linux-toradex.git/drivers/ssb/driver_chipcommon.c, branch v2.6.32.51

ssb: Handle alternate SSPROM location

2010-08-10T17:20:51+00:00

commit 9d1ac34ec3a67713308ae0883c3359c557f14d17 upstream.

In kernel Bugzilla #15825 (2 users), in a wireless mailing list thread
(http://lists.infradead.org/pipermail/b43-dev/2010-May/000124.html), and on a
netbook owned by John Linville
(http://marc.info/?l=linux-wireless&m=127230751408818&w=4), there are reports
of ssb failing to detect an SPROM at the normal location. After studying the
MMIO trace dump for the Broadcom wl driver, it was determined that the affected
boxes had a relocated SPROM.

This patch fixes all systems that have reported this problem.

Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville 
Cc: Ben Hutchings 
Signed-off-by: Greg Kroah-Hartman

ssb: do not read SPROM if it does not exist

2010-08-10T17:20:49+00:00

commit d53cdbb94a52a920d5420ed64d986c3523a56743 upstream.

Attempting to read registers that don't exist on the SSB bus can cause
hangs on some boxes.  At least some b43 devices are 'in the wild' that
don't have SPROMs at all.  When the SSB bus support loads, it attempts
to read these (non-existant) SPROMs and causes hard hangs on the box --
no console output, etc.

This patch adds some intelligence to determine whether or not the SPROM
is present before attempting to read it.  This avoids those hard hangs
on those devices with no SPROM attached to their SSB bus.  The
SSB-attached devices (e.g. b43, et al.) won't work, but at least the box
will survive to test further patches. :-)

Signed-off-by: John W. Linville 
Signed-off-by: Rafał Miłecki 
Cc: Larry Finger 
Cc: Michael Buesch 
Cc: Ben Hutchings 
Signed-off-by: Greg Kroah-Hartman

Revert "ssb: Handle Netbook devices where the SPROM address is changed"

2010-08-10T17:20:49+00:00

Turns out this isn't the best way to resolve this issue.  The
individual patches will be applied instead.

Cc: Larry Finger 
Cc: Ben Hutchings 
Signed-off-by: Greg Kroah-Hartman

ssb: Handle Netbook devices where the SPROM address is changed

2010-08-02T17:20:43+00:00

For some Netbook computers with Broadcom BCM4312 wireless interfaces,
the SPROM has been moved to a new location. When the ssb driver tries to
read the old location, the systems hangs when trying to read a
non-existent location. Such freezes are particularly bad as they do not
log the failure.

This patch is modified from commit
da1fdb02d9200ff28b6f3a380d21930335fe5429 with some pieces from other
mainline changes so that it can be applied to stable 2.6.34.Y.

Signed-off-by: Larry Finger 
Signed-off-by: Greg Kroah-Hartman

ssb: Add PMU support

2009-02-09T20:03:49+00:00

This adds support for the SSB PMU.
A PMU is found on Low-Power devices.

Signed-off-by: Michael Buesch 
Signed-off-by: John W. Linville

ssb: Turn suspend/resume upside down

2008-04-08T19:05:57+00:00

Turn the SSB bus suspend mechanism upside down.
Instead of deciding by an internal reference count when to suspend/resume,
let the parent bus call us in their suspend/resume routine.

Signed-off-by: Michael Buesch 
Signed-off-by: John W. Linville

ssb: Add CHIPCO IRQ access functions

2008-02-29T20:41:43+00:00

This patch adds functions to setup and read the CHIPCO IRQ.

Signed-off-by: Aurelien Jarno 
Signed-off-by: Michael Buesch 
Signed-off-by: John W. Linville

ssb: Make the GPIO API reentrancy safe

2008-02-21T01:11:49+00:00

This fixes the GPIO API to be reentrancy safe.

Signed-off-by: Michael Buesch 
Signed-off-by: John W. Linville

ssb: Fix the GPIO API

2008-02-21T01:11:49+00:00

This fixes the GPIO API to be usable.

Signed-off-by: Michael Buesch 
Signed-off-by: John W. Linville

ssb: Fix serial console on new bcm47xx devices

2008-02-21T01:11:48+00:00

This fixes the baud settings for new devices
like the Linksys WRT350n.

Signed-off-by: Michael Buesch 
Signed-off-by: John W. Linville