Commit Graph

543 Commits

Author SHA1 Message Date
Linus Torvalds
fa722ecb93 Merge tag 'mfd-next-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
 "New Device Support:
   - Add support for Lakefield PCH to Intel LPSS PCI

  Remove Device Support:
   - Remove support for ROHM BD70528 Power Management IC

  New Functionality:
   - Add support for SMBus and I2C mode to Dialog DA9062/61 PMIC
   - Enable I2C4 on Microsoft Surface Go & Go 2

  Fix-ups:
   - Device Tree changes (inc. YAML conversion); maxim,max77686,
     rohm,bd9571mwv, syscon, brcm,twd, google,cros-ec
   - Use __maybe_unused instead of #ifery; atmel-flexcom
   - Allow the Regmap API to handle endianess internally; ntxec
   - Utilise I2C's .resume_noirq call-back; atmel-flexcom
   - Remove unused code; ti_am335x_tscadc
   - Use CPU-id instead of ACPI _HRV to ID variants; intel_soc_pmic_core
   - Allow device to power-off right from .probe(); tps65910
   - Trivial (whitespace, typos, etc); da9063

  Bug Fixes:
   - Fix ordering issues during probe; intel-lpss-acpi
   - Fix correct clock speed; intel-lpss-pci"

* tag 'mfd-next-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (25 commits)
  mfd: google,cros-ec: Fix property name for MediaTek rpmsg
  dt-bindings: mfd: Fix typo "DA9093" -> "DA9063"
  mfd: ntxec: Change return type of ntxec_reg8 from __be16 to u16
  mfd: tps65910: Set PWR_OFF bit during driver probe
  mfd: intel_soc_pmic: Use CPU-id check instead of _HRV check to differentiate variants
  mfd: intel-lpss: Fix I2C4 not being available on the Microsoft Surface Go & Go 2
  dt-bindings: mfd: Add Broadcom's Timer-Watchdog block
  dt-bindings: mfd: Add Freecom system controller
  mfd: Kconfig: Change INTEL_SOC_PMIC_CHTDC_TI to bool
  dt-bindings: mfd: syscon: Add samsung,exynos850-sysreg
  mfd: da9062: Support SMBus and I2C mode
  mfd: intel-lpss-pci: Fix clock speed for 38a8 UART
  mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe()
  mfd: ti_am335x_tscadc: Drop the CNTRLREG_TSC_8WIRE macro
  mfd: stmpe: Support disabling sub-functions
  mfd: atmel-flexcom: Use .resume_noirq
  mfd: atmel-flexcom: Remove #ifdef CONFIG_PM_SLEEP
  dt-bindings: mfd: bd9571mwv: Convert to json-schema
  mfd: intel-lpss: Add Intel Lakefield PCH PCI IDs
  dt-bindings: mfd: maxim,max77686: Convert to dtschema
  ...
2022-01-11 12:22:06 -08:00
Linus Torvalds
fef8dfaea9 Merge tag 'regulator-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
 "This has been a fairly quiet release for the regulator API, the main
  thing has been the addition of helpers for interrupt handling from
  Matti Vaittinen.

  We do also have support for quite a few new devices.

  Summary:

   - Helpers for trivial interrupt notifications, making it easier for
     drivers to handle error interrupts.

   - Support for Dialog DA914x, Maxim MAX2008x, Qualcomm PM8826,
     PMG1100, and PM8450 and TI TPS68470"

* tag 'regulator-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (30 commits)
  regulator: Add MAX20086-MAX20089 driver
  dt-bindings: regulators: Add bindings for Maxim MAX20086-MAX20089
  regulator: qcom_smd: Align probe function with rpmh-regulator
  regulator: remove redundant ret variable
  regulator: qcom-labibb: OCP interrupts are not a failure while disabled
  regulator: dt-bindings: samsung,s5m8767: Move fixed string BUCK9 to 'properties'
  regulator: Introduce tps68470-regulator driver
  drivers/regulator: remove redundant ret variable
  regulator: fix bullet lists of regulator_ops comment
  regulator: Fix type of regulator-coupled-max-spread property
  regulator: maxim,max8973: Document interrupts property
  regulator: qcom-rpmh: Add support for PM8450 regulators
  regulator: qcom,rpmh: Add compatible for PM8450
  regulator: da9121: Add DA914x binding info
  regulator: da9121: Remove erroneous compatible from binding
  regulator: da9121: Add DA914x support
  regulator: da9121: Prevent current limit change when enabled
  regulator: qcom-rpmh: Add PMG1110 regulators
  dt-bindings: regulator: Add compatible for pmg1110
  regulator: qcom_spmi: Add pm8226 regulators
  ...
2022-01-11 12:17:45 -08:00
Laurent Pinchart
764aaa4e03 dt-bindings: regulators: Add bindings for Maxim MAX20086-MAX20089
The MAX20086-MAX20089 are dual/quad power protectors for cameras. Add
corresponding DT bindings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20220106224350.16957-2-laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-07 13:36:34 +00:00
Rob Herring
5d55cbc720 regulator: dt-bindings: samsung,s5m8767: Move fixed string BUCK9 to 'properties'
There's no need for a fixed string like 'BUCK9' to be under
'patternProperties', so move it under 'properties' instead.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211221120744.1118518-1-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-21 13:21:41 +00:00
Linus Torvalds
3856c1b398 Merge tag 'regulator-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
 "Binding fix for v5.16

  This fixes problems validating DT bindings using op_mode which wasn't
  described as it should have been when converting to DT schema"

* tag 'regulator-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: dt-bindings: samsung,s5m8767: add missing op_mode to bucks
2021-12-20 10:13:30 -08:00
Thierry Reding
8d2de3a548 regulator: Fix type of regulator-coupled-max-spread property
According to the description and the various uses of this property it is
meant to be an array of unsigned 32-bit values, so fixup the type to
match that.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211206153726.227464-1-thierry.reding@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-07 14:33:26 +00:00
Thierry Reding
4aafc5c61b regulator: maxim,max8973: Document interrupts property
One of the examples in the bindings has an interrupts property and the
Linux kernel driver has support for requesting an interrupt as well. It
looks like the absence from the bindings was just an oversight. Add the
property to make sure the examples can be validated.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211206153432.226963-1-thierry.reding@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-07 14:33:25 +00:00
Krzysztof Kozlowski
85223d609c regulator: dt-bindings: samsung,s5m8767: add missing op_mode to bucks
While converting bindings to dtschema, the buck regulators lost
"op_mode" property.  The "op_mode" is a valid property for all
regulators (both LDOs and bucks), so add it.

Reported-by: Rob Herring <robh@kernel.org>
Fixes: fab58debc1 ("regulator: dt-bindings: samsung,s5m8767: convert to dtschema")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211206124306.14006-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-06 13:49:07 +00:00
Vinod Koul
fa3b06f59a regulator: qcom,rpmh: Add compatible for PM8450
Add compatible string for PM8450 used in SM8450 boards.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20211201072515.3968843-2-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-01 14:15:42 +00:00
Adam Ward
d07fef2fcd regulator: da9121: Add DA914x binding info
Add the configuration for the DA9141 and DA9142 regulators.
Also tidy the table, cleaning away superfluous information.

Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/9293e3ae4ff8776704257085df65516b81209b87.1638223185.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-30 13:08:20 +00:00
Adam Ward
b9c044b7d6 regulator: da9121: Remove erroneous compatible from binding
Clean away information from a test that was included accidentally

Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/530a626cee6bc12ff5b4ab16319ac7a1fac6e306.1638223185.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-30 13:08:19 +00:00
Krzysztof Kozlowski
f8689195d7 regulator: dt-bindings: maxim,max77686: Convert to dtschema
Convert the regulators of Maxim MAX77686 PMIC to DT schema format.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211125074826.7947-2-krzysztof.kozlowski@canonical.com
2021-11-29 13:16:59 +00:00
Satya Priya
ac88e9526d dt-bindings: regulator: Add compatible for pmg1110
Add compatible string for pmg1110 pmic.

Signed-off-by: Satya Priya <quic_c_skakit@quicinc.com>
Link: https://lore.kernel.org/r/1637668167-31325-2-git-send-email-quic_c_skakit@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-29 12:19:55 +00:00
Matti Vaittinen
81a7297c5b dt-bindings: mfd: regulator: Drop BD70528 support
The only known BD70528 use-cases are such that the PMIC is controlled
from separate MCU which is not running Linux. I am not aware of
any Linux driver users. Furthermore, it seems there is no demand for
this IC. Let's ease the maintenance burden and drop the driver. We can
always add it back if there is sudden need for it.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/64c88990270d9a22508446ef2fe3b6a2622a0b01.1637066805.git.matti.vaittinen@fi.rohmeurope.com
2021-11-29 12:04:13 +00:00
Dominik Kobinski
76e95f331b dt-bindings: regulator: qcom: spmi-regulator: Document pm8226 compatible
Suggested-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Signed-off-by: Dominik Kobinski <dominikkobinski314@gmail.com>
Link: https://lore.kernel.org/r/20211123180816.2835-1-dominikkobinski314@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-26 13:24:34 +00:00
Patrice Chotard
f4eedebdbf dt-bindings: treewide: Update @st.com email address to @foss.st.com
Not all @st.com email address are concerned, only people who have
a specific @foss.st.com email will see their entry updated.
For some people, who left the company, remove their email.

Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Cc: Fabien Dessenne <fabien.dessenne@foss.st.com>
Cc: Christophe Roullier <christophe.roullier@foss.st.com>
Cc: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Cc: Lionel Debieve <lionel.debieve@foss.st.com>
Cc: Amelie Delaunay <amelie.delaunay@foss.st.com>
Cc: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Cc: Ludovic Barre <ludovic.barre@foss.st.com>
Cc: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: pascal Paillet <p.paillet@foss.st.com>
Cc: Erwan Le Ray <erwan.leray@foss.st.com>
Cc: Philippe CORNU <philippe.cornu@foss.st.com>
Cc: Yannick Fertre <yannick.fertre@foss.st.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Hugues Fruchet <hugues.fruchet@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20211110150144.18272-6-patrice.chotard@foss.st.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-11-11 22:27:16 -06:00
Linus Torvalds
3a9b0a46e1 Merge tag 'mfd-next-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
 "Removed Drivers:
   - Remove support for TI TPS80031/TPS80032 PMICs

  New Device Support:
   - Add support for Magnetic Reader to TI AM335x
   - Add support for DA9063_EA to Dialog DA9063
   - Add support for SC2730 PMIC to Spreadtrum SC27xx
   - Add support for MacBookPro16,2 ICL-N UART Intel LPSS PCI
   - Add support for lots of new PMICS in QCom SPMI PMIC
   - Add support for ADC to Diolan DLN2

  New Functionality:
   - Add support for Power Off to Rockchip RK817

  Fix-ups:
   - Simplify Regmap passing to child devices in hi6421-spmi-pmic
   - SPDX licensing updates in ti_am335x_tscadc
   - Improve error handling in ti_am335x_tscadc
   - Expedite clock search in ti_am335x_tscadc
   - Generic simplifications in ti_am335x_tscadc
   - Use generic macros/defines in ti_am335x_tscadc
   - Remove unused code in ti_am335x_tscadc, cros_ec_dev
   - Convert to GPIOD in wcd934x
   - Add namespacing in ti_am335x_tscadc
   - Restrict compilation to relevant arches in intel_pmt
   - Provide better description/documentation in exynos_lpass
   - Add SPI device ID table in altera-a10sr, motorola-cpcap,
     sprd-sc27xx-spi
   - Change IRQ handling in qcom-pm8xxx
   - Split out I2C and SPI code in arizona
   - Explicitly include used headers in altera-a10sr
   - Convert sysfs show() function to in sysfs_emit
   - Standardise *_exit() and *_remove() return values in mc13xxx,
     stmpe, tps65912
   - Trivial (style/spelling/whitespace) fixups in ti_am335x_tscadc,
     qcom-spmi-pmic, max77686-private
   - Device Tree fix-ups in ti,am3359-tscadc, samsung,s2mps11,
     samsung,s2mpa01, samsung,s5m8767, brcm,misc, brcm,cru, syscon,
     qcom,tcsr, xylon,logicvc, max77686, x-powers,ac100,
     x-powers,axp152, x-powers,axp209-gpio, syscon, qcom,spmi-pmic

  Bug Fixes:
   - Balance refcounting (get/put) in ti_am335x_tscadc, mfd-core
   - Fix IRQ trigger type in sec-irq, max77693, max14577
   - Repair off-by-one in altera-sysmgr
   - Add explicit 'select MFD_CORE' to MFD_SIMPLE_MFD_I2C"

* tag 'mfd-next-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (95 commits)
  mfd: simple-mfd-i2c: Select MFD_CORE to fix build error
  mfd: tps80031: Remove driver
  mfd: max77686: Correct tab-based alignment of register addresses
  mfd: wcd934x: Replace legacy gpio interface for gpiod
  dt-bindings: mfd: qcom: pm8xxx: Add pm8018 compatible
  mfd: dln2: Add cell for initializing DLN2 ADC
  mfd: qcom-spmi-pmic: Add missing PMICs supported by socinfo
  mfd: qcom-spmi-pmic: Document ten more PMICs in the binding
  mfd: qcom-spmi-pmic: Sort compatibles in the driver
  mfd: qcom-spmi-pmic: Sort the compatibles in the binding
  mfd: janz-cmoio: Replace snprintf in show functions with sysfs_emit
  mfd: altera-a10sr: Include linux/module.h
  mfd: tps65912: Make tps65912_device_exit() return void
  mfd: stmpe: Make stmpe_remove() return void
  mfd: mc13xxx: Make mc13xxx_common_exit() return void
  dt-bindings: mfd: syscon: Add samsung,exynosautov9-sysreg compatible
  mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion
  dt-bindings: gpio: Convert X-Powers AXP209 GPIO binding to a schema
  dt-bindings: mfd: syscon: Add rk3368 QoS register compatible
  mfd: arizona: Split of_match table into I2C and SPI versions
  ...
2021-11-08 12:07:52 -08:00
Krzysztof Kozlowski
215e50b086 mfd: max77686: Do not enforce (incorrect) interrupt trigger type
Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.

The Maxim 77686 datasheet describes the interrupt line as active low
with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.

The interrupt line is shared between PMIC and RTC driver, so using level
sensitive interrupt is here especially important to avoid races.  With
an edge configuration in case if first PMIC signals interrupt followed
shortly after by the RTC, the interrupt might not be yet cleared/acked
thus the second one would not be noticed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210602110445.33536-2-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:06 +00:00
Mark Brown
0627d75a18 Merge series "regulator: Introduce UniPhier NX1 SoC support" from Kunihiko Hayashi <hayashi.kunihiko@socionext.com>:
This series includes the patches to add basic support for new UniPhier NX1
SoC. NX1 SoC also has the same kinds of controls as the other UniPhier
SoCs.

Kunihiko Hayashi (2):
  dt-bindings: regulator: uniphier: Add binding for NX1 SoC
  regulator: uniphier: Add USB-VBUS compatible string for NX1 SoC

 .../devicetree/bindings/regulator/socionext,uniphier-regulator.yaml   | 1 +
 drivers/regulator/uniphier-regulator.c                                | 4 ++++
 2 files changed, 5 insertions(+)

--
2.7.4
2021-10-22 01:51:36 +01:00
Kunihiko Hayashi
4c1ef56bd9 regulator: uniphier: Add binding for NX1 SoC
Update USB-VBUS binding document for UniPhier NX1 SoC.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1634520605-16583-2-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-21 16:08:08 +01:00
Luca Weiss
12271ba945 regulator: qcom,rpmh: Add compatible for PM6350
Add compatible string for pm6350 used in sm6350 boards.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20211007212444.328034-3-luca@z3ntu.xyz
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-21 14:19:11 +01:00
Lee Jones
9721f0e845 Merge tag 'tags/s2m_s5m_dtschema' into tb-mfd-from-regulator-5.16
regulator/clock: Convert the s2m and s5m DT bindings to schema

Tagged to allow further bindings to rely on these.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-10-21 10:44:38 +01:00
Mark Brown
636bdb5f84 Merge series "regulator/mfd/clock: dt-bindings: Samsung S2M and S5M to dtschema" from Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>:
Hi All,

Changes since v2
================
1. Add Stephen's and Rob's tags.
2. Correct inb-supply description in patch 10/10.

Changes since v2
================
1. Add Rob's tags.
2. Remove "regulator-name" from properties (all regulator dtschema).
3. Move "unevaluatedProperties" higher to make code easier to read (all regulator dtschema).
4. Add ref-type to op-mode property (patch 6: s5m8767 regulators).

Changes since v1
================
1. Drop DTS patches - applied.
2. Fully remove bindings/regulator/samsung,s5m8767.txt .
3. Minor subject reformatting and few typos in text.

Intro
=====
This patchset converts all devicetree bindings of Samsung S2M and S5M
PMIC devices from txt to dtschema.

It includes also two fixes because later conversion depends on it
(contextually).

Merging/dependencies
====================
1. Regulator related binding changes depend on first two commits (the
   fixes), because of context.
2. The mfd bindings depend on clock and regulator bindings.

The fixes and bindings changes (patches 1-10) should go via the same
tree.  For example regulator or mfd tree.

Another alternative is that regulator patches (1-2, 4-6) go via Mark who
later gives MFD a stable branch/tag to pull. Then the clock and MFD
bindings would go on top via MFD tree. Or any other setup you would like
to have.

Overview of devices
===================
Essentially all Samsung S2M and S5M PMICs are very similar devices. They
provide the same functionality: regulators, RTC, 2 or 3 clocks and main
power management (e.g. power cut to SoC).

The differences are mostly in registers layout and number of regulators.

The drivers are built around one common part, mfd/sec-core.c, and share
some drivers between devices:
1. MFD sec-core for all devices,
1. one clock driver for most of devices,
2. one RTC driver for all devices,
3. three regulator drivers.

The regulator drivers were implementing slightly different features,
therefore one regulator binding for all devices does not make much
sense.  However the clock device binding can be shared.

The final dtschema bindings try to implement this - share only the clock
bindings.

Best regards,
Krzysztof

Krzysztof Kozlowski (10):
  regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS
    is disabled
  regulator: dt-bindings: samsung,s5m8767: correct
    s5m8767,pmic-buck-default-dvs-idx property
  dt-bindings: clock: samsung,s2mps11: convert to dtschema
  regulator: dt-bindings: samsung,s2m: convert to dtschema
  regulator: dt-bindings: samsung,s2mpa01: convert to dtschema
  regulator: dt-bindings: samsung,s5m8767: convert to dtschema
  dt-bindings: mfd: samsung,s2mps11: convert to dtschema
  dt-bindings: mfd: samsung,s2mpa01: convert to dtschema
  dt-bindings: mfd: samsung,s5m8767: convert to dtschema
  dt-bindings: mfd: samsung,s5m8767: document buck and LDO supplies

 .../bindings/clock/samsung,s2mps11.txt        |  49 ---
 .../bindings/clock/samsung,s2mps11.yaml       |  45 +++
 .../bindings/mfd/samsung,s2mpa01.yaml         |  91 ++++++
 .../bindings/mfd/samsung,s2mps11.yaml         | 267 +++++++++++++++
 .../bindings/mfd/samsung,s5m8767.yaml         | 307 ++++++++++++++++++
 .../bindings/mfd/samsung,sec-core.txt         |  86 -----
 .../bindings/regulator/samsung,s2mpa01.txt    |  79 -----
 .../bindings/regulator/samsung,s2mpa01.yaml   |  62 ++++
 .../bindings/regulator/samsung,s2mps11.txt    | 102 ------
 .../bindings/regulator/samsung,s2mps11.yaml   |  44 +++
 .../bindings/regulator/samsung,s2mps13.yaml   |  44 +++
 .../bindings/regulator/samsung,s2mps14.yaml   |  44 +++
 .../bindings/regulator/samsung,s2mps15.yaml   |  44 +++
 .../bindings/regulator/samsung,s2mpu02.yaml   |  44 +++
 .../bindings/regulator/samsung,s5m8767.txt    | 145 ---------
 .../bindings/regulator/samsung,s5m8767.yaml   |  74 +++++
 MAINTAINERS                                   |   9 +-
 drivers/regulator/s5m8767.c                   |  21 +-
 18 files changed, 1080 insertions(+), 477 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
 create mode 100644 Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
 create mode 100644 Documentation/devicetree/bindings/mfd/samsung,s2mpa01.yaml
 create mode 100644 Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml
 create mode 100644 Documentation/devicetree/bindings/mfd/samsung,s5m8767.yaml
 delete mode 100644 Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
 delete mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mpa01.txt
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mpa01.yaml
 delete mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mps11.txt
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mps11.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mps13.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mps14.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mps15.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s2mpu02.yaml
 delete mode 100644 Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s5m8767.yaml

--
2.30.2
2021-10-08 19:47:33 +01:00
Krzysztof Kozlowski
fab58debc1 regulator: dt-bindings: samsung,s5m8767: convert to dtschema
Convert the regulators of Samsung S5M8767 PMIC to DT schema format.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113931.134847-3-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-08 17:24:37 +01:00
Krzysztof Kozlowski
a52afb0f54 regulator: dt-bindings: samsung,s2mpa01: convert to dtschema
Convert the regulators of Samsung S2MPA01 PMIC to DT schema format.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113931.134847-2-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-08 17:24:36 +01:00
Krzysztof Kozlowski
ea98b9eba0 regulator: dt-bindings: samsung,s2m: convert to dtschema
Convert the regulators of Samsung
S2MPS11/S2MPS13/S2MPS14/S2MPS15/S2MPU02 family of PMICs to DT schema
format.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113931.134847-1-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-08 17:24:34 +01:00
Krzysztof Kozlowski
a7fda04bc9 regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
The driver was always parsing "s5m8767,pmic-buck-default-dvs-idx", not
"s5m8767,pmic-buck234-default-dvs-idx".

Cc: <stable@vger.kernel.org>
Fixes: 26aec009f6 ("regulator: add device tree support for s5m8767")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113723.134648-3-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-08 17:24:32 +01:00
Krzysztof Kozlowski
b16bef60a9 regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
The driver and its bindings, before commit 04f9f068a6 ("regulator:
s5m8767: Modify parsing method of the voltage table of buck2/3/4") were
requiring to provide at least one safe/default voltage for DVS registers
if DVS GPIO is not being enabled.

IOW, if s5m8767,pmic-buck2-uses-gpio-dvs is missing, the
s5m8767,pmic-buck2-dvs-voltage should still be present and contain one
voltage.

This requirement was coming from driver behavior matching this condition
(none of DVS GPIO is enabled): it was always initializing the DVS
selector pins to 0 and keeping the DVS enable setting at reset value
(enabled).  Therefore if none of DVS GPIO is enabled in devicetree,
driver was configuring the first DVS voltage for buck[234].

Mentioned commit 04f9f068a6 ("regulator: s5m8767: Modify parsing
method of the voltage table of buck2/3/4") broke it because DVS voltage
won't be parsed from devicetree if DVS GPIO is not enabled.  After the
change, driver will configure bucks to use the register reset value as
voltage which might have unpleasant effects.

Fix this by relaxing the bindings constrain: if DVS GPIO is not enabled
in devicetree (therefore DVS voltage is also not parsed), explicitly
disable it.

Cc: <stable@vger.kernel.org>
Fixes: 04f9f068a6 ("regulator: s5m8767: Modify parsing method of the voltage table of buck2/3/4")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113723.134648-2-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-08 17:24:30 +01:00
Krzysztof Kozlowski
19cd2b1471 regulator: dt-bindings: maxim,max8973: convert to dtschema
Convert the Maxim MAX8973 regulator to DT schema format.  Extend the
examples with more advanced one for MAX77621 copied from kernel's
nvidia/tegra210-smaug.dts, licensed under GPL-2.0.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008114755.148279-1-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-08 17:23:32 +01:00
Krzysztof Kozlowski
1d2104f216 regulator: dt-bindings: maxim,max8997: convert to dtschema
Convert the Maxim MAX8997 PMIC bindings to DT schema format.  Extend the
examples with additional one copied from kernel's exynos4210-origen.dts.
Also the binding descriptions are copied from old file, so license
entire work under GPL-2.0.

This also adds previously undocumented 32 kHz clock output modelled as
regulators.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211001130249.80405-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-07 16:57:59 +01:00
Krzysztof Kozlowski
5f4b59f7e6 regulator: dt-bindings: maxim,max8952: convert to dtschema
Convert the Maxim MAX8952 regulator to DT schema format.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210930140327.196232-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-04 18:02:52 +01:00
Shawn Guo
482f8032f4 regulator: Document PM2250 smd-rpm regulators
Document compatible for PM2250 smd-rpm regulators and list all of them.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210926084549.29880-2-shawn.guo@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-01 23:03:29 +01:00
Maxime Ripard
b1c36aae51 regulator: Convert SY8106A binding to a schema
The Silergy SY8106A is a regulator controlled through i2c supported by
Linux with a matching device tree binding.

Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.

Cc: Icenowy Zheng <icenowy@aosc.io>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Ondrej Jirman <megous@megous.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210901091852.479202-34-maxime@cerno.tech
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 01:59:26 +01:00
Linus Torvalds
9e5f3ffcf1 Merge tag 'devicetree-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:

 - Refactor arch kdump DT related code to a common implementation

 - Add fw_devlink tracking for 'phy-handle', 'leds', 'backlight',
   'resets', and 'pwm' properties

 - Various clean-ups to DT FDT code

 - Fix a runtime error for !CONFIG_SYSFS

 - Convert Synopsys DW PCI and derivative binding docs to schemas. Add
   Toshiba Visconti PCIe binding.

 - Convert a bunch of memory controller bindings to schemas

 - Covert eeprom-93xx46, Samsung Exynos TRNG, Samsung Exynos IRQ
   combiner, arm-charlcd, img-ascii-lcd, UniPhier eFuse, Xilinx Zynq
   MPSoC FPGA, Xilinx Zynq MPSoC reset, Mediatek mmsys, Gemini boards,
   brcm,iproc-i2c, faraday,ftpci100, and ks8851 net to DT schema.

 - Extend nvmem bindings to handle bit offsets in unit-addresses

 - Add DT schemas for HiKey 970 PCIe PHY

 - Remove unused ZTE, energymicro,efm32-timer, and Exynos SATA bindings

 - Enable dtc pci_device_reg warning by default

 - Fixes for handling 'unevaluatedProperties' in preparation to enable
   pending support in the tooling for jsonschema 2020-12 draft

* tag 'devicetree-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
  dt-bindings: display: remove zte,vou.txt binding doc
  dt-bindings: hwmon: merge max1619 into trivial devices
  dt-bindings: mtd-physmap: Add 'arm,vexpress-flash' compatible
  dt-bindings: PCI: imx6: convert the imx pcie controller to dtschema
  dt-bindings: Use 'enum' instead of 'oneOf' plus 'const' entries
  dt-bindings: Add vendor prefix for Topic Embedded Systems
  of: fdt: Rename reserve_elfcorehdr() to fdt_reserve_elfcorehdr()
  arm64: kdump: Remove custom linux,usable-memory-range handling
  arm64: kdump: Remove custom linux,elfcorehdr handling
  riscv: Remove non-standard linux,elfcorehdr handling
  of: fdt: Use IS_ENABLED(CONFIG_BLK_DEV_INITRD) instead of #ifdef
  of: fdt: Add generic support for handling usable memory range property
  of: fdt: Add generic support for handling elf core headers property
  crash_dump: Make elfcorehdr address/size symbols always visible
  dt-bindings: memory: convert Samsung Exynos DMC to dtschema
  dt-bindings: devfreq: event: convert Samsung Exynos PPMU to dtschema
  dt-bindings: devfreq: event: convert Samsung Exynos NoCP to dtschema
  kbuild: Enable dtc 'pci_device_reg' warning by default
  dt-bindings: soc: remove obsolete zte zx header
  dt-bindings: clock: remove obsolete zte zx header
  ...
2021-09-01 18:34:51 -07:00
Mark Brown
7aa6d700b0 Merge remote-tracking branch 'regulator/for-5.15' into regulator-next 2021-08-25 16:05:26 +01:00
Rob Herring
61aaaa8110 dt-bindings: Remove "status" from schema examples
There's no reason to have "status" properties in examples. "okay" is the
default, and "disabled" turns off some schema checks ('required'
specifically).

Enabling qca,ar71xx causes a warning, so let's fix the node names:

Documentation/devicetree/bindings/net/qca,ar71xx.example.dt.yaml: phy@3: '#phy-cells' is a required property
        From schema: schemas/phy/phy-provider.yaml

Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Robert Marko <robert.marko@sartura.hr>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Ramesh Shanmugasundaram <rashanmu@gmail.com>
Cc: "G. Jaya Kumaran" <vineetha.g.jaya.kumaran@intel.com>
Cc: ChiYuan Huang <cy_huang@richtek.com>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Dilip Kota <eswara.kota@linux.intel.com>
Cc: Karol Gugala <kgugala@antmicro.com>
Cc: Mateusz Holenko <mholenko@antmicro.com>
Cc: Olivier Moysan <olivier.moysan@st.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> # For media
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20210720172025.363238-1-robh@kernel.org
2021-07-27 08:03:12 -06:00
Linus Torvalds
7c3d49b0b5 Merge tag 'regulator-fix-v5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
 "A few driver specific fixes that came in since the merge window, plus
  a change to mark the regulator-fixed-domain DT binding as deprecated
  in order to try to to discourage any new users while a better solution
  is put in place"

* tag 'regulator-fix-v5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: hi6421: Fix getting wrong drvdata
  regulator: mtk-dvfsrc: Fix wrong dev pointer for devm_regulator_register
  regulator: fixed: Mark regulator-fixed-domain as deprecated
  regulator: bd9576: Fix testing wrong flag in check_temp_flag_mismatch
  regulator: hi6421v600: Fix getting wrong drvdata that causes boot failure
  regulator: rt5033: Fix n_voltages settings for BUCK and LDO
  regulator: rtmv20: Fix wrong mask for strobe-polarity-high
2021-07-21 12:37:49 -07:00
ChiYuan Huang
4c922fd3d6 regulator: rtq2134: Add binding document for Richtek RTQ2134 SubPMIC
Add binding document for Richtek RTQ2134 SubPMIC.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1626422636-29458-1-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-20 13:37:28 +01:00
Rob Herring
f88321a3bf dt-bindings: Move fixed string 'patternProperties' to 'properties'
There's no need for fixed strings to be under 'patternProperties', so move
them under 'properties' instead.

Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Saravanan Sekar <sravanhome@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: linux-hwmon@vger.kernel.org
Cc: linux-phy@lists.infradead.org
Cc: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210713193514.690894-1-robh@kernel.org
2021-07-15 08:45:33 -06:00
Kunihiko Hayashi
442a9d105e regulator: Convert UniPhier regulator to json-schema
Convert the UniPhier regulator binding to DT schema format.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1624413137-17453-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-15 13:23:24 +01:00
ChiYuan Huang
e98fb03217 regulator: rtq6752: Refine binding document
Drop regulators property reference and remove the status in example dts.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1626229532-13037-1-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-14 13:30:42 +01:00
ChiYuan Huang
526e99cf43 regulator: rtq6752: Add binding document for Richtek RTQ6752
Add binding document for Richtek RTQ6752.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1625845236-30285-1-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-11 23:50:41 +01:00
Ulf Hansson
c9cd752d8f regulator: fixed: Mark regulator-fixed-domain as deprecated
A power domain should not be modelled as a regulator, not even for the
simplest case as recent discussions have concluded around the existing
regulator-fixed-domain DT binding.

Fortunately, there is only one user of the binding that was recently added.
Therefore, let's mark the binding as deprecated to prevent it from being
further used.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20210705133441.11344-1-ulf.hansson@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-07 12:01:30 +01:00
Mark Brown
d1c02a7451 Merge series "regulator: qcom,rpmh-regulator: Add support for pmic available on SA8155p-adp board" from Bhupesh Sharma <bhupesh.sharma@linaro.org>:
Changes since v2:
-----------------
- v2 series can be found here: https://lore.kernel.org/linux-arm-msm/20210615074543.26700-1-bhupesh.sharma@linaro.org/T/#m8303d27d561b30133992da88198abb78ea833e21
- Addressed review comments from Bjorn and Mark.
- As per suggestion from Bjorn, seperated the patches in different
  patchsets (specific to each subsystem) to ease review and patch application.

Changes since v1:
-----------------
- v1 series can be found here: https://lore.kernel.org/linux-arm-msm/20210607113840.15435-1-bhupesh.sharma@linaro.org/T/#mc524fe82798d4c4fb75dd0333318955e0406ad18
- Addressed review comments from Bjorn and Vinod received on the v1
  series.

This series adds the regulator support code for SA8155p-adp board
which is based on Qualcomm snapdragon sa8155p SoC which in turn is
simiar to the sm8150 SoC.

This board supports a new PMIC PMM8155AU.

While at it, also make some cosmetic changes to the regulator driver
and dt-bindings to make sure the compatibles are alphabetical and also
fix issues with extra comma(s) at the end of terminator line(s).

Cc: Mark Brown <broonie@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>

Bhupesh Sharma (5):
  dt-bindings: regulator: qcom,rpmh-regulator: Arrange compatibles
    alphabetically
  dt-bindings: regulator: qcom,rpmh-regulator: Add compatible for
    SA8155p-adp board pmic
  regulator: qcom-rpmh: Cleanup terminator line commas
  regulator: qcom-rpmh: Add terminator at the end of pm7325x_vreg_data[]
    array
  regulator: qcom-rpmh: Add new regulator found on SA8155p adp board

 .../regulator/qcom,rpmh-regulator.yaml        | 17 ++---
 drivers/regulator/qcom-rpmh-regulator.c       | 62 +++++++++++++++----
 2 files changed, 59 insertions(+), 20 deletions(-)

--
2.31.1
2021-06-21 19:31:17 +01:00
Mark Brown
9d598cd737 Merge series "Extend regulator notification support" from Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>:
Extend regulator notification support

This series extends the regulator notification and error flag support.
Initial discussion on the topic can be found here:
https://lore.kernel.org/lkml/6046836e22b8252983f08d5621c35ececb97820d.camel@fi.rohmeurope.com/

In a nutshell - the series adds:

1. WARNING level events/error flags. (Patch 3)
  Current regulator 'ERROR' event notifications for over/under
  voltage, over current and over temperature are used to indicate
  condition where monitored entity is so badly "off" that it actually
  indicates a hardware error which can not be recovered. The most
  typical hanling for that is believed to be a (graceful)
  system-shutdown. Here we add set of 'WARNING' level flags to allow
  sending notifications to consumers before things are 'that badly off'
  so that consumer drivers can implement recovery-actions.
2. Device-tree properties for specifying limit values. (Patches 1, 5)
  Add limits for above mentioned 'ERROR' and 'WARNING' levels (which
  send notifications to consumers) and also for a 'PROTECTION' level
  (which will be used to immediately shut-down the regulator(s) W/O
  informing consumer drivers. Typically implemented by hardware).
  Property parsing is implemented in regulator core which then calls
  callback operations for limit setting from the IC drivers. A
  warning is emitted if protection is requested by device tree but the
  underlying IC does not support configuring requested protection.
3. Helpers which can be registered by IC. (Patch 4)
  Target is to avoid implementing IRQ handling and IRQ storm protection
  in each IC driver. (Many of the ICs implementin these IRQs do not allow
  masking or acking the IRQ but keep the IRQ asserted for the whole
  duration of problem keeping the processor in IRQ handling loop).
4. Emergency poweroff function (refactored out of the thermal_core to
  kernel/reboot.c) which is called if IC fires error IRQs but IC reading
  fails and given retry-count is exceeded. (Patches 2, 4)
  Please note that the mutex in the emergency shutdown was replaced by a
  simple atomic in order to allow call from any context.

The helper was attempted to be done so it could be used to implement
roughly same logic as is used in qcom-labibb regulator. This means
amongst other things a safety shut-down if IC registers are not readable.
Using these shut-down retry counters are optional. The idea is that the
helper could be also used by simpler ICs which do not provide status
register(s) which can be used to check if error is still active.

ICs which do not have such status register can simply omit the 'renable'
callback (and retry-counts etc) - and helper assumes the situation is Ok
and re-enables IRQ after given time period. If problem persists the
handler is ran again and another notification is sent - but at least the
delay allows processor to avoid IRQ loop.

Patch 7 takes this notification support in use at BD9576MUF.
Patch 8 is related to MFD change which is not really related to the RFC
here. It was added to this series in order to avoid potential conflicts.
Patch 9 adds a maintainers entry.

Changelog v10-RESEND:
   - rebased on v5.13-rc4
Changelog v10:
   - rebased on v5.13-rc2
   - Move rdev_*() print macros to the internal.h and use rdev_dbg()
     from irq_helpers.c
   - Export rdev_get_name() and move it from coupler.h to driver.h for
     others to use. (It was already in coupler.h but not exported -
     usage was limited and coupler.h does not sound like optimal place
     as rdev_name is not only used by coupled regulators)
   - Send all regulator notifications from irq_helpers.c at one OR'd
     event for the sake of simplicity. For BD9576 this does not matter
     as it has own IRQ for each event case. Header defining events says
     they may be OR'd.
   - Change WARN() at protection shutdown to pr_emerg as suggested by
     Petr.
Changelog v9:
   - rebases on v5.13-rc1
   - Update thermal documentation
   - Fix regulator notification event number
Changelog v8:
   - split shutdown API adding and thermal core taking it in use to
     own patches.
   - replace the spinlock with atomic when ensuring the emergency
     shutdown is only called once.
Changelog v7:
  general:
   - rebased on v5.12-rc7
   - new patch for refactoring the hw-failure reboot logic out of
     thermal_core.c for others to use.
  notification helpers:
   - fix regulator error_flags query
   - grammar/typos
   - do not BUG() but attempt to shut-down the system
   - use BITS_PER_TYPE()

Changelog v6:
  Add MAINTAINERS entry
  Changes to IRQ notifiers
   - move devm functions to drivers/regulator/devres.c
   - drop irq validity check
   - use devm_add_action_or_reset()
   - fix styling issues
   - fix kerneldocs

Changelog v5:
   - Fix the badly formatted pr_emerg() call.

Changelog v4:
   - rebased on v5.12-rc6
   - dropped RFC
   - fix external FET DT-binding.
   - improve prints for cases when expecting HW failure.
   - styling and typos

Changelog v3:
  Regulator core:
   - Fix dangling pointer access at regulator_irq_helper()
  stpmic1_regulator:
   - fix function prototype (compile error)
  bd9576-regulator:
   - Update over current limits to what was given in new data-sheet
     (REV00K)
   - Allow over-current monitoring without external FET. Set limits to
     values given in data-sheet (REV00K).

Changelog v2:
  Generic:
  - rebase on v5.12-rc2 + BD9576 series
  - Split devm variant of delayed wq to own series
  Regulator framework:
  - Provide non devm variant of IRQ notification helpers
  - shorten dt-property names as suggested by Rob
  - unconditionally call map_event in IRQ handling and require it to be
    populated
  BD9576 regulators:
  - change the FET resistance property to micro-ohms
  - fix voltage computation in OC limit setting
2021-06-21 19:28:42 +01:00
Matti Vaittinen
627793e4ca regulator: bd9576 add FET ON-resistance for OCW
BD9576MUF provides over-current protection and detection. Current is
measured as voltage loss over external FET. Allow specifying FET's on
resistance so current monitoring limits can be converted to voltages.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/e5feb160d7e09f33fff5b88f1928c66a15c6680f.1622628334.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-21 13:08:42 +01:00
Matti Vaittinen
673e851b7d regulator: Add protection limit properties
Support specifying protection/error/warning limits for regulator
over current, over temperature and over/under voltage.

Most of the PMICs support only "protection" feature but few
setups do also support error/warning level indications.

On many ICs most of the protection limits can't actually be set.
But for example the ampere limit for over-current protection on ROHM
BD9576 can be configured - or feature can be completely disabled.

Provide limit setting for all protections/errors for the sake of
the completeness and do that using own properties for all so that
not all users would need to set all levels when only one or few are
supported.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/ae2c6056d5ed1334912d27e736d23c9151065433.1622628333.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-21 13:08:27 +01:00
Sergey Larin
01c5741b82 regulator: Add MAX8893 bindings
Add Maxim MAX8893 PMIC device tree bindings. The example is also
provided.

Signed-off-by: Sergey Larin <cerg2010cerg2010@mail.ru>
Link: https://lore.kernel.org/r/20210618141607.884-2-cerg2010cerg2010@mail.ru
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-21 13:07:45 +01:00
Bhupesh Sharma
66376e1523 regulator: qcom,rpmh-regulator: Add compatible for SA8155p-adp board pmic
Add compatible string for pmm8155au pmic found on
the SA8155p-adp board.

Cc: Mark Brown <broonie@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210617051712.345372-3-bhupesh.sharma@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-21 13:07:29 +01:00
Bhupesh Sharma
85adaac269 regulator: qcom,rpmh-regulator: Arrange compatibles alphabetically
Arrange the compatibles inside qcom-rpmh regulator device tree
bindings alphabetically.

Cc: Mark Brown <broonie@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210617051712.345372-2-bhupesh.sharma@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-21 13:07:28 +01:00