regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27T00:32:50Z

These drivers don't use the driver_data member of struct i2c_device_id, so don't explicitly initialize this member. This prepares putting driver_data in an anonymous union which requires either no initialization or named designators. But it's also a nice cleanup on its own. While add it, also remove commas after the sentinel entries. Signed-off-by: Uwe Kleine-König Link: https://msgid.link/r/20240513080525.2353168-2-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown

regulator: Switch i2c drivers back to use .probe()

2023-05-07T23:50:11Z

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("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

regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in 4.14

2023-03-20T13:11:25Z

Probing of regulators can be a slow operation and can contribute to slower boot times. This is especially true if a regulator is turned on at probe time (with regulator-boot-on or regulator-always-on) and the regulator requires delays (off-on-time, ramp time, etc). While the overall kernel is not ready to switch to async probe by default, as per the discussion on the mailing lists [1] it is believed that the regulator subsystem is in good shape and we can move regulator drivers over wholesale. There is no way to just magically opt in all regulators (regulators are just normal drivers like platform_driver), so we set PROBE_PREFER_ASYNCHRONOUS for all regulators found in 'drivers/regulator' individually. Given the number of drivers touched and the impossibility to test this ahead of time, it wouldn't be shocking at all if this caused a regression for someone. If there is a regression caused by this patch, it's likely to be one of the cases talked about in [1]. As a "quick fix", drivers involved in the regression could be fixed by changing them to PROBE_FORCE_SYNCHRONOUS. That being said, the correct fix would be to directly fix the problem that caused the issue with async probe. The approach here follows a similar approach that was used for the mmc subsystem several years ago [2]. In fact, I ran nearly the same python script to auto-generate the changes. The only thing I changed was to search for "i2c_driver", "spmi_driver", and "spi_driver" in addition to "platform_driver". [1] https://lore.kernel.org/r/06db017f-e985-4434-8d1d-02ca2100cca0@sirena.org.uk [2] https://lore.kernel.org/r/20200903232441.2694866-1-dianders@chromium.org/ Signed-off-by: Douglas Anderson Link: https://lore.kernel.org/r/20230316125351.1.I2a4677392a38db5758dee0788b2cea5872562a82@changeid Signed-off-by: Mark Brown

regulator: Convert i2c drivers to use .probe_new

2020-01-13T15:03:06Z

Use the new .probe_new for i2c drivers. These drivers do not use const struct i2c_device_id * argument, so convert them to utilise the simplified i2c driver registration. Signed-off-by: Axel Lin Link: https://lore.kernel.org/r/20200109155808.22003-1-axel.lin@ingics.com Signed-off-by: Mark Brown

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

regulator: lp3971: Constify lp3971_ldo_ops and lp3971_dcdc_ops

2019-01-28T12:18:11Z

Signed-off-by: Axel Lin Signed-off-by: Mark Brown

regulator: lp3971: Silence uninitialized variable warning

2016-04-14T13:46:05Z

This is harmless but if lp3971_i2c_read() fails then "tmp" can be uninitialized. Silence the warning by moving the error handling up a line. Signed-off-by: Dan Carpenter Signed-off-by: Mark Brown

regulator: drivers: Drop owner assignment from i2c_driver

2015-07-14T17:53:01Z

i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Mark Brown

regulator: lp3971: Do not hardcode return value

2014-02-19T16:28:12Z

Propagate the error value returned by the function instead. Signed-off-by: Sachin Kamat Signed-off-by: Mark Brown

regulator: lp3971: Convert to devm_regulator_register

2013-11-13T13:24:44Z

Both num_regulators and **rdev are no longer required after this conversion, thus remove them from struct lp3971. Signed-off-by: Axel Lin Signed-off-by: Mark Brown

kernel/drivers/regulator/lp3971.c, branch linux-6.18.y