[PATCH v3] mtd: cfi_cmdset_0002: Change write buffer to check correct value

[Joakim Tjernlund]

On Tue, 2018-05-15 at 16:49 +0000, IKEGAMI Tokunori wrote:
> 
> Hi Jocke-san,

Hi Ikegami-san,

> 
> > Then I got really curious, dos the same work for your erase problem?
> > Replace chip_ready(...) with chip_good(map, adr, map_word_ff(map) ?
> > Don't you have any status bits when erase/write fails?
> 
>   Yes this also you are right.
>   I have just tested the effect as below.
>   The flash erase error also does not occur by checking chip_good instead of chip_ready.
>   This has been tested by the same reproduction method.
>   It looks that the flash erase error is also able to be resolved by chip_good.
>   So I will do update the patch series to change use chip_good instead of chip_ready.
>   But to make sure I would like remain the changes to retry the error.
>   Also I will combine the changes for the flash write error also as same series.

Nice :) I just had a look at chip_good() and saw that it is actually both
toggle and DQ7, belt and suspenders :) 
I thought chip_good() was only DQ7, anyhow, I guess this makes the test very robust but a bit slow. 

> 
> Regards,
> Ikegami
>