From: gregory.clement@free-electrons•com (Gregory CLEMENT)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v5 0/3] i2c-mv64xxx: Fixes and new feature for controlers embedded in Aramda XP
Date: Tue, 20 Aug 2013 18:21:47 +0200 [thread overview]
Message-ID: <5213979B.4050306@free-electrons.com> (raw)
In-Reply-To: <1376039158-1896-1-git-send-email-gregory.clement@free-electrons.com>
On 09/08/2013 11:05, Gregory CLEMENT wrote:
> Hello,
>
> This new version just brings the handle of the "marvell,mv78230-i2"
> string as a single compatible string. As there were no other remarks
> since about 2 months I hope that this version will be able to be
> merged in 3.12.
>
> This patch set adds support for the I2C Transaction Generator which
> offloads CPU from managing I2C transfer step by step. This feature is
> currently only available on the I2C controller IP embedded in the
> Armada XP SoC.
>
> This series also contains a real fix for the I2C controller of the
> Armada XP SoC.
>
> The first two patches modify the driver itself and should go through
> i2c subsystem.
>
> The last patch updates the device tree to be able to use this new
> feature. I kept this patch in the series for having a coherent series,
> but it have already been pulled in the mvebu subsystem.
>
Wolfram,
Jason Cooper drooped the third patch as it conflicted with a patch from
Maxime Ripard which adds the AllWinner support. Olof also asked a formal
acked-by from a device tree maintainer even if we already answer to
Mark Rutland request.
Olof also requested that you take the binding update, so I am going to send
a new version of this patch set with the last patch split in two parts.
As explained earlier today, unless you really want I use be32_to_cpu in the
mv64xxx_i2c_offload_msg() I won't change anything else.
Regards,
> Thanks,
>
> Changelog:
>
> v4-v5:
>
> - handle of the "marvell,mv78230-i2" string as a single compatible
> string. Even it is strongly discouraged to use "marvell,
> mv78230-i2" alone, it is better to be able to handle it.
>
>
> v3->v4:
>
> - reverse the order of the compatible strings, with the most
> specific first
>
> - rebased on 3.11-rc1
>
> v2->v3:
>
> - Introduces a new compatible string mv78230-i2c which will be used
> for the fix and for the offload feature which are only present on
> the Armada XP SoCs
>
> - Removes the unneeded spin_lock_irqsave pointed by Russell King
>
> - The offload mechanism is now port of the fsm and handle the
> multiple messages.
>
> - The flag bridge-enabled is renamed to offload_enabled, but the
> register name stills contains the BRIDGE word to match the
> datasheet.
>
> - Uses writel_relaxed on the place pointed by Russell King
>
> - Uses the bool type for the flag (pointed by Thomas Petazzoni)
>
> - Removes useless code (pointed by Thomas Petazzoni)
>
> - Updates the bindings documentation
>
> v1->v2:
> - Move the flag for the timing issue from global scope to per device
> scope
> - Assignment is no more done in if condition
>
> Gregory CLEMENT (3):
> i2c-mv64xxx: Add I2C Transaction Generator support
> i2c-mv64xxx: Fix timing issue on Armada XP (errata FE-8471889)
> ARM: dts: mvebu: Introduce a new compatible string for mv64xxx-i2c
>
> .../devicetree/bindings/i2c/i2c-mv64xxx.txt | 13 +-
> arch/arm/boot/dts/armada-370-xp.dtsi | 2 -
> arch/arm/boot/dts/armada-370.dtsi | 8 +
> arch/arm/boot/dts/armada-xp.dtsi | 10 +
> drivers/i2c/busses/i2c-mv64xxx.c | 217 ++++++++++++++++++++-
> 5 files changed, 237 insertions(+), 13 deletions(-)
>
--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-08-20 16:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-09 9:05 [PATCH v5 0/3] i2c-mv64xxx: Fixes and new feature for controlers embedded in Aramda XP Gregory CLEMENT
2013-08-09 9:05 ` [PATCH v5 1/3] i2c-mv64xxx: Add I2C Transaction Generator support Gregory CLEMENT
2013-08-15 12:13 ` Wolfram Sang
2013-08-20 15:56 ` Gregory CLEMENT
2013-08-21 21:01 ` Wolfram Sang
2013-08-22 7:40 ` Gregory CLEMENT
2013-08-22 9:06 ` Wolfram Sang
2013-08-09 9:05 ` [PATCH v5 2/3] i2c-mv64xxx: Fix timing issue on Armada XP (errata FE-8471889) Gregory CLEMENT
2013-08-09 9:05 ` [PATCH v5 3/3] ARM: dts: mvebu: Introduce a new compatible string for mv64xxx-i2c Gregory CLEMENT
2013-08-09 9:13 ` Ezequiel Garcia
2013-08-09 9:18 ` Gregory CLEMENT
2013-08-09 9:30 ` Ezequiel Garcia
2013-08-09 11:32 ` Jason Cooper
2013-08-20 16:21 ` Gregory CLEMENT [this message]
2013-08-20 19:07 ` [PATCH v5 0/3] i2c-mv64xxx: Fixes and new feature for controlers embedded in Aramda XP Wolfram Sang
2013-08-21 10:44 ` Gregory CLEMENT
2013-08-21 13:43 ` Wolfram Sang
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