[PATCH v2 0/5] mmc: dw_mmc: Fix the CTO timer patch, plus the DTO timer

Ulf Hansson ulf.hansson at linaro.org
Mon Oct 30 04:40:08 PDT 2017

On 12 October 2017 at 22:11, Douglas Anderson <dianders at chromium.org> wrote:
> Recently we landed 03de19212ea3 ("mmc: dw_mmc: introduce timer for
> broken command transfer over scheme").  I found a bunch of problems
> with that patch, so this series attempts to solve some of them.
> This also fixes the DTO timer in some of the same ways even though I
> haven't personally seen problems with the DTO timer.
> NOTE: this series has only been lighly tested so far.  I can at least
> reproduce the need for the CTO timer on one of my devices and so I can
> confirm that part still works.  As mentioned in the 3rd patch I also
> ran the mmc_test kernel module on this and did manage to see the 3rd
> patch doing something useful.
> Changes in v2:
> - Removed extra "int i"
> - Fix the DTO timeout calculation new for v2
> - Cleanup the DTO timer new for v2
> Douglas Anderson (5):
>   mmc: dw_mmc: cancel the CTO timer after a voltage switch
>   mmc: dw_mmc: Fix the CTO timeout calculation
>   mmc: dw_mmc: Add locking to the CTO timer
>   mmc: dw_mmc: Fix the DTO timeout calculation
>   mmc: dw_mmc: Cleanup the DTO timer like the CTO one
>  drivers/mmc/host/dw_mmc.c | 162 +++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 146 insertions(+), 16 deletions(-)

Douglas, Jaehoon,

I decided to pick patch 1->4 for fixes and the patch 5 for next, that
should help us to get them more tested, while Jaehoon is still
catching up.

I can add ack/drop patches for yet a couple of days this week.

Kind regards

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