Messages in this thread | | | Subject | Re: [PATCH v2 0/4] Patches to allow consistent mmc / mmcblk numbering w/ device tree | From | Peter Hurley <> | Date | Fri, 29 Apr 2016 16:58:12 -0700 |
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On 04/29/2016 04:01 PM, Doug Anderson wrote: > * serial allows numbering devices by alias.
Which is in fact a total nightmare.
While stable device order is mandatory in serial because of console command line parameters and existing userspace expectations, it is the number one barrier to providing a shared ttyS namespace for mixed uart platforms.
Stable device order has a very real (and often unforeseen) maintenance burden.
For example, I noticed these patches are strictly for DT. I'm assuming that's because guaranteeing stable device order for mmc in general is more difficult; eg., by performing minimal scan serially and more expensive portion of the probe async.
Regards, Peter Hurley
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