Stephen Warren bacdbe0773 regmap: introduce fast_io busses, and use a spinlock for them ...

Some bus types have very fast IO. For these, acquiring a mutex for every
IO operation is a significant overhead. Allow busses to indicate their IO
is fast, and enhance regmap to use a spinlock for those busses.

[Currently limited to native endian registers -- broonie]

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

2012-04-06 10:47:34 +01:00

..

internal.h

regmap: introduce fast_io busses, and use a spinlock for them

2012-04-06 10:47:34 +01:00

Kconfig

regmap: Add a reusable irq_chip for regmap based interrupt controllers

2011-11-08 11:29:48 +00:00

Makefile

regmap: Remove indexed cache type

2011-11-20 20:56:34 +00:00

regcache-lzo.c

The following text was taken from the original review request:

2012-03-24 10:41:37 -07:00

regcache-rbtree.c

regmap: introduce fast_io busses, and use a spinlock for them

2012-04-06 10:47:34 +01:00

regcache.c

regmap: introduce fast_io busses, and use a spinlock for them

2012-04-06 10:47:34 +01:00

regmap-debugfs.c

The following text was taken from the original review request:

2012-03-24 10:41:37 -07:00

regmap-i2c.c

regmap: introduce explicit bus_context for bus callbacks

2012-04-06 10:47:34 +01:00

regmap-irq.c

device.h: cleanup users outside of linux/include (C files)

2012-03-11 14:27:37 -04:00

regmap-spi.c

regmap: introduce explicit bus_context for bus callbacks

2012-04-06 10:47:34 +01:00

regmap.c

regmap: introduce fast_io busses, and use a spinlock for them

2012-04-06 10:47:34 +01:00