linux-kernel - [PATCH 0/3] mmc: dw_mmc: Fix the CTO timer patch

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Date:   Wed, 27 Sep 2017 13:56:28 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     jh80.chung@...sung.com, ulf.hansson@...aro.org,
        shawn.lin@...k-chips.com
Cc:     briannorris@...omium.org, amstan@...omium.org,
        xzy.xu@...k-chips.com, Douglas Anderson <dianders@...omium.org>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] mmc: dw_mmc: Fix the CTO timer patch

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.

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.

Douglas Anderson (3):
  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

 drivers/mmc/host/dw_mmc.c | 101 ++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 89 insertions(+), 12 deletions(-)

-- 
2.14.2.822.g60be5d43e6-goog