Messages in this thread | | | Date | Sun, 04 Oct 2020 16:10:46 +0200 | From | Michael Walle <> | Subject | Re: [PATCH] mtd: spi-nor: Prefer asynchronous probe |
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Hi,
Am 2020-10-03 19:00, schrieb Doug Anderson: > On Sat, Oct 3, 2020 at 9:54 AM Michael Walle <michael@walle.cc> wrote: >> While debugging another issue I also noticed that sometimes my >> /dev/mtdN devices were reordered. Note that I have two SPI flashes. >> Might this also be connected to the async probe? > > It's likely. My guess is that you shouldn't really be depending on > the numbering. If you need to depend on the numbering, there should > be something that guarantees it like a device tree alias. We have > struggled with similar things on MMC for years and I guess Ulf finally > decided that we weren't going to get a better solution than the device > tree aliases.
But this has to be supported by spi-nor first, right? So that would also be something which has to be added before we can make the probe async. And as far as I know there is no such mechanism like /dev/disk/by-X for /dev/mtdN.
-michael
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