On Wed, Jun 19, 2019 at 9:19 AM Richard Henwood Richard.Henwood@arm.com wrote:
hi All,
Mailing list created! Welcome all!
My notes from talking to Lee this week
ACPI:
- UFS patches have been sent upstream.
- With a patch, battery and AC power detection work!
General
- It seems ISO9660 images will boot, but only from USB 3.1 dev.
- Unable to reproduce the trackpad problems - it works fine now.
- Maybe this is because of a firmware update?
Distros:
Ubuntu
- 18.04: missing grub 4k alignment patch.
- 19.04: boots to grub, kernel does not boot.
- Leif's
openSUSE
- missing grub 4k alignment patch.
Fedora Rawhide
- grub boots. Installer hangs with '_' (see below)
Open task items for this week's update
Please ping this list to share your interest in items so we can avoid duplication of effort.
I've been working on advancing the support for the 835 (msm8998) based laptops. Since there is no DragonBoard for 835, the state of support is less than that of 845, but progress is being made.
DTs are on list. Right now, I just need the Input maintainer to give the dependency the time of day and hopefully queue it.
GPU support and some display support has been accepted. I still need to cleanup a little bit more in the MDP and DSI areas. I'm chasing folks internally to see if I can get the GPU FW publicly released so that it can be pulled into the linux-firmware package.
The clock controllers for display and GPU are on list, but reviews have been dragging out, so I have no ETA for when they'll likely be accepted.
After GPU/Display is all settled, the next task will likely be wifi.
- Linux support for ACPI PNP0D80 (PEP)
- The PNP0D80 is a System Power Management Controller
- Very little support resides in Linux at the moment
- Thus no ACPI Power Management can currently take place
- Accelerated Graphics also depends on it
In theory, I got pointed to the Spec for this. I need to circle back and review what I got.
UEFI Boot Variables investigation
- Grub fails to manipulate them during install
- Is it possible for Linux to change them at run-time?
DMA crash investigation
- CRASH IMAGE: https://photos.app.goo.gl/2MGJEALZMyoowr9d6
- HACK PATCH: https://tinyurl.com/y5cnln2j
Upstream Kernel ACPI check
- ACPI tables incorrectly advertise themselves as v5.0
- Kernel should check the presence of PSCI instead
- PATCH: https://tinyurl.com/yyq76m47
- NB: Assuming Ard will handle this - needs to be done soon
Upstream ACPI Battery and AC Power support
- Simply a matter of not depending on CONFIG_X86
- PATCH: https://tinyurl.com/yx9kf7e8
- NB: Assuming Ard will handle this - needs to be done soon
Debug Fedora Rawhide
- Kernel currently boots to a black screen with white '_'
- NB: Assuming Peter will handle this
Create UEFI module for persistently loading DTB
- We have one which handles this for a single boot
- NB: Assuming Leif will handle this
Test ISO9660 based installers booting from USB
- Must be done by someone who has not updated Windows
- Fedora Rawhide ISO is a good image to use for testing
- If it boots to the Fedora (Grub) menu, it works
- Current belief is that USB 3.1 sticks are required
- Need to test USB 2.0 and 3.0 sticks too
Create and upstream a Live Arch Linux ISO/installer for AArch64
- AArch64 support is provided by copying a pre-built roofs to UFS
- This is clunky and needs a proper installer like other distos
- Get in touch with Richard Henwood directly if you can help.
best regards, Richard
PS. Don't forget to visit #aarch64-laptops on freenode IRC.
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