linux-toradex.git/drivers/base/regmap/regmap-debugfs.c, branch T20_LinuxImageV2.0_20130305

regmap: implement register striding

2012-04-15T21:58:10+00:00

regmap_config.reg_stride is introduced. All extant register addresses
are a multiple of this value. Users of serial-oriented regmap busses will
typically set this to 1. Users of the MMIO regmap bus will typically set
this based on the value size of their registers, in bytes, so 4 for a
32-bit register.

Throughout the regmap code, actual register addresses are used. Wherever
the register address is used to index some array of values, the address
is divided by the stride to determine the index, or vice-versa. Error-
checking is added to all entry-points for register address data to ensure
that register addresses actually satisfy the specified stride. The MMIO
bus ensures that the specified stride is large enough for the register
size.

Signed-off-by: Stephen Warren 
Signed-off-by: Mark Brown 
(cherry picked from commit f01ee60fffa4dc6c77122121233a793f7f696e67)

Change-Id: I634977dcb0fe9ff95c7932e9195a2c1918eb1c18
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/96510
Reviewed-by: Simone Willett 
Tested-by: Simone Willett

regmap: allow regmap instances to be named

2012-04-15T21:47:14+00:00

Some devices have multiple separate register regions. Logically, one
regmap would be created per region. One issue that prevents this is that
each instance will attempt to create the same debugfs files. Avoid this
by allowing regmaps to be named, and use the name to construct the
debugfs directory name.

Signed-off-by: Stephen Warren 
Signed-off-by: Mark Brown 
cherry-picked form mainline d3c242e

Change-Id: Ia3301fb4d28645f1d3593e547f9409ce20c0acfe
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/96508
Reviewed-by: Simone Willett 
Tested-by: Simone Willett

regmap: delete unused module.h from drivers/base/regmap files

2012-04-15T20:50:37+00:00

Remove unused module.h and/or replace with export.h
as required.

Signed-off-by: Paul Gortmaker 
Signed-off-by: Mark Brown 
(cherry picked from commit 19694b5ea1d3a723dafe9544b5ee9a935414dc28)

Change-Id: Icf76b35f6d0d1f4720ca6d51fa9b2ebf123604b1
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/96492
Reviewed-by: Automatic_Commit_Validation_User

regmap: Expose the driver name in debugfs

2012-04-15T20:28:26+00:00

Add a file called 'name' containing the name of the driver.

Signed-off-by: Dimitris Papastamos 
Signed-off-by: Mark Brown 
(cherry picked from commit f0c2319f9f196726ebe4d7508fd8fbd804988db3)

Change-Id: Id67e73cfd573a71377fe6bbc5c3068718822ef38
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/96484
Reviewed-by: Automatic_Commit_Validation_User

regmap: Add support for writing to regmap registers via debugfs

2012-04-15T20:28:23+00:00

To enable writing to the regmap debugfs registers file users will
need to modify the source directly and #define REGMAP_ALLOW_WRITE_DEBUGFS.
The reason for this is that it is dangerous to expose this
functionality in general where clients could potentially be PMICs.

[A couple of minor style updates -- broonie]

Signed-off-by: Dimitris Papastamos 
Signed-off-by: Mark Brown 
(cherry picked from commit 09c6ecd394105c4864a0e409e181c9b1578c2a63)

Change-Id: Ia9408880e25d5060796ab79812a023def00b10bc
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/96483
Reviewed-by: Automatic_Commit_Validation_User

regmap: Add debugfs information for the cache status

2012-03-05T16:00:01+00:00

Show all the cache status flags in debugfs if we have a cache.

Signed-off-by: Mark Brown 
(cherry picked from commit 028a01e601487b5991b70dba506dfe87d83543f6)

Change-Id: I2b5297143ea8c81477a5124c7db0e6683fd56255
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/87588

regmap: Include the last register in debugfs output

2011-09-05T17:58:31+00:00

Off by one in the array iteration.

Reported-by: Jonathan Cameron 
Signed-off-by: Mark Brown

regmap: Provide access information via debugfs

2011-08-14T10:51:16+00:00

Let userspace know what the access map for the device is. This is helpful
for verifying that the access map is correctly configured and could also
be useful for programs that try to work with the data. File format is:

register: R W V P

where R, W, V and P are 'y' or 'n' showing readable, writable, volatile
and precious respectively.

Signed-off-by: Mark Brown

regmap: Share some of the debugfs infrastructure ready for more files

2011-08-14T10:51:14+00:00

Signed-off-by: Mark Brown

regmap: Add functions to check for access on registers

2011-08-14T10:51:11+00:00

We're going to be using these in quite a few places so factor out the
readable/writable/volatile/precious checks.

Signed-off-by: Mark Brown