Messages in this thread | | | From | Enric Balletbo Serra <> | Date | Fri, 9 Jul 2021 12:24:00 +0200 | Subject | Re: Re: BUG: MTK DRM/HDMI broken on 5.13 (mt7623/bpi-r2) |
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Hi Frank,
Missatge de Frank Wunderlich <frank-w@public-files.de> del dia dv., 9 de jul. 2021 a les 12:02: > > Hi, > > i've found it :) > > hdmi-problem is caused by > > commit 440147639ac79f699a4eb9811d0bc39d3cc815f4 > Author: CK Hu <ck.hu@mediatek.com> > Date: Wed Mar 17 19:17:10 2021 +0100 > > soc: mediatek: mmsys: Use an array for setting the routing registers > > but i cannot revert it alone, but after reverting all mmsys-patches hdmi works (ovl irq-handler called) >
If this is the offending commit, could you try if the following patch fixes the issue for you?
https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/commit/?h=v5.13-next/fixes&id=db39994e0bd852c6612a9709e63c09b98b161e00
If not, and that patch is the offending commit, it probably means that the default routing table doesn't work for mt7623. Needs a specific soc table.
Thanks, Enric.
> $ git logone v5.12..v5.13-rc1 -- drivers/ | grep 'mtk\|mediatek' | grep mmsys > 060f7875bd23 2021-04-05 soc: mediatek: mmsys: Add support for MT8167 SoC > 1ff1270fca33 2021-03-30 soc: mediatek: mmsys: Add mt8183 mmsys routing table > 440147639ac7 2021-03-17 soc: mediatek: mmsys: Use an array for setting the routing registers > ce15e7faa2fc 2021-03-17 soc: mediatek: mmsys: Create struct mtk_mmsys to store context data > > git revert 060f7875bd23 1ff1270fca33 440147639ac7 ce15e7faa2fc > > and after reapplying them one-by-one it stops working on commit above (440147639ac7) > > @Dafna can you confirm it solves your issue too? > > btw. watchdog issue is caused by > > commit bbece05c0d3a96817483e0b249ad1e302ba95117 > watchdog: mtk_wdt: Remove mtk_wdt_stop() in probe() to prevent the system freeze and it doesn't reboot by watchdog problem > > have already contacted author > > regards Frank
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