kernel/linux.git/drivers/regulator/Makefile, branch v4.19.16

regulator: add QCOM RPMh regulator driver

2018-08-10T16:30:29+00:00

Add the QCOM RPMh regulator driver to manage PMIC regulators which are controlled via RPMh on some Qualcomm Technologies, Inc. SoCs. RPMh is a hardware block which contains several accelerators which are used to manage various hardware resources that are shared between the processors of the SoC. The final hardware state of a regulator is determined within RPMh by performing max aggregation of the requests made by all of the processors. Add support for PMIC regulator control via the voltage regulator manager (VRM) and oscillator buffer (XOB) RPMh accelerators. VRM supports manipulation of enable state, voltage, and mode. XOB supports manipulation of enable state. Signed-off-by: David Collins Reviewed-by: Douglas Anderson Reviewed-by: Matthias Kaehlcke Signed-off-by: Mark Brown

regulator: bd71837: adobt MFD changes to regulator driver

2018-07-30T13:24:20+00:00

MFD part for bd71837 was changed during the review. Clean regulator part to match changed MFD: - renamed header file => fix include - remove unused platdata as also type definition was removed - Kconfig option for MFD part was changed => fix depends on clause - Rename Kconfig option for regulators As Kconfig option for regulators gets now used (when dependency to MFD is satisfied) change it so that it won't require new change when support for bd71847 is added. Signed-off-by: Matti Vaittinen Signed-off-by: Mark Brown

regulator: uniphier: add regulator driver for UniPhier SoC

2018-07-11T09:30:32+00:00

Initial commit to add support for regulators implemented in UniPhier SoCs. This supports USB VBUS only. Signed-off-by: Kunihiko Hayashi Signed-off-by: Mark Brown

regulator: bd71837: BD71837 PMIC regulator driver

2018-05-30T10:31:22+00:00

Support for controlling the 8 bucks and 7 LDOs the PMIC contains. Signed-off-by: Matti Vaittinen Signed-off-by: Mark Brown

regulator: add support for SY8106A regulator

2018-05-09T09:25:06+00:00

SY8106A is an I2C attached single output regulator made by Silergy Corp, which is used on several Allwinner H3/H5 SBCs to control the power supply of the ARM cores. Add a driver for it. Signed-off-by: Ondrej Jirman [Icenowy: Change commit message, remove enable/disable code, add default ramp_delay, add comment for go bit, add code for fixed mode voltage] Signed-off-by: Icenowy Zheng Reviewed-by: Chen-Yu Tsai Signed-off-by: Mark Brown

regulator: 88pg86x: new i2c dual regulator chip

2018-03-09T13:01:17+00:00

This chip is found on Google Chromecast and Valve Steam Link devices. It provides two DC regulators with I2C voltage control, separate GPIO enable pins and one sleep mode pin. This driver does not expose GPIO functionality, but supports voltage control in 1.0-2.2V range, based on I2C register information given in Chromecast kernel driver by Jisheng Zhang. Cc: Jisheng Zhang Signed-off-by: Alexander Monakov Signed-off-by: Mark Brown

regulator: sc2731: Add regulator driver to support Spreadtrum SC2731 PMIC

2017-12-05T12:35:15+00:00

Add regulator driver for Spreadtrum SC2731 device. It has 17 general purpose LDOs, BUCKs generator and digital output to control regulators. Signed-off-by: Erick Chen Reviewed-by: Baolin Wang Signed-off-by: Mark Brown

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02T10:10:55+00:00

Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

Merge remote-tracking branches 'regulator/topic/rc5t619' and 'regulator/topic/stm32-vref' into regulator-next

2017-09-04T16:45:50+00:00

regulator: Add support for stm32-vrefbuf

2017-08-30T17:28:35+00:00

Add regulator driver for STM32 voltage reference buffer which can be used as voltage reference for ADCs, DACs and external components through dedicated VREF+ pin. Signed-off-by: Fabrice Gasnier Signed-off-by: Mark Brown