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4 Commits

Author SHA1 Message Date
Jerome Neanne
3df4c63675 mfd: tps65219: Add support for soft shutdown via sys-off API 
Use new API for power-off mode support:
Link: https://lwn.net/Articles/894511/
Link: https://lore.kernel.org/all/7hfseqa7l0.fsf@baylibre.com/

sys-off API allows support of shutdown handler and restart handler.

Shutdown was not supported before that enhancement.
This is required for platform that are not using PSCI.

Test:
- restart:
  # reboot
  Default is cold reset:
  # cat /sys/kernel/reboot/mode
  Switch boot mode to warm reset:
  # echo warm > /sys/kernel/reboot/mode
- power-off:
  # halt

Tested on AM62-LP-SK board.

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Suggested-by: Andrew Davis <afd@ti.com>
Reviewed-by: Andrew Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230608071947.3467751-1-jneanne@baylibre.com
 2023-06-15 09:19:38 +01:00
Jerome Neanne
29e92d8ea8 mfd: tps65219: Add GPIO cell instance 
TPS65219 PMIC GPIOs are exposed in a standard way:

  gpiodetect
  gpiochip0 [tps65219-gpio] (3 lines)

tps65219-gpios is incorrect cell name (plural).  Changed to
tps65219-gpio (singular)

Co-developed-by: Jonathan Cormier <jcormier@criticallink.com>
Signed-off-by: Jonathan Cormier <jcormier@criticallink.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230511-tps65219-add-gpio-support-v5-2-ebb94281c854@baylibre.com
 2023-06-15 09:19:38 +01:00
Uwe Kleine-König
9816d85923 mfd: Switch i2c drivers back to use .probe() 
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230515182752.10050-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2023-06-15 09:19:37 +01:00
Jerome Neanne
74c17a0a49 mfd: tps65219: Add driver for TI TPS65219 PMIC 
The TPS65219 is a power management IC PMIC designed to supply a wide
range of SoCs in both portable and stationary applications. Any SoC can
control TPS65219 over a standard I2C interface.

It contains the following components:
- Regulators.
- Over Temperature warning and Shut down.
- GPIOs
- Multi Function Pins (MFP)
- power-button

This patch adds support for tps65219 PMIC. At this time only
the functionalities listed below are made available:

- Regulators probe and functionalities
- warm and cold reset support
- SW shutdown support
- Regulator warnings via IRQs
- Power-button via IRQ

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20221104152311.1098603-5-jneanne@baylibre.com
 2022-12-07 13:28:15 +00:00