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path: root/drivers/regulator/arizona-ldo1.c
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2020-05-08regulator: use linear_ranges helperMatti Vaittinen1-1/+1
Change the regulator helpers to use common linear_ranges code. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/64f01d5e381b8631a271616b7790f9d5640974fb.1588944082.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-21regulator: arizona-ldo1: Add support for Cirrus Logic Madera codecsRichard Fitzgerald1-1/+82
This adds a new driver identity "madera-ldo1" and probe function so that this driver can be used to control the LDO1 regulator on some Cirrus Logic Madera codecs. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-17regulator: arizona: Switch to SPDX identifierAxel Lin1-12/+7
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26regulator: arizona_ldo1: Simplify arizona_ldo1_hc_set/get_voltage_selAxel Lin1-13/+6
Setup .vsel_reg and .vsel_mask then we can use the standard set/get_voltage_sel_regmap helpers to simplify the code. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-22regulator: arizona-ldo1: Convert to use regulator_linear_range for ldo1_hcAxel Lin1-28/+9
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-12regulator: arizona-ldo1: Rely on core to handle GPIO descriptorLinus Walleij1-3/+0
After making sure that the regulator core always take over handling of the GPIO descriptors, the gpiod_put() on the errorpath of the Arizona LDO1 driver becomes redundant. Reported-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-15regulator: Fetch enable gpiods nonexclusiveLinus Walleij1-1/+1
Since the core regulator code is treating GPIO descriptors as nonexclusive, i.e. it assumes that the enable GPIO line may be shared with several regulators, let's add the flag introduced for fixing this problem on fixed regulators to all drivers fetching GPIO descriptors to avoid possible regressions. Reported-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-06-19regulator: arizona-ldo1: Use correct device to get enable GPIOCharles Keepax1-3/+24
Currently the enable GPIO is being looked up on the regulator device itself but that does not have its own DT node, this causes the lookup to fail and the regulator not to get its GPIO. The DT node is shared across the whole MFD and as such the lookup needs to happen on that parent device. Moving the lookup to the parent device also means devres can no longer be used as the life time would attach to the wrong device. Additionally, the enable GPIO is active high so we should be passing GPIOD_OUT_LOW to ensure the regulator starts in its off state allowing the driver to enable it when it is ready. Fixes: e1739e86f0cb ("regulator: arizona-ldo1: Look up a descriptor and pass to the core") Reported-by: Matthias Reichl <hias@horus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-05-17regulator: arizona-ldo1: Look up a descriptor and pass to the coreLinus Walleij1-13/+6
Instead of passing a global GPIO number, pass a descriptor looked up with the standard devm_gpiod_get_optional() call. We have augmented the GPIO core to look up the regulator special GPIO "wlf,ldoena" in commit 6a537d48461d "gpio: of: Support regulator nonstandard GPIO properties". Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-25regulator: arizona-ldo1: Factor out generic initializationRichard Fitzgerald1-48/+66
In preparation for sharing this driver with Madera codecs, factor out the parts of initialization that aren't dependent on struct arizona. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-25regulator: arizona-ldo1: Make arizona_ldo1 independent of struct arizonaRichard Fitzgerald1-4/+4
In preparation for supporting Madera codecs, remove the dependency on struct arizona in the regulator callbacks and struct arizona_ldo1. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-25regulator: arizona-ldo1: Move pdata into a separate structureRichard Fitzgerald1-18/+21
In preparation for sharing this driver with Madera, move the pdata for the LDO1 regulator out of struct arizona_pdata into a dedicated pdata struct for this driver. As a result the code in arizona_ldo1_of_get_pdata() can be made independent of struct arizona. This patch also updates the definition of struct arizona_pdata and the use of this pdata in mach-crag6410-module.c Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-25Merge tag 'v4.11-rc1' into regulator-arizonaMark Brown1-2/+2
Linux 4.11-rc1
2017-03-29regulator: arizona-ldo1: Avoid potential memory leak reading init_dataCharles Keepax1-4/+5
The device argument passed to of_get_regulator_init_data is used to do some devres memory allocation. Currently the driver passes the MFD device pointer to this function, this could result in the init_data allocation being leaked if the regulator is unbound but the MFD isn't. Correct this issue by correctly passing the local platform device. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-01-31regulator: arizona-ldo1: constify regulator_ops structureBhumika Goyal1-2/+2
Declare regulator_ops structure as const as it is only stored in the ops field of a regulator_desc structure. This field is of type const, so regulator_ops structures having this property can be made const too. File size before: drivers/regulator/arizona-ldo1.o text data bss dec hex filename 1890 720 0 2610 a32 drivers/regulator/arizona-ldo1.o File size after: drivers/regulator/arizona-ldo1.o text data bss dec hex filename 2402 192 0 2594 a22 drivers/regulator/arizona-ldo1.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-24regulator: arizona-ldo1: Set appropriate value for ramp_delayCharles Keepax1-0/+2
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-16regulator: arizona-ldo1: Fix handling of GPIO 0Charles Keepax1-5/+13
The LDO1 driver is using the arizona_of_get_named_gpio helper function which will return 0 if an error was encountered whilst parsing the GPIO, as under the pdata scheme 0 was not being treated as a valid GPIO. However, since the regulator framework was expanded to allow the use of GPIO 0 this causes us to attempt to register GPIO 0 when we encountered an error parsing the device tree. This patch uses of_get_named_gpio directly and sets the ena_gpio_initialized flag based on the return value. Fixes: 1de3821ace82 ("regulator: Set ena_gpio_initialized in regulator drivers") Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-02regulator: arizona: add support for WM8998 and WM1814Richard Fitzgerald1-0/+2
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-26Merge tag 'sound-4.2-rc1' of ↵Linus Torvalds1-5/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "It was a busy development cycle at this time, as you can see a wide range of changes in diffstat. There are no big changes but many refactoring and improvements. Here we go some highlights: ALSA core: - Procfs codes were cleaned up to use seq_file - Procfs can be opt out via Kconfig (only for EXPERT) - Two types of jack API were unified finally; now both kctl and input jack devs are handled via a single function call. HD-audio: - Continued code restructuring for the future ASoC driver; now HDA controller driver is split to a core helper module. - Preliminary codes for Skylake audio support in HDA core. - Proper i915 gfx power well management for SKL & co - Enabled runtime PM as default for Intel HDMI/DP codecs - Newer Tegra chip supports - More quirks for Dell headsets, Alienware (with CA0132), etc. - A couple of DRM ELD helper API functions ASoC: - Support for loading ASoC topology maps from firmware, intended to be used to allow self-describing DSP firmware images to be built which can map controls added by the DSP to userspace without the kernel needing to know about individual DSP firmwares - Lots of refactoring to avoid direct access to snd_soc_codec where it's not needed supporting future refactoring - Big refactoring, cleanup and enhancement for the Wolfson ADSP driver - Cleanup series for TI TAS2552 and R-CAR drivers - Fixes and improvements on RT56xx codecs - Support for TI TAS571x power amplifiers - Support for Qualcomm APQ8016 and ZTE ZX296702 SoCs - Support for x86 systems with RT5650 and Qualcomm Storm - Support for Mediatek AFE (Audio Front End) unit - Other various small fixes to ASoC codec drivers Firewire: - Enhanced to allow non-blocking streams to use timestamp synchronization - Improve support for DM1500 and BeBoBv3 Misc: - Cleanup of old pci API functions over all PCI sound drivers - Fix long-standing regression of the old powermac i2c setup" * tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (533 commits) ALSA: pcm: Fix pcm_class sysfs output ALSA: hda-beep: Update authors dead email address ASoC: wm_adsp: Move DSP Rate controls into the codec ASoC: wm8995: Fix setting sysclk for WM8995_SYSCLK_MCLK2 case ALSA: hda: provide default bus io ops extended hdac ALSA: hda: add hda link cleanup routine ALSA: hda: add hdac_ext stream creation and cleanup routines ASoC: rsrc-card: remove unused ret ALSA: HDAC: move SND_HDA_PREALLOC_SIZE to core ASoC: mediatek: Add machine driver for rt5650 rt5676 codec ASoC: mediatek: Add machine driver for MAX98090 codec ASoC: mediatek: Add AFE platform driver ASoC: rsnd: remove io from rsnd_mod ASoC: rsnd: move rsnd_mod_is_working() to rsnd_io_is_working() ASoC: rsnd: don't use rsnd_mod_to_io() on snd_kcontrol ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_src_xxx() ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_ssi_xxx() ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_dma_xxx() ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_get_adinr() ASoC: rsnd: add common interrupt handler for SSI/SRC/DMA ...
2015-06-02regulator: arizona-ldo1: Do not control DVFS clocking from regulatorRichard Fitzgerald1-5/+0
Using the driver for the internal regulator to also enable/disable the codec internal clock frequency controller is an unexpected side-effect for a regulator, and also means that the core clocks won't be changed as expected if an external regulator is used to power the codec. The DVFS is now handled by the codec driver so can be removed from the LDO1 driver. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-05-11regulator: arizona-ldo1: Add additional supported voltageCharles Keepax1-0/+15
This patch adds support for the 1.175V mode on the LDO1 regulator on the wm5110. This is need as part of the low power sleep mode operation. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-21regulator: arizona-ldo1: Drop OF node reference on error pathCharles Keepax1-2/+3
We were not calling of_node_put if the regulator failed to register this patch fixes this. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-15Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-05Merge remote-tracking branches 'regulator/topic/max77686', ↵Mark Brown1-3/+5
'regulator/topic/max77693', 'regulator/topic/max77802', 'regulator/topic/power-off' and 'regulator/topic/rk808' into regulator-next
2014-11-26regulator: of: Add regulator desc param to of_get_regulator_init_data()Javier Martinez Canillas1-3/+5
The of_get_regulator_init_data() function is used to extract the regulator init_data but information on how to extract certain data is defined in the static regulator descriptor (e.g: how to map the hardware operating modes). Add a const struct regulator_desc * parameter to the function signature so the parsing logic could use the information in the struct regulator_desc. of_get_regulator_init_data() relies on of_get_regulation_constraints() to actually extract the init_data so it has to pass the struct regulator_desc but that is modified on a later patch. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07regulator: Set ena_gpio_initialized in regulator driversMarkus Pargmann1-0/+2
This patch sets ena_gpio_initialized for all drivers which set a ena_gpio from parsed DT properties. Drivers using pdata may get zero initialized pdata and therefore copy a 0 into the regulator_config ena_gpio field. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20regulator: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-07-04regulator: arizona-ldo1: remove bypass functionalityNikesh Oswal1-2/+0
WM5110/8280 devices do not support bypass mode for LDO1 so remove the bypass callbacks registered with regulator core. Signed-off-by: Nikesh Oswal <nikesh@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2014-05-27regulator: arizona-ldo1: add missing #includeArnd Bergmann1-0/+1
commit 2cce4be9e6b8 "regulator: arizona-ldo1: Add processing of init_data from device tree" added a call to of_get_child_by_name() but did not add an #include to the header file declaring that function. I got a build error when doing randconfig testing on this, which is fixed by this patch to include of.h. drivers/regulator/arizona-ldo1.c:192:2: error: implicit declaration of function 'of_get_child_by_name' [-Werror=implicit-function-declaration] drivers/regulator/arizona-ldo1.c:193:2: error: implicit declaration of function 'of_parse_phandle' [-Werror=implicit-function-declaration] drivers/regulator/arizona-ldo1.c:213:2: error: implicit declaration of function 'of_node_put' [-Werror=implicit-function-declaration] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-18regulator: arizona-ldo1: Add processing of init_data from device treeCharles Keepax1-2/+32
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-18regulator: arizona-ldo1: Move setup processing from arizona-coreCharles Keepax1-0/+27
It is more idiomatic to process things relating to the regulator in its driver. This patch moves both processing of device tree relating to the regulator and checking if the regulator is external from arizona-core into the regulator driver. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-18regulator: arizona-ldo1: Correct default regulator init_dataCharles Keepax1-4/+3
Both 5102 and 8997 have the regulator capable of supplying 1.8V, and the voltage step from the 5110 regulator is different from what is specified in the default description. This patch updates the default regulator description to match 5110 and selects the 1.8V capable description for 8997. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2014-02-19regulator: arizona-ldo1: Remove redundant error messageSachin Kamat1-3/+1
kzalloc prints its own OOM message upon failure. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-17regulator: arizona-ldo1: Convert to devm_regulator_register()Mark Brown1-11/+1
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-03-26regulator: arizona: Increase ramp delay for high current regulatorsMark Brown1-1/+1
As per latest evaluation. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10Merge remote-tracking branch 'regulator/topic/hotplug' into regulator-nextMark Brown1-3/+3
2012-11-28regulator: arizona-ldo1: Support 1.8V modeMark Brown1-1/+106
Some Arizona device support a 1.8V output mode. Enable this in the driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28regulator: arizona-ldo1: Add additional top voltageMark Brown1-1/+1
The number of voltage slots supported by the LDO is 7, not 6. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28regulator: arizona-ldo1: Support DVFS in default constraintsMark Brown1-1/+19
Some Arizona devices such as the WM5102 can use DVFS on their digital core, for these devices allow the voltage range to vary in the default setup. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28regulator: arizona-ldo1: Add enable timeMark Brown1-0/+1
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20regulator: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20regulator: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20regulator: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-28Merge remote-tracking branches 'regulator/topic/core', ↵Mark Brown1-1/+5
'regulator/topic/bypass', 'regulator/topic/tol', 'regulator/topic/drivers' and 'regulator/topic/tps6586x' into regulator-next
2012-09-28regulator: arizona-ldo: Remove top voltageMark Brown1-1/+1
The highest voltage step is not supported. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-10regulator: arizona-ldo: Support get/set bypassMark Brown1-0/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-03regulator: arizona-ldo1: Implement GPIO enable supportMark Brown1-0/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-25regulator: Add driver for Arizona LDO1Mark Brown1-0/+134
Arizona class devices feature an integrated LDO which is intended to supply the digital core for the device. Provide a driver offering minimal control of this regulator. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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