kernel.git/drivers/regulator/ltc3676.c, branch linux-4.18.y

regulator: ltc3676: Assure PGOOD mask is set before changing voltage

2018-05-01T21:00:20Z

Make sure the DVBxB bit 5, PGOOD mask, is set before changing voltage on the buck converters. If the PGOOD mask bit is not set, the PMIC may deassert the PGOOD signal during the voltage transition. On systems that use the PGOOD signal as a power OK indication for the board or SoC, which should be the case on correct designs, deasserting the PGOOD signal will lead to system reset or shutdown, which is not the expected behavior when changing PMIC buck converter voltage. Signed-off-by: Marek Vasut Signed-off-by: Mark Brown

regulator: ltc3676: Add OF device ID table

2017-02-21T18:30:56Z

The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown

regulator: ltc3676: constify regulator_ops structure

2017-01-31T20:48:35Z

Declare regulator_ops structure as const as it is only stored in the ops field of a regulator_desc structure. This field is of type const, so regulator_ops structures having this property can be made const too. File size before: drivers/regulator/ltc3676.o text data bss dec hex filename 2369 2808 288 5465 1559 drivers/regulator/ltc3676.o File size after: drivers/regulator/ltc3676.o text data bss dec hex filename 3145 2296 8 5449 1549 drivers/regulator/ltc3676.o Signed-off-by: Bhumika Goyal Signed-off-by: Mark Brown

regulator: Add LTC3676 support

2016-08-16T11:28:00Z

This patch adds support for the Linear Technology LTC3676 8-output I2C voltage regulator IC. Cc: Jaffer Kapasi Signed-off-by: Tim Harvey Signed-off-by: Mark Brown