From 8019ff6cfc0440415fcfb6352c58c3951e6ab053 Mon Sep 17 00:00:00 2001 From: Nariman Poushin Date: Thu, 16 Jul 2015 16:36:21 +0100 Subject: regmap: Use reg_sequence for multi_reg_write / register_patch Separate the functionality using sequences of register writes from the functions that take register defaults. This change renames the arguments in order to support the extension of reg_sequence to take an optional delay to be applied after any given register in a sequence is written. This avoids adding an int to all register defaults, which could substantially increase memory usage for regmaps with large default tables. This also updates all the clients of multi_reg_write/register_patch. Signed-off-by: Nariman Poushin Signed-off-by: Mark Brown --- include/linux/regmap.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'include/linux/regmap.h') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 59c55ea0f0b5..c9ef2ec69142 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -50,6 +50,17 @@ struct reg_default { unsigned int def; }; +/** + * Register/value pairs for sequences of writes + * + * @reg: Register address. + * @def: Register value. + */ +struct reg_sequence { + unsigned int reg; + unsigned int def; +}; + #ifdef CONFIG_REGMAP enum regmap_endian { @@ -410,10 +421,10 @@ int regmap_raw_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_default *regs, +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_default *regs, + 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); @@ -450,7 +461,7 @@ 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_default *regs, +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); -- cgit v1.2.3 From 2de9d6006c190bb0f706e8404de94cd94293801f Mon Sep 17 00:00:00 2001 From: Nariman Poushin Date: Thu, 16 Jul 2015 16:36:22 +0100 Subject: regmap: Apply optional delay in multi_reg_write/register_patch Add an optional delay_us field in reg_sequence to allow the client to specify a delay (in microseconds) to be applied after any given write in a sequence of writes. We treat a delay in a sequence the same way we treat a page change as they are logically similar in that you can coalesce all write before a delay (in the same way you can coalesce all writes before a page change is needed) Signed-off-by: Nariman Poushin Signed-off-by: Mark Brown --- drivers/base/regmap/regmap.c | 54 +++++++++++++++++++++++++++++++++++++++----- include/linux/regmap.h | 5 +++- 2 files changed, 52 insertions(+), 7 deletions(-) (limited to 'include/linux/regmap.h') diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 2cbb4502747d..b3a5aa5cd580 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -18,6 +18,7 @@ #include #include #include +#include #define CREATE_TRACE_POINTS #include "trace.h" @@ -1807,10 +1808,12 @@ static int _regmap_range_multi_paged_reg_write(struct regmap *map, int i, n; struct reg_sequence *base; unsigned int this_page = 0; + unsigned int page_change = 0; /* * the set of registers are not neccessarily in order, but * since the order of write must be preserved this algorithm - * chops the set each time the page changes + * chops the set each time the page changes. This also applies + * if there is a delay required at any point in the sequence. */ base = regs; for (i = 0, n = 0; i < num_regs; i++, n++) { @@ -1826,16 +1829,48 @@ static int _regmap_range_multi_paged_reg_write(struct regmap *map, this_page = win_page; if (win_page != this_page) { this_page = win_page; + page_change = 1; + } + } + + /* If we have both a page change and a delay make sure to + * write the regs and apply the delay before we change the + * page. + */ + + if (page_change || regs[i].delay_us) { + + /* For situations where the first write requires + * a delay we need to make sure we don't call + * raw_multi_reg_write with n=0 + * This can't occur with page breaks as we + * never write on the first iteration + */ + if (regs[i].delay_us && i == 0) + n = 1; + ret = _regmap_raw_multi_reg_write(map, base, n); if (ret != 0) return ret; + + if (regs[i].delay_us) + udelay(regs[i].delay_us); + base += n; n = 0; - } - ret = _regmap_select_page(map, &base[n].reg, range, 1); - if (ret != 0) - return ret; + + if (page_change) { + ret = _regmap_select_page(map, + &base[n].reg, + range, 1); + if (ret != 0) + return ret; + + page_change = 0; + } + } + } if (n > 0) return _regmap_raw_multi_reg_write(map, base, n); @@ -1854,6 +1889,9 @@ static int _regmap_multi_reg_write(struct regmap *map, ret = _regmap_write(map, regs[i].reg, regs[i].def); if (ret != 0) return ret; + + if (regs[i].delay_us) + udelay(regs[i].delay_us); } return 0; } @@ -1893,8 +1931,12 @@ static int _regmap_multi_reg_write(struct regmap *map, for (i = 0; i < num_regs; i++) { unsigned int reg = regs[i].reg; struct regmap_range_node *range; + + /* Coalesce all the writes between a page break or a delay + * in a sequence + */ range = _regmap_range_lookup(map, reg); - if (range) { + if (range || regs[i].delay_us) { size_t len = sizeof(struct reg_sequence)*num_regs; struct reg_sequence *base = kmemdup(regs, len, GFP_KERNEL); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index c9ef2ec69142..5a7cf2136c81 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -51,14 +51,17 @@ struct reg_default { }; /** - * Register/value pairs for sequences of writes + * Register/value pairs for sequences of writes with an optional delay in + * microseconds to be applied after each write. * * @reg: Register address. * @def: Register value. + * @delay_us: Delay to be applied after the register write in microseconds */ struct reg_sequence { unsigned int reg; unsigned int def; + unsigned int delay_us; }; #ifdef CONFIG_REGMAP -- cgit v1.2.3 From 3cfe7a74d42b7e3644f8b2b26aa20146d4f90f0f Mon Sep 17 00:00:00 2001 From: Nicolas Boichat Date: Wed, 8 Jul 2015 14:30:18 +0800 Subject: regmap: Use different lockdep class for each regmap init call Lockdep validator complains about recursive locking and deadlock when two different regmap instances are called in a nested order. That happens anytime a regmap read/write call needs to access another regmap. This is because, for performance reason, lockdep groups all locks initialized by the same mutex_init() in the same lock class. Therefore all regmap mutexes are in the same lock class, leading to lockdep "nested locking" warnings if a regmap accesses another regmap. In general, it is impossible to establish in advance the hierarchy of regmaps, so we make sure that each regmap init call initializes its own static lock_class_key. This is done by wrapping all regmap_init calls into macros. This also allows us to give meaningful names to the lock_class_key. For example, in rt5677 case, we have in /proc/lockdep_chains: irq_context: 0 [ffffffc0018d2198] &dev->mutex [ffffffc0018d2198] &dev->mutex [ffffffc001bd7f60] rt5677:5104:(&rt5677_regmap)->_lock [ffffffc001bd7f58] rt5677:5096:(&rt5677_regmap_physical)->_lock [ffffffc001b95448] &(&base->lock)->rlock The above would have resulted in a lockdep recursive warning previously. This is not the case anymore as the lockdep validator now clearly identifies the 2 regmaps as separate. Signed-off-by: Nicolas Boichat Signed-off-by: Mark Brown --- drivers/base/regmap/regmap-ac97.c | 22 +++-- drivers/base/regmap/regmap-i2c.c | 22 +++-- drivers/base/regmap/regmap-mmio.c | 27 ++++-- drivers/base/regmap/regmap-spi.c | 22 +++-- drivers/base/regmap/regmap-spmi.c | 44 +++++---- drivers/base/regmap/regmap.c | 31 +++--- include/linux/regmap.h | 192 ++++++++++++++++++++++++++++---------- 7 files changed, 250 insertions(+), 110 deletions(-) (limited to 'include/linux/regmap.h') diff --git a/drivers/base/regmap/regmap-ac97.c b/drivers/base/regmap/regmap-ac97.c index 8d304e2a943d..aa631be8b821 100644 --- a/drivers/base/regmap/regmap-ac97.c +++ b/drivers/base/regmap/regmap-ac97.c @@ -87,12 +87,15 @@ static const struct regmap_bus ac97_regmap_bus = { * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -struct regmap *regmap_init_ac97(struct snd_ac97 *ac97, - const struct regmap_config *config) +struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config); + return __regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(regmap_init_ac97); +EXPORT_SYMBOL_GPL(__regmap_init_ac97); /** * devm_regmap_init_ac97(): Initialise AC'97 register map @@ -104,11 +107,14 @@ EXPORT_SYMBOL_GPL(regmap_init_ac97); * to a struct regmap. The regmap will be automatically freed by the * device management code. */ -struct regmap *devm_regmap_init_ac97(struct snd_ac97 *ac97, - const struct regmap_config *config) +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) { - return devm_regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config); + return __devm_regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(devm_regmap_init_ac97); +EXPORT_SYMBOL_GPL(__devm_regmap_init_ac97); MODULE_LICENSE("GPL v2"); diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c index 4b76e33110a2..3163b22e2baf 100644 --- a/drivers/base/regmap/regmap-i2c.c +++ b/drivers/base/regmap/regmap-i2c.c @@ -242,17 +242,20 @@ static const struct regmap_bus *regmap_get_i2c_bus(struct i2c_client *i2c, * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -struct regmap *regmap_init_i2c(struct i2c_client *i2c, - const struct regmap_config *config) +struct regmap *__regmap_init_i2c(struct i2c_client *i2c, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { const struct regmap_bus *bus = regmap_get_i2c_bus(i2c, config); if (IS_ERR(bus)) return ERR_CAST(bus); - return regmap_init(&i2c->dev, bus, &i2c->dev, config); + return __regmap_init(&i2c->dev, bus, &i2c->dev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(regmap_init_i2c); +EXPORT_SYMBOL_GPL(__regmap_init_i2c); /** * devm_regmap_init_i2c(): Initialise managed register map @@ -264,16 +267,19 @@ EXPORT_SYMBOL_GPL(regmap_init_i2c); * to a struct regmap. The regmap will be automatically freed by the * device management code. */ -struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, - const struct regmap_config *config) +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) { const struct regmap_bus *bus = regmap_get_i2c_bus(i2c, config); if (IS_ERR(bus)) return ERR_CAST(bus); - return devm_regmap_init(&i2c->dev, bus, &i2c->dev, config); + return __devm_regmap_init(&i2c->dev, bus, &i2c->dev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(devm_regmap_init_i2c); +EXPORT_SYMBOL_GPL(__devm_regmap_init_i2c); MODULE_LICENSE("GPL"); diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c index 04a329a377e9..a1b2b270e4bc 100644 --- a/drivers/base/regmap/regmap-mmio.c +++ b/drivers/base/regmap/regmap-mmio.c @@ -307,9 +307,11 @@ err_free: * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id, - void __iomem *regs, - const struct regmap_config *config) +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_mmio_context *ctx; @@ -317,9 +319,10 @@ struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id, if (IS_ERR(ctx)) return ERR_CAST(ctx); - return regmap_init(dev, ®map_mmio, ctx, config); + return __regmap_init(dev, ®map_mmio, ctx, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(regmap_init_mmio_clk); +EXPORT_SYMBOL_GPL(__regmap_init_mmio_clk); /** * devm_regmap_init_mmio_clk(): Initialise managed register map with clock @@ -333,9 +336,12 @@ EXPORT_SYMBOL_GPL(regmap_init_mmio_clk); * to a struct regmap. The regmap will be automatically freed by the * device management code. */ -struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, - void __iomem *regs, - const struct regmap_config *config) +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_mmio_context *ctx; @@ -343,8 +349,9 @@ struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, if (IS_ERR(ctx)) return ERR_CAST(ctx); - return devm_regmap_init(dev, ®map_mmio, ctx, config); + return __devm_regmap_init(dev, ®map_mmio, ctx, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(devm_regmap_init_mmio_clk); +EXPORT_SYMBOL_GPL(__devm_regmap_init_mmio_clk); MODULE_LICENSE("GPL v2"); diff --git a/drivers/base/regmap/regmap-spi.c b/drivers/base/regmap/regmap-spi.c index 53d1148e80a0..4c7850d660d1 100644 --- a/drivers/base/regmap/regmap-spi.c +++ b/drivers/base/regmap/regmap-spi.c @@ -122,12 +122,15 @@ static struct regmap_bus regmap_spi = { * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -struct regmap *regmap_init_spi(struct spi_device *spi, - const struct regmap_config *config) +struct regmap *__regmap_init_spi(struct spi_device *spi, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return regmap_init(&spi->dev, ®map_spi, &spi->dev, config); + return __regmap_init(&spi->dev, ®map_spi, &spi->dev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(regmap_init_spi); +EXPORT_SYMBOL_GPL(__regmap_init_spi); /** * devm_regmap_init_spi(): Initialise register map @@ -139,11 +142,14 @@ EXPORT_SYMBOL_GPL(regmap_init_spi); * to a struct regmap. The map will be automatically freed by the * device management code. */ -struct regmap *devm_regmap_init_spi(struct spi_device *spi, - const struct regmap_config *config) +struct regmap *__devm_regmap_init_spi(struct spi_device *spi, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return devm_regmap_init(&spi->dev, ®map_spi, &spi->dev, config); + return __devm_regmap_init(&spi->dev, ®map_spi, &spi->dev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(devm_regmap_init_spi); +EXPORT_SYMBOL_GPL(__devm_regmap_init_spi); MODULE_LICENSE("GPL"); diff --git a/drivers/base/regmap/regmap-spmi.c b/drivers/base/regmap/regmap-spmi.c index d7026dc33388..7f50f5862d39 100644 --- a/drivers/base/regmap/regmap-spmi.c +++ b/drivers/base/regmap/regmap-spmi.c @@ -99,12 +99,15 @@ static struct regmap_bus regmap_spmi_base = { * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -struct regmap *regmap_init_spmi_base(struct spmi_device *sdev, - const struct regmap_config *config) +struct regmap *__regmap_init_spmi_base(struct spmi_device *sdev, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return regmap_init(&sdev->dev, ®map_spmi_base, sdev, config); + return __regmap_init(&sdev->dev, ®map_spmi_base, sdev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(regmap_init_spmi_base); +EXPORT_SYMBOL_GPL(__regmap_init_spmi_base); /** * devm_regmap_init_spmi_base(): Create managed regmap for Base register space @@ -115,12 +118,15 @@ EXPORT_SYMBOL_GPL(regmap_init_spmi_base); * to a struct regmap. The regmap will be automatically freed by the * device management code. */ -struct regmap *devm_regmap_init_spmi_base(struct spmi_device *sdev, - const struct regmap_config *config) +struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *sdev, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return devm_regmap_init(&sdev->dev, ®map_spmi_base, sdev, config); + return __devm_regmap_init(&sdev->dev, ®map_spmi_base, sdev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(devm_regmap_init_spmi_base); +EXPORT_SYMBOL_GPL(__devm_regmap_init_spmi_base); static int regmap_spmi_ext_read(void *context, const void *reg, size_t reg_size, @@ -230,12 +236,15 @@ static struct regmap_bus regmap_spmi_ext = { * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -struct regmap *regmap_init_spmi_ext(struct spmi_device *sdev, - const struct regmap_config *config) +struct regmap *__regmap_init_spmi_ext(struct spmi_device *sdev, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return regmap_init(&sdev->dev, ®map_spmi_ext, sdev, config); + return __regmap_init(&sdev->dev, ®map_spmi_ext, sdev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(regmap_init_spmi_ext); +EXPORT_SYMBOL_GPL(__regmap_init_spmi_ext); /** * devm_regmap_init_spmi_ext(): Create managed regmap for Ext register space @@ -246,11 +255,14 @@ EXPORT_SYMBOL_GPL(regmap_init_spmi_ext); * to a struct regmap. The regmap will be automatically freed by the * device management code. */ -struct regmap *devm_regmap_init_spmi_ext(struct spmi_device *sdev, - const struct regmap_config *config) +struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *sdev, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) { - return devm_regmap_init(&sdev->dev, ®map_spmi_ext, sdev, config); + return __devm_regmap_init(&sdev->dev, ®map_spmi_ext, sdev, config, + lock_key, lock_name); } -EXPORT_SYMBOL_GPL(devm_regmap_init_spmi_ext); +EXPORT_SYMBOL_GPL(__devm_regmap_init_spmi_ext); MODULE_LICENSE("GPL"); diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 7111d04f2621..b9fddccd6e06 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -527,10 +527,12 @@ EXPORT_SYMBOL_GPL(regmap_get_val_endian); * a struct regmap. This function should generally not be called * directly, it should be called by bus-specific init functions. */ -struct regmap *regmap_init(struct device *dev, - const struct regmap_bus *bus, - void *bus_context, - const struct regmap_config *config) +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 *map; int ret = -EINVAL; @@ -556,10 +558,14 @@ struct regmap *regmap_init(struct device *dev, spin_lock_init(&map->spinlock); map->lock = regmap_lock_spinlock; map->unlock = regmap_unlock_spinlock; + lockdep_set_class_and_name(&map->spinlock, + lock_key, lock_name); } else { mutex_init(&map->mutex); map->lock = regmap_lock_mutex; map->unlock = regmap_unlock_mutex; + lockdep_set_class_and_name(&map->mutex, + lock_key, lock_name); } map->lock_arg = map; } @@ -899,7 +905,7 @@ err_map: err: return ERR_PTR(ret); } -EXPORT_SYMBOL_GPL(regmap_init); +EXPORT_SYMBOL_GPL(__regmap_init); static void devm_regmap_release(struct device *dev, void *res) { @@ -919,10 +925,12 @@ static void devm_regmap_release(struct device *dev, void *res) * directly, it should be called by bus-specific init functions. The * map will be automatically freed by the device management code. */ -struct regmap *devm_regmap_init(struct device *dev, - const struct regmap_bus *bus, - void *bus_context, - const struct regmap_config *config) +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 **ptr, *regmap; @@ -930,7 +938,8 @@ struct regmap *devm_regmap_init(struct device *dev, if (!ptr) return ERR_PTR(-ENOMEM); - regmap = regmap_init(dev, bus, bus_context, config); + regmap = __regmap_init(dev, bus, bus_context, config, + lock_key, lock_name); if (!IS_ERR(regmap)) { *ptr = regmap; devres_add(dev, ptr); @@ -940,7 +949,7 @@ struct regmap *devm_regmap_init(struct device *dev, return regmap; } -EXPORT_SYMBOL_GPL(devm_regmap_init); +EXPORT_SYMBOL_GPL(__devm_regmap_init); static void regmap_field_init(struct regmap_field *rm_field, struct regmap *regmap, struct reg_field reg_field) diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 59c55ea0f0b5..5d7027286032 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -17,6 +17,7 @@ #include #include #include +#include struct module; struct device; @@ -324,46 +325,147 @@ struct regmap_bus { enum regmap_endian val_format_endian_default; }; -struct regmap *regmap_init(struct device *dev, - const struct regmap_bus *bus, - void *bus_context, - const struct regmap_config *config); -int regmap_attach_dev(struct device *dev, struct regmap *map, - const struct regmap_config *config); -struct regmap *regmap_init_i2c(struct i2c_client *i2c, - const struct regmap_config *config); -struct regmap *regmap_init_spi(struct spi_device *dev, - const struct regmap_config *config); -struct regmap *regmap_init_spmi_base(struct spmi_device *dev, - const struct regmap_config *config); -struct regmap *regmap_init_spmi_ext(struct spmi_device *dev, - const struct regmap_config *config); -struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id, - void __iomem *regs, - const struct regmap_config *config); -struct regmap *regmap_init_ac97(struct snd_ac97 *ac97, - const struct regmap_config *config); - -struct regmap *devm_regmap_init(struct device *dev, - const struct regmap_bus *bus, - void *bus_context, - const struct regmap_config *config); -struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, - const struct regmap_config *config); -struct regmap *devm_regmap_init_spi(struct spi_device *dev, - const struct regmap_config *config); -struct regmap *devm_regmap_init_spmi_base(struct spmi_device *dev, - const struct regmap_config *config); -struct regmap *devm_regmap_init_spmi_ext(struct spmi_device *dev, - const struct regmap_config *config); -struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, - void __iomem *regs, - const struct regmap_config *config); -struct regmap *devm_regmap_init_ac97(struct snd_ac97 *ac97, - const struct regmap_config *config); +/* + * __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_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_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 *__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_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_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); +/* + * 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 + +#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); +#define regmap_init_i2c(i2c, config) \ + __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \ + i2c, config) +#define regmap_init_spi(dev, config) \ + __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ + dev, config) +#define regmap_init_spmi_base(dev, config) \ + __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \ + dev, config) +#define regmap_init_spmi_ext(dev, config) \ + __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \ + dev, config) +#define regmap_init_mmio_clk(dev, clk_id, regs, config) \ + __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \ + dev, clk_id, regs, config) +#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); +#define devm_regmap_init(dev, bus, bus_context, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init, #config, \ + dev, bus, bus_context, config) +#define devm_regmap_init_i2c(i2c, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \ + i2c, config) +#define devm_regmap_init_spi(dev, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ + dev, config) +#define devm_regmap_init_spmi_base(dev, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \ + dev, config) +#define devm_regmap_init_spmi_ext(dev, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \ + dev, config) +#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) +#define devm_regmap_init_ac97(ac97, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ + ac97, config) + /** * regmap_init_mmio(): Initialise register map * @@ -374,12 +476,8 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); * The return value will be an ERR_PTR() on error or a valid pointer to * a struct regmap. */ -static inline struct regmap *regmap_init_mmio(struct device *dev, - void __iomem *regs, - const struct regmap_config *config) -{ - return regmap_init_mmio_clk(dev, NULL, regs, config); -} +#define regmap_init_mmio(dev, regs, config) \ + regmap_init_mmio_clk(dev, NULL, regs, config) /** * devm_regmap_init_mmio(): Initialise managed register map @@ -392,12 +490,8 @@ static inline struct regmap *regmap_init_mmio(struct device *dev, * to a struct regmap. The regmap will be automatically freed by the * device management code. */ -static inline struct regmap *devm_regmap_init_mmio(struct device *dev, - void __iomem *regs, - const struct regmap_config *config) -{ - return devm_regmap_init_mmio_clk(dev, NULL, regs, config); -} +#define devm_regmap_init_mmio(dev, regs, config) \ + devm_regmap_init_mmio_clk(dev, NULL, regs, config) void regmap_exit(struct regmap *map); int regmap_reinit_cache(struct regmap *map, -- cgit v1.2.3 From 1ed8111443ae8caa455e7107031da36d1a6d351a Mon Sep 17 00:00:00 2001 From: Nicolas Boichat Date: Tue, 11 Aug 2015 18:04:21 +0800 Subject: regmap: Move documentation to regmap.h Init functions defined in regmap*.c files are now prefixed with __, take lockdep key and class parameters, and should not be called directly: move the documentation to regmap.h, where the macros are defined. Signed-off-by: Nicolas Boichat Signed-off-by: Mark Brown --- drivers/base/regmap/regmap-ac97.c | 19 ----- drivers/base/regmap/regmap-i2c.c | 19 ----- drivers/base/regmap/regmap-mmio.c | 23 ----- drivers/base/regmap/regmap-spi.c | 19 ----- drivers/base/regmap/regmap-spmi.c | 34 -------- drivers/base/regmap/regmap.c | 25 ------ include/linux/regmap.h | 173 +++++++++++++++++++++++++++++++++++--- 7 files changed, 162 insertions(+), 150 deletions(-) (limited to 'include/linux/regmap.h') diff --git a/drivers/base/regmap/regmap-ac97.c b/drivers/base/regmap/regmap-ac97.c index aa631be8b821..c03ebfd4c731 100644 --- a/drivers/base/regmap/regmap-ac97.c +++ b/drivers/base/regmap/regmap-ac97.c @@ -78,15 +78,6 @@ static const struct regmap_bus ac97_regmap_bus = { .reg_read = regmap_ac97_reg_read, }; -/** - * 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. - */ struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, const struct regmap_config *config, struct lock_class_key *lock_key, @@ -97,16 +88,6 @@ struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, } EXPORT_SYMBOL_GPL(__regmap_init_ac97); -/** - * 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. - */ struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, const struct regmap_config *config, struct lock_class_key *lock_key, diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c index 3163b22e2baf..7007d6ea333c 100644 --- a/drivers/base/regmap/regmap-i2c.c +++ b/drivers/base/regmap/regmap-i2c.c @@ -233,15 +233,6 @@ static const struct regmap_bus *regmap_get_i2c_bus(struct i2c_client *i2c, return ERR_PTR(-ENOTSUPP); } -/** - * 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. - */ struct regmap *__regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config, struct lock_class_key *lock_key, @@ -257,16 +248,6 @@ struct regmap *__regmap_init_i2c(struct i2c_client *i2c, } EXPORT_SYMBOL_GPL(__regmap_init_i2c); -/** - * 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. - */ struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config, struct lock_class_key *lock_key, diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c index a1b2b270e4bc..426a57e41ac7 100644 --- a/drivers/base/regmap/regmap-mmio.c +++ b/drivers/base/regmap/regmap-mmio.c @@ -296,17 +296,6 @@ err_free: return ERR_PTR(ret); } -/** - * 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. - */ struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, void __iomem *regs, const struct regmap_config *config, @@ -324,18 +313,6 @@ struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, } EXPORT_SYMBOL_GPL(__regmap_init_mmio_clk); -/** - * 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. - */ struct regmap *__devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, void __iomem *regs, diff --git a/drivers/base/regmap/regmap-spi.c b/drivers/base/regmap/regmap-spi.c index 4c7850d660d1..edd9a839d004 100644 --- a/drivers/base/regmap/regmap-spi.c +++ b/drivers/base/regmap/regmap-spi.c @@ -113,15 +113,6 @@ static struct regmap_bus regmap_spi = { .val_format_endian_default = REGMAP_ENDIAN_BIG, }; -/** - * regmap_init_spi(): Initialise register map - * - * @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. - */ struct regmap *__regmap_init_spi(struct spi_device *spi, const struct regmap_config *config, struct lock_class_key *lock_key, @@ -132,16 +123,6 @@ struct regmap *__regmap_init_spi(struct spi_device *spi, } EXPORT_SYMBOL_GPL(__regmap_init_spi); -/** - * devm_regmap_init_spi(): Initialise register map - * - * @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. - */ struct regmap *__devm_regmap_init_spi(struct spi_device *spi, const struct regmap_config *config, struct lock_class_key *lock_key, diff --git a/drivers/base/regmap/regmap-spmi.c b/drivers/base/regmap/regmap-spmi.c index 7f50f5862d39..7e58f6560399 100644 --- a/drivers/base/regmap/regmap-spmi.c +++ b/drivers/base/regmap/regmap-spmi.c @@ -91,14 +91,6 @@ static struct regmap_bus regmap_spmi_base = { .val_format_endian_default = REGMAP_ENDIAN_NATIVE, }; -/** - * regmap_init_spmi_base(): Create regmap for the Base register space - * @sdev: 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. - */ struct regmap *__regmap_init_spmi_base(struct spmi_device *sdev, const struct regmap_config *config, struct lock_class_key *lock_key, @@ -109,15 +101,6 @@ struct regmap *__regmap_init_spmi_base(struct spmi_device *sdev, } EXPORT_SYMBOL_GPL(__regmap_init_spmi_base); -/** - * devm_regmap_init_spmi_base(): Create managed regmap for Base register space - * @sdev: 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. - */ struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *sdev, const struct regmap_config *config, struct lock_class_key *lock_key, @@ -228,14 +211,6 @@ static struct regmap_bus regmap_spmi_ext = { .val_format_endian_default = REGMAP_ENDIAN_NATIVE, }; -/** - * regmap_init_spmi_ext(): Create regmap for Ext register space - * @sdev: 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. - */ struct regmap *__regmap_init_spmi_ext(struct spmi_device *sdev, const struct regmap_config *config, struct lock_class_key *lock_key, @@ -246,15 +221,6 @@ struct regmap *__regmap_init_spmi_ext(struct spmi_device *sdev, } EXPORT_SYMBOL_GPL(__regmap_init_spmi_ext); -/** - * devm_regmap_init_spmi_ext(): Create managed regmap for Ext register space - * @sdev: 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. - */ struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *sdev, const struct regmap_config *config, struct lock_class_key *lock_key, diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index b9fddccd6e06..53ba9d9e17d1 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -515,18 +515,6 @@ enum regmap_endian regmap_get_val_endian(struct device *dev, } EXPORT_SYMBOL_GPL(regmap_get_val_endian); -/** - * 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. - */ struct regmap *__regmap_init(struct device *dev, const struct regmap_bus *bus, void *bus_context, @@ -912,19 +900,6 @@ static void devm_regmap_release(struct device *dev, void *res) regmap_exit(*(struct regmap **)res); } -/** - * 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. - */ struct regmap *__devm_regmap_init(struct device *dev, const struct regmap_bus *bus, void *bus_context, diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 5d7027286032..ee032eca630d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -419,65 +419,202 @@ struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, #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_spi(): Initialise register map + * + * @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(dev, config) \ __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ dev, config) + +/** + * regmap_init_spmi_base(): Create regmap for the Base register space + * @sdev: 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 + * @sdev: 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_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); +/** + * 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_spi(): Initialise register map + * + * @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(dev, config) \ __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ dev, config) + +/** + * devm_regmap_init_spmi_base(): Create managed regmap for Base register space + * @sdev: 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 + * @sdev: 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) -#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) -#define devm_regmap_init_ac97(ac97, config) \ - __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ - ac97, config) /** - * regmap_init_mmio(): Initialise register map + * 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 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 regmap_init_mmio(dev, regs, config) \ - regmap_init_mmio_clk(dev, NULL, regs, config) +#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 @@ -493,6 +630,20 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); #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) + void regmap_exit(struct regmap *map); int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config); -- cgit v1.2.3