[PATCH v4 00/18] I2C: OMAP: I2C fixes, removal of cpu_is... from driver

[ben-i2c@fluff.org (Ben Dooks)]

On Wed, Jun 01, 2011 at 05:19:26PM -0700, Kevin Hilman wrote:
> Ben, 
> 
> Please pull in this series from Andy Green for the next merge window.
> 
> v4 is simply a rebase of Andy's v3 against v3.0-rc1 with some basic
> sanity testing against with the latest kernel.

These look much more like functionality changes than actual fixes, and
are much more suited for inclusion into -next for once the next stable
release is out.
 
> It's also available here for pulling:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.git for_3.1/i2c-andy
> 
> Original cover letter from Andy below:
> 
> The following series removes cpu_...() usage completely from the
> omap-i2c driver by having decisions about functional implementation
> choices in the SoC held in cpu-specific hwmod tables that are
> already established, or for OMAP1 where there is no hwmod, set at
> OMAP1-specific i2c bus addition time.
> 
> Along the way it solves two issues with the existing implementation,
> that only 16-bit accesses are documented to be allowed to the I2C
> peripheral unit, and that due to a confusion in the existing driver
> about whether it is faced with a newer IP version on OMAP3530, currently
> it writes to a random non-existent I2C register at times on that
> platform.

As noted above there's rather lot of functionality change to go in
with fixing bugs. Is there a possibility of just fixing as many problems
without making a pile of changes?
 
> The patch series is quite extended from the first try thanks to
> comments from Benoit Cousson.
> 
> This 3rd try is based on 2.6.38-rc8 as requested.
> 
> Andy Green (18):
>   I2C: OMAP2+: Set hwmod flags to only allow 16-bit accesses to i2c
>   I2C: OMAP2+: Name registers in I2C IP V2 only accordingly
>   I2C: OMAP2+: Introduce I2C IP versioning constants
>   I2C: OMAP2+: Tag all OMAP2+ hwmod defintions with I2C IP revision
>   I2C: OMAP: add rev to omap i2c platform data
>   I2C: OMAP1: set IP revision in platform data
>   I2C: OMAP2+: Pass hwmod rev knowledge via platform_data when i2c bus
>     added
>   I2C: OMAP2+: use platform_data ip revision to select register map
>   I2C: OMAP2+: Solve array bounds overflow error on i2c idle
>   I2C: OMAP2+: address confused probed version naming
>   I2C: OMAP2+: increase omap_i2c_dev_attr flags from u8 to u32
>   I2C: OMAP1/OMAP2+: add flags field to omap i2c platform data
>   I2C: OMAP2+: Pass flags up to omap i2c platform_data as well
>   I2C: OMAP1/OMAP2+: create omap I2C functionality flags for each
>     cpu_... test
>   I2C: OMAP2+: add correct functionality flags to all omap2plus i2c
>     dev_attr
>   I2C: OMAP1: set i2c unit feature implementation flags in platform
>     data
>   I2C: OMAP2+: Convert omap I2C driver to use feature implementation
>     flags from platform data
>   I2C: OMAP1/OMAP2+: prepend I2C IP version to probed version shown in
>     dev_info
> 
>  arch/arm/mach-omap2/omap_hwmod_2420_data.c |    8 ++-
>  arch/arm/mach-omap2/omap_hwmod_2430_data.c |    6 ++
>  arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |   13 ++++
>  arch/arm/mach-omap2/omap_hwmod_44xx_data.c |   18 ++++-
>  arch/arm/plat-omap/i2c.c                   |   27 ++++++++
>  arch/arm/plat-omap/include/plat/i2c.h      |    3 +-
>  drivers/i2c/busses/i2c-omap.c              |  100 +++++++++++++++-------------
>  include/linux/i2c-omap.h                   |   29 ++++++++
>  8 files changed, 153 insertions(+), 51 deletions(-)
> 
> -- 
> 1.7.4
> 
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-- 
Ben Dooks, ben at fluff.org, http://www.fluff.org/ben/

Large Hadron Colada: A large Pina Colada that makes the universe disappear.