Changes in Makefile

d0f8e978 - i2c: muxes: add support for tsd,mule-i2c multiplexer

Fri, 06 Sep 2024 15:54:13 +0000

i2c: muxes: add support for tsd,mule-i2c multiplexerTheobroma Systems Mule is an MCU that emulates a set of I2C devices,among which an amc6821 and devices that are reachable through an I2C-mux.The devices on the mux can be selected by writing the appropriate devicenumber to an I2C config register (amc6821 reg 0xff).This driver is expected to be probed as a platform device with amc6821as its parent i2c device.Add support for the mule-i2c-mux platform driver. The amc6821 driversupport for the mux will be added in a later commit.Reviewed-by: Wolfram Sang Signed-off-by: Farouk Bouabid Signed-off-by: Andi Shyti List of files: /linux-6.15/drivers/i2c/muxes/Makefile

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense 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 bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe 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 caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase 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 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately 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 licenseidentifiers 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 thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion 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 correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/i2c/muxes/Makefile

ac8498f0 - i2c: i2c-mux-gpmux: new driver

Sun, 14 May 2017 19:51:12 +0000

i2c: i2c-mux-gpmux: new driverThis is a general purpose i2c mux that uses a multiplexer controlled bythe multiplexer subsystem to do the muxing.The user can select if the mux is to be mux-locked and parent-lockedas described in Documentation/i2c/i2c-topology.Acked-by: Jonathan Cameron Acked-by: Wolfram Sang Signed-off-by: Peter Rosin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/i2c/muxes/Makefile

dbed8a80 - i2c: mux: ltc4306: LTC4306 and LTC4305 I2C multiplexer/switch

Tue, 11 Apr 2017 12:16:16 +0000

i2c: mux: ltc4306: LTC4306 and LTC4305 I2C multiplexer/switchThis patch adds support for the Analog Devices / Linear TechnologyLTC4306 and LTC4305 4/2 Channel I2C Bus Multiplexer/Switches.The LTC4306 optionally provides two general purpose input/output pins(GPIOs) that can be configured as logic inputs, opendrain outputs orpush-pull outputs via the generic GPIOLIB framework.Signed-off-by: Michael Hennerich Reviewed-by: Linus Walleij Signed-off-by: Peter Rosin List of files: /linux-6.15/drivers/i2c/muxes/Makefile

c02b7bf5 - i2c: mux: mellanox: add driver

Thu, 10 Nov 2016 21:26:23 +0000

i2c: mux: mellanox: add driverThis driver allows I2C routing controlled through CPLD select registers ona wide range of Mellanox systems (CPLD Lattice device).MUX selection is provided by digital and analog HW. Analog part is notunder SW control.Digital part is under CPLD control (channel selection/de-selection).Connectivity schema..---. .-------------.| l | | |-- i2cx1 -- i2cx8| i |-- i2cn --+--| mlxcpld mux || n | | | |-- i2cy1 -- i2cy8| u | | '-------------'| x | | |'---' '---------'i2c-mux-mlxpcld does not necessarily require i2c-mlxcpld. It can be usedalong with another bus driver, and still control i2c routing through CPLDmux selection, in case the system is equipped with CPLD capable of muxselection control.The Kconfig currently controlling compilation of this code is:drivers/i2c/muxes/Kconfig:config I2C_MUX_MLXCPLDSigned-off-by: Michael Shych Signed-off-by: Vadim Pasternak Reviewed-by: Jiri Pirko Acked-by: Peter Rosin Signed-off-by: Wolfram Sang List of files: /linux-6.15/drivers/i2c/muxes/Makefile

50a5ba87 - i2c: mux: demux-pinctrl: add driver

Wed, 13 Jan 2016 14:29:27 +0000

i2c: mux: demux-pinctrl: add driverThis driver allows an I2C bus to switch between multiple masters. Thisis not hot-switching because connected I2C slaves will bere-instantiated. It is meant to select the best I2C core at runtime oncethe task is known. Example: Prefer i2c-gpio over another I2C corebecause of HW errata affecting your use case.Signed-off-by: Wolfram Sang Acked-by: Rob Herring Signed-off-by: Wolfram Sang List of files: /linux-6.15/drivers/i2c/muxes/Makefile

b3fdd327 - i2c: mux: Add register-based mux i2c-mux-reg

Mon, 17 Aug 2015 18:53:48 +0000

i2c: mux: Add register-based mux i2c-mux-regBased on i2c-mux-gpio driver, similarly the register-based muxswitch from one bus to another by setting a single register.The register can be on PCIe bus, local bus, or any memory-mappedaddress. The endianness of such register can be specified in devicetree if used, or in platform data.Signed-off-by: York Sun Acked-by: Alexander Sverdlin Signed-off-by: Wolfram Sang List of files: /linux-6.15/drivers/i2c/muxes/Makefile

b81dfaa0 - i2c: mux: Add i2c-arb-gpio-challenge 'mux' driver

Tue, 16 Apr 2013 06:29:00 +0000

i2c: mux: Add i2c-arb-gpio-challenge 'mux' driverThe i2c-arb-gpio-challenge driver implements an I2C arbitration schemewhere masters need to claim the bus with a GPIO before they can starta transaction. This should generally only be used when standard I2Cmultimaster isn't appropriate for some reason (errata/bugs).This driver is based on code that Simon Glass added to the i2c-s3c2410driver in the Chrome OS kernel 3.4 tree. The current incarnation as amux driver is as suggested by Grant Likely. See for some history.Signed-off-by: Doug Anderson Signed-off-by: Simon Glass Signed-off-by: Naveen Krishna Chatradhi Reviewed-by: Stephen Warren Acked-by: Olof Johansson Signed-off-by: Wolfram Sang List of files: /linux-6.15/drivers/i2c/muxes/Makefile

ae58d1e4 - i2c: Add generic I2C multiplexer using pinctrl API

Fri, 18 May 2012 15:29:34 +0000

i2c: Add generic I2C multiplexer using pinctrl APIThis is useful for SoCs whose I2C module's signals can be routed todifferent sets of pins at run-time, using the pinctrl API. +-----+ +-----+ | dev | | dev | +------------------------+ +-----+ +-----+ | SoC | | | | /----|------+--------+ | +---+ +------+ | child bus A, on first set of pins | |I2C|---|Pinmux| | | +---+ +------+ | child bus B, on second set of pins | \----|------+--------+--------+ | | | | | +------------------------+ +-----+ +-----+ +-----+ | dev | | dev | | dev | +-----+ +-----+ +-----+Signed-off-by: Stephen Warren Acked-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Wolfram Sang List of files: /linux-6.15/drivers/i2c/muxes/Makefile

e7065e20 - i2c: Rename last mux driver to standard pattern

Sat, 28 Apr 2012 13:32:06 +0000

i2c: Rename last mux driver to standard patternUpdate the MAINTAINERS entry and all other references accordingly.Based on an original patch by Wolfram Sang.Signed-off-by: Jean Delvare Acked-by: Peter Korsgaard [wsa: fixed merge conflict due to rework in i2c_add_mux_adapter()]Signed-off-by: Wolfram Sang List of files: /linux-6.15/drivers/i2c/muxes/Makefile

b4f0b74e - i2c: muxes: rename first set of drivers to a standard pattern

Wed, 25 Apr 2012 20:29:43 +0000

i2c: muxes: rename first set of drivers to a standard patternApply a naming pattern like in the rest of the subsystem to a first setof mux drivers. Those drivers are the low-hanging fruit; we want to pickthem to motivate upcoming drivers to follow the new pattern. The missingGPIO driver will be converted in a later patch.Signed-off-by: Wolfram Sang Acked-by: Guenter Roeck (pca9541)Acked-by: Jean Delvare List of files: /linux-6.15/drivers/i2c/muxes/Makefile

92ed1a76 - i2c: Add generic I2C multiplexer using GPIO API

Mon, 10 Jan 2011 21:11:23 +0000

i2c: Add generic I2C multiplexer using GPIO APIAdd an i2c mux driver providing access to i2c bus segments using ahardware MUX sitting on a master bus and controlled through gpio pins.E.G. something like: ---------- ---------- Bus segment 1 - - - - - | | SCL/SDA | |-------------- | | | |------------| | | | | | Bus segment 2 | | | Linux | GPIO 1..N | MUX |--------------- Devices | |------------| | | | | | | | Bus segment M | | | |---------------| | ---------- ---------- - - - - -SCL/SDA of the master I2C bus is multiplexed to bus segment 1..Maccording to the settings of the GPIO pins 1..N.Signed-off-by: Peter Korsgaard Signed-off-by: Jean Delvare List of files: /linux-6.15/drivers/i2c/muxes/Makefile

ae63b13b - i2c/mux: Driver for PCA9541 I2C Master Selector

Sun, 24 Oct 2010 16:16:58 +0000

i2c/mux: Driver for PCA9541 I2C Master SelectorThis patch adds support for PCA9541, an I2C Bus Master Selector.The driver is modeled as single channel I2C Multiplexer to be able to utilizethe I2C multiplexer framework.Signed-off-by: Guenter Roeck Reviewed-by: Tom Grennan Acked-by: Jean Delvare List of files: /linux-6.15/drivers/i2c/muxes/Makefile

ef9d9b8f - i2c: Change to new flag variable

Sun, 24 Oct 2010 16:16:58 +0000

i2c: Change to new flag variableReplace EXTRA_CFLAGS with ccflags-y.Signed-off-by: matt mooney Signed-off-by: Jean Delvare List of files: /linux-6.15/drivers/i2c/muxes/Makefile

7f528135 - i2c: I2C bus multiplexer driver pca954x

Wed, 11 Aug 2010 16:21:03 +0000

i2c: I2C bus multiplexer driver pca954xI2C driver for PCA954x I2C multiplexer series.Signed-off-by: Michael Lawnick Acked-by: Rodolfo Giometti Signed-off-by: Jean Delvare List of files: /linux-6.15/drivers/i2c/muxes/Makefile