Am Thu, 18 Mar 2021 13:40:58 +0100 schrieb Alexander Dahl <ada@xxxxxxxxxxx>: > Hei hei, > > > Enrico Weigelt, metux IT consult <lkml@xxxxxxxxx> hat am 18.03.2021 > > 11:27 geschrieben: > > > > > > On 15.03.21 11:48, Andy Shevchenko wrote: > > > > Hi, > > > > > I have a question, why we can't provide a GPIO driver which is > > > already in the kernel and, with use of the patch series I sent, > > > to convert this all magic to GPIO LEDs as it's done for all > > > normal cases? > > > > Do we alread have a generic led driver that for cases that just > > set/clear bits in some mem/io location ? If not, that would be > > really great to have. > > Yes, there is. Look out for compatible "register-bit-led" in device > tree. That's from driver in drivers/leds/leds-syscon.c and you can > use it inside a syscon node in dts. > > It assumes one bit per LED. Sorry guys, i am lost here. Is there a driver i can base mine on, if so which one? Maybe you can point me to a good example that is conceptually similar. As i already wrote in the reviews of v1, the ACPI tables will not change on the machines in question. So there is a need for a driver. Either one like i did propose or maybe something that patches ACPI or loads device-tree snippets, again please point me to good examples. We are talking about x86-only here. Henning > Greets > Alex
