linux-toradex.git/include/linux/i2c.h, branch v2.6.25.17

i2c: Make i2c_register_board_info() a NOP when CONFIG_I2C_BOARDINFO=n

2008-02-24T19:03:42+00:00

Don't require platform code to be #ifdeffed according to whether
I2C is enabled or not ... if it's not enabled, let GCC compile out
all I2C device declarations.  (Issue noted on an NSLU2 build that
didn't configure I2C.)

Signed-off-by: David Brownell 
Signed-off-by: Jean Delvare

i2c: Storage class should be before const qualifier

2008-02-24T19:03:42+00:00

The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the
beginning of the declaration specifiers in a declaration is an
obsolescent feature.

Signed-off-by: Tobias Klauser 
Signed-off-by: Jean Delvare

i2c: Add i2c_new_dummy() utility

2008-01-27T17:14:52+00:00

This adds a i2c_new_dummy() primitive to help work with devices
that consume multiple addresses, which include many I2C eeproms
and at least one RTC.

Signed-off-by: David Brownell 
Signed-off-by: Jean Delvare

i2c: Stop using the redundant client list

2008-01-27T17:14:51+00:00

The i2c_adapter.clients list of i2c_client nodes duplicates driver
model state.  This patch starts removing that list, letting us remove
most existing users of those i2c-core lists.

 * The core I2C code now iterates over the driver model's list instead
   of the i2c-internal one in some places where it's safe:
      - Passing a command/ioctl to each client, a mechanims
        used almost exclusively by DVB adapters;
      - Device address checking, in both i2c-core and i2c-dev.

 * Provide i2c_verify_client() to use with driver model iterators.

 * Flag the relevant i2c_adapter and i2c_client fields as deprecated,
   to help prevent new users from appearing.

For the moment the list needs to stick around, since some issues show
up when deleting devices created by legacy I2C drivers.  (They don't
follow standard driver model rules.  Removing those devices can cause
self-deadlocks.)

Signed-off-by: David Brownell 
Signed-off-by: Jean Delvare

i2c: Drop redundant i2c_driver.list

2008-01-27T17:14:49+00:00

i2c_driver.list is superfluous, this list duplicates the one
maintained by the driver core. Drop it.

Signed-off-by: Jean Delvare 
Acked-by: David Brownell

i2c: Drop redundant i2c_adapter.list

2008-01-27T17:14:48+00:00

i2c_adapter.list is superfluous, this list duplicates the one
maintained by the driver core. Drop it.

Signed-off-by: Jean Delvare 
Acked-by: David Brownell

i2c: Change prototypes of refcounting functions

2008-01-27T17:14:48+00:00

Use more standard prototypes for i2c_use_client() and
i2c_release_client(). The former now returns a pointer to the client,
and the latter no longer returns anything. This matches what all other
subsystems do.

Signed-off-by: Jean Delvare 
Cc: David Brownell

i2c: Use the driver model reference counting

2008-01-27T17:14:48+00:00

Don't implement our own reference counting mechanism for i2c clients
when the driver model already has one.

Signed-off-by: Jean Delvare 
Cc: David Brownell

i2c: Constify client address data

2008-01-27T17:14:46+00:00

This patch allows much of the I2C client address data to move from initdata
into text.
    
Signed-off-by: Mark M. Hoffman 
Signed-off-by: Jean Delvare

i2c: Make i2c_check_addr static

2007-11-15T18:24:02+00:00

i2c_check_addr is only used inside i2c-core now, so we can make it
static and stop exporting it. Thanks to David Brownell for noticing.

Signed-off-by: Jean Delvare