3ac170376f
Some busses do not support sending/receiving multiple registers in one go. Such kind of busses just unpack the registers that have been previously packed by the regmap core or pack registers that will be later unpacked by the core code. Add reg_write and reg_read callbacks in order to optimize access through this kind of busses. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
735 lines
24 KiB
C
735 lines
24 KiB
C
#ifndef __LINUX_REGMAP_H
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#define __LINUX_REGMAP_H
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/*
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* Register map access API
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*
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* Copyright 2011 Wolfson Microelectronics plc
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <linux/err.h>
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#include <linux/bug.h>
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struct module;
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struct device;
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struct i2c_client;
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struct irq_domain;
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struct spi_device;
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struct spmi_device;
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struct regmap;
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struct regmap_range_cfg;
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struct regmap_field;
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/* An enum of all the supported cache types */
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enum regcache_type {
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REGCACHE_NONE,
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REGCACHE_RBTREE,
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REGCACHE_COMPRESSED,
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REGCACHE_FLAT,
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};
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/**
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* Default value for a register. We use an array of structs rather
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* than a simple array as many modern devices have very sparse
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* register maps.
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*
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* @reg: Register address.
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* @def: Register default value.
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*/
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struct reg_default {
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unsigned int reg;
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unsigned int def;
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};
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#ifdef CONFIG_REGMAP
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enum regmap_endian {
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/* Unspecified -> 0 -> Backwards compatible default */
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REGMAP_ENDIAN_DEFAULT = 0,
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REGMAP_ENDIAN_BIG,
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REGMAP_ENDIAN_LITTLE,
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REGMAP_ENDIAN_NATIVE,
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};
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/**
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* A register range, used for access related checks
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* (readable/writeable/volatile/precious checks)
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*
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* @range_min: address of first register
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* @range_max: address of last register
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*/
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struct regmap_range {
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unsigned int range_min;
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unsigned int range_max;
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};
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#define regmap_reg_range(low, high) { .range_min = low, .range_max = high, }
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/*
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* A table of ranges including some yes ranges and some no ranges.
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* If a register belongs to a no_range, the corresponding check function
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* will return false. If a register belongs to a yes range, the corresponding
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* check function will return true. "no_ranges" are searched first.
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*
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* @yes_ranges : pointer to an array of regmap ranges used as "yes ranges"
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* @n_yes_ranges: size of the above array
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* @no_ranges: pointer to an array of regmap ranges used as "no ranges"
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* @n_no_ranges: size of the above array
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*/
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struct regmap_access_table {
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const struct regmap_range *yes_ranges;
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unsigned int n_yes_ranges;
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const struct regmap_range *no_ranges;
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unsigned int n_no_ranges;
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};
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typedef void (*regmap_lock)(void *);
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typedef void (*regmap_unlock)(void *);
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/**
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* Configuration for the register map of a device.
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*
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* @name: Optional name of the regmap. Useful when a device has multiple
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* register regions.
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*
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* @reg_bits: Number of bits in a register address, mandatory.
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* @reg_stride: The register address stride. Valid register addresses are a
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* multiple of this value. If set to 0, a value of 1 will be
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* used.
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* @pad_bits: Number of bits of padding between register and value.
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* @val_bits: Number of bits in a register value, mandatory.
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*
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* @writeable_reg: Optional callback returning true if the register
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* can be written to. If this field is NULL but wr_table
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* (see below) is not, the check is performed on such table
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* (a register is writeable if it belongs to one of the ranges
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* specified by wr_table).
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* @readable_reg: Optional callback returning true if the register
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* can be read from. If this field is NULL but rd_table
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* (see below) is not, the check is performed on such table
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* (a register is readable if it belongs to one of the ranges
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* specified by rd_table).
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* @volatile_reg: Optional callback returning true if the register
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* value can't be cached. If this field is NULL but
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* volatile_table (see below) is not, the check is performed on
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* such table (a register is volatile if it belongs to one of
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* the ranges specified by volatile_table).
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* @precious_reg: Optional callback returning true if the register
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* should not be read outside of a call from the driver
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* (e.g., a clear on read interrupt status register). If this
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* field is NULL but precious_table (see below) is not, the
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* check is performed on such table (a register is precious if
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* it belongs to one of the ranges specified by precious_table).
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* @lock: Optional lock callback (overrides regmap's default lock
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* function, based on spinlock or mutex).
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* @unlock: As above for unlocking.
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* @lock_arg: this field is passed as the only argument of lock/unlock
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* functions (ignored in case regular lock/unlock functions
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* are not overridden).
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* @reg_read: Optional callback that if filled will be used to perform
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* all the reads from the registers. Should only be provided for
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* devices whose read operation cannot be represented as a simple
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* read operation on a bus such as SPI, I2C, etc. Most of the
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* devices do not need this.
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* @reg_write: Same as above for writing.
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* @fast_io: Register IO is fast. Use a spinlock instead of a mutex
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* to perform locking. This field is ignored if custom lock/unlock
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* functions are used (see fields lock/unlock of struct regmap_config).
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* This field is a duplicate of a similar file in
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* 'struct regmap_bus' and serves exact same purpose.
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* Use it only for "no-bus" cases.
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* @max_register: Optional, specifies the maximum valid register index.
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* @wr_table: Optional, points to a struct regmap_access_table specifying
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* valid ranges for write access.
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* @rd_table: As above, for read access.
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* @volatile_table: As above, for volatile registers.
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* @precious_table: As above, for precious registers.
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* @reg_defaults: Power on reset values for registers (for use with
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* register cache support).
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* @num_reg_defaults: Number of elements in reg_defaults.
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*
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* @read_flag_mask: Mask to be set in the top byte of the register when doing
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* a read.
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* @write_flag_mask: Mask to be set in the top byte of the register when doing
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* a write. If both read_flag_mask and write_flag_mask are
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* empty the regmap_bus default masks are used.
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* @use_single_rw: If set, converts the bulk read and write operations into
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* a series of single read and write operations. This is useful
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* for device that does not support bulk read and write.
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* @can_multi_write: If set, the device supports the multi write mode of bulk
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* write operations, if clear multi write requests will be
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* split into individual write operations
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*
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* @cache_type: The actual cache type.
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* @reg_defaults_raw: Power on reset values for registers (for use with
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* register cache support).
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* @num_reg_defaults_raw: Number of elements in reg_defaults_raw.
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* @reg_format_endian: Endianness for formatted register addresses. If this is
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* DEFAULT, the @reg_format_endian_default value from the
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* regmap bus is used.
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* @val_format_endian: Endianness for formatted register values. If this is
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* DEFAULT, the @reg_format_endian_default value from the
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* regmap bus is used.
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*
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* @ranges: Array of configuration entries for virtual address ranges.
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* @num_ranges: Number of range configuration entries.
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*/
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struct regmap_config {
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const char *name;
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int reg_bits;
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int reg_stride;
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int pad_bits;
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int val_bits;
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bool (*writeable_reg)(struct device *dev, unsigned int reg);
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bool (*readable_reg)(struct device *dev, unsigned int reg);
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bool (*volatile_reg)(struct device *dev, unsigned int reg);
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bool (*precious_reg)(struct device *dev, unsigned int reg);
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regmap_lock lock;
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regmap_unlock unlock;
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void *lock_arg;
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int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
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int (*reg_write)(void *context, unsigned int reg, unsigned int val);
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bool fast_io;
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unsigned int max_register;
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const struct regmap_access_table *wr_table;
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const struct regmap_access_table *rd_table;
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const struct regmap_access_table *volatile_table;
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const struct regmap_access_table *precious_table;
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const struct reg_default *reg_defaults;
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unsigned int num_reg_defaults;
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enum regcache_type cache_type;
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const void *reg_defaults_raw;
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unsigned int num_reg_defaults_raw;
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u8 read_flag_mask;
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u8 write_flag_mask;
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bool use_single_rw;
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bool can_multi_write;
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enum regmap_endian reg_format_endian;
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enum regmap_endian val_format_endian;
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const struct regmap_range_cfg *ranges;
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unsigned int num_ranges;
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};
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/**
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* Configuration for indirectly accessed or paged registers.
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* Registers, mapped to this virtual range, are accessed in two steps:
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* 1. page selector register update;
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* 2. access through data window registers.
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*
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* @name: Descriptive name for diagnostics
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*
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* @range_min: Address of the lowest register address in virtual range.
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* @range_max: Address of the highest register in virtual range.
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*
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* @page_sel_reg: Register with selector field.
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* @page_sel_mask: Bit shift for selector value.
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* @page_sel_shift: Bit mask for selector value.
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*
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* @window_start: Address of first (lowest) register in data window.
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* @window_len: Number of registers in data window.
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*/
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struct regmap_range_cfg {
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const char *name;
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/* Registers of virtual address range */
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unsigned int range_min;
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unsigned int range_max;
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/* Page selector for indirect addressing */
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unsigned int selector_reg;
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unsigned int selector_mask;
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int selector_shift;
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/* Data window (per each page) */
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unsigned int window_start;
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unsigned int window_len;
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};
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struct regmap_async;
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typedef int (*regmap_hw_write)(void *context, const void *data,
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size_t count);
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typedef int (*regmap_hw_gather_write)(void *context,
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const void *reg, size_t reg_len,
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const void *val, size_t val_len);
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typedef int (*regmap_hw_async_write)(void *context,
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const void *reg, size_t reg_len,
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const void *val, size_t val_len,
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struct regmap_async *async);
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typedef int (*regmap_hw_read)(void *context,
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const void *reg_buf, size_t reg_size,
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void *val_buf, size_t val_size);
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typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
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unsigned int *val);
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typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
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unsigned int val);
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typedef struct regmap_async *(*regmap_hw_async_alloc)(void);
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typedef void (*regmap_hw_free_context)(void *context);
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/**
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* Description of a hardware bus for the register map infrastructure.
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*
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* @fast_io: Register IO is fast. Use a spinlock instead of a mutex
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* to perform locking. This field is ignored if custom lock/unlock
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* functions are used (see fields lock/unlock of
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* struct regmap_config).
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* @write: Write operation.
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* @gather_write: Write operation with split register/value, return -ENOTSUPP
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* if not implemented on a given device.
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* @async_write: Write operation which completes asynchronously, optional and
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* must serialise with respect to non-async I/O.
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* @read: Read operation. Data is returned in the buffer used to transmit
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* data.
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* @async_alloc: Allocate a regmap_async() structure.
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* @read_flag_mask: Mask to be set in the top byte of the register when doing
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* a read.
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* @reg_format_endian_default: Default endianness for formatted register
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* addresses. Used when the regmap_config specifies DEFAULT. If this is
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* DEFAULT, BIG is assumed.
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* @val_format_endian_default: Default endianness for formatted register
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* values. Used when the regmap_config specifies DEFAULT. If this is
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* DEFAULT, BIG is assumed.
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* @async_size: Size of struct used for async work.
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*/
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struct regmap_bus {
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bool fast_io;
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regmap_hw_write write;
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regmap_hw_gather_write gather_write;
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regmap_hw_async_write async_write;
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regmap_hw_reg_write reg_write;
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regmap_hw_read read;
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regmap_hw_reg_read reg_read;
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regmap_hw_free_context free_context;
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regmap_hw_async_alloc async_alloc;
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u8 read_flag_mask;
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enum regmap_endian reg_format_endian_default;
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enum regmap_endian val_format_endian_default;
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};
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struct regmap *regmap_init(struct device *dev,
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const struct regmap_bus *bus,
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void *bus_context,
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const struct regmap_config *config);
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int regmap_attach_dev(struct device *dev, struct regmap *map,
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const struct regmap_config *config);
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struct regmap *regmap_init_i2c(struct i2c_client *i2c,
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const struct regmap_config *config);
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struct regmap *regmap_init_spi(struct spi_device *dev,
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const struct regmap_config *config);
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struct regmap *regmap_init_spmi_base(struct spmi_device *dev,
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const struct regmap_config *config);
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struct regmap *regmap_init_spmi_ext(struct spmi_device *dev,
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const struct regmap_config *config);
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struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id,
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void __iomem *regs,
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const struct regmap_config *config);
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struct regmap *devm_regmap_init(struct device *dev,
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const struct regmap_bus *bus,
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void *bus_context,
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const struct regmap_config *config);
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struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c,
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const struct regmap_config *config);
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struct regmap *devm_regmap_init_spi(struct spi_device *dev,
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const struct regmap_config *config);
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struct regmap *devm_regmap_init_spmi_base(struct spmi_device *dev,
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const struct regmap_config *config);
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struct regmap *devm_regmap_init_spmi_ext(struct spmi_device *dev,
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const struct regmap_config *config);
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struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id,
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void __iomem *regs,
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const struct regmap_config *config);
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/**
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* regmap_init_mmio(): Initialise register map
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*
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* @dev: Device that will be interacted with
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* @regs: Pointer to memory-mapped IO region
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* @config: Configuration for register map
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*
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* The return value will be an ERR_PTR() on error or a valid pointer to
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* a struct regmap.
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*/
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static inline struct regmap *regmap_init_mmio(struct device *dev,
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void __iomem *regs,
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const struct regmap_config *config)
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{
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return regmap_init_mmio_clk(dev, NULL, regs, config);
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}
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/**
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* devm_regmap_init_mmio(): Initialise managed register map
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*
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* @dev: Device that will be interacted with
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* @regs: Pointer to memory-mapped IO region
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* @config: Configuration for register map
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*
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* The return value will be an ERR_PTR() on error or a valid pointer
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* to a struct regmap. The regmap will be automatically freed by the
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* device management code.
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*/
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static inline struct regmap *devm_regmap_init_mmio(struct device *dev,
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void __iomem *regs,
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const struct regmap_config *config)
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{
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return devm_regmap_init_mmio_clk(dev, NULL, regs, config);
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}
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void regmap_exit(struct regmap *map);
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int regmap_reinit_cache(struct regmap *map,
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const struct regmap_config *config);
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struct regmap *dev_get_regmap(struct device *dev, const char *name);
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int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
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int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
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int regmap_raw_write(struct regmap *map, unsigned int reg,
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const void *val, size_t val_len);
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int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
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size_t val_count);
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int regmap_multi_reg_write(struct regmap *map, const struct reg_default *regs,
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int num_regs);
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int regmap_multi_reg_write_bypassed(struct regmap *map,
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const struct reg_default *regs,
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int num_regs);
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int regmap_raw_write_async(struct regmap *map, unsigned int reg,
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const void *val, size_t val_len);
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int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
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int regmap_raw_read(struct regmap *map, unsigned int reg,
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void *val, size_t val_len);
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int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
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size_t val_count);
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int regmap_update_bits(struct regmap *map, unsigned int reg,
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unsigned int mask, unsigned int val);
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int regmap_update_bits_async(struct regmap *map, unsigned int reg,
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unsigned int mask, unsigned int val);
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int regmap_update_bits_check(struct regmap *map, unsigned int reg,
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unsigned int mask, unsigned int val,
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bool *change);
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int regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
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unsigned int mask, unsigned int val,
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bool *change);
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int regmap_get_val_bytes(struct regmap *map);
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int regmap_async_complete(struct regmap *map);
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bool regmap_can_raw_write(struct regmap *map);
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int regcache_sync(struct regmap *map);
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int regcache_sync_region(struct regmap *map, unsigned int min,
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unsigned int max);
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int regcache_drop_region(struct regmap *map, unsigned int min,
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unsigned int max);
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void regcache_cache_only(struct regmap *map, bool enable);
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void regcache_cache_bypass(struct regmap *map, bool enable);
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void regcache_mark_dirty(struct regmap *map);
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bool regmap_check_range_table(struct regmap *map, unsigned int reg,
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const struct regmap_access_table *table);
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int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
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int num_regs);
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int regmap_parse_val(struct regmap *map, const void *buf,
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unsigned int *val);
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static inline bool regmap_reg_in_range(unsigned int reg,
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const struct regmap_range *range)
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{
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return reg >= range->range_min && reg <= range->range_max;
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}
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bool regmap_reg_in_ranges(unsigned int reg,
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const struct regmap_range *ranges,
|
|
unsigned int nranges);
|
|
|
|
/**
|
|
* Description of an register field
|
|
*
|
|
* @reg: Offset of the register within the regmap bank
|
|
* @lsb: lsb of the register field.
|
|
* @reg: 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, \
|
|
}
|
|
|
|
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_read(struct regmap_field *field, unsigned int *val);
|
|
int regmap_field_write(struct regmap_field *field, unsigned int val);
|
|
int regmap_field_update_bits(struct regmap_field *field,
|
|
unsigned int mask, unsigned int val);
|
|
|
|
int regmap_fields_write(struct regmap_field *field, unsigned int id,
|
|
unsigned int val);
|
|
int regmap_fields_read(struct regmap_field *field, unsigned int id,
|
|
unsigned int *val);
|
|
int regmap_fields_update_bits(struct regmap_field *field, unsigned int id,
|
|
unsigned int mask, unsigned int val);
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
struct regmap_irq {
|
|
unsigned int reg_offset;
|
|
unsigned int mask;
|
|
};
|
|
|
|
/**
|
|
* Description of a generic regmap irq_chip. 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.
|
|
*
|
|
* @name: Descriptive name for IRQ controller.
|
|
*
|
|
* @status_base: Base status register address.
|
|
* @mask_base: Base mask register address.
|
|
* @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.
|
|
* @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.
|
|
* @use_ack: Use @ack register even if it is zero.
|
|
* @wake_invert: Inverted wake register: cleared bits are wake enabled.
|
|
* @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.
|
|
*/
|
|
struct regmap_irq_chip {
|
|
const char *name;
|
|
|
|
unsigned int status_base;
|
|
unsigned int mask_base;
|
|
unsigned int ack_base;
|
|
unsigned int wake_base;
|
|
unsigned int irq_reg_stride;
|
|
bool init_ack_masked:1;
|
|
bool mask_invert:1;
|
|
bool use_ack:1;
|
|
bool wake_invert:1;
|
|
bool runtime_pm:1;
|
|
|
|
int num_regs;
|
|
|
|
const struct regmap_irq *irqs;
|
|
int num_irqs;
|
|
};
|
|
|
|
struct regmap_irq_chip_data;
|
|
|
|
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);
|
|
void regmap_del_irq_chip(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_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_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(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_get_val_bytes(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_default *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;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|