[PATCH v2 0/5] mmc: dw_mmc: Fix the CTO timer patch, plus the DTO timer
dianders at chromium.org
Thu Oct 12 13:11:13 PDT 2017
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(-)
More information about the Linux-rockchip