Merge "regulator: qpnp-regulator: Add snapshot of qpnp-regulator" (fbc8d136) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/regulator/Kconfig

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		@@ -1211,6 +1211,16 @@ config REGULATOR_STUB
		Consumers can use stub regulator device with proper constraint
		checking while the real regulator driver is being developed.

		config REGULATOR_QPNP
		tristate "Qualcomm Technologies, Inc. QPNP regulator support"
		depends on SPMI
		help
		This driver supports voltage regulators in Qualcomm Technologies, Inc.
		PMIC chips which comply with QPNP. QPNP is a SPMI based PMIC
		implementation. These chips provide several different varieties of
		LDO and switching regulators. They also provide voltage switches and
		boost regulators.

		config VIRTIO_REGULATOR
		tristate "Virtio regulator driver"
		depends on VIRTIO

drivers/regulator/Makefile

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		@@ -92,6 +92,7 @@ obj-$(CONFIG_REGULATOR_RPM_SMD) += rpm-smd-regulator.o
		obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o
		obj-$(CONFIG_REGULATOR_QPNP_LCDB) += qpnp-lcdb-regulator.o
		obj-$(CONFIG_REGULATOR_QPNP_AMOLED) += qpnp-amoled-regulator.o
		obj-$(CONFIG_REGULATOR_QPNP) += qpnp-regulator.o
		obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
		obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o
		obj-$(CONFIG_REGULATOR_PV88060) += pv88060-regulator.o

drivers/regulator/qpnp-regulator.c

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File added.

Preview size limit exceeded, changes collapsed.

include/linux/regulator/qpnp-regulator.h

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		/* SPDX-License-Identifier: GPL-2.0-only */
		/*
		* Copyright (c) 2012-2013, 2017, 2021, The Linux Foundation. All rights reserved.
		*/

		#ifndef __REGULATOR_QPNP_REGULATOR_H__
		#define __REGULATOR_QPNP_REGULATOR_H__

		#include <linux/regulator/machine.h>

		#define QPNP_REGULATOR_DRIVER_NAME "qcom,qpnp-regulator"

		/* Pin control enable input pins. */
		#define QPNP_REGULATOR_PIN_CTRL_ENABLE_NONE 0x00
		#define QPNP_REGULATOR_PIN_CTRL_ENABLE_EN0 0x01
		#define QPNP_REGULATOR_PIN_CTRL_ENABLE_EN1 0x02
		#define QPNP_REGULATOR_PIN_CTRL_ENABLE_EN2 0x04
		#define QPNP_REGULATOR_PIN_CTRL_ENABLE_EN3 0x08
		#define QPNP_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT 0x10

		/* Pin control high power mode input pins. */
		#define QPNP_REGULATOR_PIN_CTRL_HPM_NONE 0x00
		#define QPNP_REGULATOR_PIN_CTRL_HPM_EN0 0x01
		#define QPNP_REGULATOR_PIN_CTRL_HPM_EN1 0x02
		#define QPNP_REGULATOR_PIN_CTRL_HPM_EN2 0x04
		#define QPNP_REGULATOR_PIN_CTRL_HPM_EN3 0x08
		#define QPNP_REGULATOR_PIN_CTRL_HPM_SLEEP_B 0x10
		#define QPNP_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT 0x20

		/*
		* Used with enable parameters to specify that hardware default register values
		* should be left unaltered.
		*/
		#define QPNP_REGULATOR_DISABLE 0
		#define QPNP_REGULATOR_ENABLE 1
		#define QPNP_REGULATOR_USE_HW_DEFAULT 2

		/* Soft start strength of a voltage switch type regulator */
		enum qpnp_vs_soft_start_str {
		QPNP_VS_SOFT_START_STR_0P05_UA,
		QPNP_VS_SOFT_START_STR_0P25_UA,
		QPNP_VS_SOFT_START_STR_0P55_UA,
		QPNP_VS_SOFT_START_STR_0P75_UA,
		QPNP_VS_SOFT_START_STR_HW_DEFAULT,
		};

		/* Current limit of a boost type regulator */
		enum qpnp_boost_current_limit {
		QPNP_BOOST_CURRENT_LIMIT_300_MA,
		QPNP_BOOST_CURRENT_LIMIT_600_MA,
		QPNP_BOOST_CURRENT_LIMIT_900_MA,
		QPNP_BOOST_CURRENT_LIMIT_1200_MA,
		QPNP_BOOST_CURRENT_LIMIT_1500_MA,
		QPNP_BOOST_CURRENT_LIMIT_1800_MA,
		QPNP_BOOST_CURRENT_LIMIT_2100_MA,
		QPNP_BOOST_CURRENT_LIMIT_2400_MA,
		QPNP_BOOST_CURRENT_LIMIT_HW_DEFAULT,
		};

		/**
		* struct qpnp_regulator_platform_data - qpnp-regulator initialization data
		* @init_data: regulator constraints
		* @pull_down_enable: 1 = Enable output pull down resistor when the
		* regulator is disabled
		* 0 = Disable pull down resistor
		* QPNP_REGULATOR_USE_HW_DEFAULT = do not modify
		* pull down state
		* @pin_ctrl_enable: Bit mask specifying which hardware pins should be
		* used to enable the regulator, if any
		* Value should be an ORing of
		* QPNP_REGULATOR_PIN_CTRL_ENABLE_* constants. If
		* the bit specified by
		* QPNP_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT is
		* set, then pin control enable hardware registers
		* will not be modified.
		* @pin_ctrl_hpm: Bit mask specifying which hardware pins should be
		* used to force the regulator into high power
		* mode, if any
		* Value should be an ORing of
		* QPNP_REGULATOR_PIN_CTRL_HPM_* constants. If
		* the bit specified by
		* QPNP_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT is
		* set, then pin control mode hardware registers
		* will not be modified.
		* @system_load: Load in uA present on regulator that is not captured
		* by any consumer request
		* @enable_time: Time in us to delay after enabling the regulator
		* @ocp_enable: 1 = Allow over current protection (OCP) to be
		* enabled for voltage switch type regulators so
		* that they latch off automatically when over
		* current is detected. OCP is enabled when in HPM
		* or auto mode.
		* 0 = Disable OCP
		* QPNP_REGULATOR_USE_HW_DEFAULT = do not modify
		* OCP state
		* @ocp_irq: IRQ number of the voltage switch OCP IRQ. If
		* specified the voltage switch will be toggled off
		* and back on when OCP triggers in order to handle
		* high in-rush current.
		* @ocp_max_retries: Maximum number of times to try toggling a voltage
		* switch off and back on as a result of
		* consecutive over current events.
		* @ocp_retry_delay_ms: Time to delay in milliseconds between each
		* voltage switch toggle after an over current
		* event takes place.
		* @boost_current_limit: This parameter sets the current limit of boost type
		* regulators. Its value should be one of
		* QPNP_BOOST_CURRENT_LIMIT_*. If its value is
		* QPNP_BOOST_CURRENT_LIMIT_HW_DEFAULT, then the
		* boost current limit will be left at its default
		* hardware value.
		* @soft_start_enable: 1 = Enable soft start for LDO and voltage switch
		* type regulators so that output voltage slowly
		* ramps up when the regulator is enabled
		* 0 = Disable soft start
		* QPNP_REGULATOR_USE_HW_DEFAULT = do not modify
		* soft start state
		* @vs_soft_start_strength: This parameter sets the soft start strength for
		* voltage switch type regulators. Its value
		* should be one of QPNP_VS_SOFT_START_STR_*. If
		* its value is QPNP_VS_SOFT_START_STR_HW_DEFAULT,
		* then the soft start strength will be left at its
		* default hardware value.
		* @auto_mode_enable: 1 = Enable automatic hardware selection of regulator
		* mode (HPM vs LPM). Auto mode is not available
		* on boost type regulators
		* 0 = Disable auto mode selection
		* QPNP_REGULATOR_USE_HW_DEFAULT = do not modify
		* auto mode state
		* @bypass_mode_enable: 1 = Enable bypass mode for an LDO type regulator so
		* that it acts like a switch and simply outputs
		* its input voltage
		* 0 = Do not enable bypass mode
		* QPNP_REGULATOR_USE_HW_DEFAULT = do not modify
		* bypass mode state
		* @hpm_enable: 1 = Enable high power mode (HPM), also referred to
		* as NPM. HPM consumes more ground current than
		* LPM, but it can source significantly higher load
		* current. HPM is not available on boost type
		* regulators. For voltage switch type regulators,
		* HPM implies that over current protection and
		* soft start are active all the time. This
		* configuration can be overwritten by changing the
		* regulator's mode dynamically.
		* 0 = Do not enable HPM
		* QPNP_REGULATOR_USE_HW_DEFAULT = do not modify
		* HPM state
		* @base_addr: SMPI base address for the regulator peripheral
		*/
		struct qpnp_regulator_platform_data {
		struct regulator_init_data init_data;
		int pull_down_enable;
		unsigned int pin_ctrl_enable;
		unsigned int pin_ctrl_hpm;
		int system_load;
		int enable_time;
		int ocp_enable;
		int ocp_irq;
		int ocp_max_retries;
		int ocp_retry_delay_ms;
		enum qpnp_boost_current_limit boost_current_limit;
		int soft_start_enable;
		enum qpnp_vs_soft_start_str vs_soft_start_strength;
		int auto_mode_enable;
		int bypass_mode_enable;
		int hpm_enable;
		u16 base_addr;
		};

		#ifdef CONFIG_REGULATOR_QPNP

		/**
		* qpnp_regulator_init() - register spmi driver for qpnp-regulator
		*
		* This initialization function should be called in systems in which driver
		* registration ordering must be controlled precisely.
		*/
		int __init qpnp_regulator_init(void);

		#else

		static inline int __init qpnp_regulator_init(void)
		{
		return -ENODEV;
		}

		#endif /* CONFIG_REGULATOR_QPNP */

		#endif