Re: [PATCH v4 04/10] mtd: pxa3xx_nand: rework flash detection and timing setup

From: Sebastian Hesselbarth
Date: Thu Apr 30 2015 - 13:52:27 EST

On 30.04.2015 16:31, Antoine Tenart wrote:
On Thu, Apr 16, 2015 at 01:59:32PM -0300, Ezequiel Garcia wrote:
On 04/16/2015 10:41 AM, Sebastian Hesselbarth wrote:

All we need is a function to convert sdr_timings to sane driver
timings. And we really need to split this patch into tiny pieces
otherwise it is not reviewable - or at least I need a full overview
about the driver first.

I think that's a bit of a different issue. This patch seems to be doing
two things: it removes the in-driver flash detection *and* reworks
timing setup.

How about we split this in two or even three patches? Along these lines:
1) introduce timing helpers, 2) rework timing setup, 3) remove in-driver
flash detection. Not sure how feasible it is.

That's quite difficult, as you cannot have 1) without having the changes
made in 2). Flash detection and timing reworks are linked and I'm not
sure we can have this split into 2 or 3 patches without having a state
where the driver does not work.


functionally you are right. But splitting the patch into the three
pieces above will heavily reduce the diff-per-patch significantly.
For example, if you introduce 1) without using it, we can only look at
the helper. Then in 2) you actually use that helper and 3) will clean
the mess up.

BTW, I am fine with running the flash on mach-berlin boards with some
default timing for now until we worked out how mtd will deal with
protocol and array timings.

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