src/sys/modules/i2c, branch releng/12.1

MFC r350303: enable ig4_acpi on aarch64

2019-09-16T12:54:44Z

The already-listed APMC0D0F ID belongs to the Ampere eMAG aarch64 platform, but ACPI support was not even built on aarch64. Submitted by: Greg V

MFC r350591, r350971, r351724

2019-09-05T16:37:10Z

r350591: Add a driver for Texas Instruments ADS101x/ADS111x i2c ADC chips. Instances of the device can be configured using hints or FDT data. Interfaces to reconfigure the chip and extract voltage measurements from it are available via sysctl(8). r350971: Fix the driver name in ads111x.4, and hook the manpage up to the build. The driver was originally written with the name ads1115, but at the last minute it got renamed to ads111x to reflect its support for many related chips, but I forgot to update the manpage to match the renaming before committing it all. r351724: Fix the name of the devicetree bindings document file cited in the manpage.

Remove jedec_ts(4)

2018-08-01T08:24:34Z

The jedec_ts(4) driver has been marked as deprecated in stable/11, and is now being removed from -HEAD. Add a notice in UPDATING, and update the few remaining references (regarding jedec_dimm(4)'s compatibility and history) to reflect the fact that jedec_ts(4) is now deleted. Reviewed by: avg Relnotes: yes Differential Revision: https://reviews.freebsd.org/D16537

Add opt_platform.h for several modules that have #ifdef FDT in the source.

2018-04-01T18:22:24Z

Submitted by: Andre Albsmeier

Build the ds1672 driver as a module. Add a detach() to unregister the rtc.

2018-03-06T02:30:34Z

Build iicbus/rtc8583 as a module.

2018-03-04T21:06:21Z

imcsmb(4): Intel integrated Memory Controller (iMC) SMBus controller driver

2018-03-03T01:53:51Z

imcsmb(4) provides smbus(4) support for the SMBus controller functionality in the integrated Memory Controllers (iMCs) embedded in Intel Sandybridge- Xeon, Ivybridge-Xeon, Haswell-Xeon, and Broadwell-Xeon CPUs. Each CPU implements one or more iMCs, depending on the number of cores; each iMC implements two SMBus controllers (iMC-SMBs). *** IMPORTANT NOTE *** Because motherboard firmware or the BMC might try to use the iMC-SMBs for monitoring DIMM temperatures and/or managing an NVDIMM, the driver might need to temporarily disable those functions, or take a hardware interlock, before using the iMC-SMBs. Details on how to do this may vary from board to board, and the procedure may be proprietary. It is strongly suggested that anyone wishing to use this driver contact their motherboard vendor, and modify the driver as described in the manual page and in the driver itself. (For what it's worth, the driver as-is has been tested on various SuperMicro motherboards.) Reviewed by: avg, jhb MFC after: 1 week Relnotes: yes Sponsored by: Panasas Differential Revision: https://reviews.freebsd.org/D14447 Discussed with: avg, ian, jhb Tested by: allanjude (previous version), Panasas

Instead of building ofw_iicbus as a separate module, just compile it in to

2018-02-25T18:26:50Z

the iicbus module for FDT-based systems. The primary motivation for this is that host controller drivers which declare DRIVER_MODULE(ofw_iicbus, thisdriver, etc, etc) now only need a single MODULE_DEPEND(thisdriver, ofw_iicbus) for runtime linking to resolve all the symbols. With ofw_iicbus and iicbus in separate modules, drivers would need to declare a MODULE_DEPEND() on both, because symbol lookup is non-recursive through the dependency chain. Requiring a driver to have MODULE_DEPENDS() on both amounts to requiring the drivers to understand the kobj inheritence details of how ofw_iicbus is implemented, which seems like something they shouldn't have to know (and could even change some day). Also, this is somewhat analogous to how the drivers get built when compiled into the kernel. You don't have to ask for ofw_iicbus separately, it just gets built in along with iicbus when option FDT is in effect.

jedec_dimm(4): report asset info and temperatures for DDR3 and DDR4 DIMMs

2018-02-22T23:18:46Z

A super-set of the functionality of jedec_ts(4). jedec_dimm(4) reports asset information (Part Number, Serial Number) encoded in the "Serial Presence Detect" (SPD) data on JEDEC DDR3 and DDR4 DIMMs. It also calculates and reports the memory capacity of the DIMM, in megabytes. If the DIMM includes a "Thermal Sensor On DIMM" (TSOD), the temperature is also reported. Reviewed by: cem MFC after: 1 week Relnotes: yes Sponsored by: Panasas Differential Revision: https://reviews.freebsd.org/D14392 Discussed with: avg, cem Tested by: avg, cem (previous version, no semantic changes)

Build ofw_iicbus as a module if OPT_FDT is defined.

2018-02-19T00:47:03Z