kernel/linux.git/include/linux/power, branch v6.12.80

power: supply: bq27xxx: Move health reading out of update loop

2024-04-01T10:29:44+00:00

Most of the functions that read values return a status and put the value itself in an a function parameter. Update health reading to match. As health is not checked for changes as part of the update loop, remove the read of this from the periodic update loop. This saves I2C/1W bandwidth. It also means we do not have to cache it, fresh values are read when requested. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240325203129.150030-6-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Move cycle count reading out of update loop

2024-04-01T10:29:44+00:00

Most of the functions that read values return a status and put the value itself in an a function parameter. Update cycle count reading to match. As cycle count is not checked for changes as part of the update loop, remove the read of this from the periodic update loop. This saves I2C/1W bandwidth. It also means we do not have to cache it, fresh values are read when requested. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240325203129.150030-5-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Move energy reading out of update loop

2024-04-01T10:29:44+00:00

Most of the functions that read values return a status and put the value itself in an a function parameter. Update energy reading to match. As energy is not checked for changes as part of the update loop, remove the read of this from the periodic update loop. This saves I2C/1W bandwidth. It also means we do not have to cache it, fresh values are read when requested. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240325203129.150030-4-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Move charge reading out of update loop

2024-04-01T10:29:44+00:00

Most of the functions that read values return a status and put the value itself in an a function parameter. Update charge reading to match. As charge state is not checked for changes as part of the update loop, remove the read of this from the periodic update loop. This saves I2C/1W bandwidth. It also means we do not have to cache it, fresh values are read when requested. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240325203129.150030-3-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Move time reading out of update loop

2024-04-01T10:29:44+00:00

Most of the functions that read values return a status and put the value itself in an a function parameter. Update time reading to match. As time is not checked for changes as part of the update loop, remove the read of the this from the periodic update loop. This saves I2C/1W bandwidth. It also means we do not have to cache it, fresh values are read when requested. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240325203129.150030-2-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Move temperature reading out of update loop

2024-04-01T10:29:44+00:00

Most of the functions that read values return a status and put the value itself in an a function parameter. Update temperature reading to match. As temp is not checked for changes as part of the update loop, remove the read of the temperature from the periodic update loop. This saves I2C/1W bandwidth. It also means we do not have to cache it, fresh values are read when requested. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240325203129.150030-1-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Add devm action to free IDA

2024-01-26T23:49:17+00:00

Use a device lifecycle managed action to free the IDA. This helps prevent mistakes like freeing out of order in cleanup functions and forgetting to free on error paths. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240123150914.308510-2-afd@ti.com Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Stop and start delayed work in suspend and resume

2023-11-15T22:13:26+00:00

This driver uses delayed work to perform periodic battery state read out. This delayed work is not stopped across suspend and resume cycle. The read out can occur early in the resume cycle. In case of an I2C variant of this hardware, that read out triggers I2C transfer. That I2C transfer may happen while the I2C controller is still suspended, which produces a WARNING in the kernel log. Fix this by introducing trivial PM ops, which stop the delayed work before the system enters suspend, and schedule the delayed work right after the system resumes. Signed-off-by: Marek Vasut Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20231104154920.68585-1-marex@denx.de Signed-off-by: Sebastian Reichel

power: reset: at91-reset: add sysfs interface to the power on reason

2023-07-19T21:15:21+00:00

Introduce a list of generic reset sources and use them to export the power on reason through sysfs. Update the ABI documentation to describe this new interface. Signed-off-by: Kamel Bouhara Acked-by: Nicolas Ferre [Miquel Raynal: Follow-up on Kamel's work, 4 years later] Signed-off-by: Miquel Raynal Signed-off-by: Sebastian Reichel

power: supply: bq27xxx: Ensure power_supply_changed() is called on current sign changes

2023-05-08T13:29:12+00:00

On gauges where the current register is signed, there is no charging flag in the flags register. So only checking flags will not result in power_supply_changed() getting called when e.g. a charger is plugged in and the current sign changes from negative (discharging) to positive (charging). This causes userspace's notion of the status to lag until userspace does a poll. And when a power_supply_leds.c LED trigger is used to indicate charging status with a LED, this LED will lag until the capacity percentage changes, which may take many minutes (because the LED trigger only is updated on power_supply_changed() calls). Fix this by calling bq27xxx_battery_current_and_status() on gauges with a signed current register and checking if the status has changed. Fixes: 297a533b3e62 ("bq27x00: Cache battery registers") Signed-off-by: Hans de Goede Signed-off-by: Sebastian Reichel