[Lucid] SRU: Backport of latest thinkpad-acpi driver

[Andy Whitcroft]

On Wed, Mar 31, 2010 at 10:39:23AM +0200, Stefan Bader wrote:
> As we were asked to make the HW mixer for Thinkpads availave to user-space
> in Lucid. This requires unfortunately a major backport of the driver itself.
> On the good side we were able to test the new driver on a range of ThinkPads
> and have seen any regression yet. And all the changes are limited to this
> single subsystem driver.
> 
> Note: When applying the config update, it probably needs a updateconfigs.
> Not sure, but I did that a bit ago.
> 
>  debian.master/config/config.common.ubuntu |    1 
>  drivers/platform/x86/Kconfig              |   23 
>  drivers/platform/x86/thinkpad_acpi.c      | 1217 +++++++++++++++++++++++-------
>  3 files changed, 983 insertions(+), 258 deletions(-)

Although it is a major update, it does appear that visual feedback and
general user expectation is better with this driver.  I suspect there is
some userspace work to go with this but either way I think it looks like
a sane plan.

Acked-by: Andy Whitcroft <apw at canonical.com>

-apw