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
next 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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