On Mon, 17 Dec 2018 08:53:59 +0100 Hans de Goede <hdegoede@xxxxxxxxxx> wrote: > Hi, > > On 16-12-18 23:03, Antonio Ospite wrote: > > On Sun, 16 Dec 2018 20:07:30 +0100 > > Hans de Goede <hdegoede@xxxxxxxxxx> wrote: > > > >> Hi, > >> > >> On 16-12-18 19:54, Stephan Gerhold wrote: > > [...] > >>> Unlike many of the other DSDT dumps I've looked at, there is only one > >>> interrupt listed. Full ACPI DSDT table is at [1]. > >>> > >>> Since there is no IRQ at index 5, platform_get_irq will return -ENXIO. > >>> Couldn't we fall back to index 0 in this case? I would say that if the > >>> seemingly "correct" IRQ at index 5 does not even exist, we still have > >>> a better chance of picking the right one if we try the one at index 0. > >>> Or we could check the number of interrupts that are actually available. > >> > >> If I'm not mistaken then you already mentioned in another thread > >> (the "tusb1210 probe of dwc3.0.auto.ulpi fails with EBUSY on 4.19+") > >> thread that the DSTD of this Andriod only device has several bugs in > >> there such as wrong GPIOs in some places, etc. and you need to do a > >> DSDT override anyways to get some things to work, right ? > >> > >> In that case I believe it would be best to just also patch up this > >> part of the DSDT in your override and leave the current kernel code > >> as is. > >> > > > > FWIW that is what I did when playing with a Teclast X98 Air 3G some > > years ago, see: > > https://git.ao2.it/Teclast-X98-Air-3G_C6J6_custom_DSDT.git/ > > > > In my case I just had to fix the ordering: > > https://git.ao2.it/Teclast-X98-Air-3G_C6J6_custom_DSDT.git/commitdiff/f718ea7d184cf266d7b5453124139b1c627221e6 > > > > It's been a while tho, I just committed and pushed the change now > > because I had forgotten back in the day. > > > > The Makefile in the repository contains some pointers about how to build > > a DSDT override, what is missing is that you still have to manually > > append the original initrd to the file created by the Makefile. > > If that is the only issue the DSTD of the Teclast-X98-Air-3G has, then this > seems like a case where a DMI quirk might be a good solution, so that it > will work out of the box for users trying to put Linux on there. > I'll have to double check about that, it's been a long time since I tried booting a mainline kernel on the device. Thanks for the suggestion, Antonio -- Antonio Ospite https://ao2.it https://twitter.com/ao2it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
