[RFC PATCH 0/7] mtd: partitions: add of_match_table support

Michal Suchanek hramrach at gmail.com
Sat Dec 5 10:06:57 PST 2015


On 5 December 2015 at 11:15, Geert Uytterhoeven <geert at linux-m68k.org> wrote:
> On Sat, Dec 5, 2015 at 6:19 AM, Brian Norris
> <computersforpeace at gmail.com> wrote:
>> There have been several discussions [1] about adding a device tree binding for
>> associating flash devices with the partition parser(s) that are used on the
>> flash. There are a few reasons:
>>
>>  (1) drivers shouldn't have to be encoding platform knowledge by listing what
>>      parsers might be used on a given system (this is the currently all that's
>>      supported)
>>  (2) we can't just scan for all supported parsers (like the block system does), since
>>      there is a wide diversity of "formats" (no standardization), and it is not
>>      always safe or efficient to attempt to do so, particularly since many of
>>      them allow their data structures to be placed anywhere on the flash, and
>>      so require scanning the entire flash device to find them.
>
> I read the second reason, but would it be useful to (partially) merge
> block/partitions/ and drivers/mtd/partitions/, so I can use e.g. msdos
> partitions
> on an mtd device??
>

Using msdos partition on a MTD device does not sound terribly useful.
On what kind of non-block device would you expect to find one?

On the other hand, using FMAP on a block device might work an even
might have some uses.

Thanks

Michal



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