RE: [RFC PATCH v2 09/14] mtd: nand: add sunxi NFC dt bindings doc

[Gupta, Pekon]

Dear Rob, and other DT maintainers,
(apologies, fixed typos in earlier mail)

>>From: Rob Herring
>[...]
>>> +- onfi,nand-timing-mode : mandatory if the chip does not support the ONFI
>>> +  standard.
>>
>>Add to generic nand binding.
>>
>>> +- allwinner,rb : shall contain the native Ready/Busy ids.
>>> + or
>>> +- rb-gpios : shall contain the gpios used as R/B pins.
>>
>>Isn't allwinner,rb implied by a lack of rb-gpios property. Or no R/B
>>pin is an option? If so, don't you need some fixed time delay
>>properties like max erase time?
>>
>>rb-gpios could be added to the generic nand binding as well.
>>
I do _not_ think this should go into generic nand binding, as this is controller specific.
Some controllers have dedicated R/B pin (Ready/Busy) while others may use
GPIO instead. It's the way a hardware controller is designed.

Request you to please consider Ack from MTD Maintainers 'at-least' for
generic NAND DT bindings. There is already a discussion going in
a separate thread for which there are still no replies [1].

[1] http://lists.infradead.org/pipermail/linux-mtd/2014-January/051625.html


with regards, pekon
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