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1805 lines
61 KiB
1805 lines
61 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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#ifndef __LINUX_REGMAP_H |
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#define __LINUX_REGMAP_H |
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|
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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 <[email protected]> |
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*/ |
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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/ktime.h> |
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#include <linux/delay.h> |
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#include <linux/err.h> |
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#include <linux/bug.h> |
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#include <linux/lockdep.h> |
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#include <linux/iopoll.h> |
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#include <linux/fwnode.h> |
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struct module; |
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struct clk; |
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struct device; |
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struct device_node; |
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struct i2c_client; |
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struct i3c_device; |
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struct irq_domain; |
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struct slim_device; |
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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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struct snd_ac97; |
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struct sdw_slave; |
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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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* struct reg_default - Default value for a register. |
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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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* We use an array of structs rather than a simple array as many modern devices |
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* have very sparse register maps. |
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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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/** |
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* struct reg_sequence - An individual write from a sequence of writes. |
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* |
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* @reg: Register address. |
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* @def: Register value. |
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* @delay_us: Delay to be applied after the register write in microseconds |
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* |
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* Register/value pairs for sequences of writes with an optional delay in |
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* microseconds to be applied after each write. |
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*/ |
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struct reg_sequence { |
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unsigned int reg; |
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unsigned int def; |
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unsigned int delay_us; |
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}; |
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#define REG_SEQ(_reg, _def, _delay_us) { \ |
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.reg = _reg, \ |
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.def = _def, \ |
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.delay_us = _delay_us, \ |
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} |
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#define REG_SEQ0(_reg, _def) REG_SEQ(_reg, _def, 0) |
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|
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/** |
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* regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs |
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* |
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* @map: Regmap to read from |
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* @addr: Address to poll |
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* @val: Unsigned integer variable to read the value into |
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* @cond: Break condition (usually involving @val) |
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* @sleep_us: Maximum time to sleep between reads in us (0 |
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* tight-loops). Should be less than ~20ms since usleep_range |
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* is used (see Documentation/timers/timers-howto.rst). |
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* @timeout_us: Timeout in us, 0 means never timeout |
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* |
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* Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read |
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* error return value in case of a error read. In the two former cases, |
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* the last read value at @addr is stored in @val. Must not be called |
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* from atomic context if sleep_us or timeout_us are used. |
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* |
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* This is modelled after the readx_poll_timeout macros in linux/iopoll.h. |
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*/ |
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#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \ |
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({ \ |
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int __ret, __tmp; \ |
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__tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \ |
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sleep_us, timeout_us, false, (map), (addr), &(val)); \ |
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__ret ?: __tmp; \ |
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}) |
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/** |
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* regmap_read_poll_timeout_atomic - Poll until a condition is met or a timeout occurs |
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* |
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* @map: Regmap to read from |
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* @addr: Address to poll |
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* @val: Unsigned integer variable to read the value into |
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* @cond: Break condition (usually involving @val) |
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* @delay_us: Time to udelay between reads in us (0 tight-loops). |
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* Should be less than ~10us since udelay is used |
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* (see Documentation/timers/timers-howto.rst). |
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* @timeout_us: Timeout in us, 0 means never timeout |
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* |
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* Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read |
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* error return value in case of a error read. In the two former cases, |
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* the last read value at @addr is stored in @val. |
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* |
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* This is modelled after the readx_poll_timeout_atomic macros in linux/iopoll.h. |
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* |
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* Note: In general regmap cannot be used in atomic context. If you want to use |
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* this macro then first setup your regmap for atomic use (flat or no cache |
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* and MMIO regmap). |
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*/ |
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#define regmap_read_poll_timeout_atomic(map, addr, val, cond, delay_us, timeout_us) \ |
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({ \ |
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u64 __timeout_us = (timeout_us); \ |
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unsigned long __delay_us = (delay_us); \ |
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ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ |
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int __ret; \ |
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for (;;) { \ |
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__ret = regmap_read((map), (addr), &(val)); \ |
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if (__ret) \ |
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break; \ |
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if (cond) \ |
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break; \ |
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if ((__timeout_us) && \ |
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ktime_compare(ktime_get(), __timeout) > 0) { \ |
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__ret = regmap_read((map), (addr), &(val)); \ |
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break; \ |
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} \ |
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if (__delay_us) \ |
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udelay(__delay_us); \ |
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} \ |
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__ret ?: ((cond) ? 0 : -ETIMEDOUT); \ |
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}) |
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/** |
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* regmap_field_read_poll_timeout - Poll until a condition is met or timeout |
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* |
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* @field: Regmap field to read from |
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* @val: Unsigned integer variable to read the value into |
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* @cond: Break condition (usually involving @val) |
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* @sleep_us: Maximum time to sleep between reads in us (0 |
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* tight-loops). Should be less than ~20ms since usleep_range |
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* is used (see Documentation/timers/timers-howto.rst). |
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* @timeout_us: Timeout in us, 0 means never timeout |
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* |
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* Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read |
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* error return value in case of a error read. In the two former cases, |
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* the last read value at @addr is stored in @val. Must not be called |
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* from atomic context if sleep_us or timeout_us are used. |
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* |
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* This is modelled after the readx_poll_timeout macros in linux/iopoll.h. |
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*/ |
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#define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \ |
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({ \ |
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int __ret, __tmp; \ |
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__tmp = read_poll_timeout(regmap_field_read, __ret, __ret || (cond), \ |
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sleep_us, timeout_us, false, (field), &(val)); \ |
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__ret ?: __tmp; \ |
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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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* struct regmap_range - 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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* struct regmap_access_table - A table of register ranges for access checks |
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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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* 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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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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* struct regmap_config - 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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* @writeable_noinc_reg: Optional callback returning true if the register |
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* supports multiple write operations without incrementing |
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* the register number. If this field is NULL but |
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* wr_noinc_table (see below) is not, the check is |
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* performed on such table (a register is no increment |
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* writeable if it belongs to one of the ranges specified |
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* by wr_noinc_table). |
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* @readable_noinc_reg: Optional callback returning true if the register |
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* supports multiple read operations without incrementing |
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* the register number. If this field is NULL but |
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* rd_noinc_table (see below) is not, the check is |
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* performed on such table (a register is no increment |
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* readable if it belongs to one of the ranges specified |
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* by rd_noinc_table). |
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* @disable_locking: This regmap is either protected by external means or |
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* is guaranteed not to be accessed from multiple threads. |
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* Don't use any locking mechanisms. |
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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 address. |
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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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* @wr_noinc_table: As above, for no increment writeable registers. |
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* @rd_noinc_table: As above, for no increment readable 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 bytes 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 bytes 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 and zero_flag_mask is not set the regmap_bus default |
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* masks are used. |
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* @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even |
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* if they are both empty. |
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* @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers. |
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* This can avoid load on devices which don't require strict |
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* orderings, but drivers should carefully add any explicit |
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* memory barriers when they may require them. |
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* @use_single_read: If set, converts the bulk read operation into a series of |
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* single read operations. This is useful for a device that |
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* does not support bulk read. |
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* @use_single_write: If set, converts the bulk write operation into a series of |
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* single write operations. This is useful for a device that |
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* does not support bulk 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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* @use_hwlock: Indicate if a hardware spinlock should be used. |
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* @hwlock_id: Specify the hardware spinlock id. |
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* @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE, |
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* HWLOCK_IRQ or 0. |
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* @can_sleep: Optional, specifies whether regmap operations can sleep. |
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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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bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg); |
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bool (*readable_noinc_reg)(struct device *dev, unsigned int reg); |
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bool disable_locking; |
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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 regmap_access_table *wr_noinc_table; |
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const struct regmap_access_table *rd_noinc_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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unsigned long read_flag_mask; |
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unsigned long write_flag_mask; |
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bool zero_flag_mask; |
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bool use_single_read; |
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bool use_single_write; |
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bool use_relaxed_mmio; |
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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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bool use_hwlock; |
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unsigned int hwlock_id; |
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unsigned int hwlock_mode; |
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bool can_sleep; |
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}; |
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/** |
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* struct regmap_range_cfg - Configuration for indirectly accessed or paged |
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* 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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* @selector_reg: Register with selector field. |
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* @selector_mask: Bit mask for selector value. |
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* @selector_shift: Bit shift 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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* 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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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 int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, |
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unsigned int mask, 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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/** |
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* struct regmap_bus - Description of a hardware bus for the register map |
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* 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 |
|
* 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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* @reg_write: Write a single register value to the given register address. This |
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* write operation has to complete when returning from the function. |
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* @reg_update_bits: Update bits operation to be used against volatile |
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* registers, intended for devices supporting some mechanism |
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* for setting clearing bits without having to |
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* read/modify/write. |
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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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* @reg_read: Read a single register value from a given register address. |
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* @free_context: Free context. |
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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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* @max_raw_read: Max raw read size that can be used on the bus. |
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* @max_raw_write: Max raw write size that can be used on the bus. |
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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_reg_update_bits reg_update_bits; |
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regmap_hw_read read; |
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regmap_hw_reg_read reg_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; |
|
}; |
|
|
|
/* |
|
* __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_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_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_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_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, |
|
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, |
|
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_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 - 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, ... |
|
* @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_writeonly: Base mask register is write only. |
|
* @unmask_base: Base unmask register address. for chips who have |
|
* separate mask and unmask registers |
|
* @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. |
|
* @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. |
|
* @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. |
|
* @type_in_mask: Use the mask registers for controlling irq type. For |
|
* interrupts defining type_rising/falling_mask use mask_base |
|
* for edge configuration and never update bits in type_base. |
|
* @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. |
|
* @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. |
|
* @type_reg_stride: Stride to use for chips where type registers are not |
|
* contiguous. |
|
* @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(). |
|
* @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 irq_reg_stride; |
|
bool mask_writeonly:1; |
|
bool init_ack_masked:1; |
|
bool mask_invert:1; |
|
bool use_ack:1; |
|
bool ack_invert:1; |
|
bool clear_ack:1; |
|
bool wake_invert:1; |
|
bool runtime_pm:1; |
|
bool type_invert:1; |
|
bool type_in_mask:1; |
|
bool clear_on_unmask:1; |
|
|
|
int num_regs; |
|
|
|
const struct regmap_irq *irqs; |
|
int num_irqs; |
|
|
|
int num_type_reg; |
|
unsigned int type_reg_stride; |
|
|
|
int (*handle_pre_irq)(void *irq_drv_data); |
|
int (*handle_post_irq)(void *irq_drv_data); |
|
void *irq_drv_data; |
|
}; |
|
|
|
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); |
|
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_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
|
|
|