user/sven/linux.git/include/linux/regulator/consumer.h, branch v6.1.4

regulator: Add devm helpers for get and enable

2022-08-18T11:51:48Z

A few regulator consumer drivers seem to be just getting a regulator, enabling it and registering a devm-action to disable the regulator at the driver detach and then forget about it. We can simplify this a bit by adding a devm-helper for this pattern. Add devm_regulator_get_enable() and devm_regulator_get_enable_optional() Signed-off-by: Matti Vaittinen Link: https://lore.kernel.org/r/ed7b8841193bb9749d426f3cb3b199c9460794cd.1660292316.git.mazziesaccount@gmail.com Signed-off-by: Mark Brown

regulator: core: Allow drivers to define their init data as const

2022-07-27T12:47:30Z

Drivers tend to want to define the names of their regulators somewhere in their source file as "static const". This means, inevitable, that every driver out there open codes something like this: static const char * const supply_names[] = { "vcc", "vccl", }; static int get_regulators(struct my_data *data) { int i; data->supplies = devm_kzalloc(...) if (!data->supplies) return -ENOMEM; for (i = 0; i < ARRAY_SIZE(supply_names); i++) data->supplies[i].supply = supply_names[i]; return devm_regulator_bulk_get(data->dev, ARRAY_SIZE(supply_names), data->supplies); } Let's make this more convenient by doing providing a helper that does the copy. I have chosen to have the "const" input structure here be the exact same structure as the normal one passed to devm_regulator_bulk_get(). This is slightly inefficent since the input data can't possibly have anything useful for "ret" or consumer and thus we waste 8 bytes per structure. This seems an OK tradeoff for not introducing an extra structure. Signed-off-by: Douglas Anderson Link: https://lore.kernel.org/r/20220726103631.v2.6.I38fc508a73135a5c1b873851f3553ff2a3a625f5@changeid Signed-off-by: Mark Brown

regulator: core: Allow specifying an initial load w/ the bulk API

2022-07-27T12:47:29Z

There are a number of drivers that follow a pattern that looks like this: 1. Use the regulator bulk API to get a bunch of regulators. 2. Set the load on each of the regulators to use whenever the regulators are enabled. Let's make this easier by just allowing the drivers to pass the load in. As part of this change we need to move the error printing in regulator_bulk_get() around; let's switch to the new dev_err_probe() to simplify it. Signed-off-by: Douglas Anderson Link: https://lore.kernel.org/r/20220726103631.v2.4.Ie85f68215ada39f502a96dcb8a1f3ad977e3f68a@changeid Signed-off-by: Mark Brown

regulator: devres: unexport devm_regulator_unregister_supply_alias()

2021-07-11T22:50:34Z

This API hook isn't used anywhere outside of the regulator devres code. This function is needed for the devm_regulator_bulk_register_supply_alias() function on the error path, to cleanup any previously registered supply aliases. This change makes the devm_regulator_unregister_supply_alias() local to the regulator core framework, to avoid it being used in any weird logic. It's also removing the doc-string for devm_regulator_unregister_supply_alias(), since it doesn't need to be documented anymore, as no other external consumer should use it. Signed-off-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210625122324.327585-5-aardelean@deviqon.com Signed-off-by: Mark Brown

regulator: devres: remove devm_regulator_bulk_unregister_supply_alias()

2021-07-11T22:50:33Z

This API hook isn't used anywhere and most-likely exists because of the general principle of C APIs, where if an API function does an allocation/registration, it must also have an equivalent deallocation/deregistration counterpart. For devm_ functions this isn't all that true (for all cases), as the idea of these function is to provide an auto-cleanup logic on drivers/system de-init. Removing this also discourages any weird logic that could be created with such an API function. Signed-off-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210625122324.327585-4-aardelean@deviqon.com Signed-off-by: Mark Brown

regulator: add warning flags

2021-06-21T12:08:38Z

Add 'warning' level events and error flags to regulator core. Current regulator core notifications are used to inform consumers about errors where HW is misbehaving in such way it is assumed to be broken/unrecoverable. There are PMICs which are designed for system(s) that may have use for regulator indications sent before HW is damaged so that some board/consumer specific recovery-event can be performed while continuing most of the normal operations. Add new WARNING level events and notifications to be used for that purpose. Signed-off-by: Matti Vaittinen Link: https://lore.kernel.org/r/9b54aa5589ae4b5945d53d114bac3fae55fa4818.1622628333.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Mark Brown

regulator: consumer: Add missing stubs to regulator/consumer.h

2021-01-21T12:35:42Z

Add missing stubs to regulator/consumer.h in order to fix COMPILE_TEST of the kernel. In particular this should fix compile-testing of OPP core because of a missing stub for regulator_sync_voltage(). Reported-by: kernel test robot Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/r/20210120205844.12658-1-digetx@gmail.com Signed-off-by: Mark Brown

regulator: consumer: Supply missing prototypes for 3 core functions

2020-06-25T19:11:12Z

regulator_suspend_enable(), regulator_suspend_disable() and regulator_set_suspend_voltage() are all exported members of the API, but are all missing prototypes. Fixes the following W=1 warning(s): drivers/regulator/core.c:3805:5: warning: no previous prototype for ‘regulator_suspend_enable’ [-Wmissing-prototypes] 3805 | int regulator_suspend_enable(struct regulator_dev *rdev, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/core.c:3812:5: warning: no previous prototype for ‘regulator_suspend_disable’ [-Wmissing-prototypes] 3812 | int regulator_suspend_disable(struct regulator_dev *rdev, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/core.c:3851:5: warning: no previous prototype for ‘regulator_set_suspend_voltage’ [-Wmissing-prototypes] 3851 | int regulator_set_suspend_voltage(struct regulator *regulator, int min_uV, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20200625163614.4001403-2-lee.jones@linaro.org Signed-off-by: Mark Brown

regulator fix for "regulator: core: Add regulator_is_equal() helper"

2020-01-15T14:10:45Z

Signed-off-by: Stephen Rothwell Link: https://lore.kernel.org/r/20200115120258.0e535fcb@canb.auug.org.au Acked-by: Marek Vasut Signed-off-by: Mark Brown

regulator: core: Add regulator_is_equal() helper

2020-01-14T15:50:31Z

Add regulator_is_equal() helper to compare whether two regulators are the same. This is useful for checking whether two separate regulators in a driver are actually the same supply. Signed-off-by: Marek Vasut Cc: Fabio Estevam Cc: Igor Opaniuk Cc: Liam Girdwood Cc: Marcel Ziswiler Cc: Mark Brown Cc: Oleksandr Suvorov Link: https://lore.kernel.org/r/20191220164450.1395038-1-marex@denx.de Signed-off-by: Mark Brown