Merge tag 'regulator-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This has been a quiet release for the regulator API, a few new drivers
  and the usual fixes and cleanup traffic but not much else going on:

   - Optimisations for the handling of voltage enumeration, especially
     with sparse selector sets, from Claudiu Beznea.

   - Support for several ARM SCMI regulators, Dialog DA9121, NXP PF8x00,
     Qualcomm PMX55, PM8350 and PM8350c

  The addition of the SCMI regulator driver (which controls regulators
  via system firmware) means that we've pulled in the support for the
  underlying firmware operations from the firmware tree"

* tag 'regulator-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (53 commits)
  regulator: mc13892-regulator: convert comma to semicolon
  regulator: pfuze100: Convert the driver to DT-only
  regulator: max14577: Add proper module aliases strings
  regulator: da9121: Potential Oops in da9121_assign_chip_model()
  regulator: da9121: Fix index used for DT property
  regulator: da9121: Remove uninitialised string variable
  regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x
  regulator: qcom-rpmh: Add support for PM8350/PM8350c
  regulator: dt-bindings: Add PM8350x compatibles
  regulator: da9121: include linux/gpio/consumer.h
  regulator: da9121: Mark some symbols with static keyword
  regulator: da9121: Request IRQ directly and free in release function to avoid masking race
  regulator: da9121: add interrupt support
  regulator: da9121: add mode support
  regulator: da9121: add current support
  regulator: da9121: Update registration to support multiple buck variants
  regulator: da9121: Add support for device variants via devicetree
  regulator: da9121: Add device variant descriptors
  regulator: da9121: Add device variant regmaps
  regulator: da9121: Add device variants
  ...

5 files changed, 125 insertions, 6 deletions

diff --git a/include/dt-bindings/regulator/dlg,da9121-regulator.h b/include/dt-bindings/regulator/dlg,da9121-regulator.h
new file mode 100644
index 000000000000..954edf633ce7
--- /dev/null
+++ b/include/dt-bindings/regulator/dlg,da9121-regulator.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _DT_BINDINGS_REGULATOR_DLG_DA9121_H
+#define _DT_BINDINGS_REGULATOR_DLG_DA9121_H
+
+/*
+ * These buck mode constants may be used to specify values in device tree
+ * properties (e.g. regulator-initial-mode).
+ * A description of the following modes is in the manufacturers datasheet.
+ */
+
+#define DA9121_BUCK_MODE_FORCE_PFM		0
+#define DA9121_BUCK_MODE_FORCE_PWM		1
+#define DA9121_BUCK_MODE_FORCE_PWM_SHEDDING	2
+#define DA9121_BUCK_MODE_AUTO			3
+
+#define DA9121_BUCK_RIPPLE_CANCEL_NONE		0
+#define DA9121_BUCK_RIPPLE_CANCEL_SMALL		1
+#define DA9121_BUCK_RIPPLE_CANCEL_MID		2
+#define DA9121_BUCK_RIPPLE_CANCEL_LARGE		3
+
+#endif
diff --git a/include/linux/regulator/da9121.h b/include/linux/regulator/da9121.h
new file mode 100644
index 000000000000..62d9d257dc25
--- /dev/null
+++ b/include/linux/regulator/da9121.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * DA9121 Single-channel dual-phase 10A buck converter
+ * DA9130 Single-channel dual-phase 10A buck converter (Automotive)
+ * DA9217 Single-channel dual-phase  6A buck converter
+ * DA9122 Dual-channel single-phase  5A buck converter
+ * DA9131 Dual-channel single-phase  5A buck converter (Automotive)
+ * DA9220 Dual-channel single-phase  3A buck converter
+ * DA9132 Dual-channel single-phase  3A buck converter (Automotive)
+ *
+ * Copyright (C) 2020  Dialog Semiconductor
+ *
+ * Authors: Adam Ward, Dialog Semiconductor
+ */
+
+#ifndef __LINUX_REGULATOR_DA9121_H
+#define __LINUX_REGULATOR_DA9121_H
+
+#include <linux/regulator/machine.h>
+
+struct gpio_desc;
+
+enum {
+	DA9121_IDX_BUCK1,
+	DA9121_IDX_BUCK2,
+	DA9121_IDX_MAX
+};
+
+struct da9121_pdata {
+	int num_buck;
+	struct gpio_desc *gpiod_ren[DA9121_IDX_MAX];
+	struct device_node *reg_node[DA9121_IDX_MAX];
+	struct regulator_init_data *init_data[DA9121_IDX_MAX];
+};
+
+#endif
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 11cade73726c..d7c77ee370f3 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -223,6 +223,8 @@ enum regulator_type {
  * @name: Identifying name for the regulator.
  * @supply_name: Identifying the regulator supply
  * @of_match: Name used to identify regulator in DT.
+ * @of_match_full_name: A flag to indicate that the of_match string, if
+ *			present, should be matched against the node full_name.
  * @regulators_node: Name of node containing regulator definitions in DT.
  * @of_parse_cb: Optional callback called only if of_match is present.
  *               Will be called for each regulator parsed from DT, during
@@ -314,6 +316,7 @@ struct regulator_desc {
 	const char *name;
 	const char *supply_name;
 	const char *of_match;
+	bool of_match_full_name;
 	const char *regulators_node;
 	int (*of_parse_cb)(struct device_node *,
 			    const struct regulator_desc *,
diff --git a/include/linux/regulator/pfuze100.h b/include/linux/regulator/pfuze100.h
index d47e668d9ca8..c964fe8ab698 100644
--- a/include/linux/regulator/pfuze100.h
+++ b/include/linux/regulator/pfuze100.h
@@ -63,10 +63,4 @@
 #define PFUZE3001_VLDO3		8
 #define PFUZE3001_VLDO4		9
 
-struct regulator_init_data;
-
-struct pfuze_regulator_platform_data {
-	struct regulator_init_data *init_data[PFUZE100_MAX_REGULATOR];
-};
-
 #endif /* __LINUX_REG_PFUZE100_H */
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h
index 9cd312a1ff92..b11ca01e2393 100644
--- a/include/linux/scmi_protocol.h
+++ b/include/linux/scmi_protocol.h
@@ -210,6 +210,64 @@ struct scmi_reset_ops {
 };
 
 /**
+ * struct scmi_voltage_info - describe one available SCMI Voltage Domain
+ *
+ * @id: the domain ID as advertised by the platform
+ * @segmented: defines the layout of the entries of array @levels_uv.
+ *	       - when True the entries are to be interpreted as triplets,
+ *	         each defining a segment representing a range of equally
+ *	         space voltages: <lowest_volts>, <highest_volt>, <step_uV>
+ *	       - when False the entries simply represent a single discrete
+ *	         supported voltage level
+ * @negative_volts_allowed: True if any of the entries of @levels_uv represent
+ *			    a negative voltage.
+ * @attributes: represents Voltage Domain advertised attributes
+ * @name: name assigned to the Voltage Domain by platform
+ * @num_levels: number of total entries in @levels_uv.
+ * @levels_uv: array of entries describing the available voltage levels for
+ *	       this domain.
+ */
+struct scmi_voltage_info {
+	unsigned int id;
+	bool segmented;
+	bool negative_volts_allowed;
+	unsigned int attributes;
+	char name[SCMI_MAX_STR_SIZE];
+	unsigned int num_levels;
+#define SCMI_VOLTAGE_SEGMENT_LOW	0
+#define SCMI_VOLTAGE_SEGMENT_HIGH	1
+#define SCMI_VOLTAGE_SEGMENT_STEP	2
+	int *levels_uv;
+};
+
+/**
+ * struct scmi_voltage_ops - represents the various operations provided
+ * by SCMI Voltage Protocol
+ *
+ * @num_domains_get: get the count of voltage domains provided by SCMI
+ * @info_get: get the information of the specified domain
+ * @config_set: set the config for the specified domain
+ * @config_get: get the config of the specified domain
+ * @level_set: set the voltage level for the specified domain
+ * @level_get: get the voltage level of the specified domain
+ */
+struct scmi_voltage_ops {
+	int (*num_domains_get)(const struct scmi_handle *handle);
+	const struct scmi_voltage_info __must_check *(*info_get)
+		(const struct scmi_handle *handle, u32 domain_id);
+	int (*config_set)(const struct scmi_handle *handle, u32 domain_id,
+			  u32 config);
+#define	SCMI_VOLTAGE_ARCH_STATE_OFF		0x0
+#define	SCMI_VOLTAGE_ARCH_STATE_ON		0x7
+	int (*config_get)(const struct scmi_handle *handle, u32 domain_id,
+			  u32 *config);
+	int (*level_set)(const struct scmi_handle *handle, u32 domain_id,
+			 u32 flags, s32 volt_uV);
+	int (*level_get)(const struct scmi_handle *handle, u32 domain_id,
+			 s32 *volt_uV);
+};
+
+/**
  * struct scmi_notify_ops  - represents notifications' operations provided by
  * SCMI core
  * @register_event_notifier: Register a notifier_block for the requested event
@@ -262,6 +320,7 @@ struct scmi_notify_ops {
  * @clk_ops: pointer to set of clock protocol operations
  * @sensor_ops: pointer to set of sensor protocol operations
  * @reset_ops: pointer to set of reset protocol operations
+ * @voltage_ops: pointer to set of voltage protocol operations
  * @notify_ops: pointer to set of notifications related operations
  * @perf_priv: pointer to private data structure specific to performance
  *	protocol(for internal use only)
@@ -273,6 +332,8 @@ struct scmi_notify_ops {
  *	protocol(for internal use only)
  * @reset_priv: pointer to private data structure specific to reset
  *	protocol(for internal use only)
+ * @voltage_priv: pointer to private data structure specific to voltage
+ *	protocol(for internal use only)
  * @notify_priv: pointer to private data structure specific to notifications
  *	(for internal use only)
  */
@@ -284,6 +345,7 @@ struct scmi_handle {
 	const struct scmi_power_ops *power_ops;
 	const struct scmi_sensor_ops *sensor_ops;
 	const struct scmi_reset_ops *reset_ops;
+	const struct scmi_voltage_ops *voltage_ops;
 	const struct scmi_notify_ops *notify_ops;
 	/* for protocol internal use */
 	void *perf_priv;
@@ -291,6 +353,7 @@ struct scmi_handle {
 	void *power_priv;
 	void *sensor_priv;
 	void *reset_priv;
+	void *voltage_priv;
 	void *notify_priv;
 	void *system_priv;
 };
@@ -303,6 +366,7 @@ enum scmi_std_protocol {
 	SCMI_PROTOCOL_CLOCK = 0x14,
 	SCMI_PROTOCOL_SENSOR = 0x15,
 	SCMI_PROTOCOL_RESET = 0x16,
+	SCMI_PROTOCOL_VOLTAGE = 0x17,
 };
 
 enum scmi_system_events {