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-rw-r--r--include/linux/mfd/stpmic1.h199
-rw-r--r--include/linux/regulator/machine.h207
-rw-r--r--include/linux/regulator/of_regulator.h48
3 files changed, 454 insertions, 0 deletions
diff --git a/include/linux/mfd/stpmic1.h b/include/linux/mfd/stpmic1.h
new file mode 100644
index 0000000..3a8d6a7
--- /dev/null
+++ b/include/linux/mfd/stpmic1.h
@@ -0,0 +1,199 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) STMicroelectronics 2018 - All Rights Reserved
+ * Author: Philippe Peurichard <philippe.peurichard@st.com>,
+ * Pascal Paillet <p.paillet@st.com> for STMicroelectronics.
+ */
+
+#ifndef __LINUX_MFD_STPMIC1_H
+#define __LINUX_MFD_STPMIC1_H
+
+#define TURN_ON_SR 0x1
+#define TURN_OFF_SR 0x2
+#define ICC_LDO_TURN_OFF_SR 0x3
+#define ICC_BUCK_TURN_OFF_SR 0x4
+#define RREQ_STATE_SR 0x5
+#define VERSION_SR 0x6
+
+#define SWOFF_PWRCTRL_CR 0x10
+#define PADS_PULL_CR 0x11
+#define BUCKS_PD_CR 0x12
+#define LDO14_PD_CR 0x13
+#define LDO56_VREF_PD_CR 0x14
+#define VBUS_DET_VIN_CR 0x15
+#define PKEY_TURNOFF_CR 0x16
+#define BUCKS_MASK_RANK_CR 0x17
+#define BUCKS_MASK_RESET_CR 0x18
+#define LDOS_MASK_RANK_CR 0x19
+#define LDOS_MASK_RESET_CR 0x1A
+#define WCHDG_CR 0x1B
+#define WCHDG_TIMER_CR 0x1C
+#define BUCKS_ICCTO_CR 0x1D
+#define LDOS_ICCTO_CR 0x1E
+
+#define BUCK1_ACTIVE_CR 0x20
+#define BUCK2_ACTIVE_CR 0x21
+#define BUCK3_ACTIVE_CR 0x22
+#define BUCK4_ACTIVE_CR 0x23
+#define VREF_DDR_ACTIVE_CR 0x24
+#define LDO1_ACTIVE_CR 0x25
+#define LDO2_ACTIVE_CR 0x26
+#define LDO3_ACTIVE_CR 0x27
+#define LDO4_ACTIVE_CR 0x28
+#define LDO5_ACTIVE_CR 0x29
+#define LDO6_ACTIVE_CR 0x2A
+
+#define BUCK1_STDBY_CR 0x30
+#define BUCK2_STDBY_CR 0x31
+#define BUCK3_STDBY_CR 0x32
+#define BUCK4_STDBY_CR 0x33
+#define VREF_DDR_STDBY_CR 0x34
+#define LDO1_STDBY_CR 0x35
+#define LDO2_STDBY_CR 0x36
+#define LDO3_STDBY_CR 0x37
+#define LDO4_STDBY_CR 0x38
+#define LDO5_STDBY_CR 0x39
+#define LDO6_STDBY_CR 0x3A
+
+#define BST_SW_CR 0x40
+
+#define INT_PENDING_R1 0x50
+#define INT_PENDING_R2 0x51
+#define INT_PENDING_R3 0x52
+#define INT_PENDING_R4 0x53
+
+#define INT_DBG_LATCH_R1 0x60
+#define INT_DBG_LATCH_R2 0x61
+#define INT_DBG_LATCH_R3 0x62
+#define INT_DBG_LATCH_R4 0x63
+
+#define INT_CLEAR_R1 0x70
+#define INT_CLEAR_R2 0x71
+#define INT_CLEAR_R3 0x72
+#define INT_CLEAR_R4 0x73
+
+#define INT_MASK_R1 0x80
+#define INT_MASK_R2 0x81
+#define INT_MASK_R3 0x82
+#define INT_MASK_R4 0x83
+
+#define INT_SET_MASK_R1 0x90
+#define INT_SET_MASK_R2 0x91
+#define INT_SET_MASK_R3 0x92
+#define INT_SET_MASK_R4 0x93
+
+#define INT_CLEAR_MASK_R1 0xA0
+#define INT_CLEAR_MASK_R2 0xA1
+#define INT_CLEAR_MASK_R3 0xA2
+#define INT_CLEAR_MASK_R4 0xA3
+
+#define INT_SRC_R1 0xB0
+#define INT_SRC_R2 0xB1
+#define INT_SRC_R3 0xB2
+#define INT_SRC_R4 0xB3
+
+#define PMIC_MAX_REGISTER_ADDRESS INT_SRC_R4
+
+#define STPMIC1_PMIC_NUM_IRQ_REGS 4
+
+#define TURN_OFF_SR_ICC_EVENT 0x08
+
+#define LDO_VOLTAGE_MASK GENMASK(6, 2)
+#define BUCK_VOLTAGE_MASK GENMASK(7, 2)
+#define LDO_BUCK_VOLTAGE_SHIFT 2
+
+#define LDO_ENABLE_MASK BIT(0)
+#define BUCK_ENABLE_MASK BIT(0)
+
+#define BUCK_HPLP_ENABLE_MASK BIT(1)
+#define BUCK_HPLP_SHIFT 1
+
+#define STDBY_ENABLE_MASK BIT(0)
+
+#define BUCKS_PD_CR_REG_MASK GENMASK(7, 0)
+#define BUCK_MASK_RANK_REGISTER_MASK GENMASK(3, 0)
+#define BUCK_MASK_RESET_REGISTER_MASK GENMASK(3, 0)
+#define LDO1234_PULL_DOWN_REGISTER_MASK GENMASK(7, 0)
+#define LDO56_VREF_PD_CR_REG_MASK GENMASK(5, 0)
+#define LDO_MASK_RANK_REGISTER_MASK GENMASK(5, 0)
+#define LDO_MASK_RESET_REGISTER_MASK GENMASK(5, 0)
+
+#define BUCK1_PULL_DOWN_REG BUCKS_PD_CR
+#define BUCK1_PULL_DOWN_MASK BIT(0)
+#define BUCK2_PULL_DOWN_REG BUCKS_PD_CR
+#define BUCK2_PULL_DOWN_MASK BIT(2)
+#define BUCK3_PULL_DOWN_REG BUCKS_PD_CR
+#define BUCK3_PULL_DOWN_MASK BIT(4)
+#define BUCK4_PULL_DOWN_REG BUCKS_PD_CR
+#define BUCK4_PULL_DOWN_MASK BIT(6)
+
+#define LDO1_PULL_DOWN_REG LDO14_PD_CR
+#define LDO1_PULL_DOWN_MASK BIT(0)
+#define LDO2_PULL_DOWN_REG LDO14_PD_CR
+#define LDO2_PULL_DOWN_MASK BIT(2)
+#define LDO3_PULL_DOWN_REG LDO14_PD_CR
+#define LDO3_PULL_DOWN_MASK BIT(4)
+#define LDO4_PULL_DOWN_REG LDO14_PD_CR
+#define LDO4_PULL_DOWN_MASK BIT(6)
+#define LDO5_PULL_DOWN_REG LDO56_VREF_PD_CR
+#define LDO5_PULL_DOWN_MASK BIT(0)
+#define LDO6_PULL_DOWN_REG LDO56_VREF_PD_CR
+#define LDO6_PULL_DOWN_MASK BIT(2)
+#define VREF_DDR_PULL_DOWN_REG LDO56_VREF_PD_CR
+#define VREF_DDR_PULL_DOWN_MASK BIT(4)
+
+#define BUCKS_ICCTO_CR_REG_MASK GENMASK(6, 0)
+#define LDOS_ICCTO_CR_REG_MASK GENMASK(5, 0)
+
+#define LDO_BYPASS_MASK BIT(7)
+
+/* Main PMIC Control Register
+ * SWOFF_PWRCTRL_CR
+ * Address : 0x10
+ */
+#define ICC_EVENT_ENABLED BIT(4)
+#define PWRCTRL_POLARITY_HIGH BIT(3)
+#define PWRCTRL_PIN_VALID BIT(2)
+#define RESTART_REQUEST_ENABLED BIT(1)
+#define SOFTWARE_SWITCH_OFF_ENABLED BIT(0)
+
+/* Main PMIC PADS Control Register
+ * PADS_PULL_CR
+ * Address : 0x11
+ */
+#define WAKEUP_DETECTOR_DISABLED BIT(4)
+#define PWRCTRL_PD_ACTIVE BIT(3)
+#define PWRCTRL_PU_ACTIVE BIT(2)
+#define WAKEUP_PD_ACTIVE BIT(1)
+#define PONKEY_PU_INACTIVE BIT(0)
+
+/* Main PMIC VINLOW Control Register
+ * VBUS_DET_VIN_CRC DMSC
+ * Address : 0x15
+ */
+#define SWIN_DETECTOR_ENABLED BIT(7)
+#define SWOUT_DETECTOR_ENABLED BIT(6)
+#define VINLOW_ENABLED BIT(0)
+#define VINLOW_CTRL_REG_MASK GENMASK(7, 0)
+
+/* USB Control Register
+ * Address : 0x40
+ */
+#define BOOST_OVP_DISABLED BIT(7)
+#define VBUS_OTG_DETECTION_DISABLED BIT(6)
+#define SW_OUT_DISCHARGE BIT(5)
+#define VBUS_OTG_DISCHARGE BIT(4)
+#define OCP_LIMIT_HIGH BIT(3)
+#define SWIN_SWOUT_ENABLED BIT(2)
+#define USBSW_OTG_SWITCH_ENABLED BIT(1)
+#define BOOST_ENABLED BIT(0)
+
+/* PKEY_TURNOFF_CR
+ * Address : 0x16
+ */
+#define PONKEY_PWR_OFF BIT(7)
+#define PONKEY_CC_FLAG_CLEAR BIT(6)
+#define PONKEY_TURNOFF_TIMER_MASK GENMASK(3, 0)
+#define PONKEY_TURNOFF_MASK GENMASK(7, 0)
+
+#endif /* __LINUX_MFD_STPMIC1_H */
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
new file mode 100644
index 0000000..bb8bc7c
--- /dev/null
+++ b/include/linux/regulator/machine.h
@@ -0,0 +1,207 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * machine.h -- SoC Regulator support, machine/board driver API.
+ *
+ * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ *
+ * Regulator Machine/Board Interface.
+ */
+
+#ifndef __LINUX_REGULATOR_MACHINE_H_
+#define __LINUX_REGULATOR_MACHINE_H_
+
+#include <regulator.h>
+
+struct regulator;
+
+/*
+ * Regulator operation constraint flags. These flags are used to enable
+ * certain regulator operations and can be OR'ed together.
+ *
+ * VOLTAGE: Regulator output voltage can be changed by software on this
+ * board/machine.
+ * CURRENT: Regulator output current can be changed by software on this
+ * board/machine.
+ * MODE: Regulator operating mode can be changed by software on this
+ * board/machine.
+ * STATUS: Regulator can be enabled and disabled.
+ * DRMS: Dynamic Regulator Mode Switching is enabled for this regulator.
+ * BYPASS: Regulator can be put into bypass mode
+ */
+
+#define REGULATOR_CHANGE_VOLTAGE 0x1
+#define REGULATOR_CHANGE_CURRENT 0x2
+#define REGULATOR_CHANGE_MODE 0x4
+#define REGULATOR_CHANGE_STATUS 0x8
+#define REGULATOR_CHANGE_DRMS 0x10
+#define REGULATOR_CHANGE_BYPASS 0x20
+
+/* Regulator active discharge flags */
+enum regulator_active_discharge {
+ REGULATOR_ACTIVE_DISCHARGE_DEFAULT,
+ REGULATOR_ACTIVE_DISCHARGE_DISABLE,
+ REGULATOR_ACTIVE_DISCHARGE_ENABLE,
+};
+
+/**
+ * struct regulation_constraints - regulator operating constraints.
+ *
+ * This struct describes regulator and board/machine specific constraints.
+ *
+ * @name: Descriptive name for the constraints, used for display purposes.
+ *
+ * @min_uV: Smallest voltage consumers may set.
+ * @max_uV: Largest voltage consumers may set.
+ * @uV_offset: Offset applied to voltages from consumer to compensate for
+ * voltage drops.
+ *
+ * @min_uA: Smallest current consumers may set.
+ * @max_uA: Largest current consumers may set.
+ * @ilim_uA: Maximum input current.
+ * @system_load: Load that isn't captured by any consumer requests.
+ *
+ * @max_spread: Max possible spread between coupled regulators
+ * @valid_modes_mask: Mask of modes which may be configured by consumers.
+ * @valid_ops_mask: Operations which may be performed by consumers.
+ *
+ * @always_on: Set if the regulator should never be disabled.
+ * @boot_on: Set if the regulator is enabled when the system is initially
+ * started. If the regulator is not enabled by the hardware or
+ * bootloader then it will be enabled when the constraints are
+ * applied.
+ * @apply_uV: Apply the voltage constraint when initialising.
+ * @ramp_disable: Disable ramp delay when initialising or when setting voltage.
+ * @soft_start: Enable soft start so that voltage ramps slowly.
+ * @pull_down: Enable pull down when regulator is disabled.
+ * @over_current_protection: Auto disable on over current event.
+ *
+ * @input_uV: Input voltage for regulator when supplied by another regulator.
+ *
+ * @initial_mode: Mode to set at startup.
+ * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
+ * @settling_time: Time to settle down after voltage change when voltage
+ * change is non-linear (unit: microseconds).
+ * @settling_time_up: Time to settle down after voltage increase when voltage
+ * change is non-linear (unit: microseconds).
+ * @settling_time_down : Time to settle down after voltage decrease when
+ * voltage change is non-linear (unit: microseconds).
+ * @active_discharge: Enable/disable active discharge. The enum
+ * regulator_active_discharge values are used for
+ * initialisation.
+ * @enable_time: Turn-on time of the rails (unit: microseconds)
+ */
+struct regulation_constraints {
+
+ const char *name;
+
+ /* voltage output range (inclusive) - for voltage control */
+ int min_uV;
+ int max_uV;
+
+ int uV_offset;
+
+ /* current output range (inclusive) - for current control */
+ int min_uA;
+ int max_uA;
+ int ilim_uA;
+
+ int system_load;
+
+ /* used for coupled regulators */
+ u32 *max_spread;
+
+ /* used for changing voltage in steps */
+ int max_uV_step;
+
+ /* valid regulator operating modes for this machine */
+ unsigned int valid_modes_mask;
+
+ /* valid operations for regulator on this machine */
+ unsigned int valid_ops_mask;
+
+ /* regulator input voltage - only if supply is another regulator */
+ int input_uV;
+
+ /* mode to set on startup */
+ unsigned int initial_mode;
+
+ unsigned int ramp_delay;
+ unsigned int settling_time;
+ unsigned int settling_time_up;
+ unsigned int settling_time_down;
+ unsigned int enable_time;
+
+ unsigned int active_discharge;
+
+ /* constraint flags */
+ unsigned always_on:1; /* regulator never off when system is on */
+ unsigned boot_on:1; /* bootloader/firmware enabled regulator */
+ unsigned apply_uV:1; /* apply uV constraint if min == max */
+ unsigned ramp_disable:1; /* disable ramp delay */
+ unsigned soft_start:1; /* ramp voltage slowly */
+ unsigned pull_down:1; /* pull down resistor when regulator off */
+ unsigned over_current_protection:1; /* auto disable on over current */
+};
+
+/**
+ * struct regulator_consumer_supply - supply -> device mapping
+ *
+ * This maps a supply name to a device. Use of dev_name allows support for
+ * buses which make struct device available late such as I2C.
+ *
+ * @dev_name: Result of dev_name() for the consumer.
+ * @supply: Name for the supply.
+ */
+struct regulator_consumer_supply {
+ const char *dev_name; /* dev_name() for consumer */
+ const char *supply; /* consumer supply - e.g. "vcc" */
+};
+
+/* Initialize struct regulator_consumer_supply */
+#define REGULATOR_SUPPLY(_name, _dev_name) \
+{ \
+ .supply = _name, \
+ .dev_name = _dev_name, \
+}
+
+/**
+ * struct regulator_init_data - regulator platform initialisation data.
+ *
+ * Initialisation constraints, our supply and consumers supplies.
+ *
+ * @supply_regulator: Parent regulator. Specified using the regulator name
+ * as it appears in the name field in sysfs, which can
+ * be explicitly set using the constraints field 'name'.
+ *
+ * @constraints: Constraints. These must be specified for the regulator to
+ * be usable.
+ * @num_consumer_supplies: Number of consumer device supplies.
+ * @consumer_supplies: Consumer device supply configuration.
+ *
+ * @regulator_init: Callback invoked when the regulator has been registered.
+ * @driver_data: Data passed to regulator_init.
+ */
+struct regulator_init_data {
+ const char *supply_regulator; /* or NULL for system supply */
+
+ struct regulation_constraints constraints;
+
+ int num_consumer_supplies;
+ struct regulator_consumer_supply *consumer_supplies;
+
+ /* optional regulator machine specific init */
+ int (*regulator_init)(void *driver_data);
+ void *driver_data; /* core does not touch this */
+};
+
+#ifdef CONFIG_REGULATOR
+void regulator_has_full_constraints(void);
+#else
+static inline void regulator_has_full_constraints(void)
+{
+}
+#endif
+
+#endif
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
new file mode 100644
index 0000000..265b98d
--- /dev/null
+++ b/include/linux/regulator/of_regulator.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * OpenFirmware regulator support routines
+ */
+
+#ifndef __LINUX_OF_REG_H
+#define __LINUX_OF_REG_H
+
+#include <linux/types.h>
+
+struct device_d;
+struct regulator_desc;
+
+struct of_regulator_match {
+ const char *name;
+ void *driver_data;
+ struct regulator_init_data *init_data;
+ struct device_node *of_node;
+ const struct regulator_desc *desc;
+};
+
+#if defined(CONFIG_OFDEVICE)
+extern struct regulator_init_data
+ *of_get_regulator_init_data(struct device_d *dev,
+ struct device_node *node,
+ const struct regulator_desc *desc);
+extern int of_regulator_match(struct device_d *dev, struct device_node *node,
+ struct of_regulator_match *matches,
+ unsigned int num_matches);
+#else
+static inline struct regulator_init_data
+ *of_get_regulator_init_data(struct device_d *dev,
+ struct device_node *node,
+ const struct regulator_desc *desc)
+{
+ return NULL;
+}
+
+static inline int of_regulator_match(struct device_d *dev,
+ struct device_node *node,
+ struct of_regulator_match *matches,
+ unsigned int num_matches)
+{
+ return 0;
+}
+#endif /* CONFIG_OF */
+
+#endif /* __LINUX_OF_REG_H */