Changes in nctgpio.c

c063fb7accae4cbe5e0fb808a1382600dc1b4249 - gpio: remove gpiobus_attach_bus

Wed, 13 Aug 2025 13:14:00 +0200

gpio: remove gpiobus_attach_busSince gpiobus_attach_bus can attach the gpiobus child along with itschildren in the same bus pass, the parent controller's reference togpiobus might not be set by the time the children need it. Instead,drivers should use gpiobus_add_bus and explicitly callbus_attach_children.Reviewed by: mmel, imp (older version)Approved by: imp (mentor)Differential Revision: https://reviews.freebsd.org/D51578 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

95ee2897e98f5d444f26ed2334cc7c439f9c16c6 - sys: Remove $FreeBSD$: two-line .h pattern

Wed, 16 Aug 2023 19:54:11 +0200

sys: Remove $FreeBSD$: two-line .h patternRemove /^\s*\*\n \*\s+\$FreeBSD\$$\n/ List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

8e4aa6317eb8145a8a9f6a61e235d13302cd13e3 - nctgpio: Enable all the 9 groups for NCT6116D and remove FIXMEs

Tue, 04 Jul 2023 15:57:08 +0200

nctgpio: Enable all the 9 groups for NCT6116D and remove FIXMEsReviewed by: emastePull Request: https://github.com/freebsd/freebsd-src/pull/810 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

f03a7e52769e7d5cf706021d4b21953e5bd945a4 - nctgpio: Populate the cache earlier

Sat, 01 Jul 2023 19:19:44 +0200

nctgpio: Populate the cache earlierReviewed by: impPull Request: https://github.com/freebsd/freebsd-src/pull/719 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

8e6ea10c31220b5f56dbd966a0ee7163d46d30d1 - superio+nctgpio: Add support for new (weird) chips

Sat, 01 Jul 2023 19:19:44 +0200

superio+nctgpio: Add support for new (weird) chipsAdd support for the following chips:- Nuvoton NCT5585D- Nuvoton NCT6796D-E- Nuvoton NCT6779- Nuvoton NCT6116D- and Winbond 83627DHGReviewed by: impPull Request: https://github.com/freebsd/freebsd-src/pull/719 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

7f8d2ed03bc670393d7a8322b0681f46ead745e7 - superio+nctgpio: Prepare to support some new (weird) chips

Sat, 01 Jul 2023 19:19:44 +0200

superio+nctgpio: Prepare to support some new (weird) chips- Increase verbosity to direct i/o code path (iores != 0)- Fix pin inversion configuration- Allow forcing the use of indirect access channel via hint.gpio.0.flags=2- Document the PREFER_INDIRECT_CHANNEL tunable in nctgpio(4)Reviewed by: impPull Request: https://github.com/freebsd/freebsd-src/pull/719 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

84c5f982effaf49a91a2f3e5a8fd4f56bdf4f3b3 - gpio: Remove unused devclass arguments to DRIVER_MODULE.

Mon, 09 May 2022 21:22:01 +0200

gpio: Remove unused devclass arguments to DRIVER_MODULE. List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

155514eacf0efd907f1ce2d1fd961964968868b4 - nctgpio: improve performance (latency) of operation

Tue, 22 Oct 2019 16:20:35 +0200

nctgpio: improve performance (latency) of operationThis change consists of two parts.First, nctgpio now supports hardware access via an I/O port window ifit's configured by firmware. For instance, PC Engines firmwarev4.10.0.2 does that. This is faster than going through the Super I/Oconfiguration registers.Second, nctgpio now caches values of bits that it controls. Forexample, the driver does not need to access the hardware to determine ifa pin is an output or an input, or a state of an output. Also, thedriver makes use of the fact that the hardware preserves an output stateof a pin accross a switch to the input mode and back.With this change I am able to use the 1-Wire bus over nctgpio whereaspreviously the driver introduced too much latency to be compliant withthe relatively strict protocol timings.superio0: at port 0x2e-0x2f on isa0gpio1: at GPIO ldn 0x07 on superio0pcib0: allocated type 4 (0x220-0x226) for rid 0 of gpio1gpiobus1: on gpio1owc0: at pin 4 on gpiobus1ow0: <1 Wire Bus> on owc0ow0: romid 28:b2:9e:45:92:10:02:34: no driverow_temp0: romid 28:b2:9e:45:92:10:02:34 on ow0MFC after: 4 weeks List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

e3df342a32debf2cc8bdc20582afd8adeec35775 - move nctgpio to superio(4) bus

Wed, 16 Oct 2019 16:42:49 +0200

move nctgpio to superio(4) busThis is where it logically belongs.The change allows to drop a bunch of low lewel code.Reviewed by: gonzoMFC after: 19 daysDifferential Revision: https://reviews.freebsd.org/D21980 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

a63915c2d7ff177ce364488f86eff99949402051 - MFHead @r350386

Sun, 28 Jul 2019 06:02:22 +0200

MFHead @r350386Sponsored by: The FreeBSD Foundation List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

02226256082badea2d76ff0b467c9cce3da47531 - nctgpio: change default pin names to those used by the datasheet(s)

Mon, 01 Jul 2019 17:43:48 +0200

nctgpio: change default pin names to those used by the datasheet(s)That is, instead of the current GPIO00 - GPIO15 the names will be GPIO00- GPIO07, GPIO10 - GPIO17. The first digit is a GPIO "bank" / groupnumber and the second one is a pin number within the bank. Alternativeview is that the pin names are changed from decimal numbering scheme tooctal one (as there are 8 pins per bank).Discussed with: cem, gonzoMFC after: 2 weeks List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

4b49587c3dd54aed8eb103d838a89ca79484a9b6 - Merge ^/head r327341 through r327623.

Sat, 06 Jan 2018 17:13:17 +0100

Merge ^/head r327341 through r327623. List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

9d1208bbd27ed9c7b3fd10247e48e5df70d9cbda - nctgpio: add new device id for the GPIO chip in PCEngines APU3

Tue, 02 Jan 2018 21:58:05 +0100

nctgpio: add new device id for the GPIO chip in PCEngines APU3PR: 224512Submitted by: mike@sentex.netMFC after: 2 weeks List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

523af57ea24624de9430a0bf980b515ba7148b53 - nctgpio(4): Don't index past the end of sc->pins array

Wed, 20 Apr 2016 03:17:18 +0200

nctgpio(4): Don't index past the end of sc->pins arrayThis driver thinks that the NCT_MAX_PIN index is a valid index in a few places(nct_attach() for-loop, as well as NCT_IS_VALID_PIN()). Allocate room forNCT_MAX_PIN as an index, that is, NCT_MAX_PIN + 1 elements.Reported by: CoverityCIDs: 1353806, 1353807, 1353808, 1353809, 1353810Sponsored by: EMC / Isilon Storage Division List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

73a1170a8c41cb848f17cc0a8839e9dcee3d126e - sys/dev: use our nitems() macro when it is avaliable through param.h.

Wed, 20 Apr 2016 01:37:24 +0200

sys/dev: use our nitems() macro when it is avaliable through param.h.No functional change, only trivial cases are done in this sweep,Drivers that can get further enhancements will be done independently.Discussed in: freebsd-current List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

d60840138f6292c1ceeb177ebe797eca0b2749da - MFH

Tue, 05 Apr 2016 01:55:32 +0200

MFHSponsored by: The FreeBSD Foundation List of files: /freebsd/sys/dev/nctgpio/nctgpio.c

6b7b2d80ed4d728d3ffd12c422e57798c1b63a84 - Add support for the Nuvoton NCT5104D.

Thu, 31 Mar 2016 06:57:38 +0200

Add support for the Nuvoton NCT5104D.Make it compile only for i386/amd64 for now as it's been tested there.It's quite possible it'll show up elsewhere and we can enable itfor other architectures later.Tested:* PC Engines APU1C4Submitted by: Daniel Wyatt Reviewed by: adrian, loosDifferential Revision: https://reviews.freebsd.org/D5389 List of files: /freebsd/sys/dev/nctgpio/nctgpio.c