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From: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
To: w.sang@pengutronix.de, ben-linux@fluff.org, magnus.damm@gmail.com
Cc: linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-sh@vger.kernel.org
Subject: [PATCH 0/5] i2c-sh_mobile non-urgent changes
Date: Wed, 24 Oct 2012 19:55:59 +0900	[thread overview]
Message-ID: <5087C93F.6080601@renesas.com> (raw)

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

             reply	other threads:[~2012-10-24 10:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-24 10:55 Shinya Kuribayashi [this message]
2012-10-24 10:57 ` [PATCH 2/5] i2c: i2c-sh_mobile: optimize ICCH/ICCL values according to I2C bus speed Shinya Kuribayashi
2012-10-24 10:57 ` [PATCH 3/5] i2c: i2c-sh_mobile: fix ICCH to avoid violation of the tHD;STA timing spec Shinya Kuribayashi
2012-10-24 10:58 ` [PATCH 4/5] i2c: i2c-sh_mobile: support I2C hardware block with a faster operating clock Shinya Kuribayashi
2012-10-24 10:58 ` [PATCH 5/5] i2c: i2c-sh_mobile: fix spurious transfer request timed out Shinya Kuribayashi
     [not found] ` <5087C93F.6080601-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2012-10-24 10:56   ` [PATCH 1/5] i2c: i2c-sh_mobile: calculate clock parameters at driver probing time Shinya Kuribayashi
2012-11-16  8:07   ` [PATCH 0/5] i2c-sh_mobile non-urgent changes Wolfram Sang
2012-11-16  8:53     ` Shinya Kuribayashi
2012-11-17 23:27       ` Guennadi Liakhovetski

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