looks like i've found it: when reverting these 2 (latter alone was not enough and seems not fixing the timeout as shown in my trace) Revert "spi: mediatek: Enable irq when pdata is ready" (HEAD -> 6.2-rc) Revert "spi: spi-mtk-nor: Add recovery mechanism for dma read timeout" so this breaks spi on mt7986: c6f7874687f7 2022-11-28 spi: mediatek: Enable irq when pdata is ready have sent bug-report to mailinglist and author/reviewer/maintainer... regards Frank > Gesendet: Dienstag, 27. Dezember 2022 um 10:43 Uhr > Von: "Frank Wunderlich" <frank-w@xxxxxxxxxxxxxxx> > > at first look it seems it is needed...as i get this trace with 6.2: > > [ 2.145931] pc : mtk_spi_can_dma+0x0/0x34 > [ 2.155212] lr : mtk_spi_interrupt+0x74/0x360 > > [ 2.091801] mtk-spi 1100a000.spi: spi-mem transfer timeout > [ 2.097310] spi-nor: probe of spi0.0 failed with error -110 > [ 2.102930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000010 > > but i get the same trace when reverting the cs-gpios change....seems something is broken in 6.2-rc1 > > 6.1 works without the bogus cs-gpios (and the mt7531 interrupt-change)... > > have tried reverting this commit, but it does not fix the issue: > > 8330e9e8269b 2022-12-07 spi: spi-mtk-nor: Add recovery mechanism for dma read timeout
