litmus-rt-ext-res.git/drivers/base/regmap/Kconfig, branch EXT-RES

regmap: ac97: Add generic AC'97 callbacks

2014-11-19T10:28:14+00:00

Use the recently added support for bus operations to provide a standard
mapping for AC'97 register I/O.

Signed-off-by: Mark Brown 
Signed-off-by: Lars-Peter Clausen

regmap: Add explicit dependencies to catch "select" misuse

2014-08-17T13:54:14+00:00

Add explicit dependencies for the various regmap modules, so Kconfig
will print a warning message when another module selects a regmap module
without fulfilling its dependencies.

Without this, it's much more difficult to find out which module did the
offending select.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Mark Brown

regmap: add SPMI support

2013-10-28T19:51:43+00:00

Add basic support for the System Power Management Interface (SPMI) bus.
This is a simple implementation which only implements register accesses
via the Extended Register Read/Write Long commands.

Signed-off-by: Josh Cartwright 
Signed-off-by: Mark Brown

regmap: select REGMAP if REGMAP_MMIO and REGMAP_IRQ enabled

2012-10-17T13:09:35+00:00

The regmap_mmio and regmap_irq depend on regmap core, if not select,
we may not compile regmap core and meet compiling errors as follows
if REGMAP_MMIO is selected by client drivers:
drivers/mfd/syscon.c:94:15: error: variable 'syscon_regmap_config' has initializer but incomplete type
drivers/mfd/syscon.c:95:2: error: unknown field 'reg_bits' specified in initializer
drivers/mfd/syscon.c:95:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/syscon.c:95:2: warning: (near initialization for 'syscon_regmap_config') [enabled by default]
drivers/mfd/syscon.c:96:2: error: unknown field 'val_bits' specified in initializer
drivers/mfd/syscon.c:96:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/syscon.c:96:2: warning: (near initialization for 'syscon_regmap_config') [enabled by default]
drivers/mfd/syscon.c:97:2: error: unknown field 'reg_stride' specified in initializer
drivers/mfd/syscon.c:97:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/syscon.c:97:2: warning: (near initialization for 'syscon_regmap_config') [enabled by default]
drivers/mfd/syscon.c: In function 'syscon_probe':
drivers/mfd/syscon.c:124:2: error: invalid use of undefined type 'struct regmap_config'
drivers/mfd/syscon.c:125:2: error: implicit declaration of function 'devm_regmap_init_mmio' [-Werror=implicit-function-declaration]
drivers/mfd/syscon.c:125:17: warning: assignment makes pointer from integer without a cast [enabled by default]
cc1: some warnings being treated as errors

drivers/mfd/Kconfig:
config MFD_SYSCON
        bool "System Controller Register R/W Based on Regmap"
	depends on OF
	select REGMAP_MMIO
	help
	  Select this option to enable accessing system control registers
	    via regmap.

Signed-off-by: Dong Aisheng 
Signed-off-by: Mark Brown

regmap: Use select .. if to get IRQ_DOMAIN enabled

2012-05-23T09:15:51+00:00

Ensure that we can't get randconfig breakage by doing the IRQ_DOMAIN
select automatically. Don't just do the select from REGMAP_IRQ to ensure
that the select actually gets noticed.

Reported-by: Randy Dunlap 
Signed-off-by: Mark Brown

regmap: add MMIO bus support

2012-04-06T09:47:35+00:00

This is a basic memory-mapped-IO bus for regmap. It has the following
features and limitations:

* Registers themselves may be 8, 16, 32, or 64-bit. 64-bit is only
  supported on 64-bit platforms.
* Register offsets are limited to precisely 32-bit.
* IO is performed using readl/writel, with no provision for using the
  __raw_readl or readl_relaxed variants.

Signed-off-by: Stephen Warren 
Signed-off-by: Mark Brown

regmap: Add a reusable irq_chip for regmap based interrupt controllers

2011-11-08T11:29:48+00:00

There seem to be lots of regmap-using devices with very similar interrupt
controllers with a small bank of interrupt registers and mask registers
with an interrupt per bit. This won't cover everything but it's a good
start.

Each chip supplies a base for the status registers, a base for the mask
registers, an optional base for writing acknowledgements (which may be the
same as the status registers) and an array of bits within each of these
register banks which indicate the interrupt.

There is an assumption that the bit for each interrupt will be the same
in each of the register bank.

Signed-off-by: Mark Brown

regmap: Add the LZO cache support

2011-09-19T18:06:33+00:00

This patch adds support for LZO compression when storing the register
cache.

For a typical device whose register map would normally occupy 25kB or 50kB
by using the LZO compression technique, one can get down to ~5-7kB.  There
might be a performance penalty associated with each individual read/write
due to decompressing/compressing the underlying cache, however that should not
be noticeable.  These memory benefits depend on whether the target architecture
can get rid of the memory occupied by the original register defaults cache
which is marked as __devinitconst.  Nevertheless there will be some memory
gain even if the target architecture can't get rid of the original register
map, this should be around ~30-32kB instead of 50kB.

Signed-off-by: Dimitris Papastamos 
Signed-off-by: Mark Brown

regmap: Add SPI bus support

2011-07-23T06:56:59+00:00

Signed-off-by: Mark Brown 
Acked-by: Liam Girdwood 
Acked-by: Wolfram Sang 
Acked-by: Grant Likely

regmap: Add I2C bus support

2011-07-23T06:56:39+00:00

Signed-off-by: Mark Brown 
Acked-by: Liam Girdwood 
Acked-by: Wolfram Sang 
Acked-by: Grant Likely