On Thu, 2011-08-18 at 19:43 -0400, Matt Turner wrote:

From: Maciej W. Rozycki <macro-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>

This is a rewrite of large parts of the driver mainly so that it uses
SMBus interrupts to offload the CPU from busy-waiting on status inputs.
As a part of the overhaul of the init and exit calls, all accesses to the
hardware got converted to use accessory functions via an ioremap() cookie.

[mattst88] Added BCM1480 interrupts and rebased minimally.

Signed-off-by: Matt Turner <redacted>
Signed-off-by: Maciej W. Rozycki <macro-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>

Patch works fine on our target, and shows significant speed improvements
for i2c accesses.

Linux version 3.0.3-428-g17c1f3f (groeck@rbos-pc-13) (gcc version 4.4.1
(Debian 4.4.1-1) ) #2 SMP Mon Aug 22 12:56:41 PDT 2011
bootconsole [early0] enabled
CPU revision is: 01041100 (SiByte SB1A)
FPU revision is: 000f0103
Checking for the multiply/shift bug... no.
Checking for the daddiu bug... no.
Broadcom SiByte BCM1480 B1 (pass2) @ 900 MHz (SB-1A rev 0)

Tested-by: Guenter Roeck <guenter.roeck-IzeFyvvaP7pWk0Htik3J/w@public.gmane.org>

Guenter