linux-stable.git/drivers/base/regmap, branch linux-3.8.y

regmap: cache Fix regcache-rbtree sync

2013-04-12T16:52:02+00:00

commit 8abac3ba51b5525354e9b2ec0eed1c9e95c905d9 upstream.

The last register block, which falls into the specified range, is not handled
correctly. The formula which calculates the number of register which should be
synced is inverse (and off by one). E.g. if all registers in that block should
be synced only one is synced, and if only one should be synced all (but one) are
synced. To calculate the number of registers that need to be synced we need to
subtract the number of the first register in the block from the max register
number and add one. This patch updates the code accordingly.

The issue was introduced in commit ac8d91c ("regmap: Supply ranges to the sync
operations").

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

regmap: Initialize `map->debugfs' before regcache

2013-04-12T16:52:02+00:00

commit c6432ea9cc043994d5b7dcb3ad86a087777cb40c upstream.

In the rbtree code we are exposing statistics relating to the
number of nodes/registers of the rbtree cache for each of the
devices.  Ensure that `map->debugfs' has been initialized before
we attempt to initialize the debugfs entry for the rbtree cache.

Signed-off-by: Dimitris Papastamos 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

Merge remote-tracking branch 'regmap/fix/debugfs' into tmp

2013-01-24T11:04:16+00:00

regmap: fix small typo in regmap_bulk_write comment

2013-01-22T08:24:12+00:00

Signed-off-by: Nestor Ovroy 
Signed-off-by: Mark Brown

regmap: debugfs: Fix seeking from the cache

2013-01-16T15:33:36+00:00

We don't want to bomb out early if we failed to get the cache any more,
just soldier on instead and we won't get confused and always return the
first block.

Reported-by: Philipp Zabel

regmap: debugfs: Make sure we store the last entry in the offset cache

2013-01-08T20:52:51+00:00

Signed-off-by: Mark Brown

regmap: debugfs: Ensure a correct return value for empty caches

2013-01-08T20:52:49+00:00

This should never happen in the real world.

Signed-off-by: Mark Brown

regmap: debugfs: Discard the cache if we fail to allocate an entry

2013-01-08T20:52:46+00:00

Rather than trying to soldier on with a partially allocated cache just
throw the cache away and pretend we don't have one in case we can get a
full cache next time around.

Signed-off-by: Mark Brown

regmap: debugfs: Fix check for block start in cached seeks

2013-01-08T20:52:45+00:00

Check for the block we were asked to start from, not the position we're
in.

Signed-off-by: Mark Brown

regmap: debugfs: Fix attempts to read nonexistant register blocks

2013-01-08T20:52:45+00:00

Return the start of the last block we tried to read rather than a position,
and also make sure we update the byte position while we're at it.  Without
this reads that go into nonexistant areas get confused.

Signed-off-by: Mark Brown