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- /* SPDX-License-Identifier: GPL-2.0-only */
- #ifndef __LINUX_REGMAP_H
- #define __LINUX_REGMAP_H
- /*
- * Register map access API
- *
- * Copyright 2011 Wolfson Microelectronics plc
- *
- * Author: Mark Brown <[email protected]>
- */
- #include <linux/list.h>
- #include <linux/rbtree.h>
- #include <linux/ktime.h>
- #include <linux/delay.h>
- #include <linux/err.h>
- #include <linux/bug.h>
- #include <linux/lockdep.h>
- #include <linux/iopoll.h>
- #include <linux/fwnode.h>
- #include <linux/android_kabi.h>
- struct module;
- struct clk;
- struct device;
- struct device_node;
- struct i2c_client;
- struct i3c_device;
- struct irq_domain;
- struct mdio_device;
- struct slim_device;
- struct spi_device;
- struct spmi_device;
- struct regmap;
- struct regmap_range_cfg;
- struct regmap_field;
- struct snd_ac97;
- struct sdw_slave;
- /* An enum of all the supported cache types */
- enum regcache_type {
- REGCACHE_NONE,
- REGCACHE_RBTREE,
- REGCACHE_COMPRESSED,
- REGCACHE_FLAT,
- };
- /**
- * struct reg_default - Default value for a register.
- *
- * @reg: Register address.
- * @def: Register default value.
- *
- * We use an array of structs rather than a simple array as many modern devices
- * have very sparse register maps.
- */
- struct reg_default {
- unsigned int reg;
- unsigned int def;
- };
- /**
- * struct reg_sequence - An individual write from a sequence of writes.
- *
- * @reg: Register address.
- * @def: Register value.
- * @delay_us: Delay to be applied after the register write in microseconds
- *
- * Register/value pairs for sequences of writes with an optional delay in
- * microseconds to be applied after each write.
- */
- struct reg_sequence {
- unsigned int reg;
- unsigned int def;
- unsigned int delay_us;
- };
- #define REG_SEQ(_reg, _def, _delay_us) { \
- .reg = _reg, \
- .def = _def, \
- .delay_us = _delay_us, \
- }
- #define REG_SEQ0(_reg, _def) REG_SEQ(_reg, _def, 0)
- /**
- * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs
- *
- * @map: Regmap to read from
- * @addr: Address to poll
- * @val: Unsigned integer variable to read the value into
- * @cond: Break condition (usually involving @val)
- * @sleep_us: Maximum time to sleep between reads in us (0
- * tight-loops). Should be less than ~20ms since usleep_range
- * is used (see Documentation/timers/timers-howto.rst).
- * @timeout_us: Timeout in us, 0 means never timeout
- *
- * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
- * error return value in case of a error read. In the two former cases,
- * the last read value at @addr is stored in @val. Must not be called
- * from atomic context if sleep_us or timeout_us are used.
- *
- * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
- */
- #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
- ({ \
- int __ret, __tmp; \
- __tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \
- sleep_us, timeout_us, false, (map), (addr), &(val)); \
- __ret ?: __tmp; \
- })
- /**
- * regmap_read_poll_timeout_atomic - Poll until a condition is met or a timeout occurs
- *
- * @map: Regmap to read from
- * @addr: Address to poll
- * @val: Unsigned integer variable to read the value into
- * @cond: Break condition (usually involving @val)
- * @delay_us: Time to udelay between reads in us (0 tight-loops).
- * Should be less than ~10us since udelay is used
- * (see Documentation/timers/timers-howto.rst).
- * @timeout_us: Timeout in us, 0 means never timeout
- *
- * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
- * error return value in case of a error read. In the two former cases,
- * the last read value at @addr is stored in @val.
- *
- * This is modelled after the readx_poll_timeout_atomic macros in linux/iopoll.h.
- *
- * Note: In general regmap cannot be used in atomic context. If you want to use
- * this macro then first setup your regmap for atomic use (flat or no cache
- * and MMIO regmap).
- */
- #define regmap_read_poll_timeout_atomic(map, addr, val, cond, delay_us, timeout_us) \
- ({ \
- u64 __timeout_us = (timeout_us); \
- unsigned long __delay_us = (delay_us); \
- ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
- int __ret; \
- for (;;) { \
- __ret = regmap_read((map), (addr), &(val)); \
- if (__ret) \
- break; \
- if (cond) \
- break; \
- if ((__timeout_us) && \
- ktime_compare(ktime_get(), __timeout) > 0) { \
- __ret = regmap_read((map), (addr), &(val)); \
- break; \
- } \
- if (__delay_us) \
- udelay(__delay_us); \
- } \
- __ret ?: ((cond) ? 0 : -ETIMEDOUT); \
- })
- /**
- * regmap_field_read_poll_timeout - Poll until a condition is met or timeout
- *
- * @field: Regmap field to read from
- * @val: Unsigned integer variable to read the value into
- * @cond: Break condition (usually involving @val)
- * @sleep_us: Maximum time to sleep between reads in us (0
- * tight-loops). Should be less than ~20ms since usleep_range
- * is used (see Documentation/timers/timers-howto.rst).
- * @timeout_us: Timeout in us, 0 means never timeout
- *
- * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read
- * error return value in case of a error read. In the two former cases,
- * the last read value at @addr is stored in @val. Must not be called
- * from atomic context if sleep_us or timeout_us are used.
- *
- * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
- */
- #define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \
- ({ \
- int __ret, __tmp; \
- __tmp = read_poll_timeout(regmap_field_read, __ret, __ret || (cond), \
- sleep_us, timeout_us, false, (field), &(val)); \
- __ret ?: __tmp; \
- })
- #ifdef CONFIG_REGMAP
- enum regmap_endian {
- /* Unspecified -> 0 -> Backwards compatible default */
- REGMAP_ENDIAN_DEFAULT = 0,
- REGMAP_ENDIAN_BIG,
- REGMAP_ENDIAN_LITTLE,
- REGMAP_ENDIAN_NATIVE,
- };
- /**
- * struct regmap_range - A register range, used for access related checks
- * (readable/writeable/volatile/precious checks)
- *
- * @range_min: address of first register
- * @range_max: address of last register
- */
- struct regmap_range {
- unsigned int range_min;
- unsigned int range_max;
- };
- #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, }
- /**
- * struct regmap_access_table - A table of register ranges for access checks
- *
- * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges"
- * @n_yes_ranges: size of the above array
- * @no_ranges: pointer to an array of regmap ranges used as "no ranges"
- * @n_no_ranges: size of the above array
- *
- * A table of ranges including some yes ranges and some no ranges.
- * If a register belongs to a no_range, the corresponding check function
- * will return false. If a register belongs to a yes range, the corresponding
- * check function will return true. "no_ranges" are searched first.
- */
- struct regmap_access_table {
- const struct regmap_range *yes_ranges;
- unsigned int n_yes_ranges;
- const struct regmap_range *no_ranges;
- unsigned int n_no_ranges;
- };
- typedef void (*regmap_lock)(void *);
- typedef void (*regmap_unlock)(void *);
- /**
- * struct regmap_config - Configuration for the register map of a device.
- *
- * @name: Optional name of the regmap. Useful when a device has multiple
- * register regions.
- *
- * @reg_bits: Number of bits in a register address, mandatory.
- * @reg_stride: The register address stride. Valid register addresses are a
- * multiple of this value. If set to 0, a value of 1 will be
- * used.
- * @reg_downshift: The number of bits to downshift the register before
- * performing any operations.
- * @reg_base: Value to be added to every register address before performing any
- * operation.
- * @pad_bits: Number of bits of padding between register and value.
- * @val_bits: Number of bits in a register value, mandatory.
- *
- * @writeable_reg: Optional callback returning true if the register
- * can be written to. If this field is NULL but wr_table
- * (see below) is not, the check is performed on such table
- * (a register is writeable if it belongs to one of the ranges
- * specified by wr_table).
- * @readable_reg: Optional callback returning true if the register
- * can be read from. If this field is NULL but rd_table
- * (see below) is not, the check is performed on such table
- * (a register is readable if it belongs to one of the ranges
- * specified by rd_table).
- * @volatile_reg: Optional callback returning true if the register
- * value can't be cached. If this field is NULL but
- * volatile_table (see below) is not, the check is performed on
- * such table (a register is volatile if it belongs to one of
- * the ranges specified by volatile_table).
- * @precious_reg: Optional callback returning true if the register
- * should not be read outside of a call from the driver
- * (e.g., a clear on read interrupt status register). If this
- * field is NULL but precious_table (see below) is not, the
- * check is performed on such table (a register is precious if
- * it belongs to one of the ranges specified by precious_table).
- * @writeable_noinc_reg: Optional callback returning true if the register
- * supports multiple write operations without incrementing
- * the register number. If this field is NULL but
- * wr_noinc_table (see below) is not, the check is
- * performed on such table (a register is no increment
- * writeable if it belongs to one of the ranges specified
- * by wr_noinc_table).
- * @readable_noinc_reg: Optional callback returning true if the register
- * supports multiple read operations without incrementing
- * the register number. If this field is NULL but
- * rd_noinc_table (see below) is not, the check is
- * performed on such table (a register is no increment
- * readable if it belongs to one of the ranges specified
- * by rd_noinc_table).
- * @disable_locking: This regmap is either protected by external means or
- * is guaranteed not to be accessed from multiple threads.
- * Don't use any locking mechanisms.
- * @lock: Optional lock callback (overrides regmap's default lock
- * function, based on spinlock or mutex).
- * @unlock: As above for unlocking.
- * @lock_arg: this field is passed as the only argument of lock/unlock
- * functions (ignored in case regular lock/unlock functions
- * are not overridden).
- * @reg_read: Optional callback that if filled will be used to perform
- * all the reads from the registers. Should only be provided for
- * devices whose read operation cannot be represented as a simple
- * read operation on a bus such as SPI, I2C, etc. Most of the
- * devices do not need this.
- * @reg_write: Same as above for writing.
- * @reg_update_bits: Optional callback that if filled will be used to perform
- * all the update_bits(rmw) operation. Should only be provided
- * if the function require special handling with lock and reg
- * handling and the operation cannot be represented as a simple
- * update_bits operation on a bus such as SPI, I2C, etc.
- * @read: Optional callback that if filled will be used to perform all the
- * bulk reads from the registers. Data is returned in the buffer used
- * to transmit data.
- * @write: Same as above for writing.
- * @max_raw_read: Max raw read size that can be used on the device.
- * @max_raw_write: Max raw write size that can be used on the device.
- * @fast_io: Register IO is fast. Use a spinlock instead of a mutex
- * to perform locking. This field is ignored if custom lock/unlock
- * functions are used (see fields lock/unlock of struct regmap_config).
- * This field is a duplicate of a similar file in
- * 'struct regmap_bus' and serves exact same purpose.
- * Use it only for "no-bus" cases.
- * @io_port: Support IO port accessors. Makes sense only when MMIO vs. IO port
- * access can be distinguished.
- * @max_register: Optional, specifies the maximum valid register address.
- * @wr_table: Optional, points to a struct regmap_access_table specifying
- * valid ranges for write access.
- * @rd_table: As above, for read access.
- * @volatile_table: As above, for volatile registers.
- * @precious_table: As above, for precious registers.
- * @wr_noinc_table: As above, for no increment writeable registers.
- * @rd_noinc_table: As above, for no increment readable registers.
- * @reg_defaults: Power on reset values for registers (for use with
- * register cache support).
- * @num_reg_defaults: Number of elements in reg_defaults.
- *
- * @read_flag_mask: Mask to be set in the top bytes of the register when doing
- * a read.
- * @write_flag_mask: Mask to be set in the top bytes of the register when doing
- * a write. If both read_flag_mask and write_flag_mask are
- * empty and zero_flag_mask is not set the regmap_bus default
- * masks are used.
- * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even
- * if they are both empty.
- * @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers.
- * This can avoid load on devices which don't require strict
- * orderings, but drivers should carefully add any explicit
- * memory barriers when they may require them.
- * @use_single_read: If set, converts the bulk read operation into a series of
- * single read operations. This is useful for a device that
- * does not support bulk read.
- * @use_single_write: If set, converts the bulk write operation into a series of
- * single write operations. This is useful for a device that
- * does not support bulk write.
- * @can_multi_write: If set, the device supports the multi write mode of bulk
- * write operations, if clear multi write requests will be
- * split into individual write operations
- *
- * @cache_type: The actual cache type.
- * @reg_defaults_raw: Power on reset values for registers (for use with
- * register cache support).
- * @num_reg_defaults_raw: Number of elements in reg_defaults_raw.
- * @reg_format_endian: Endianness for formatted register addresses. If this is
- * DEFAULT, the @reg_format_endian_default value from the
- * regmap bus is used.
- * @val_format_endian: Endianness for formatted register values. If this is
- * DEFAULT, the @reg_format_endian_default value from the
- * regmap bus is used.
- *
- * @ranges: Array of configuration entries for virtual address ranges.
- * @num_ranges: Number of range configuration entries.
- * @use_hwlock: Indicate if a hardware spinlock should be used.
- * @use_raw_spinlock: Indicate if a raw spinlock should be used.
- * @hwlock_id: Specify the hardware spinlock id.
- * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE,
- * HWLOCK_IRQ or 0.
- * @can_sleep: Optional, specifies whether regmap operations can sleep.
- */
- struct regmap_config {
- const char *name;
- int reg_bits;
- int reg_stride;
- int reg_downshift;
- unsigned int reg_base;
- int pad_bits;
- int val_bits;
- bool (*writeable_reg)(struct device *dev, unsigned int reg);
- bool (*readable_reg)(struct device *dev, unsigned int reg);
- bool (*volatile_reg)(struct device *dev, unsigned int reg);
- bool (*precious_reg)(struct device *dev, unsigned int reg);
- bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg);
- bool (*readable_noinc_reg)(struct device *dev, unsigned int reg);
- bool disable_locking;
- regmap_lock lock;
- regmap_unlock unlock;
- void *lock_arg;
- int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
- int (*reg_write)(void *context, unsigned int reg, unsigned int val);
- int (*reg_update_bits)(void *context, unsigned int reg,
- unsigned int mask, unsigned int val);
- /* Bulk read/write */
- int (*read)(void *context, const void *reg_buf, size_t reg_size,
- void *val_buf, size_t val_size);
- int (*write)(void *context, const void *data, size_t count);
- size_t max_raw_read;
- size_t max_raw_write;
- bool fast_io;
- bool io_port;
- unsigned int max_register;
- const struct regmap_access_table *wr_table;
- const struct regmap_access_table *rd_table;
- const struct regmap_access_table *volatile_table;
- const struct regmap_access_table *precious_table;
- const struct regmap_access_table *wr_noinc_table;
- const struct regmap_access_table *rd_noinc_table;
- const struct reg_default *reg_defaults;
- unsigned int num_reg_defaults;
- enum regcache_type cache_type;
- const void *reg_defaults_raw;
- unsigned int num_reg_defaults_raw;
- unsigned long read_flag_mask;
- unsigned long write_flag_mask;
- bool zero_flag_mask;
- bool use_single_read;
- bool use_single_write;
- bool use_relaxed_mmio;
- bool can_multi_write;
- enum regmap_endian reg_format_endian;
- enum regmap_endian val_format_endian;
- const struct regmap_range_cfg *ranges;
- unsigned int num_ranges;
- bool use_hwlock;
- bool use_raw_spinlock;
- unsigned int hwlock_id;
- unsigned int hwlock_mode;
- bool can_sleep;
- ANDROID_KABI_RESERVE(1);
- };
- /**
- * struct regmap_range_cfg - Configuration for indirectly accessed or paged
- * registers.
- *
- * @name: Descriptive name for diagnostics
- *
- * @range_min: Address of the lowest register address in virtual range.
- * @range_max: Address of the highest register in virtual range.
- *
- * @selector_reg: Register with selector field.
- * @selector_mask: Bit mask for selector value.
- * @selector_shift: Bit shift for selector value.
- *
- * @window_start: Address of first (lowest) register in data window.
- * @window_len: Number of registers in data window.
- *
- * Registers, mapped to this virtual range, are accessed in two steps:
- * 1. page selector register update;
- * 2. access through data window registers.
- */
- struct regmap_range_cfg {
- const char *name;
- /* Registers of virtual address range */
- unsigned int range_min;
- unsigned int range_max;
- /* Page selector for indirect addressing */
- unsigned int selector_reg;
- unsigned int selector_mask;
- int selector_shift;
- /* Data window (per each page) */
- unsigned int window_start;
- unsigned int window_len;
- ANDROID_KABI_RESERVE(1);
- };
- struct regmap_async;
- typedef int (*regmap_hw_write)(void *context, const void *data,
- size_t count);
- typedef int (*regmap_hw_gather_write)(void *context,
- const void *reg, size_t reg_len,
- const void *val, size_t val_len);
- typedef int (*regmap_hw_async_write)(void *context,
- const void *reg, size_t reg_len,
- const void *val, size_t val_len,
- struct regmap_async *async);
- typedef int (*regmap_hw_read)(void *context,
- const void *reg_buf, size_t reg_size,
- void *val_buf, size_t val_size);
- typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
- unsigned int *val);
- typedef int (*regmap_hw_reg_noinc_read)(void *context, unsigned int reg,
- void *val, size_t val_count);
- typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
- unsigned int val);
- typedef int (*regmap_hw_reg_noinc_write)(void *context, unsigned int reg,
- const void *val, size_t val_count);
- typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg,
- unsigned int mask, unsigned int val);
- typedef struct regmap_async *(*regmap_hw_async_alloc)(void);
- typedef void (*regmap_hw_free_context)(void *context);
- /**
- * struct regmap_bus - Description of a hardware bus for the register map
- * infrastructure.
- *
- * @fast_io: Register IO is fast. Use a spinlock instead of a mutex
- * to perform locking. This field is ignored if custom lock/unlock
- * functions are used (see fields lock/unlock of
- * struct regmap_config).
- * @write: Write operation.
- * @gather_write: Write operation with split register/value, return -ENOTSUPP
- * if not implemented on a given device.
- * @async_write: Write operation which completes asynchronously, optional and
- * must serialise with respect to non-async I/O.
- * @reg_write: Write a single register value to the given register address. This
- * write operation has to complete when returning from the function.
- * @reg_write_noinc: Write multiple register value to the same register. This
- * write operation has to complete when returning from the function.
- * @reg_update_bits: Update bits operation to be used against volatile
- * registers, intended for devices supporting some mechanism
- * for setting clearing bits without having to
- * read/modify/write.
- * @read: Read operation. Data is returned in the buffer used to transmit
- * data.
- * @reg_read: Read a single register value from a given register address.
- * @free_context: Free context.
- * @async_alloc: Allocate a regmap_async() structure.
- * @read_flag_mask: Mask to be set in the top byte of the register when doing
- * a read.
- * @reg_format_endian_default: Default endianness for formatted register
- * addresses. Used when the regmap_config specifies DEFAULT. If this is
- * DEFAULT, BIG is assumed.
- * @val_format_endian_default: Default endianness for formatted register
- * values. Used when the regmap_config specifies DEFAULT. If this is
- * DEFAULT, BIG is assumed.
- * @max_raw_read: Max raw read size that can be used on the bus.
- * @max_raw_write: Max raw write size that can be used on the bus.
- * @free_on_exit: kfree this on exit of regmap
- */
- struct regmap_bus {
- bool fast_io;
- regmap_hw_write write;
- regmap_hw_gather_write gather_write;
- regmap_hw_async_write async_write;
- regmap_hw_reg_write reg_write;
- regmap_hw_reg_noinc_write reg_noinc_write;
- regmap_hw_reg_update_bits reg_update_bits;
- regmap_hw_read read;
- regmap_hw_reg_read reg_read;
- regmap_hw_reg_noinc_read reg_noinc_read;
- regmap_hw_free_context free_context;
- regmap_hw_async_alloc async_alloc;
- u8 read_flag_mask;
- enum regmap_endian reg_format_endian_default;
- enum regmap_endian val_format_endian_default;
- size_t max_raw_read;
- size_t max_raw_write;
- bool free_on_exit;
- ANDROID_KABI_RESERVE(1);
- };
- /*
- * __regmap_init functions.
- *
- * These functions take a lock key and name parameter, and should not be called
- * directly. Instead, use the regmap_init macros that generate a key and name
- * for each call.
- */
- struct regmap *__regmap_init(struct device *dev,
- const struct regmap_bus *bus,
- void *bus_context,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_i2c(struct i2c_client *i2c,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_mdio(struct mdio_device *mdio_dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_sccb(struct i2c_client *i2c,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_slimbus(struct slim_device *slimbus,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_spi(struct spi_device *dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_spmi_base(struct spmi_device *dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_w1(struct device *w1_dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id,
- void __iomem *regs,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_sdw(struct sdw_slave *sdw,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__regmap_init_spi_avmm(struct spi_device *spi,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init(struct device *dev,
- const struct regmap_bus *bus,
- void *bus_context,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_mdio(struct mdio_device *mdio_dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_spi(struct spi_device *dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_w1(struct device *w1_dev,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_mmio_clk(struct device *dev,
- const char *clk_id,
- void __iomem *regs,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- struct regmap *__devm_regmap_init_spi_avmm(struct spi_device *spi,
- const struct regmap_config *config,
- struct lock_class_key *lock_key,
- const char *lock_name);
- /*
- * Wrapper for regmap_init macros to include a unique lockdep key and name
- * for each call. No-op if CONFIG_LOCKDEP is not set.
- *
- * @fn: Real function to call (in the form __[*_]regmap_init[_*])
- * @name: Config variable name (#config in the calling macro)
- **/
- #ifdef CONFIG_LOCKDEP
- #define __regmap_lockdep_wrapper(fn, name, ...) \
- ( \
- ({ \
- static struct lock_class_key _key; \
- fn(__VA_ARGS__, &_key, \
- KBUILD_BASENAME ":" \
- __stringify(__LINE__) ":" \
- "(" name ")->lock"); \
- }) \
- )
- #else
- #define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL)
- #endif
- /**
- * regmap_init() - Initialise register map
- *
- * @dev: Device that will be interacted with
- * @bus: Bus-specific callbacks to use with device
- * @bus_context: Data passed to bus-specific callbacks
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap. This function should generally not be called
- * directly, it should be called by bus-specific init functions.
- */
- #define regmap_init(dev, bus, bus_context, config) \
- __regmap_lockdep_wrapper(__regmap_init, #config, \
- dev, bus, bus_context, config)
- int regmap_attach_dev(struct device *dev, struct regmap *map,
- const struct regmap_config *config);
- /**
- * regmap_init_i2c() - Initialise register map
- *
- * @i2c: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_i2c(i2c, config) \
- __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \
- i2c, config)
- /**
- * regmap_init_mdio() - Initialise register map
- *
- * @mdio_dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_mdio(mdio_dev, config) \
- __regmap_lockdep_wrapper(__regmap_init_mdio, #config, \
- mdio_dev, config)
- /**
- * regmap_init_sccb() - Initialise register map
- *
- * @i2c: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_sccb(i2c, config) \
- __regmap_lockdep_wrapper(__regmap_init_sccb, #config, \
- i2c, config)
- /**
- * regmap_init_slimbus() - Initialise register map
- *
- * @slimbus: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_slimbus(slimbus, config) \
- __regmap_lockdep_wrapper(__regmap_init_slimbus, #config, \
- slimbus, config)
- /**
- * regmap_init_spi() - Initialise register map
- *
- * @dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_spi(dev, config) \
- __regmap_lockdep_wrapper(__regmap_init_spi, #config, \
- dev, config)
- /**
- * regmap_init_spmi_base() - Create regmap for the Base register space
- *
- * @dev: SPMI device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_spmi_base(dev, config) \
- __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \
- dev, config)
- /**
- * regmap_init_spmi_ext() - Create regmap for Ext register space
- *
- * @dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_spmi_ext(dev, config) \
- __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \
- dev, config)
- /**
- * regmap_init_w1() - Initialise register map
- *
- * @w1_dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_w1(w1_dev, config) \
- __regmap_lockdep_wrapper(__regmap_init_w1, #config, \
- w1_dev, config)
- /**
- * regmap_init_mmio_clk() - Initialise register map with register clock
- *
- * @dev: Device that will be interacted with
- * @clk_id: register clock consumer ID
- * @regs: Pointer to memory-mapped IO region
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_mmio_clk(dev, clk_id, regs, config) \
- __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \
- dev, clk_id, regs, config)
- /**
- * regmap_init_mmio() - Initialise register map
- *
- * @dev: Device that will be interacted with
- * @regs: Pointer to memory-mapped IO region
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_mmio(dev, regs, config) \
- regmap_init_mmio_clk(dev, NULL, regs, config)
- /**
- * regmap_init_ac97() - Initialise AC'97 register map
- *
- * @ac97: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_ac97(ac97, config) \
- __regmap_lockdep_wrapper(__regmap_init_ac97, #config, \
- ac97, config)
- bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
- /**
- * regmap_init_sdw() - Initialise register map
- *
- * @sdw: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_sdw(sdw, config) \
- __regmap_lockdep_wrapper(__regmap_init_sdw, #config, \
- sdw, config)
- /**
- * regmap_init_sdw_mbq() - Initialise register map
- *
- * @sdw: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
- #define regmap_init_sdw_mbq(sdw, config) \
- __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \
- sdw, config)
- /**
- * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave
- * to AVMM Bus Bridge
- *
- * @spi: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap.
- */
- #define regmap_init_spi_avmm(spi, config) \
- __regmap_lockdep_wrapper(__regmap_init_spi_avmm, #config, \
- spi, config)
- /**
- * devm_regmap_init() - Initialise managed register map
- *
- * @dev: Device that will be interacted with
- * @bus: Bus-specific callbacks to use with device
- * @bus_context: Data passed to bus-specific callbacks
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. This function should generally not be called
- * directly, it should be called by bus-specific init functions. The
- * map will be automatically freed by the device management code.
- */
- #define devm_regmap_init(dev, bus, bus_context, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init, #config, \
- dev, bus, bus_context, config)
- /**
- * devm_regmap_init_i2c() - Initialise managed register map
- *
- * @i2c: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_i2c(i2c, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \
- i2c, config)
- /**
- * devm_regmap_init_mdio() - Initialise managed register map
- *
- * @mdio_dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_mdio(mdio_dev, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_mdio, #config, \
- mdio_dev, config)
- /**
- * devm_regmap_init_sccb() - Initialise managed register map
- *
- * @i2c: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_sccb(i2c, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_sccb, #config, \
- i2c, config)
- /**
- * devm_regmap_init_spi() - Initialise register map
- *
- * @dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The map will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_spi(dev, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \
- dev, config)
- /**
- * devm_regmap_init_spmi_base() - Create managed regmap for Base register space
- *
- * @dev: SPMI device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_spmi_base(dev, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \
- dev, config)
- /**
- * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space
- *
- * @dev: SPMI device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_spmi_ext(dev, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \
- dev, config)
- /**
- * devm_regmap_init_w1() - Initialise managed register map
- *
- * @w1_dev: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_w1(w1_dev, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_w1, #config, \
- w1_dev, config)
- /**
- * devm_regmap_init_mmio_clk() - Initialise managed register map with clock
- *
- * @dev: Device that will be interacted with
- * @clk_id: register clock consumer ID
- * @regs: Pointer to memory-mapped IO region
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_mmio_clk(dev, clk_id, regs, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config, \
- dev, clk_id, regs, config)
- /**
- * devm_regmap_init_mmio() - Initialise managed register map
- *
- * @dev: Device that will be interacted with
- * @regs: Pointer to memory-mapped IO region
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_mmio(dev, regs, config) \
- devm_regmap_init_mmio_clk(dev, NULL, regs, config)
- /**
- * devm_regmap_init_ac97() - Initialise AC'97 register map
- *
- * @ac97: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_ac97(ac97, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \
- ac97, config)
- /**
- * devm_regmap_init_sdw() - Initialise managed register map
- *
- * @sdw: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_sdw(sdw, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \
- sdw, config)
- /**
- * devm_regmap_init_sdw_mbq() - Initialise managed register map
- *
- * @sdw: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_sdw_mbq(sdw, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config, \
- sdw, config)
- /**
- * devm_regmap_init_slimbus() - Initialise managed register map
- *
- * @slimbus: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_slimbus(slimbus, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config, \
- slimbus, config)
- /**
- * devm_regmap_init_i3c() - Initialise managed register map
- *
- * @i3c: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The regmap will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_i3c(i3c, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_i3c, #config, \
- i3c, config)
- /**
- * devm_regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave
- * to AVMM Bus Bridge
- *
- * @spi: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap. The map will be automatically freed by the
- * device management code.
- */
- #define devm_regmap_init_spi_avmm(spi, config) \
- __regmap_lockdep_wrapper(__devm_regmap_init_spi_avmm, #config, \
- spi, config)
- int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk);
- void regmap_mmio_detach_clk(struct regmap *map);
- void regmap_exit(struct regmap *map);
- int regmap_reinit_cache(struct regmap *map,
- const struct regmap_config *config);
- struct regmap *dev_get_regmap(struct device *dev, const char *name);
- struct device *regmap_get_device(struct regmap *map);
- int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
- int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
- int regmap_raw_write(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len);
- int regmap_noinc_write(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len);
- int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
- size_t val_count);
- int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs,
- int num_regs);
- int regmap_multi_reg_write_bypassed(struct regmap *map,
- const struct reg_sequence *regs,
- int num_regs);
- int regmap_raw_write_async(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len);
- int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
- int regmap_raw_read(struct regmap *map, unsigned int reg,
- void *val, size_t val_len);
- int regmap_noinc_read(struct regmap *map, unsigned int reg,
- void *val, size_t val_len);
- int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
- size_t val_count);
- int regmap_update_bits_base(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val,
- bool *change, bool async, bool force);
- static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val)
- {
- return regmap_update_bits_base(map, reg, mask, val, NULL, false, false);
- }
- static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val)
- {
- return regmap_update_bits_base(map, reg, mask, val, NULL, true, false);
- }
- static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val,
- bool *change)
- {
- return regmap_update_bits_base(map, reg, mask, val,
- change, false, false);
- }
- static inline int
- regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val,
- bool *change)
- {
- return regmap_update_bits_base(map, reg, mask, val,
- change, true, false);
- }
- static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val)
- {
- return regmap_update_bits_base(map, reg, mask, val, NULL, false, true);
- }
- int regmap_get_val_bytes(struct regmap *map);
- int regmap_get_max_register(struct regmap *map);
- int regmap_get_reg_stride(struct regmap *map);
- int regmap_async_complete(struct regmap *map);
- bool regmap_can_raw_write(struct regmap *map);
- size_t regmap_get_raw_read_max(struct regmap *map);
- size_t regmap_get_raw_write_max(struct regmap *map);
- int regcache_sync(struct regmap *map);
- int regcache_sync_region(struct regmap *map, unsigned int min,
- unsigned int max);
- int regcache_drop_region(struct regmap *map, unsigned int min,
- unsigned int max);
- void regcache_cache_only(struct regmap *map, bool enable);
- void regcache_cache_bypass(struct regmap *map, bool enable);
- void regcache_mark_dirty(struct regmap *map);
- bool regmap_check_range_table(struct regmap *map, unsigned int reg,
- const struct regmap_access_table *table);
- int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs,
- int num_regs);
- int regmap_parse_val(struct regmap *map, const void *buf,
- unsigned int *val);
- static inline bool regmap_reg_in_range(unsigned int reg,
- const struct regmap_range *range)
- {
- return reg >= range->range_min && reg <= range->range_max;
- }
- bool regmap_reg_in_ranges(unsigned int reg,
- const struct regmap_range *ranges,
- unsigned int nranges);
- static inline int regmap_set_bits(struct regmap *map,
- unsigned int reg, unsigned int bits)
- {
- return regmap_update_bits_base(map, reg, bits, bits,
- NULL, false, false);
- }
- static inline int regmap_clear_bits(struct regmap *map,
- unsigned int reg, unsigned int bits)
- {
- return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false);
- }
- int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits);
- /**
- * struct reg_field - Description of an register field
- *
- * @reg: Offset of the register within the regmap bank
- * @lsb: lsb of the register field.
- * @msb: msb of the register field.
- * @id_size: port size if it has some ports
- * @id_offset: address offset for each ports
- */
- struct reg_field {
- unsigned int reg;
- unsigned int lsb;
- unsigned int msb;
- unsigned int id_size;
- unsigned int id_offset;
- };
- #define REG_FIELD(_reg, _lsb, _msb) { \
- .reg = _reg, \
- .lsb = _lsb, \
- .msb = _msb, \
- }
- #define REG_FIELD_ID(_reg, _lsb, _msb, _size, _offset) { \
- .reg = _reg, \
- .lsb = _lsb, \
- .msb = _msb, \
- .id_size = _size, \
- .id_offset = _offset, \
- }
- struct regmap_field *regmap_field_alloc(struct regmap *regmap,
- struct reg_field reg_field);
- void regmap_field_free(struct regmap_field *field);
- struct regmap_field *devm_regmap_field_alloc(struct device *dev,
- struct regmap *regmap, struct reg_field reg_field);
- void devm_regmap_field_free(struct device *dev, struct regmap_field *field);
- int regmap_field_bulk_alloc(struct regmap *regmap,
- struct regmap_field **rm_field,
- const struct reg_field *reg_field,
- int num_fields);
- void regmap_field_bulk_free(struct regmap_field *field);
- int devm_regmap_field_bulk_alloc(struct device *dev, struct regmap *regmap,
- struct regmap_field **field,
- const struct reg_field *reg_field,
- int num_fields);
- void devm_regmap_field_bulk_free(struct device *dev,
- struct regmap_field *field);
- int regmap_field_read(struct regmap_field *field, unsigned int *val);
- int regmap_field_update_bits_base(struct regmap_field *field,
- unsigned int mask, unsigned int val,
- bool *change, bool async, bool force);
- int regmap_fields_read(struct regmap_field *field, unsigned int id,
- unsigned int *val);
- int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id,
- unsigned int mask, unsigned int val,
- bool *change, bool async, bool force);
- static inline int regmap_field_write(struct regmap_field *field,
- unsigned int val)
- {
- return regmap_field_update_bits_base(field, ~0, val,
- NULL, false, false);
- }
- static inline int regmap_field_force_write(struct regmap_field *field,
- unsigned int val)
- {
- return regmap_field_update_bits_base(field, ~0, val, NULL, false, true);
- }
- static inline int regmap_field_update_bits(struct regmap_field *field,
- unsigned int mask, unsigned int val)
- {
- return regmap_field_update_bits_base(field, mask, val,
- NULL, false, false);
- }
- static inline int regmap_field_set_bits(struct regmap_field *field,
- unsigned int bits)
- {
- return regmap_field_update_bits_base(field, bits, bits, NULL, false,
- false);
- }
- static inline int regmap_field_clear_bits(struct regmap_field *field,
- unsigned int bits)
- {
- return regmap_field_update_bits_base(field, bits, 0, NULL, false,
- false);
- }
- int regmap_field_test_bits(struct regmap_field *field, unsigned int bits);
- static inline int
- regmap_field_force_update_bits(struct regmap_field *field,
- unsigned int mask, unsigned int val)
- {
- return regmap_field_update_bits_base(field, mask, val,
- NULL, false, true);
- }
- static inline int regmap_fields_write(struct regmap_field *field,
- unsigned int id, unsigned int val)
- {
- return regmap_fields_update_bits_base(field, id, ~0, val,
- NULL, false, false);
- }
- static inline int regmap_fields_force_write(struct regmap_field *field,
- unsigned int id, unsigned int val)
- {
- return regmap_fields_update_bits_base(field, id, ~0, val,
- NULL, false, true);
- }
- static inline int
- regmap_fields_update_bits(struct regmap_field *field, unsigned int id,
- unsigned int mask, unsigned int val)
- {
- return regmap_fields_update_bits_base(field, id, mask, val,
- NULL, false, false);
- }
- static inline int
- regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id,
- unsigned int mask, unsigned int val)
- {
- return regmap_fields_update_bits_base(field, id, mask, val,
- NULL, false, true);
- }
- /**
- * struct regmap_irq_type - IRQ type definitions.
- *
- * @type_reg_offset: Offset register for the irq type setting.
- * @type_rising_val: Register value to configure RISING type irq.
- * @type_falling_val: Register value to configure FALLING type irq.
- * @type_level_low_val: Register value to configure LEVEL_LOW type irq.
- * @type_level_high_val: Register value to configure LEVEL_HIGH type irq.
- * @types_supported: logical OR of IRQ_TYPE_* flags indicating supported types.
- */
- struct regmap_irq_type {
- unsigned int type_reg_offset;
- unsigned int type_reg_mask;
- unsigned int type_rising_val;
- unsigned int type_falling_val;
- unsigned int type_level_low_val;
- unsigned int type_level_high_val;
- unsigned int types_supported;
- };
- /**
- * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip.
- *
- * @reg_offset: Offset of the status/mask register within the bank
- * @mask: Mask used to flag/control the register.
- * @type: IRQ trigger type setting details if supported.
- */
- struct regmap_irq {
- unsigned int reg_offset;
- unsigned int mask;
- struct regmap_irq_type type;
- };
- #define REGMAP_IRQ_REG(_irq, _off, _mask) \
- [_irq] = { .reg_offset = (_off), .mask = (_mask) }
- #define REGMAP_IRQ_REG_LINE(_id, _reg_bits) \
- [_id] = { \
- .mask = BIT((_id) % (_reg_bits)), \
- .reg_offset = (_id) / (_reg_bits), \
- }
- #define REGMAP_IRQ_MAIN_REG_OFFSET(arr) \
- { .num_regs = ARRAY_SIZE((arr)), .offset = &(arr)[0] }
- struct regmap_irq_sub_irq_map {
- unsigned int num_regs;
- unsigned int *offset;
- };
- struct regmap_irq_chip_data;
- /**
- * struct regmap_irq_chip - Description of a generic regmap irq_chip.
- *
- * @name: Descriptive name for IRQ controller.
- *
- * @main_status: Base main status register address. For chips which have
- * interrupts arranged in separate sub-irq blocks with own IRQ
- * registers and which have a main IRQ registers indicating
- * sub-irq blocks with unhandled interrupts. For such chips fill
- * sub-irq register information in status_base, mask_base and
- * ack_base.
- * @num_main_status_bits: Should be given to chips where number of meaningfull
- * main status bits differs from num_regs.
- * @sub_reg_offsets: arrays of mappings from main register bits to sub irq
- * registers. First item in array describes the registers
- * for first main status bit. Second array for second bit etc.
- * Offset is given as sub register status offset to
- * status_base. Should contain num_regs arrays.
- * Can be provided for chips with more complex mapping than
- * 1.st bit to 1.st sub-reg, 2.nd bit to 2.nd sub-reg, ...
- * When used with not_fixed_stride, each one-element array
- * member contains offset calculated as address from each
- * peripheral to first peripheral.
- * @num_main_regs: Number of 'main status' irq registers for chips which have
- * main_status set.
- *
- * @status_base: Base status register address.
- * @mask_base: Base mask register address. Mask bits are set to 1 when an
- * interrupt is masked, 0 when unmasked.
- * @unmask_base: Base unmask register address. Unmask bits are set to 1 when
- * an interrupt is unmasked and 0 when masked.
- * @ack_base: Base ack address. If zero then the chip is clear on read.
- * Using zero value is possible with @use_ack bit.
- * @wake_base: Base address for wake enables. If zero unsupported.
- * @type_base: Base address for irq type. If zero unsupported. Deprecated,
- * use @config_base instead.
- * @virt_reg_base: Base addresses for extra config regs. Deprecated, use
- * @config_base instead.
- * @config_base: Base address for IRQ type config regs. If null unsupported.
- * @irq_reg_stride: Stride to use for chips where registers are not contiguous.
- * @init_ack_masked: Ack all masked interrupts once during initalization.
- * @mask_invert: Inverted mask register: cleared bits are masked out.
- * Deprecated; prefer describing an inverted mask register as
- * an unmask register.
- * @mask_unmask_non_inverted: Controls mask bit inversion for chips that set
- * both @mask_base and @unmask_base. If false, mask and unmask bits are
- * inverted (which is deprecated behavior); if true, bits will not be
- * inverted and the registers keep their normal behavior. Note that if
- * you use only one of @mask_base or @unmask_base, this flag has no
- * effect and is unnecessary. Any new drivers that set both @mask_base
- * and @unmask_base should set this to true to avoid relying on the
- * deprecated behavior.
- * @use_ack: Use @ack register even if it is zero.
- * @ack_invert: Inverted ack register: cleared bits for ack.
- * @clear_ack: Use this to set 1 and 0 or vice-versa to clear interrupts.
- * @wake_invert: Inverted wake register: cleared bits are wake enabled.
- * @type_invert: Invert the type flags. Deprecated, use config registers
- * instead.
- * @type_in_mask: Use the mask registers for controlling irq type. Use this if
- * the hardware provides separate bits for rising/falling edge
- * or low/high level interrupts and they should be combined into
- * a single logical interrupt. Use &struct regmap_irq_type data
- * to define the mask bit for each irq type.
- * @clear_on_unmask: For chips with interrupts cleared on read: read the status
- * registers before unmasking interrupts to clear any bits
- * set when they were masked.
- * @not_fixed_stride: Used when chip peripherals are not laid out with fixed
- * stride. Must be used with sub_reg_offsets containing the
- * offsets to each peripheral. Deprecated; the same thing
- * can be accomplished with a @get_irq_reg callback, without
- * the need for a @sub_reg_offsets table.
- * @status_invert: Inverted status register: cleared bits are active interrupts.
- * @runtime_pm: Hold a runtime PM lock on the device when accessing it.
- *
- * @num_regs: Number of registers in each control bank.
- * @irqs: Descriptors for individual IRQs. Interrupt numbers are
- * assigned based on the index in the array of the interrupt.
- * @num_irqs: Number of descriptors.
- * @num_type_reg: Number of type registers. Deprecated, use config registers
- * instead.
- * @num_virt_regs: Number of non-standard irq configuration registers.
- * If zero unsupported. Deprecated, use config registers
- * instead.
- * @num_config_bases: Number of config base registers.
- * @num_config_regs: Number of config registers for each config base register.
- * @handle_pre_irq: Driver specific callback to handle interrupt from device
- * before regmap_irq_handler process the interrupts.
- * @handle_post_irq: Driver specific callback to handle interrupt from device
- * after handling the interrupts in regmap_irq_handler().
- * @set_type_virt: Driver specific callback to extend regmap_irq_set_type()
- * and configure virt regs. Deprecated, use @set_type_config
- * callback and config registers instead.
- * @set_type_config: Callback used for configuring irq types.
- * @get_irq_reg: Callback for mapping (base register, index) pairs to register
- * addresses. The base register will be one of @status_base,
- * @mask_base, etc., @main_status, or any of @config_base.
- * The index will be in the range [0, num_main_regs[ for the
- * main status base, [0, num_type_settings[ for any config
- * register base, and [0, num_regs[ for any other base.
- * If unspecified then regmap_irq_get_irq_reg_linear() is used.
- * @irq_drv_data: Driver specific IRQ data which is passed as parameter when
- * driver specific pre/post interrupt handler is called.
- *
- * This is not intended to handle every possible interrupt controller, but
- * it should handle a substantial proportion of those that are found in the
- * wild.
- */
- struct regmap_irq_chip {
- const char *name;
- unsigned int main_status;
- unsigned int num_main_status_bits;
- struct regmap_irq_sub_irq_map *sub_reg_offsets;
- int num_main_regs;
- unsigned int status_base;
- unsigned int mask_base;
- unsigned int unmask_base;
- unsigned int ack_base;
- unsigned int wake_base;
- unsigned int type_base;
- unsigned int *virt_reg_base;
- const unsigned int *config_base;
- unsigned int irq_reg_stride;
- unsigned int init_ack_masked:1;
- unsigned int mask_invert:1;
- unsigned int mask_unmask_non_inverted:1;
- unsigned int use_ack:1;
- unsigned int ack_invert:1;
- unsigned int clear_ack:1;
- unsigned int wake_invert:1;
- unsigned int runtime_pm:1;
- unsigned int type_invert:1;
- unsigned int type_in_mask:1;
- unsigned int clear_on_unmask:1;
- unsigned int not_fixed_stride:1;
- unsigned int status_invert:1;
- int num_regs;
- const struct regmap_irq *irqs;
- int num_irqs;
- int num_type_reg;
- int num_virt_regs;
- int num_config_bases;
- int num_config_regs;
- int (*handle_pre_irq)(void *irq_drv_data);
- int (*handle_post_irq)(void *irq_drv_data);
- int (*set_type_virt)(unsigned int **buf, unsigned int type,
- unsigned long hwirq, int reg);
- int (*set_type_config)(unsigned int **buf, unsigned int type,
- const struct regmap_irq *irq_data, int idx);
- unsigned int (*get_irq_reg)(struct regmap_irq_chip_data *data,
- unsigned int base, int index);
- void *irq_drv_data;
- };
- unsigned int regmap_irq_get_irq_reg_linear(struct regmap_irq_chip_data *data,
- unsigned int base, int index);
- int regmap_irq_set_type_config_simple(unsigned int **buf, unsigned int type,
- const struct regmap_irq *irq_data, int idx);
- int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
- int irq_base, const struct regmap_irq_chip *chip,
- struct regmap_irq_chip_data **data);
- int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
- struct regmap *map, int irq,
- int irq_flags, int irq_base,
- const struct regmap_irq_chip *chip,
- struct regmap_irq_chip_data **data);
- void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);
- int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq,
- int irq_flags, int irq_base,
- const struct regmap_irq_chip *chip,
- struct regmap_irq_chip_data **data);
- int devm_regmap_add_irq_chip_fwnode(struct device *dev,
- struct fwnode_handle *fwnode,
- struct regmap *map, int irq,
- int irq_flags, int irq_base,
- const struct regmap_irq_chip *chip,
- struct regmap_irq_chip_data **data);
- void devm_regmap_del_irq_chip(struct device *dev, int irq,
- struct regmap_irq_chip_data *data);
- int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
- int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq);
- struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data);
- #else
- /*
- * These stubs should only ever be called by generic code which has
- * regmap based facilities, if they ever get called at runtime
- * something is going wrong and something probably needs to select
- * REGMAP.
- */
- static inline int regmap_write(struct regmap *map, unsigned int reg,
- unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_write_async(struct regmap *map, unsigned int reg,
- unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_raw_write(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_noinc_write(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_bulk_write(struct regmap *map, unsigned int reg,
- const void *val, size_t val_count)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_read(struct regmap *map, unsigned int reg,
- unsigned int *val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_raw_read(struct regmap *map, unsigned int reg,
- void *val, size_t val_len)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_noinc_read(struct regmap *map, unsigned int reg,
- void *val, size_t val_len)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_bulk_read(struct regmap *map, unsigned int reg,
- void *val, size_t val_count)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val,
- bool *change, bool async, bool force)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_set_bits(struct regmap *map,
- unsigned int reg, unsigned int bits)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_clear_bits(struct regmap *map,
- unsigned int reg, unsigned int bits)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_test_bits(struct regmap *map,
- unsigned int reg, unsigned int bits)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_update_bits_base(struct regmap_field *field,
- unsigned int mask, unsigned int val,
- bool *change, bool async, bool force)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_fields_update_bits_base(struct regmap_field *field,
- unsigned int id,
- unsigned int mask, unsigned int val,
- bool *change, bool async, bool force)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val,
- bool *change)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int
- regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val,
- bool *change)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_write(struct regmap_field *field,
- unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_force_write(struct regmap_field *field,
- unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_update_bits(struct regmap_field *field,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int
- regmap_field_force_update_bits(struct regmap_field *field,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_set_bits(struct regmap_field *field,
- unsigned int bits)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_clear_bits(struct regmap_field *field,
- unsigned int bits)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_field_test_bits(struct regmap_field *field,
- unsigned int bits)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_fields_write(struct regmap_field *field,
- unsigned int id, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_fields_force_write(struct regmap_field *field,
- unsigned int id, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int
- regmap_fields_update_bits(struct regmap_field *field, unsigned int id,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int
- regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id,
- unsigned int mask, unsigned int val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_get_val_bytes(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_get_max_register(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_get_reg_stride(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regcache_sync(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regcache_sync_region(struct regmap *map, unsigned int min,
- unsigned int max)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regcache_drop_region(struct regmap *map, unsigned int min,
- unsigned int max)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline void regcache_cache_only(struct regmap *map, bool enable)
- {
- WARN_ONCE(1, "regmap API is disabled");
- }
- static inline void regcache_cache_bypass(struct regmap *map, bool enable)
- {
- WARN_ONCE(1, "regmap API is disabled");
- }
- static inline void regcache_mark_dirty(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- }
- static inline void regmap_async_complete(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- }
- static inline int regmap_register_patch(struct regmap *map,
- const struct reg_sequence *regs,
- int num_regs)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline int regmap_parse_val(struct regmap *map, const void *buf,
- unsigned int *val)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return -EINVAL;
- }
- static inline struct regmap *dev_get_regmap(struct device *dev,
- const char *name)
- {
- return NULL;
- }
- static inline struct device *regmap_get_device(struct regmap *map)
- {
- WARN_ONCE(1, "regmap API is disabled");
- return NULL;
- }
- #endif
- #endif
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