[PATCH 0/5] i2c-sh_mobile non-urgent changes

Shinya Kuribayashi shinya.kuribayashi.px at renesas.com
Wed Oct 24 06:55:59 EDT 2012


Hello,

This is the first batch to fix the i2c-sh_mobile driver.  As a first
step, this comprises of the SCL optimization work and a simple fix to
annoying spurious WAIT interrupt issue; in other words, this does not
change tx/rx data handling logic.

This driver has an architectural problem with send/receive procedures
and needs a fundamental overhaul.  I've been working on splitting into
logical chunks, but not yet completed.

Patches are prepared against the vanilla v3.6.  I don't have a chance
to give it a try with v3.6+ kernels myself, but tend to be optimistic
about that.  I have been cooking these patches over a year, and they
work perfectly fine with older kernels ..v3.4 so far.


Shinya Kuribayashi (5):
      i2c: i2c-sh_mobile: calculate clock parameters at driver probing time
      i2c: i2c-sh_mobile: optimize ICCH/ICCL values according to I2C bus speed
      i2c: i2c-sh_mobile: fix ICCH to avoid violation of the tHD;STA timing spec
      i2c: i2c-sh_mobile: support I2C hardware block with a faster operating clock
      i2c: i2c-sh_mobile: fix spurious transfer request timed out

 drivers/i2c/busses/i2c-sh_mobile.c | 150 ++++++++++++++++++++++++-------------
 include/linux/i2c/i2c-sh_mobile.h  |   1 +
 2 files changed, 98 insertions(+), 53 deletions(-)

--
Shinya Kuribayashi
Renesas Electronics



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