labibb: OCP interrupts are not a failure while disabled
  regulator: dt-bindings: samsung,s5m8767: Move fixed string BUCK9 to 'properties'
  regulator: Introduce tps68470-regulator driver
  drivers/regulator: remove redundant ret variable
  regulator: fix bullet lists of regulator_ops comment
  regulator: Fix type of regulator-coupled-max-spread property
  regulator: maxim,max8973: Document interrupts property
  regulator: qcom-rpmh: Add support for PM8450 regulators
  regulator: qcom,rpmh: Add compatible for PM8450
  regulator: da9121: Add DA914x binding info
  regulator: da9121: Remove erroneous compatible from binding
  regulator: da9121: Add DA914x support
  regulator: da9121: Prevent current limit change when enabled
  regulator: qcom-rpmh: Add PMG1110 regulators
  dt-bindings: regulator: Add compatible for pmg1110
  regulator: qcom_spmi: Add pm8226 regulators
  ...

Documentation/devicetree/bindings/regulator/dlg,da9121.yaml

@@ -17,27 +17,39 @@ description: |
   Dialog Semiconductor DA9130 Single-channel 10A double-phase buck converter
   Dialog Semiconductor DA9131 Double-channel  5A single-phase buck converter
   Dialog Semiconductor DA9132 Double-channel  3A single-phase buck converter
-
-  Current limits
-
-  This is PER PHASE, and the current limit setting in the devices reflect
-  that with a maximum 10A limit. Allowing for transients at/near double
-  the rated current, this translates across the device range to per
-  channel figures as so...
-
-                               | DA9121    DA9122     DA9220    DA9217   DA9140
-                               | /DA9130   /DA9131    /DA9132
-    -----------------------------------------------------------------------------
-    Output current / channel   | 10000000   5000000   3000000   6000000  40000000
-    Output current / phase     |  5000000   5000000   3000000   3000000   9500000
-    -----------------------------------------------------------------------------
-    Min regulator-min-microvolt|   300000    300000    300000    300000    500000
-    Max regulator-max-microvolt|  1900000   1900000   1900000   1900000   1000000
-    Device hardware default    |  1000000   1000000   1000000   1000000   1000000
-    -----------------------------------------------------------------------------
-    Min regulator-min-microamp |  7000000   3500000   3500000   7000000  26000000
-    Max regulator-max-microamp | 20000000  10000000   6000000  12000000  78000000
-    Device hardware default    | 15000000   7500000   5500000  11000000  58000000
+  Dialog Semiconductor DA9141 Single-channel 40A   quad-phase buck converter
+  Dialog Semiconductor DA9142 Single-channel 20A double-phase buck converter
+
+  Device parameter ranges
+
+  The current limits can be set to at/near double the rated current per channel
+  to allow for transient peaks.
+  Current limit changes when the output is enabled are not supported, as a
+  precaution against undefined behaviour.
+
+  |----------------------------------------------|
+  |               | range & reset default value  |
+  | Device        |------------------------------|
+  |               | microvolt    | microamp      |
+  |----------------------------------------------|
+  | DA9121/DA9130 | Min:  300000 | Min:  7000000 |
+  |               | Max: 1900000 | Max: 20000000 |
+  |----------------------------------------------|
+  | DA9121/DA9131 | Min:  300000 | Min:  3500000 |
+  |               | Max: 1900000 | Max: 10000000 |
+  |----------------------------------------------|
+  | DA9121/DA9131 | Min:  300000 | Min:  3500000 |
+  |               | Max: 1900000 | Max:  6000000 |
+  |----------------------------------------------|
+  | DA9217        | Min:  300000 | Min:  7000000 |
+  |               | Max: 1900000 | Max: 12000000 |
+  |----------------------------------------------|
+  | DA9141        | Min:  300000 | Min: 26000000 |
+  |               | Max: 1300000 | Max: 78000000 |
+  |----------------------------------------------|
+  | DA9142        | Min:  300000 | Min: 13000000 |
+  |               | Max: 1300000 | Max: 39000000 |
+  |----------------------------------------------|
 
 properties:
   $nodename:
@@ -51,7 +63,8 @@ properties:
       - dlg,da9130
       - dlg,da9131
       - dlg,da9132
-      - dlg,da9140
+      - dlg,da9141
+      - dlg,da9142
 
   reg:
     maxItems: 1
@@ -70,26 +83,24 @@ properties:
 
   regulators:
     type: object
-    $ref: regulator.yaml#
     description: |
-      This node defines the settings for the BUCK. The content of the
-      sub-node is defined by the standard binding for regulators; see regulator.yaml.
-      The DA9121 regulator is bound using their names listed below
-      buck1 - BUCK1
-      buck2 - BUCK2       //DA9122, DA9220, DA9131, DA9132 only
+      List of regulators provided by the device
 
     patternProperties:
       "^buck([1-2])$":
         type: object
         $ref: regulator.yaml#
+        description: |
+          Properties for a single BUCK regulator
 
         properties:
-          regulator-mode:
-            maxItems: 1
-            description: Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
+          regulator-name:
+            pattern: "^BUCK([1-2])$"
+            description: |
+              BUCK2 present in DA9122, DA9220, DA9131, DA9132 only
 
           regulator-initial-mode:
-            maxItems: 1
+            enum: [ 0, 1, 2, 3 ]
             description: Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
 
           enable-gpios:
@@ -98,6 +109,7 @@ properties:
 
           dlg,ripple-cancel:
             $ref: "/schemas/types.yaml#/definitions/uint32"
+            enum: [ 0, 1, 2, 3 ]
             description: |
               Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
               Only present on multi-channel devices (DA9122, DA9220, DA9131, DA9132)

Documentation/devicetree/bindings/regulator/maxim,max20086.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/maxim,max20086.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX20086-MAX20089 Camera Power Protector
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+
+description: |
+  The MAX20086-MAX20089 are dual/quad camera power protectors, designed to
+  deliver power over coax for radar and camera modules. They support
+  software-configurable output switching and monitoring. The output voltage and
+  current limit are fixed by the hardware design.
+
+properties:
+  compatible:
+    enum:
+      - maxim,max20086
+      - maxim,max20087
+      - maxim,max20088
+      - maxim,max20089
+
+  reg:
+    maxItems: 1
+
+  enable-gpios:
+    maxItems: 1
+    description: GPIO connected to the EN pin, active high
+
+  in-supply:
+    description: Input supply for the camera outputs (IN pin, 3.0V to 15.0V)
+
+  vdd-supply:
+    description: Input supply for the device (VDD pin, 3.0V to 5.5V)
+
+  regulators:
+    type: object
+
+    patternProperties:
+      "^OUT[1-4]$":
+        type: object
+        $ref: regulator.yaml#
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - in-supply
+  - vdd-supply
+  - regulators
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - maxim,max20088
+              - maxim,max20089
+    then:
+      properties:
+        regulators:
+          properties:
+            OUT3: false
+            OUT4: false
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        regulator@28 {
+            compatible = "maxim,max20087";
+            reg = <0x28>;
+
+            in-supply = <&reg_12v0>;
+            vdd-supply = <&reg_3v3>;
+
+            enable-gpios = <&gpio 108 GPIO_ACTIVE_HIGH>;
+
+            regulators {
+                OUT1 {
+                    regulator-name = "VOUT1";
+                };
+                OUT2 {
+                    regulator-name = "VOUT2";
+                };
+                OUT3 {
+                    regulator-name = "VOUT3";
+                };
+                OUT4 {
+                    regulator-name = "VOUT4";
+                };
+            };
+        };
+    };
+...

Documentation/devicetree/bindings/regulator/maxim,max8973.yaml

@@ -86,6 +86,9 @@ properties:
   reg:
     maxItems: 1
 
+  interrupts:
+    maxItems: 1
+
 required:
   - compatible
   - reg

Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml

@@ -43,6 +43,7 @@ description: |
       For PM8150L, smps1 - smps8, ldo1 - ldo11, bob, flash, rgb
       For PM8350, smps1 - smps12, ldo1 - ldo10
       For PM8350C, smps1 - smps10, ldo1 - ldo13, bob
+      For PM8450, smps1 - smps6, ldo1 - ldo4
       For PM8998, smps1 - smps13, ldo1 - ldo28, lvs1 - lvs2
       For PMI8998, bob
       For PMR735A, smps1 - smps3, ldo1 - ldo7
@@ -62,7 +63,9 @@ properties:
       - qcom,pm8150l-rpmh-regulators
       - qcom,pm8350-rpmh-regulators
       - qcom,pm8350c-rpmh-regulators
+      - qcom,pm8450-rpmh-regulators
       - qcom,pm8998-rpmh-regulators
+      - qcom,pmg1110-rpmh-regulators
       - qcom,pmi8998-rpmh-regulators
       - qcom,pmm8155au-rpmh-regulators
       - qcom,pmr735a-rpmh-regulators

Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt

@@ -6,6 +6,7 @@ Qualcomm SPMI Regulators
 	Definition: must be one of:
 			"qcom,pm8004-regulators"
 			"qcom,pm8005-regulators"
+			"qcom,pm8226-regulators"
 			"qcom,pm8841-regulators"
 			"qcom,pm8916-regulators"
 			"qcom,pm8941-regulators"

Documentation/devicetree/bindings/regulator/regulator.yaml

@@ -218,7 +218,7 @@ properties:
     description: Array of maximum spread between voltages of coupled regulators
       in microvolts, each value in the array relates to the corresponding
       couple specified by the regulator-coupled-with property.
-    $ref: "/schemas/types.yaml#/definitions/uint32"
+    $ref: "/schemas/types.yaml#/definitions/uint32-array"
 
   regulator-max-step-microvolt:
     description: Maximum difference between current and target voltages

Documentation/devicetree/bindings/regulator/samsung,s5m8767.yaml

@@ -67,8 +67,9 @@ patternProperties:
     required:
       - regulator-name
 
+properties:
   # 9 buck
-  "^BUCK9$":
+  BUCK9:
     type: object
     $ref: regulator.yaml#
     unevaluatedProperties: false

MAINTAINERS

@@ -11653,6 +11653,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
 F:	drivers/power/supply/max17042_battery.c
 
+MAXIM MAX20086 CAMERA POWER PROTECTOR DRIVER
+M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/regulator/maxim,max20086.yaml
+F:	drivers/regulator/max20086-regulator.c
+
 MAXIM MAX77650 PMIC MFD DRIVER
 M:	Bartosz Golaszewski <brgl@bgdev.pl>
 L:	linux-kernel@vger.kernel.org

drivers/regulator/Kconfig

@@ -636,6 +636,15 @@ config REGULATOR_MAX8998
 	  via I2C bus. The provided regulator is suitable for S3C6410
 	  and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
 
+config REGULATOR_MAX20086
+	tristate "Maxim MAX20086-MAX20089 Camera Power Protectors"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  This driver controls a Maxim MAX20086-MAX20089 camera power
+	  protectorvia I2C bus. The regulator has 2 or 4 outputs depending on
+	  the device model. This driver is only capable to turn on/off them.
+
 config REGULATOR_MAX77686
 	tristate "Maxim 77686 regulator"
 	depends on MFD_MAX77686 || COMPILE_TEST
@@ -1339,6 +1348,15 @@ config REGULATOR_TPS65912
 	help
 	    This driver supports TPS65912 voltage regulator chip.
 
+config REGULATOR_TPS68470
+	tristate "TI TPS68470 PMIC Regulators Driver"
+	depends on INTEL_SKL_INT3472 || COMPILE_TEST
+	help
+	  This driver adds support for the TPS68470 PMIC to register
+	  regulators against the usual framework.
+
+	  The module will be called "tps68470-regulator".
+
 config REGULATOR_TWL4030
 	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
 	depends on TWL4030_CORE
@@ -1415,4 +1433,3 @@ config REGULATOR_QCOM_LABIBB
 	  for LCD display panel.
 
 endif
-

drivers/regulator/Makefile

@@ -78,6 +78,7 @@ obj-$(CONFIG_REGULATOR_MAX8952) += max8952.o
 obj-$(CONFIG_REGULATOR_MAX8973) += max8973-regulator.o
 obj-$(CONFIG_REGULATOR_MAX8997) += max8997-regulator.o
 obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o
+obj-$(CONFIG_REGULATOR_MAX20086) += max20086-regulator.o
 obj-$(CONFIG_REGULATOR_MAX77686) += max77686-regulator.o
 obj-$(CONFIG_REGULATOR_MAX77693) += max77693-regulator.o
 obj-$(CONFIG_REGULATOR_MAX77802) += max77802-regulator.o
@@ -159,6 +160,7 @@ obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65132) += tps65132-regulator.o
+obj-$(CONFIG_REGULATOR_TPS68470) += tps68470-regulator.o
 obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o twl6030-regulator.o
 obj-$(CONFIG_REGULATOR_UNIPHIER) += uniphier-regulator.o
 obj-$(CONFIG_REGULATOR_VCTRL) += vctrl-regulator.o

drivers/regulator/bd718x7-regulator.c

@@ -125,27 +125,6 @@ static int bd71837_get_buck34_enable_hwctrl(struct regulator_dev *rdev)
 
 	return !!(BD718XX_BUCK_RUN_ON & val);
 }
-/*
- * On BD71837 (not on BD71847, BD71850, ...)
- * Bucks 1 to 4 support DVS. PWM mode is used when voltage is changed.
- * Bucks 5 to 8 and LDOs can use PFM and must be disabled when voltage
- * is changed. Hence we return -EBUSY for these if voltage is changed
- * when BUCK/LDO is enabled.
- *
- * On BD71847, BD71850, ... The LDO voltage can be changed when LDO is
- * enabled. But if voltage is increased the LDO power-good monitoring
- * must be disabled for the duration of changing + 1mS to ensure voltage
- * has reached the higher level before HW does next under voltage detection
- * cycle.
- */
-static int bd71837_set_voltage_sel_restricted(struct regulator_dev *rdev,
-						    unsigned int sel)
-{
-	if (rdev->desc->ops->is_enabled(rdev))
-		return -EBUSY;
-
-	return regulator_set_voltage_sel_regmap(rdev, sel);
-}
 
 static void voltage_change_done(struct regulator_dev *rdev, unsigned int sel,
 				unsigned int *mask)
@@ -642,22 +621,22 @@ BD718XX_OPS(bd71837_pickable_range_buck_ops,
 	    bd718x7_set_buck_ovp);
 
 BD718XX_OPS(bd71837_ldo_regulator_ops, regulator_list_voltage_linear_range,
-	    NULL, bd71837_set_voltage_sel_restricted,
+	    NULL, rohm_regulator_set_voltage_sel_restricted,
 	    regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
 	    NULL);
 
 BD718XX_OPS(bd71837_ldo_regulator_nolinear_ops, regulator_list_voltage_table,
-	    NULL, bd71837_set_voltage_sel_restricted,
+	    NULL, rohm_regulator_set_voltage_sel_restricted,
 	    regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
 	    NULL);
 
 BD718XX_OPS(bd71837_buck_regulator_ops, regulator_list_voltage_linear_range,
-	    NULL, bd71837_set_voltage_sel_restricted,
+	    NULL, rohm_regulator_set_voltage_sel_restricted,
 	    regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
 	    NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
 
 BD718XX_OPS(bd71837_buck_regulator_nolinear_ops, regulator_list_voltage_table,
-	    regulator_map_voltage_ascend, bd71837_set_voltage_sel_restricted,
+	    regulator_map_voltage_ascend, rohm_regulator_set_voltage_sel_restricted,
 	    regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
 	    NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
 /*

drivers/regulator/da9121-regulator.c

@@ -86,6 +86,22 @@ static struct da9121_range da9121_3A_1phase_current = {
 	.reg_max = 6,
 };
 
+static struct da9121_range da914x_40A_4phase_current = {
+	.val_min = 14000000,
+	.val_max = 80000000,
+	.val_stp =  2000000,
+	.reg_min = 1,
+	.reg_max = 14,
+};
+
+static struct da9121_range da914x_20A_2phase_current = {
+	.val_min =  7000000,
+	.val_max = 40000000,
+	.val_stp =  2000000,
+	.reg_min = 1,
+	.reg_max = 14,
+};
+
 struct da9121_variant_info {
 	int num_bucks;
 	int num_phases;
@@ -97,6 +113,8 @@ static const struct da9121_variant_info variant_parameters[] = {
 	{ 2, 1, &da9121_3A_1phase_current  },	//DA9121_TYPE_DA9220_DA9132
 	{ 2, 1, &da9121_5A_1phase_current  },	//DA9121_TYPE_DA9122_DA9131
 	{ 1, 2, &da9121_6A_2phase_current  },	//DA9121_TYPE_DA9217
+	{ 1, 4, &da914x_40A_4phase_current },   //DA9121_TYPE_DA9141
+	{ 1, 2, &da914x_20A_2phase_current },   //DA9121_TYPE_DA9142
 };
 
 struct da9121_field {
@@ -253,6 +271,11 @@ static int da9121_set_current_limit(struct regulator_dev *rdev,
 		goto error;
 	}
 
+	if (rdev->desc->ops->is_enabled(rdev)) {
+		ret = -EBUSY;
+		goto error;
+	}
+
 	ret = da9121_ceiling_selector(rdev, min_ua, max_ua, &sel);
 	if (ret < 0)
 		goto error;
@@ -537,11 +560,65 @@ static const struct regulator_desc da9217_reg = {
 	.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
 };
 
+#define DA914X_MIN_MV		500
+#define DA914X_MAX_MV		1000
+#define DA914X_STEP_MV		10
+#define DA914X_MIN_SEL		(DA914X_MIN_MV / DA914X_STEP_MV)
+#define DA914X_N_VOLTAGES	(((DA914X_MAX_MV - DA914X_MIN_MV) / DA914X_STEP_MV) \
+				 + 1 + DA914X_MIN_SEL)
+
+static const struct regulator_desc da9141_reg = {
+	.id = DA9121_IDX_BUCK1,
+	.name = "DA9141",
+	.of_match = "buck1",
+	.of_parse_cb = da9121_of_parse_cb,
+	.owner = THIS_MODULE,
+	.regulators_node = of_match_ptr("regulators"),
+	.of_map_mode = da9121_map_mode,
+	.ops = &da9121_buck_ops,
+	.type = REGULATOR_VOLTAGE,
+	.n_voltages = DA914X_N_VOLTAGES,
+	.min_uV = DA914X_MIN_MV * 1000,
+	.uV_step = DA914X_STEP_MV * 1000,
+	.linear_min_sel = DA914X_MIN_SEL,
+	.vsel_reg = DA9121_REG_BUCK_BUCK1_5,
+	.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
+	.enable_reg = DA9121_REG_BUCK_BUCK1_0,
+	.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
+	/* Default value of BUCK_BUCK1_0.CH1_SRC_DVC_UP */
+	.ramp_delay = 20000,
+	/* tBUCK_EN */
+	.enable_time = 20,
+};
+
+static const struct regulator_desc da9142_reg = {
+	.id = DA9121_IDX_BUCK1,
+	.name = "DA9142 BUCK1",
+	.of_match = "buck1",
+	.of_parse_cb = da9121_of_parse_cb,
+	.owner = THIS_MODULE,
+	.regulators_node = of_match_ptr("regulators"),
+	.of_map_mode = da9121_map_mode,
+	.ops = &da9121_buck_ops,
+	.type = REGULATOR_VOLTAGE,
+	.n_voltages = DA914X_N_VOLTAGES,
+	.min_uV = DA914X_MIN_MV * 1000,
+	.uV_step = DA914X_STEP_MV * 1000,
+	.linear_min_sel = DA914X_MIN_SEL,
+	.enable_reg = DA9121_REG_BUCK_BUCK1_0,
+	.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
+	.vsel_reg = DA9121_REG_BUCK_BUCK1_5,
+	.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
+};
+
+
 static const struct regulator_desc *local_da9121_regulators[][DA9121_IDX_MAX] = {
 	[DA9121_TYPE_DA9121_DA9130] = { &da9121_reg, NULL },
 	[DA9121_TYPE_DA9220_DA9132] = { &da9220_reg[0], &da9220_reg[1] },
 	[DA9121_TYPE_DA9122_DA9131] = { &da9122_reg[0], &da9122_reg[1] },
 	[DA9121_TYPE_DA9217] = { &da9217_reg, NULL },
+	[DA9121_TYPE_DA9141] = { &da9141_reg, NULL },
+	[DA9121_TYPE_DA9142] = { &da9142_reg, NULL },
 };
 
 static void da9121_status_poll_on(struct work_struct *work)
@@ -835,7 +912,7 @@ static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip)
 		goto error;
 	}
 
-	if (device_id != DA9121_DEVICE_ID) {
+	if ((device_id != DA9121_DEVICE_ID) && (device_id != DA914x_DEVICE_ID)) {
 		dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
 		ret = -ENODEV;
 		goto error;
@@ -877,6 +954,22 @@ static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip)
 		break;
 	}
 
+	if (device_id == DA914x_DEVICE_ID) {
+		switch (chip->subvariant_id) {
+		case DA9121_SUBTYPE_DA9141:
+			type = "DA9141";
+			config_match = (variant_vrc == DA9141_VARIANT_VRC);
+			break;
+		case DA9121_SUBTYPE_DA9142:
+			type = "DA9142";
+			config_match = (variant_vrc == DA9142_VARIANT_VRC);
+			break;
+		default:
+			type = "Unknown";
+			break;
+		}
+	}
+
 	dev_info(chip->dev,
 		 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
 		 device_id, variant_id, type);
@@ -890,8 +983,10 @@ static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip)
 	variant_mrc = (variant_id & DA9121_MASK_OTP_VARIANT_ID_MRC)
 			>> DA9121_SHIFT_OTP_VARIANT_ID_MRC;
 
-	if ((device_id == DA9121_DEVICE_ID) &&
-	    (variant_mrc < DA9121_VARIANT_MRC_BASE)) {
+	if (((device_id == DA9121_DEVICE_ID) &&
+	     (variant_mrc < DA9121_VARIANT_MRC_BASE)) ||
+	    ((device_id == DA914x_DEVICE_ID) &&
+	     (variant_mrc != DA914x_VARIANT_MRC_BASE))) {
 		dev_err(chip->dev,
 			"Cannot support variant MRC: 0x%02X\n", variant_mrc);
 		ret = -EINVAL;
@@ -931,6 +1026,14 @@ static int da9121_assign_chip_model(struct i2c_client *i2c,
 		chip->variant_id = DA9121_TYPE_DA9220_DA9132;
 		regmap = &da9121_2ch_regmap_config;
 		break;
+	case DA9121_SUBTYPE_DA9141:
+		chip->variant_id = DA9121_TYPE_DA9141;
+		regmap = &da9121_1ch_regmap_config;
+		break;
+	case DA9121_SUBTYPE_DA9142:
+		chip->variant_id = DA9121_TYPE_DA9142;
+		regmap = &da9121_2ch_regmap_config;
+		break;
 	}
 
 	/* Set these up for of_regulator_match call which may want .of_map_modes */
@@ -1010,6 +1113,8 @@ static const struct of_device_id da9121_dt_ids[] = {
 	{ .compatible = "dlg,da9131", .data = (void *) DA9121_SUBTYPE_DA9131 },
 	{ .compatible = "dlg,da9220", .data = (void *) DA9121_SUBTYPE_DA9220 },
 	{ .compatible = "dlg,da9132", .data = (void *) DA9121_SUBTYPE_DA9132 },
+	{ .compatible = "dlg,da9141", .data = (void *) DA9121_SUBTYPE_DA9141 },
+	{ .compatible = "dlg,da9142", .data = (void *) DA9121_SUBTYPE_DA9142 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, da9121_dt_ids);
@@ -1065,7 +1170,7 @@ static int da9121_i2c_remove(struct i2c_client *i2c)
 {
 	struct da9121 *chip = i2c_get_clientdata(i2c);
 	const int mask_all[4] = { 0xFF, 0xFF, 0xFF, 0xFF };
-	int ret = 0;
+	int ret;
 
 	free_irq(chip->chip_irq, chip);
 	cancel_delayed_work_sync(&chip->work);
@@ -1073,7 +1178,7 @@ static int da9121_i2c_remove(struct i2c_client *i2c)
 	ret = regmap_bulk_write(chip->regmap, DA9121_REG_SYS_MASK_0, mask_all, 4);
 	if (ret != 0)
 		dev_err(chip->dev, "Failed to set IRQ masks: %d\n", ret);
-	return ret;
+	return 0;
 }
 
 static const struct i2c_device_id da9121_i2c_id[] = {
@@ -1084,6 +1189,8 @@ static const struct i2c_device_id da9121_i2c_id[] = {
 	{"da9131", DA9121_TYPE_DA9122_DA9131},
 	{"da9220", DA9121_TYPE_DA9220_DA9132},
 	{"da9132", DA9121_TYPE_DA9220_DA9132},
+	{"da9141", DA9121_TYPE_DA9141},
+	{"da9142", DA9121_TYPE_DA9142},
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, da9121_i2c_id);

drivers/regulator/da9121-regulator.h

@@ -26,7 +26,9 @@ enum da9121_variant {
 	DA9121_TYPE_DA9121_DA9130,
 	DA9121_TYPE_DA9220_DA9132,
 	DA9121_TYPE_DA9122_DA9131,
-	DA9121_TYPE_DA9217
+	DA9121_TYPE_DA9217,
+	DA9121_TYPE_DA9141,
+	DA9121_TYPE_DA9142
 };
 
 enum da9121_subvariant {
@@ -36,7 +38,9 @@ enum da9121_subvariant {
 	DA9121_SUBTYPE_DA9132,
 	DA9121_SUBTYPE_DA9122,
 	DA9121_SUBTYPE_DA9131,
-	DA9121_SUBTYPE_DA9217
+	DA9121_SUBTYPE_DA9217,
+	DA9121_SUBTYPE_DA9141,
+	DA9121_SUBTYPE_DA9142
 };
 
 /* Minimum, maximum and default polling millisecond periods are provided
@@ -70,6 +74,14 @@ enum da9121_subvariant {
 #define DA9121_REG_SYS_GPIO1_1		0x13
 #define DA9121_REG_SYS_GPIO2_0		0x14
 #define DA9121_REG_SYS_GPIO2_1		0x15
+#define DA914x_REG_SYS_GPIO3_0		0x16
+#define DA914x_REG_SYS_GPIO3_1		0x17
+#define DA914x_REG_SYS_GPIO4_0		0x18
+#define DA914x_REG_SYS_GPIO4_1		0x19
+#define DA914x_REG_SYS_ADMUX1_0		0x1A
+#define DA914x_REG_SYS_ADMUX1_1		0x1B
+#define DA914x_REG_SYS_ADMUX2_0		0x1C
+#define DA914x_REG_SYS_ADMUX2_1		0x1D
 #define DA9121_REG_BUCK_BUCK1_0		0x20
 #define DA9121_REG_BUCK_BUCK1_1		0x21
 #define DA9121_REG_BUCK_BUCK1_2		0x22
@@ -276,6 +288,7 @@ enum da9121_subvariant {
 #define DA9121_MASK_OTP_DEVICE_ID_DEV_ID		0xFF
 
 #define DA9121_DEVICE_ID	0x05
+#define DA914x_DEVICE_ID	0x26
 
 /* DA9121_REG_OTP_VARIANT_ID */
 
@@ -293,6 +306,10 @@ enum da9121_subvariant {
 #define DA9131_VARIANT_VRC	0x1
 #define DA9132_VARIANT_VRC	0x2
 
+#define DA914x_VARIANT_MRC_BASE	0x0
+#define DA9141_VARIANT_VRC	0x1
+#define DA9142_VARIANT_VRC	0x2
+
 /* DA9121_REG_OTP_CUSTOMER_ID */
 
 #define DA9121_MASK_OTP_CUSTOMER_ID_CUST_ID		0xFF

drivers/regulator/irq_helpers.c

@@ -320,7 +320,9 @@ static void init_rdev_errors(struct regulator_irq *h)
  *			IRQF_ONESHOT when requesting the (threaded) irq.
  * @common_errs:	Errors which can be flagged by this IRQ for all rdevs.
  *			When IRQ is re-enabled these errors will be cleared
- *			from all associated regulators
+ *			from all associated regulators. Use this instead of the
+ *			per_rdev_errs if you use
+ *			regulator_irq_map_event_simple() for event mapping.
  * @per_rdev_errs:	Optional error flag array describing errors specific
  *			for only some of the regulators. These errors will be
  *			or'ed with common errors. If this is given the array
@@ -395,3 +397,40 @@ void regulator_irq_helper_cancel(void **handle)
 	}
 }
 EXPORT_SYMBOL_GPL(regulator_irq_helper_cancel);
+
+/**
+ * regulator_irq_map_event_simple - regulator IRQ notification for trivial IRQs
+ *
+ * @irq:	Number of IRQ that occurred
+ * @rid:	Information about the event IRQ indicates
+ * @dev_mask:	mask indicating the regulator originating the IRQ
+ *
+ * Regulators whose IRQ has single, well defined purpose (always indicate
+ * exactly one event, and are relevant to exactly one regulator device) can
+ * use this function as their map_event callbac for their regulator IRQ
+ * notification helperk. Exactly one rdev and exactly one error (in
+ * "common_errs"-field) can be given at IRQ helper registration for
+ * regulator_irq_map_event_simple() to be viable.
+ */
+int regulator_irq_map_event_simple(int irq, struct regulator_irq_data *rid,
+			    unsigned long *dev_mask)
+{
+	int err = rid->states[0].possible_errs;
+
+	*dev_mask = 1;
+	/*
+	 * This helper should only be used in a situation where the IRQ
+	 * can indicate only one type of problem for one specific rdev.
+	 * Something fishy is going on if we are having multiple rdevs or ERROR
+	 * flags here.
+	 */
+	if (WARN_ON(rid->num_states != 1 || hweight32(err) != 1))
+		return 0;
+
+	rid->states[0].errors = err;
+	rid->states[0].notifs = regulator_err2notif(err);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_irq_map_event_simple);
+

drivers/regulator/max20086-regulator.c

+// SPDX-License-Identifier: GPL-2.0-or-later
+//
+// max20086-regulator.c - MAX20086-MAX20089 camera power protector driver
+//
+// Copyright (C) 2022 Laurent Pinchart <laurent.pinchart@idesonboard.com>
+// Copyright (C) 2018 Avnet, Inc.
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/slab.h>
+
+/* Register Offset */
+#define MAX20086_REG_MASK		0x00
+#define MAX20086_REG_CONFIG		0x01
+#define	MAX20086_REG_ID			0x02
+#define	MAX20086_REG_STAT1		0x03
+#define	MAX20086_REG_STAT2_L		0x04
+#define	MAX20086_REG_STAT2_H		0x05
+#define	MAX20086_REG_ADC1		0x06
+#define	MAX20086_REG_ADC2		0x07
+#define	MAX20086_REG_ADC3		0x08
+#define	MAX20086_REG_ADC4		0x09
+
+/* DEVICE IDs */
+#define MAX20086_DEVICE_ID_MAX20086	0x40
+#define MAX20086_DEVICE_ID_MAX20087	0x20
+#define MAX20086_DEVICE_ID_MAX20088	0x10
+#define MAX20086_DEVICE_ID_MAX20089	0x00
+#define DEVICE_ID_MASK			0xf0
+
+/* Register bits */
+#define MAX20086_EN_MASK		0x0f
+#define MAX20086_EN_OUT1		0x01
+#define MAX20086_EN_OUT2		0x02
+#define MAX20086_EN_OUT3		0x04
+#define MAX20086_EN_OUT4		0x08
+#define MAX20086_INT_DISABLE_ALL	0x3f
+
+#define MAX20086_MAX_REGULATORS		4
+
+struct max20086_chip_info {
+	u8 id;
+	unsigned int num_outputs;
+};
+
+struct max20086_regulator {
+	struct device_node *of_node;
+	struct regulator_init_data *init_data;
+	const struct regulator_desc *desc;
+	struct regulator_dev *rdev;
+};
+
+struct max20086 {
+	struct device *dev;
+	struct regmap *regmap;
+	struct gpio_desc *ena_gpiod;
+
+	const struct max20086_chip_info *info;
+
+	struct max20086_regulator regulators[MAX20086_MAX_REGULATORS];
+};
+
+static const struct regulator_ops max20086_buck_ops = {
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+};
+
+#define MAX20086_REGULATOR_DESC(n)		\
+{						\
+	.name = "OUT"#n,			\
+	.supply_name = "in",			\
+	.id = (n) - 1,				\
+	.ops = &max20086_buck_ops,		\
+	.type = REGULATOR_VOLTAGE,		\
+	.owner = THIS_MODULE,			\
+	.enable_reg = MAX20086_REG_CONFIG,	\
+	.enable_mask = 1 << ((n) - 1),		\
+	.enable_val = 1 << ((n) - 1),		\
+	.disable_val = 0,			\
+}
+
+static const char * const max20086_output_names[] = {
+	"OUT1",
+	"OUT2",
+	"OUT3",
+	"OUT4",
+};
+
+static const struct regulator_desc max20086_regulators[] = {
+	MAX20086_REGULATOR_DESC(1),
+	MAX20086_REGULATOR_DESC(2),
+	MAX20086_REGULATOR_DESC(3),
+	MAX20086_REGULATOR_DESC(4),
+};
+
+static int max20086_regulators_register(struct max20086 *chip)
+{
+	unsigned int i;
+
+	for (i = 0; i < chip->info->num_outputs; i++) {
+		struct max20086_regulator *reg = &chip->regulators[i];
+		struct regulator_config config = { };
+		struct regulator_dev *rdev;
+
+		config.dev = chip->dev;
+		config.init_data = reg->init_data;
+		config.driver_data = chip;
+		config.of_node = reg->of_node;
+		config.regmap = chip->regmap;
+		config.ena_gpiod = chip->ena_gpiod;
+
+		rdev = devm_regulator_register(chip->dev, reg->desc, &config);
+		if (IS_ERR(rdev)) {
+			dev_err(chip->dev,
+				"Failed to register regulator output %s\n",
+				reg->desc->name);
+			return PTR_ERR(rdev);
+		}
+
+		reg->rdev = rdev;
+	}
+
+	return 0;
+}
+
+static int max20086_parse_regulators_dt(struct max20086 *chip, bool *boot_on)
+{
+	struct of_regulator_match matches[MAX20086_MAX_REGULATORS] = { };
+	struct device_node *node;
+	unsigned int i;
+	int ret;
+
+	node = of_get_child_by_name(chip->dev->of_node, "regulators");
+	if (!node) {
+		dev_err(chip->dev, "regulators node not found\n");
+		return PTR_ERR(node);
+	}
+
+	for (i = 0; i < chip->info->num_outputs; ++i)
+		matches[i].name = max20086_output_names[i];
+
+	ret = of_regulator_match(chip->dev, node, matches,
+				 chip->info->num_outputs);
+	of_node_put(node);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to match regulators\n");
+		return -EINVAL;
+	}
+
+	*boot_on = false;
+
+	for (i = 0; i < chip->info->num_outputs; i++) {
+		struct max20086_regulator *reg = &chip->regulators[i];
+
+		reg->init_data = matches[i].init_data;
+		reg->of_node = matches[i].of_node;
+		reg->desc = &max20086_regulators[i];
+
+		if (reg->init_data) {
+			if (reg->init_data->constraints.always_on ||
+			    reg->init_data->constraints.boot_on)
+				*boot_on = true;
+		}
+	}
+
+	return 0;
+}
+
+static int max20086_detect(struct max20086 *chip)
+{
+	unsigned int data;
+	int ret;
+
+	ret = regmap_read(chip->regmap, MAX20086_REG_ID, &data);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to read DEVICE_ID reg: %d\n", ret);
+		return ret;
+	}
+
+	if ((data & DEVICE_ID_MASK) != chip->info->id) {
+		dev_err(chip->dev, "Invalid device ID 0x%02x\n", data);
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static bool max20086_gen_is_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX20086_REG_MASK:
+	case MAX20086_REG_CONFIG:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config max20086_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.writeable_reg = max20086_gen_is_writeable_reg,
+	.max_register = 0x9,
+	.cache_type = REGCACHE_NONE,
+};
+
+static int max20086_i2c_probe(struct i2c_client *i2c)
+{
+	struct max20086 *chip;
+	enum gpiod_flags flags;
+	bool boot_on;
+	int ret;
+
+	chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->dev = &i2c->dev;
+	chip->info = device_get_match_data(chip->dev);
+
+	i2c_set_clientdata(i2c, chip);
+
+	chip->regmap = devm_regmap_init_i2c(i2c, &max20086_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		ret = PTR_ERR(chip->regmap);
+		dev_err(chip->dev, "Failed to allocate register map: %d\n", ret);
+		return ret;
+	}
+
+	ret = max20086_parse_regulators_dt(chip, &boot_on);
+	if (ret < 0)
+		return ret;
+
+	ret = max20086_detect(chip);
+	if (ret < 0)
+		return ret;
+
+	/* Until IRQ support is added, just disable all interrupts. */
+	ret = regmap_update_bits(chip->regmap, MAX20086_REG_MASK,
+				 MAX20086_INT_DISABLE_ALL,
+				 MAX20086_INT_DISABLE_ALL);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to disable interrupts: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * Get the enable GPIO. If any of the outputs is marked as being
+	 * enabled at boot, request the GPIO with an initial high state to
+	 * avoid disabling outputs that may have been turned on by the boot
+	 * loader. Otherwise, request it with a low state to enter lower-power
+	 * shutdown.
+	 */
+	flags = boot_on ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
+	chip->ena_gpiod = devm_gpiod_get(chip->dev, "enable", flags);
+	if (IS_ERR(chip->ena_gpiod)) {
+		ret = PTR_ERR(chip->ena_gpiod);
+		dev_err(chip->dev, "Failed to get enable GPIO: %d\n", ret);
+		return ret;
+	}
+
+	ret = max20086_regulators_register(chip);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to register regulators: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct i2c_device_id max20086_i2c_id[] = {
+	{ "max20086" },
+	{ "max20087" },
+	{ "max20088" },
+	{ "max20089" },
+	{ /* Sentinel */ },
+};
+
+MODULE_DEVICE_TABLE(i2c, max20086_i2c_id);
+
+static const struct of_device_id max20086_dt_ids[] = {
+	{
+		.compatible = "maxim,max20086",
+		.data = &(const struct max20086_chip_info) {
+			.id = MAX20086_DEVICE_ID_MAX20086,
+			.num_outputs = 4,
+		}
+	}, {
+		.compatible = "maxim,max20087",
+		.data = &(const struct max20086_chip_info) {
+			.id = MAX20086_DEVICE_ID_MAX20087,
+			.num_outputs = 4,
+		}
+	}, {
+		.compatible = "maxim,max20088",
+		.data = &(const struct max20086_chip_info) {
+			.id = MAX20086_DEVICE_ID_MAX20088,
+			.num_outputs = 2,
+		}
+	}, {
+		.compatible = "maxim,max20089",
+		.data = &(const struct max20086_chip_info) {
+			.id = MAX20086_DEVICE_ID_MAX20089,
+			.num_outputs = 2,
+		}
+	},
+	{ /* Sentinel */ },
+};
+
+MODULE_DEVICE_TABLE(of, max20086_dt_ids);
+
+static struct i2c_driver max20086_regulator_driver = {
+	.driver = {
+		.name = "max20086",
+		.of_match_table = of_match_ptr(max20086_dt_ids),
+	},
+	.probe_new = max20086_i2c_probe,
+	.id_table = max20086_i2c_id,
+};
+
+module_i2c_driver(max20086_regulator_driver);
+
+MODULE_AUTHOR("Watson Chow <watson.chow@avnet.com>");
+MODULE_DESCRIPTION("MAX20086-MAX20089 Camera Power Protector Driver");
+MODULE_LICENSE("GPL");

drivers/regulator/mt6380-regulator.c

@@ -183,7 +183,7 @@ static const unsigned int ldo_volt_table4[] = {
 static int mt6380_regulator_set_mode(struct regulator_dev *rdev,
 				     unsigned int mode)
 {
-	int ret, val = 0;
+	int val = 0;
 	struct mt6380_regulator_info *info = rdev_get_drvdata(rdev);
 
 	switch (mode) {
@@ -199,10 +199,8 @@ static int mt6380_regulator_set_mode(struct regulator_dev *rdev,
 
 	val <<= ffs(info->modeset_mask) - 1;
 
-	ret = regmap_update_bits(rdev->regmap, info->modeset_reg,
+	return regmap_update_bits(rdev->regmap, info->modeset_reg,
 				 info->modeset_mask, val);
-
-	return ret;
 }
 
 static unsigned int mt6380_regulator_get_mode(struct regulator_dev *rdev)

drivers/regulator/qcom-labibb-regulator.c

@@ -260,7 +260,7 @@ static irqreturn_t qcom_labibb_ocp_isr(int irq, void *chip)
 
 	/* If the regulator is not enabled, this is a fake event */
 	if (!ops->is_enabled(vreg->rdev))
-		return 0;
+		return IRQ_HANDLED;
 
 	/* If we tried to recover for too many times it's not getting better */
 	if (vreg->ocp_irq_count > LABIBB_MAX_OCP_COUNT)

drivers/regulator/qcom-rpmh-regulator.c

@@ -814,6 +814,11 @@ static const struct rpmh_vreg_init_data pm8998_vreg_data[] = {
 	{}
 };
 
+static const struct rpmh_vreg_init_data pmg1110_vreg_data[] = {
+	RPMH_VREG("smps1",  "smp%s1",  &pmic5_ftsmps510,  "vdd-s1"),
+	{}
+};
+
 static const struct rpmh_vreg_init_data pmi8998_vreg_data[] = {
 	RPMH_VREG("bob",    "bob%s1",  &pmic4_bob,       "vdd-bob"),
 	{}
@@ -969,6 +974,20 @@ static const struct rpmh_vreg_init_data pm8350c_vreg_data[] = {
 	{}
 };
 
+static const struct rpmh_vreg_init_data pm8450_vreg_data[] = {
+	RPMH_VREG("smps1",  "smp%s1",  &pmic5_ftsmps520, "vdd-s1"),
+	RPMH_VREG("smps2",  "smp%s2",  &pmic5_ftsmps520, "vdd-s2"),
+	RPMH_VREG("smps3",  "smp%s3",  &pmic5_ftsmps520, "vdd-s3"),
+	RPMH_VREG("smps4",  "smp%s4",  &pmic5_ftsmps520, "vdd-s4"),
+	RPMH_VREG("smps5",  "smp%s5",  &pmic5_ftsmps520, "vdd-s5"),
+	RPMH_VREG("smps6",  "smp%s6",  &pmic5_ftsmps520, "vdd-s6"),
+	RPMH_VREG("ldo1",   "ldo%s1",  &pmic5_nldo,      "vdd-l1"),
+	RPMH_VREG("ldo2",   "ldo%s2",  &pmic5_nldo,      "vdd-l2"),
+	RPMH_VREG("ldo3",   "ldo%s3",  &pmic5_nldo,      "vdd-l3"),
+	RPMH_VREG("ldo4",   "ldo%s4",  &pmic5_pldo_lv,   "vdd-l4"),
+	{}
+};
+
 static const struct rpmh_vreg_init_data pm8009_vreg_data[] = {
 	RPMH_VREG("smps1",  "smp%s1",  &pmic5_hfsmps510, "vdd-s1"),
 	RPMH_VREG("smps2",  "smp%s2",  &pmic5_hfsmps515, "vdd-s2"),
@@ -1213,10 +1232,18 @@ static const struct of_device_id __maybe_unused rpmh_regulator_match_table[] = {
 		.compatible = "qcom,pm8350c-rpmh-regulators",
 		.data = pm8350c_vreg_data,
 	},
+	{
+		.compatible = "qcom,pm8450-rpmh-regulators",
+		.data = pm8450_vreg_data,
+	},
 	{
 		.compatible = "qcom,pm8998-rpmh-regulators",
 		.data = pm8998_vreg_data,
 	},
+	{
+		.compatible = "qcom,pmg1110-rpmh-regulators",
+		.data = pmg1110_vreg_data,
+	},
 	{
 		.compatible = "qcom,pmi8998-rpmh-regulators",
 		.data = pmi8998_vreg_data,

drivers/regulator/qcom_smd-regulator.c

@@ -9,6 +9,7 @@
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/soc/qcom/smd-rpm.h>
 
 struct qcom_rpm_reg {
@@ -1239,52 +1240,91 @@ static const struct of_device_id rpm_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, rpm_of_match);
 
-static int rpm_reg_probe(struct platform_device *pdev)
+/**
+ * rpm_regulator_init_vreg() - initialize all attributes of a qcom_smd-regulator
+ * @vreg:		Pointer to the individual qcom_smd-regulator resource
+ * @dev:		Pointer to the top level qcom_smd-regulator PMIC device
+ * @node:		Pointer to the individual qcom_smd-regulator resource
+ *			device node
+ * @rpm:		Pointer to the rpm bus node
+ * @pmic_rpm_data:	Pointer to a null-terminated array of qcom_smd-regulator
+ *			resources defined for the top level PMIC device
+ *
+ * Return: 0 on success, errno on failure
+ */
+static int rpm_regulator_init_vreg(struct qcom_rpm_reg *vreg, struct device *dev,
+				   struct device_node *node, struct qcom_smd_rpm *rpm,
+				   const struct rpm_regulator_data *pmic_rpm_data)
 {
-	const struct rpm_regulator_data *reg;
-	const struct of_device_id *match;
-	struct regulator_config config = { };
+	struct regulator_config config = {};
+	const struct rpm_regulator_data *rpm_data;
 	struct regulator_dev *rdev;
+	int ret;
+
+	for (rpm_data = pmic_rpm_data; rpm_data->name; rpm_data++)
+		if (of_node_name_eq(node, rpm_data->name))
+			break;
+
+	if (!rpm_data->name) {
+		dev_err(dev, "Unknown regulator %pOFn\n", node);
+		return -EINVAL;
+	}
+
+	vreg->dev	= dev;
+	vreg->rpm	= rpm;
+	vreg->type	= rpm_data->type;
+	vreg->id	= rpm_data->id;
+
+	memcpy(&vreg->desc, rpm_data->desc, sizeof(vreg->desc));
+	vreg->desc.name = rpm_data->name;
+	vreg->desc.supply_name = rpm_data->supply;
+	vreg->desc.owner = THIS_MODULE;
+	vreg->desc.type = REGULATOR_VOLTAGE;
+	vreg->desc.of_match = rpm_data->name;
+
+	config.dev		= dev;
+	config.of_node		= node;
+	config.driver_data	= vreg;
+
+	rdev = devm_regulator_register(dev, &vreg->desc, &config);
+	if (IS_ERR(rdev)) {
+		ret = PTR_ERR(rdev);
+		dev_err(dev, "%pOFn: devm_regulator_register() failed, ret=%d\n", node, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int rpm_reg_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct rpm_regulator_data *vreg_data;
+	struct device_node *node;
 	struct qcom_rpm_reg *vreg;
 	struct qcom_smd_rpm *rpm;
+	int ret;
 
 	rpm = dev_get_drvdata(pdev->dev.parent);
 	if (!rpm) {
-		dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
+		dev_err(&pdev->dev, "Unable to retrieve handle to rpm\n");
 		return -ENODEV;
 	}
 
-	match = of_match_device(rpm_of_match, &pdev->dev);
-	if (!match) {
-		dev_err(&pdev->dev, "failed to match device\n");
+	vreg_data = of_device_get_match_data(dev);
+	if (!vreg_data)
 		return -ENODEV;
-	}
 
-	for (reg = match->data; reg->name; reg++) {
+	for_each_available_child_of_node(dev->of_node, node) {
 		vreg = devm_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
 		if (!vreg)
 			return -ENOMEM;
 
-		vreg->dev = &pdev->dev;
-		vreg->type = reg->type;
-		vreg->id = reg->id;
-		vreg->rpm = rpm;
-
-		memcpy(&vreg->desc, reg->desc, sizeof(vreg->desc));
-
-		vreg->desc.id = -1;
-		vreg->desc.owner = THIS_MODULE;
-		vreg->desc.type = REGULATOR_VOLTAGE;
-		vreg->desc.name = reg->name;
-		vreg->desc.supply_name = reg->supply;
-		vreg->desc.of_match = reg->name;
-
-		config.dev = &pdev->dev;
-		config.driver_data = vreg;
-		rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
-		if (IS_ERR(rdev)) {
-			dev_err(&pdev->dev, "failed to register %s\n", reg->name);
-			return PTR_ERR(rdev);
+		ret = rpm_regulator_init_vreg(vreg, dev, node, rpm, vreg_data);
+
+		if (ret < 0) {
+			of_node_put(node);
+			return ret;
 		}
 	}
 

drivers/regulator/qcom_spmi-regulator.c

@@ -1895,6 +1895,44 @@ static const struct spmi_regulator_data pm8941_regulators[] = {
 	{ }
 };
 
+static const struct spmi_regulator_data pm8226_regulators[] = {
+	{ "s1", 0x1400, "vdd_s1", },
+	{ "s2", 0x1700, "vdd_s2", },
+	{ "s3", 0x1a00, "vdd_s3", },
+	{ "s4", 0x1d00, "vdd_s4", },
+	{ "s5", 0x2000, "vdd_s5", },
+	{ "l1", 0x4000, "vdd_l1_l2_l4_l5", },
+	{ "l2", 0x4100, "vdd_l1_l2_l4_l5", },
+	{ "l3", 0x4200, "vdd_l3_l24_l26", },
+	{ "l4", 0x4300, "vdd_l1_l2_l4_l5", },
+	{ "l5", 0x4400, "vdd_l1_l2_l4_l5", },
+	{ "l6", 0x4500, "vdd_l6_l7_l8_l9_l27", },
+	{ "l7", 0x4600, "vdd_l6_l7_l8_l9_l27", },
+	{ "l8", 0x4700, "vdd_l6_l7_l8_l9_l27", },
+	{ "l9", 0x4800, "vdd_l6_l7_l8_l9_l27", },
+	{ "l10", 0x4900, "vdd_l10_l11_l13", },
+	{ "l11", 0x4a00, "vdd_l10_l11_l13", },
+	{ "l12", 0x4b00, "vdd_l12_l14", },
+	{ "l13", 0x4c00, "vdd_l10_l11_l13", },
+	{ "l14", 0x4d00, "vdd_l12_l14", },
+	{ "l15", 0x4e00, "vdd_l15_l16_l17_l18", },
+	{ "l16", 0x4f00, "vdd_l15_l16_l17_l18", },
+	{ "l17", 0x5000, "vdd_l15_l16_l17_l18", },
+	{ "l18", 0x5100, "vdd_l15_l16_l17_l18", },
+	{ "l19", 0x5200, "vdd_l19_l20_l21_l22_l23_l28", },
+	{ "l20", 0x5300, "vdd_l19_l20_l21_l22_l23_l28", },
+	{ "l21", 0x5400, "vdd_l19_l20_l21_l22_l23_l28", },
+	{ "l22", 0x5500, "vdd_l19_l20_l21_l22_l23_l28", },
+	{ "l23", 0x5600, "vdd_l19_l20_l21_l22_l23_l28", },
+	{ "l24", 0x5700, "vdd_l3_l24_l26", },
+	{ "l25", 0x5800, "vdd_l25", },
+	{ "l26", 0x5900, "vdd_l3_l24_l26", },
+	{ "l27", 0x5a00, "vdd_l6_l7_l8_l9_l27", },
+	{ "l28", 0x5b00, "vdd_l19_l20_l21_l22_l23_l28", },
+	{ "lvs1", 0x8000, "vdd_lvs1", },
+	{ }
+};
+
 static const struct spmi_regulator_data pm8841_regulators[] = {
 	{ "s1", 0x1400, "vdd_s1", },
 	{ "s2", 0x1700, "vdd_s2", NULL, 0x1c08 },
@@ -2095,6 +2133,7 @@ static const struct spmi_regulator_data pms405_regulators[] = {
 static const struct of_device_id qcom_spmi_regulator_match[] = {
 	{ .compatible = "qcom,pm8004-regulators", .data = &pm8004_regulators },
 	{ .compatible = "qcom,pm8005-regulators", .data = &pm8005_regulators },
+	{ .compatible = "qcom,pm8226-regulators", .data = &pm8226_regulators },
 	{ .compatible = "qcom,pm8841-regulators", .data = &pm8841_regulators },
 	{ .compatible = "qcom,pm8916-regulators", .data = &pm8916_regulators },
 	{ .compatible = "qcom,pm8941-regulators", .data = &pm8941_regulators },

drivers/regulator/rohm-regulator.c

@@ -112,6 +112,22 @@ int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
 }
 EXPORT_SYMBOL(rohm_regulator_set_dvs_levels);
 
+/*
+ * Few ROHM PMIC ICs have constrains on voltage changing:
+ * BD71837 - only buck 1-4 voltages can be changed when they are enabled.
+ * Other bucks and all LDOs must be disabled when voltage is changed.
+ * BD96801 - LDO voltage levels can be changed when LDOs are disabled.
+ */
+int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
+					      unsigned int sel)
+{
+	if (rdev->desc->ops->is_enabled(rdev))
+		return -EBUSY;
+
+	return regulator_set_voltage_sel_regmap(rdev, sel);
+}
+EXPORT_SYMBOL_GPL(rohm_regulator_set_voltage_sel_restricted);
+
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
 MODULE_DESCRIPTION("Generic helpers for ROHM PMIC regulator drivers");

drivers/regulator/tps68470-regulator.c

+// SPDX-License-Identifier: GPL-2.0
+//
+// Regulator driver for TPS68470 PMIC
+//
+// Copyright (c) 2021 Red Hat Inc.
+// Copyright (C) 2018 Intel Corporation
+//
+// Authors:
+//	Hans de Goede <hdegoede@redhat.com>
+//	Zaikuo Wang <zaikuo.wang@intel.com>
+//	Tianshu Qiu <tian.shu.qiu@intel.com>
+//	Jian Xu Zheng <jian.xu.zheng@intel.com>
+//	Yuning Pu <yuning.pu@intel.com>
+//	Rajmohan Mani <rajmohan.mani@intel.com>
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps68470.h>
+#include <linux/module.h>
+#include <linux/platform_data/tps68470.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+struct tps68470_regulator_data {
+	struct clk *clk;
+};
+
+#define TPS68470_REGULATOR(_name, _id, _ops, _n,			\
+			   _vr, _vm, _er, _em, _lr, _nlr)		\
+	[TPS68470_ ## _name] = {					\
+		.name			= # _name,			\
+		.id			= _id,				\
+		.ops			= &_ops,			\
+		.n_voltages		= _n,				\
+		.type			= REGULATOR_VOLTAGE,		\
+		.owner			= THIS_MODULE,			\
+		.vsel_reg		= _vr,				\
+		.vsel_mask		= _vm,				\
+		.enable_reg		= _er,				\
+		.enable_mask		= _em,				\
+		.linear_ranges		= _lr,				\
+		.n_linear_ranges	= _nlr,				\
+	}
+
+static const struct linear_range tps68470_ldo_ranges[] = {
+	REGULATOR_LINEAR_RANGE(875000, 0, 125, 17800),
+};
+
+static const struct linear_range tps68470_core_ranges[] = {
+	REGULATOR_LINEAR_RANGE(900000, 0, 42, 25000),
+};
+
+static int tps68470_regulator_enable(struct regulator_dev *rdev)
+{
+	struct tps68470_regulator_data *data = rdev->reg_data;
+	int ret;
+
+	/* The Core buck regulator needs the PMIC's PLL to be enabled */
+	if (rdev->desc->id == TPS68470_CORE) {
+		ret = clk_prepare_enable(data->clk);
+		if (ret) {
+			dev_err(&rdev->dev, "Error enabling TPS68470 clock\n");
+			return ret;
+		}
+	}
+
+	return regulator_enable_regmap(rdev);
+}
+
+static int tps68470_regulator_disable(struct regulator_dev *rdev)
+{
+	struct tps68470_regulator_data *data = rdev->reg_data;
+
+	if (rdev->desc->id == TPS68470_CORE)
+		clk_disable_unprepare(data->clk);
+
+	return regulator_disable_regmap(rdev);
+}
+
+/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
+static const struct regulator_ops tps68470_regulator_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= tps68470_regulator_enable,
+	.disable		= tps68470_regulator_disable,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+};
+
+static const struct regulator_ops tps68470_always_on_reg_ops = {
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+};
+
+static const struct regulator_desc regulators[] = {
+	TPS68470_REGULATOR(CORE, TPS68470_CORE, tps68470_regulator_ops, 43,
+			   TPS68470_REG_VDVAL, TPS68470_VDVAL_DVOLT_MASK,
+			   TPS68470_REG_VDCTL, TPS68470_VDCTL_EN_MASK,
+			   tps68470_core_ranges, ARRAY_SIZE(tps68470_core_ranges)),
+	TPS68470_REGULATOR(ANA, TPS68470_ANA, tps68470_regulator_ops, 126,
+			   TPS68470_REG_VAVAL, TPS68470_VAVAL_AVOLT_MASK,
+			   TPS68470_REG_VACTL, TPS68470_VACTL_EN_MASK,
+			   tps68470_ldo_ranges, ARRAY_SIZE(tps68470_ldo_ranges)),
+	TPS68470_REGULATOR(VCM, TPS68470_VCM, tps68470_regulator_ops, 126,
+			   TPS68470_REG_VCMVAL, TPS68470_VCMVAL_VCVOLT_MASK,
+			   TPS68470_REG_VCMCTL, TPS68470_VCMCTL_EN_MASK,
+			   tps68470_ldo_ranges, ARRAY_SIZE(tps68470_ldo_ranges)),
+	TPS68470_REGULATOR(VIO, TPS68470_VIO, tps68470_always_on_reg_ops, 126,
+			   TPS68470_REG_VIOVAL, TPS68470_VIOVAL_IOVOLT_MASK,
+			   0, 0,
+			   tps68470_ldo_ranges, ARRAY_SIZE(tps68470_ldo_ranges)),
+/*
+ * (1) This regulator must have the same voltage as VIO if S_IO LDO is used to
+ *     power a sensor/VCM which I2C is daisy chained behind the PMIC.
+ * (2) If there is no I2C daisy chain it can be set freely.
+ */
+	TPS68470_REGULATOR(VSIO, TPS68470_VSIO, tps68470_regulator_ops, 126,
+			   TPS68470_REG_VSIOVAL, TPS68470_VSIOVAL_IOVOLT_MASK,
+			   TPS68470_REG_S_I2C_CTL, TPS68470_S_I2C_CTL_EN_MASK,
+			   tps68470_ldo_ranges, ARRAY_SIZE(tps68470_ldo_ranges)),
+	TPS68470_REGULATOR(AUX1, TPS68470_AUX1, tps68470_regulator_ops, 126,
+			   TPS68470_REG_VAUX1VAL, TPS68470_VAUX1VAL_AUX1VOLT_MASK,
+			   TPS68470_REG_VAUX1CTL, TPS68470_VAUX1CTL_EN_MASK,
+			   tps68470_ldo_ranges, ARRAY_SIZE(tps68470_ldo_ranges)),
+	TPS68470_REGULATOR(AUX2, TPS68470_AUX2, tps68470_regulator_ops, 126,
+			   TPS68470_REG_VAUX2VAL, TPS68470_VAUX2VAL_AUX2VOLT_MASK,
+			   TPS68470_REG_VAUX2CTL, TPS68470_VAUX2CTL_EN_MASK,
+			   tps68470_ldo_ranges, ARRAY_SIZE(tps68470_ldo_ranges)),
+};
+
+static int tps68470_regulator_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct tps68470_regulator_platform_data *pdata = dev_get_platdata(dev);
+	struct tps68470_regulator_data *data;
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+	int i;
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->clk = devm_clk_get(dev, "tps68470-clk");
+	if (IS_ERR(data->clk))
+		return dev_err_probe(dev, PTR_ERR(data->clk), "getting tps68470-clk\n");
+
+	config.dev = dev->parent;
+	config.regmap = dev_get_drvdata(dev->parent);
+	config.driver_data = data;
+
+	for (i = 0; i < TPS68470_NUM_REGULATORS; i++) {
+		if (pdata)
+			config.init_data = pdata->reg_init_data[i];
+		else
+			config.init_data = NULL;
+
+		rdev = devm_regulator_register(dev, &regulators[i], &config);
+		if (IS_ERR(rdev))
+			return dev_err_probe(dev, PTR_ERR(rdev),
+					     "registering %s regulator\n",
+					     regulators[i].name);
+	}
+
+	return 0;
+}
+
+static struct platform_driver tps68470_regulator_driver = {
+	.driver = {
+		.name = "tps68470-regulator",
+	},
+	.probe = tps68470_regulator_probe,
+};
+
+/*
+ * The ACPI tps68470 probe-ordering depends on the clk/gpio/regulator drivers
+ * registering before the drivers for the camera-sensors which use them bind.
+ * subsys_initcall() ensures this when the drivers are builtin.
+ */
+static int __init tps68470_regulator_init(void)
+{
+	return platform_driver_register(&tps68470_regulator_driver);
+}
+subsys_initcall(tps68470_regulator_init);
+
+static void __exit tps68470_regulator_exit(void)
+{
+	platform_driver_unregister(&tps68470_regulator_driver);
+}
+module_exit(tps68470_regulator_exit);
+
+MODULE_ALIAS("platform:tps68470-regulator");
+MODULE_DESCRIPTION("TPS68470 voltage regulator driver");
+MODULE_LICENSE("GPL v2");

drivers/regulator/twl-regulator.c

@@ -196,7 +196,6 @@ static int twl4030reg_enable(struct regulator_dev *rdev)
 {
 	struct twlreg_info	*info = rdev_get_drvdata(rdev);
 	int			grp;
-	int			ret;
 
 	grp = twlreg_grp(rdev);
 	if (grp < 0)
@@ -204,16 +203,13 @@ static int twl4030reg_enable(struct regulator_dev *rdev)
 
 	grp |= P1_GRP_4030;
 
-	ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
-
-	return ret;
+	return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
 }
 
 static int twl4030reg_disable(struct regulator_dev *rdev)
 {
 	struct twlreg_info	*info = rdev_get_drvdata(rdev);
 	int			grp;
-	int			ret;
 
 	grp = twlreg_grp(rdev);
 	if (grp < 0)
@@ -221,9 +217,7 @@ static int twl4030reg_disable(struct regulator_dev *rdev)
 
 	grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
 
-	ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
-
-	return ret;
+	return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
 }
 
 static int twl4030reg_get_status(struct regulator_dev *rdev)

include/linux/mfd/rohm-generic.h

@@ -80,14 +80,8 @@ int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
 				  const struct regulator_desc *desc,
 				  struct regmap *regmap);
 
-#else
-static inline int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
-						struct device_node *np,
-						const struct regulator_desc *desc,
-						struct regmap *regmap)
-{
-	return 0;
-}
+int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
+					      unsigned int sel);
 #endif
 
 #endif

include/linux/regulator/driver.h

@@ -90,22 +90,28 @@ enum regulator_detection_severity {
  * @set_over_current_protection: Support enabling of and setting limits for over
  *	current situation detection. Detection can be configured for three
  *	levels of severity.
- *	REGULATOR_SEVERITY_PROT should automatically shut down the regulator(s).
- *	REGULATOR_SEVERITY_ERR should indicate that over-current situation is
- *		caused by an unrecoverable error but HW does not perform
- *		automatic shut down.
- *	REGULATOR_SEVERITY_WARN should indicate situation where hardware is
- *		still believed to not be damaged but that a board sepcific
- *		recovery action is needed. If lim_uA is 0 the limit should not
- *		be changed but the detection should just be enabled/disabled as
- *		is requested.
+ *
+ *	- REGULATOR_SEVERITY_PROT should automatically shut down the regulator(s).
+ *
+ *	- REGULATOR_SEVERITY_ERR should indicate that over-current situation is
+ *		  caused by an unrecoverable error but HW does not perform
+ *		  automatic shut down.
+ *
+ *	- REGULATOR_SEVERITY_WARN should indicate situation where hardware is
+ *		  still believed to not be damaged but that a board sepcific
+ *		  recovery action is needed. If lim_uA is 0 the limit should not
+ *		  be changed but the detection should just be enabled/disabled as
+ *		  is requested.
+ *
  * @set_over_voltage_protection: Support enabling of and setting limits for over
  *	voltage situation detection. Detection can be configured for same
- *	severities as over current protection.
+ *	severities as over current protection. Units of uV.
  * @set_under_voltage_protection: Support enabling of and setting limits for
- *	under situation detection.
+ *	under voltage situation detection. Detection can be configured for same
+ *	severities as over current protection. Units of uV.
  * @set_thermal_protection: Support enabling of and setting limits for over
- *	temperature situation detection.
+ *	temperature situation detection.Detection can be configured for same
+ *	severities as over current protection. Units of degree Kelvin.
  *
  * @set_active_discharge: Set active discharge enable/disable of regulators.
  *
@@ -554,7 +560,6 @@ struct regulator_irq_data {
  */
 struct regulator_irq_desc {
 	const char *name;
-	int irq_flags;
 	int fatal_cnt;
 	int reread_ms;
 	int irq_off_ms;
@@ -646,6 +651,40 @@ struct regulator_dev {
 	spinlock_t err_lock;
 };
 
+/*
+ * Convert error flags to corresponding notifications.
+ *
+ * Can be used by drivers which use the notification helpers to
+ * find out correct notification flags based on the error flags. Drivers
+ * can avoid storing both supported notification and error flags which
+ * may save few bytes.
+ */
+static inline int regulator_err2notif(int err)
+{
+	switch (err) {
+	case REGULATOR_ERROR_UNDER_VOLTAGE:
+		return REGULATOR_EVENT_UNDER_VOLTAGE;
+	case REGULATOR_ERROR_OVER_CURRENT:
+		return REGULATOR_EVENT_OVER_CURRENT;
+	case REGULATOR_ERROR_REGULATION_OUT:
+		return REGULATOR_EVENT_REGULATION_OUT;
+	case REGULATOR_ERROR_FAIL:
+		return REGULATOR_EVENT_FAIL;
+	case REGULATOR_ERROR_OVER_TEMP:
+		return REGULATOR_EVENT_OVER_TEMP;
+	case REGULATOR_ERROR_UNDER_VOLTAGE_WARN:
+		return REGULATOR_EVENT_UNDER_VOLTAGE_WARN;
+	case REGULATOR_ERROR_OVER_CURRENT_WARN:
+		return REGULATOR_EVENT_OVER_CURRENT_WARN;
+	case REGULATOR_ERROR_OVER_VOLTAGE_WARN:
+		return REGULATOR_EVENT_OVER_VOLTAGE_WARN;
+	case REGULATOR_ERROR_OVER_TEMP_WARN:
+		return REGULATOR_EVENT_OVER_TEMP_WARN;
+	}
+	return 0;
+}
+
+
 struct regulator_dev *
 regulator_register(const struct regulator_desc *regulator_desc,
 		   const struct regulator_config *config);
@@ -667,6 +706,8 @@ void *regulator_irq_helper(struct device *dev,
 			   int irq_flags, int common_errs, int *per_rdev_errs,
 			   struct regulator_dev **rdev, int rdev_amount);
 void regulator_irq_helper_cancel(void **handle);
+int regulator_irq_map_event_simple(int irq, struct regulator_irq_data *rid,
+				   unsigned long *dev_mask);
 
 void *rdev_get_drvdata(struct regulator_dev *rdev);
 struct device *rdev_get_dev(struct regulator_dev *rdev);