linux-stable.git/include/linux/power, branch master

power: supply: max17042_battery: Follow MAX17055 POR sequence

2026-07-27T18:32:38+00:00

Wait until the MAX17055 is ready, leave hibernate around EZ Config,
and wait for ModelCfg.Refresh to clear as required by the power-on reset
initialization flow.

Restore HibCfg on every exit path. Keep failed restoration state so a
retry restores hibernate before starting a new initialization transaction.

Assisted-by: OpenCode:gpt-5.6-sol
Signed-off-by: Vincent Cloutier 
Link: https://patch.msgid.link/20260727011319.621794-9-vincent.cloutier@icloud.com
Signed-off-by: Sebastian Reichel

power: supply: max17042_battery: Program MAX17055 EZ Config values

2026-07-27T18:32:38+00:00

MAX17055 EZ Config requires DesignCap, dQAcc, IChgTerm, and dPAcc to
be programmed coherently. Write each supplied stable register once, wait
1 ms, and verify its read-back instead of relying on the unchecked generic
POR override path.

Derive dPAcc from the effective DesignCap, dQAcc, and ModelCfg values so
the accumulator matches the selected charge-voltage range. Propagate all
read, write, verification, and range errors to the retrying init worker.

Assisted-by: OpenCode:gpt-5.6-sol
Signed-off-by: Vincent Cloutier 
Link: https://patch.msgid.link/20260727011319.621794-8-vincent.cloutier@icloud.com
Signed-off-by: Sebastian Reichel

power: supply: Remove unused jz4740-battery.h

2026-06-03T21:13:32+00:00

The last user was removed in commit aea12071d6fc
("power/supply: Drop obsolete JZ4740 driver") and replaced by
a self-contained IIO-based driver. No file includes this header.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin 
Link: https://patch.msgid.link/20260515185043.1523363-1-costa.shul@redhat.com
Signed-off-by: Sebastian Reichel

power: supply: max17042_battery: use ModelCfg refresh on max17055

2026-06-03T19:56:01+00:00

Unlike other models, max17055 doesn't require cell characterization data
and operates on a smaller set of input variables (`DesignCap`, `VEmpty`,
`IChgTerm`, and `ModelCfg`). Those values can be filled in through
`max17042_override_por_values()`, but the refresh bit has to be set
afterward in order to make them apply.

Signed-off-by: Sebastian Krzyszkowiak 
Signed-off-by: Vincent Cloutier 
Link: https://patch.msgid.link/20260406205759.493288-8-vincent.cloutier@icloud.com
Signed-off-by: Sebastian Reichel

power: supply: max17042_battery: Remove unused platform-data plumbing

2026-06-03T19:43:54+00:00

No in-tree user still provides `max17042_platform_data` or
`max17042_reg_data`. Move the simple runtime fields into
`struct max17042_chip`, populate them directly from DT or the default
hardware state, and drop the unused public platform-data interface.

While here, write the MAX17047/MAX17050 default `FullSOCThr` value
directly in probe instead of carrying it through an `init_data` table.

Signed-off-by: Vincent Cloutier 
Link: https://patch.msgid.link/20260406205759.493288-7-vincent.cloutier@icloud.com
Signed-off-by: Sebastian Reichel

power: supply: max17042: consider task period (max77759)

2026-03-03T22:58:07+00:00

Several (register) values reported by the fuel gauge depend on its
internal task period and it needs to be taken into account when
calculating results. All relevant example formulas in the data sheet
assume the default task period (of 5760) and final results need to be
adjusted based on the task period in effect.

Update the code as and where necessary.

Reviewed-by: Peter Griffin 
Signed-off-by: André Draszik 
Link: https://patch.msgid.link/20260302-max77759-fg-v3-10-3c5f01dbda23@linaro.org
Signed-off-by: Sebastian Reichel

power: supply: max17042: initial support for Maxim MAX77759

2026-03-03T22:58:07+00:00

The Maxim MAX77759 is a companion PMIC intended for use in mobile
phones and tablets. It is used on Google Pixel 6 and 6 Pro (oriole and
raven). Amongst others, it contains a fuel gauge that is similar to the
ones supported by this driver.

The fuel gauge can measure battery charge and discharge current,
battery voltage, battery temperature, and the Type C connector's
temperature.

The MAX77759 incorporates the Maxim ModelGauge m5 algorithm. It, as
well as previous generations like m3 on max17047/max17050, requires
the host to save/restore some register values across power cycles to
maintain full accuracy. Extending the driver for such support is out of
scope in this initial commit.

Reviewed-by: Peter Griffin 
Signed-off-by: André Draszik 
Link: https://patch.msgid.link/20260302-max77759-fg-v3-9-3c5f01dbda23@linaro.org
Signed-off-by: Sebastian Reichel

power: supply: max77705_charger: implement aicl feature

2025-11-02T23:02:30+00:00

Adaptive input current allows charger to reduce it's current
consumption, when source is not able to provide enough power.

Signed-off-by: Dzmitry Sankouski 
Link: https://patch.msgid.link/20250925-max77705_77976_charger_improvement-v6-1-972c716c17d1@gmail.com
Signed-off-by: Sebastian Reichel

power: supply: max77705_charger: use REGMAP_IRQ_REG_LINE macro

2025-09-18T22:40:03+00:00

Refactor regmap_irq declarations with REGMAP_IRQ_REG_LINE saves a few
lines on definitions.

Signed-off-by: Dzmitry Sankouski 
Signed-off-by: Sebastian Reichel

power: supply: max77705_charger: use regfields for config registers

2025-09-18T22:37:45+00:00

Using regfields allows to cleanup masks and register offset definition,
allowing to access register info by it's functional name.

Signed-off-by: Dzmitry Sankouski 
Signed-off-by: Sebastian Reichel