Draft: linux-postmarketos-exynos5: fix panel timings for samsung-manta

This fixes the panel timing parameters for the samsung-manta by backporting the fixes from 1.

changed the description

By Marian Buschsieweke on 2024-07-09T12:59:07

mentioned in issue #2615

By Marian Buschsieweke on 2024-07-09T13:00:26

This is not a reliable fix. Sometimes I can see the boot screen, sometimes the screen remains black

By Marian Buschsieweke on 2024-07-09T20:42:53

It also only works sporadically with https://gitlab.com/exynos5-mainline/linux

And even when I get output on the screen, the boot will fail at different stages. It looks like reading from the root file system fails at some random point.

By Marian Buschsieweke on 2024-07-09T20:42:53

mentioned in issue #3000

By Marian Buschsieweke on 2024-07-10T08:12:30

I'm not sure we should backport it to edge. It will come to edge eventually with linux-postmarketos-exynos5 upgrade, although it probably makes sense to backport it to v24.06

By jenneron on 2024-07-12T09:03:06

I would disagree, as if this MR would actually solves the issue, it would allow users to just flash their devices and it would work out of the box.

I could add a note to the patches and not just to the commit message to make it more obvious that the patches should be dropped after an upgrade. (But given that they will conflict anyway, there is no chance that this is missed.)

However, my tablet doesn't boot reliably with any variant of linux-ppostmarketos-exynos5 (I tested with this MR, the variant in edge, and the HEAD of master in https://gitlab.com/exynos5-mainline/linux).

By Marian Buschsieweke on 2024-07-12T09:03:06

I'm not against fixing this, I'm just saying that we should upgrade linux-postmarketos-exynos5 with fixes included instead

If these fixes are not present in exynos5-mainline/linux we should merge it there

By jenneron on 2024-07-13T15:37:46

The fixes have been merged already, but the most recent tag is from before those where merged. So once a tag is created, this MR would be obsolete.

By Marian Buschsieweke on 2024-07-13T17:45:19

I'll look at creating a new tag this weekend, based on 6.10

By Henrik Grimler on 2024-07-17T16:31:57

Thx!

By Marian Buschsieweke on 2024-07-17T16:32:24

@grimler: A friendly reminder :)

By Marian Buschsieweke on 2024-07-22T09:08:01

Yeah, ran into some other issues that had to be fixed first (!5365 (merged)). Have forced pushed to the lts-6.6.x branch, but not finished testing all the devices yet, plan is to finish it today!

By Henrik Grimler on 2024-07-22T10:46:41

(And yeah, new tag will be based on 6.6.41 and not 6.10 as I said earlier, as we have decided to use LTS versions for exynos5)

By Henrik Grimler on 2024-07-22T10:50:06

closed

(This MR is not needed anymore, given that the tag is about to be created anyway.)

By Marian Buschsieweke on 2024-07-17T16:33:25