mfd: sec: Add support for S2MPU05 PMIC

Add support for Samsung's S2MPU05 PMIC. It's the primary PMIC used by
Exynos7870 devices. It houses regulators (21 LDOs and 5 BUCKs) and a RTC
clock device.

S

mfd: sec: Add support for S2MPU05 PMIC

Add support for Samsung's S2MPU05 PMIC. It's the primary PMIC used by
Exynos7870 devices. It houses regulators (21 LDOs and 5 BUCKs) and a RTC
clock device.

Signed-off-by: Kaustabh Chakraborty <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/20250301-exynos7870-pmic-regulators-v3-2-808d0b47a564@disroot.org
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec-core: Add support for the Samsung s2dos05

S2DOS05 is a panel/touchscreen PMIC, often found in
Samsung phones. We define regulator sub-device for which driver will
be added in subsequent pat

mfd: sec-core: Add support for the Samsung s2dos05

S2DOS05 is a panel/touchscreen PMIC, often found in
Samsung phones. We define regulator sub-device for which driver will
be added in subsequent patch. The device also has ADC for power and
current measurements.

Signed-off-by: Dzmitry Sankouski <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/20240617-starqltechn_integration_upstream-v5-2-ea1109029ba5@gmail.com
Signed-off-by: Lee Jones <[email protected]>

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rtc: s5m: Drop S5M8763 support

The S5M8763 MFD has no device tree compatible, and since board file
support for it was removed, there's no way to use this MFD. After
removing the remaining code for i

rtc: s5m: Drop S5M8763 support

The S5M8763 MFD has no device tree compatible, and since board file
support for it was removed, there's no way to use this MFD. After
removing the remaining code for it from the MFD driver, also remove
support for it in the s5m RTC driver, and all remaining references to
it.

Signed-off-by: David Virag <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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mfd: sec: Remove PMICs without compatibles

The S5M8751 and S5M8763 PMIC chips have no corresponding compatible
values, so since board file support was removed for this driver, there
is no way to spe

mfd: sec: Remove PMICs without compatibles

The S5M8751 and S5M8763 PMIC chips have no corresponding compatible
values, so since board file support was removed for this driver, there
is no way to specify these PMICs as present in boards anymore.
Remove leftovers of these chips since it's dead code.

Signed-off-by: David Virag <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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mfd: sec: Remove unused platform data members

The Samsung PMIC drivers for early chipsets like S5M8767 stored quite a
lot in platform data (struct sec_platform_data). The s5m8767 regulator
driver c

mfd: sec: Remove unused platform data members

The Samsung PMIC drivers for early chipsets like S5M8767 stored quite a
lot in platform data (struct sec_platform_data). The s5m8767 regulator
driver currently references only some of its fields. Newer regulator
drivers (e.g. s2mps11) use even less platform data fields.

Clean up the structure to reduce memory footprint and source code size.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec: Enable wakeup from suspend via devicetree property

Set device wakeup capability from devicetree property (done by drivers
core), instead of always setting it to 0 (because value in platfor

mfd: sec: Enable wakeup from suspend via devicetree property

Set device wakeup capability from devicetree property (done by drivers
core), instead of always setting it to 0 (because value in platform data
is not assigned).

This should not have visible effect on actual resuming from suspend
because the child device - S5M RTC driver - is responsible for waking
up and sets device wakeup unconditionally.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec: Remove unused irq_base in platform data

The 'irq_base' field of platform data structure is not assigned,
therefore its default value of 0 has no impact and can be safely
dropped.

Signed-o

mfd: sec: Remove unused irq_base in platform data

The 'irq_base' field of platform data structure is not assigned,
therefore its default value of 0 has no impact and can be safely
dropped.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec: Remove unused device_type in platform data

The 'device_type' field of platform data structure is not used and can
be safely dropped.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowsk

mfd: sec: Remove unused device_type in platform data

The 'device_type' field of platform data structure is not used and can
be safely dropped.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec: Remove unused cfg_pmic_irq in platform data

The 'cfg_pmic_irq' field of platform data structure is not used and can
be safely dropped.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlow

mfd: sec: Remove unused cfg_pmic_irq in platform data

The 'cfg_pmic_irq' field of platform data structure is not used and can
be safely dropped.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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regulator: s2mps11: Adjust supported buck voltages to real values

The driver was registering buck regulators with unsupported range of
voltages for S2MPS11 devices. Basically it assumed that all 25

regulator: s2mps11: Adjust supported buck voltages to real values

The driver was registering buck regulators with unsupported range of
voltages for S2MPS11 devices. Basically it assumed that all 256 values
are possible for a single 8-bit I2C register controlling buck's voltage.
This is not true, as datasheet describes subset of these which can be
used.

For example for buck[12346] the minimum voltage is 650 mV which
corresponds to register value of 0x8. The driver was however
registering regulator starting at 600 mV, so for a step of 6.25 mV this
gave the same result. However this allowed to try to configure
regulators to unsupported values.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

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mfd: sec-core: Add SPDX license identifiers

Replace GPL v2.0+ license statements with SPDX license identifiers.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <lee.jo

mfd: sec-core: Add SPDX license identifiers

Replace GPL v2.0+ license statements with SPDX license identifiers.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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regulator: s5m8767: Pass descriptor instead of GPIO number

Instead of passing a global GPIO number for the enable GPIO, pass
a descriptor looked up from the device tree node for the
regulator.

This

regulator: s5m8767: Pass descriptor instead of GPIO number

Instead of passing a global GPIO number for the enable GPIO, pass
a descriptor looked up from the device tree node for the
regulator.

This regulator supports passing platform data, but enable/sleep
regulators are looked up from the device tree exclusively, so
we can need not touch other files.

Signed-off-by: Linus Walleij <[email protected]>
Acked-by: Lee Jones <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

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regulator: s2mps11: Set default ramp delay for S2MPS11 LDOs

Driver did not provide default value for ramp delay for LDOs which lead
to warning in dmesg, e.g. on Odroid XU4:

[ 1.486076] vdd_ldo9:

regulator: s2mps11: Set default ramp delay for S2MPS11 LDOs

Driver did not provide default value for ramp delay for LDOs which lead
to warning in dmesg, e.g. on Odroid XU4:

[ 1.486076] vdd_ldo9: ramp_delay not set
[ 1.506875] vddq_mmc2: ramp_delay not set
[ 1.523766] vdd_ldo15: ramp_delay not set
[ 1.544702] vdd_sd: ramp_delay not set

The datasheet for all the S2MPS1x family is inconsistent here and does
not specify unambiguously the value of ramp delay for LDO. It mentions
30 mV/us in one timing diagram but then omits it completely in LDO
regulator characteristics table (it is specified for bucks).

However the vendor kernels for Galaxy S5 and Odroid XU3 use values of 12
mV/us or 24 mV/us.

Without the ramp delay value the consumers do not wait for voltage
settle after changing it. Although the proper value of ramp delay for
LDOs is unknown, it seems safer to use at least some value from
reference kernel than to leave it unset.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

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mfd: sec: Add support for S2MPS15 PMIC

Add support for S2MPS15 PMIC which is similar to S2MPS11 PMIC. The S2MPS15
PMIC supports 27 LDO regulators, 10 buck regulators, RTC, three 32.768KHz
clock outp

mfd: sec: Add support for S2MPS15 PMIC

Add support for S2MPS15 PMIC which is similar to S2MPS11 PMIC. The S2MPS15
PMIC supports 27 LDO regulators, 10 buck regulators, RTC, three 32.768KHz
clock outputs and battery charger. This patch adds initial support for
LDO and buck regulators of S2MPS15 device.

Signed-off-by: Thomas Abraham <[email protected]>
Signed-off-by: Alim Akhtar <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[Alim: Added s2mps15_devs like rtc and clk and related changes]
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec-core: Disable buck voltage reset on watchdog falling edge

The WRSTBI bit (disabled by default but enabled by bootloader), when
set, is responsible for resetting voltages to default values o

mfd: sec-core: Disable buck voltage reset on watchdog falling edge

The WRSTBI bit (disabled by default but enabled by bootloader), when
set, is responsible for resetting voltages to default values of
certain bucks on falling edge of Warm Reset Input pin from AP.

However on some boards (with S2MPS13) the pin is pulled down so any
suspend will effectively trigger the reset of bucks supplying the power
to the little and big cores. In the same time when resuming, these bucks
must provide voltage greater or equal to voltage before suspend to match
the frequency chosen by cpufreq. If voltage (default value of voltage
after reset) is lower than one set by cpufreq before suspend, then
system will hang during resuming.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reported-by: Bartlomiej Zolnierkiewicz <[email protected]>
Tested-by: Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: s2mps11: Add manual shutdown method for Odroid XU3

On Odroid XU3 board (with S2MPS11 PMIC) the PWRHOLD bit in CTRL1
register must be manually set to 0 before initiating power off sequence.

One

mfd: s2mps11: Add manual shutdown method for Odroid XU3

On Odroid XU3 board (with S2MPS11 PMIC) the PWRHOLD bit in CTRL1
register must be manually set to 0 before initiating power off sequence.

One of usual power down methods for Exynos based devices looks like:
1. PWRHOLD pin of PMIC is connected to PSHOLD of Exynos SoC.
2. Exynos holds up this pin during system operation.
3. ACOKB pin of PMIC is pulled up to VBATT and optionally to pin in
other device.
4. When PWRHOLD/PSHOLD goes low, the PMIC will turn off the power if
ACOKB goes high.

On Odroid XU3 family the difference is in (3) - the ACOKB is grounded.
This means that PMIC must manually set PWRHOLD field to low and then
wait for signal from Application Processor (the usual change in
PWRHOLD/PSHOLD pin will actually cut off the power).

The patch adds respective binding allowing Odroid XU3 device to be
powered off.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reported-by: Anand Moon <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec: Cleanup unused RTC fields: ono, WTSR and SMPL

The WTSR (Watchdog Timer Software Reset) and SMPL (Sudden Momentary
Power Loss) were removed from rtc-s5m driver because they were not used.
R

mfd: sec: Cleanup unused RTC fields: ono, WTSR and SMPL

The WTSR (Watchdog Timer Software Reset) and SMPL (Sudden Momentary
Power Loss) were removed from rtc-s5m driver because they were not used.
Remove them (and on/off interrupt) from main MFD driver and header.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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regulator: s2mps11: Add support S2MPS13 regulator device

This patch adds S2MPS13 regulator device to existing S2MPS11 device driver.
The S2MPS13 has just different number of regulators from S2MPS14.

regulator: s2mps11: Add support S2MPS13 regulator device

This patch adds S2MPS13 regulator device to existing S2MPS11 device driver.
The S2MPS13 has just different number of regulators from S2MPS14.
The S2MPS13 regulator device includes LDO[1-40] and BUCK[1-10].

Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Sangbeom Kim <[email protected]>
Acked-by: Mark Brown <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec-core: Add support for S2MPS13 device

This patch adds the support for Samsung S2MPS13 PMIC device to the sec-core MFD
driver. The S2MPS13 is very similar with existing S2MPS14 and includes P

mfd: sec-core: Add support for S2MPS13 device

This patch adds the support for Samsung S2MPS13 PMIC device to the sec-core MFD
driver. The S2MPS13 is very similar with existing S2MPS14 and includes PMIC/
RTC/CLOCK devices.

Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Sangbeom Kim <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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regulator: s2mpxxx: Move regulator min/step voltages in common place

This is a cleanup patch and moves min/step voltages in a common samsung
header file so that they can be used by other s2mpxxx PMI

regulator: s2mpxxx: Move regulator min/step voltages in common place

This is a cleanup patch and moves min/step voltages in a common samsung
header file so that they can be used by other s2mpxxx PMIC drivers. Only
few required macros are added currently and others can be added if needed.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Amit Daniel Kachhap <[email protected]>
Acked-by: Lee Jones <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

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mfd: sec-core: Add support for S2MPU02 device

Add support for Samsung S2MPU02 PMIC device to the MFD sec-core driver.
The S2MPU02 device includes PMIC/RTC/Clock devices.

Signed-off-by: Chanwoo Choi

mfd: sec-core: Add support for S2MPU02 device

Add support for Samsung S2MPU02 PMIC device to the MFD sec-core driver.
The S2MPU02 device includes PMIC/RTC/Clock devices.

Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec-core: Remove duplicated device type from sec_pmic_dev

The device type was stored in sec_pmic_dev state container twice:
- unsigned long type (initialized from of_device_id or i2c_device_id

mfd: sec-core: Remove duplicated device type from sec_pmic_dev

The device type was stored in sec_pmic_dev state container twice:
- unsigned long type (initialized from of_device_id or i2c_device_id)
- int device_type (initialized as above or from board files when there
is no DTS)

The 'type' field was never used outside of probe so it can be safely
removed.

Change also the device_type in sec_pmic_dev and sec_platform_data to
unsigned long to avoid any casts.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: sec-core: Update sec_pmic documentation

Update the documentation for sec_pmic state container structure to
reflect current code.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Si

mfd: sec-core: Update sec_pmic documentation

Update the documentation for sec_pmic state container structure to
reflect current code.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd/rtc: s5m: Do not allocate RTC I2C dummy and regmap for unsupported chipsets

The rtc-s5m driver does not support all of S2M and S5M chipsets
supported by main MFD sec-core driver. For such chipse

mfd/rtc: s5m: Do not allocate RTC I2C dummy and regmap for unsupported chipsets

The rtc-s5m driver does not support all of S2M and S5M chipsets
supported by main MFD sec-core driver. For such chipsets unsupported by
rtc-s5m, the MFD sec-core driver initialized regmap with default config.
This config in such cases wouldn't work at all.

The main MFD sec-core driver shouldn't initialize regmap for child
drivers which is not used by them and even not valid.

Move the allocation of RTC I2C dummy device and initialization of RTC
regmap from main MFD sec-core driver to the rtc-s5m driver. The rtc-s5m
driver will use proper regmap config for supported devices.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Alessandro Zummo <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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mfd: Add support for S2MPA01 device

Add the necessary entries required for S2MPA01 multi-function
device. While at it also convert whitespaces to tabs in core.h.

Signed-off-by: Sachin Kamat <sachin

mfd: Add support for S2MPA01 device

Add the necessary entries required for S2MPA01 multi-function
device. While at it also convert whitespaces to tabs in core.h.

Signed-off-by: Sachin Kamat <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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