linux-toradex.git/drivers/i2c/i2c-dev.c, branch v2.6.27.20

i2c-dev: Return correct error code on class_create() failure

2008-09-24T11:39:21+00:00

We need to convert the error pointer from class_create(), else we'll return the
successful return code from register_chrdev() on failure.

Signed-off-by: Sven Wegener 
Signed-off-by: Jean Delvare

i2c: correct some size_t printk formats

2008-08-10T20:56:16+00:00

Fix various printk format strings where %zd was passed a size_t;
those should be %zu instead.  (Courtesy of a version of GCC which
warns when these details are wrong.)

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

device create: i2c: convert device_create to device_create_drvdata

2008-07-22T04:54:42+00:00

device_create() is race-prone, so use the race-free
device_create_drvdata() instead as device_create() is going away.

Cc: Jean Delvare 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

2008-07-15T18:16:05+00:00

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (56 commits)
  i2c: Add detection capability to new-style drivers
  i2c: Call client_unregister for new-style devices too
  i2c: Clean up old chip drivers
  i2c-ibm_iic: Register child nodes
  i2c: New-style EEPROM driver using device IDs
  i2c: Export the i2c_bus_type symbol
  i2c-au1550: Fix PM support
  i2c-dev: Delete empty detach_client callback
  i2c: Drop stray references to lm_sensors
  i2c: Check for ACPI resource conflicts
  i2c-ocores: basic PM support
  i2c-sibyte: SWARM I2C board initialization
  i2c-i801: Fix handling of error conditions
  i2c-i801: Rename local variable temp to status
  i2c-i801: Properly report bus arbitration loss
  i2c-i801: Remove verbose debugging messages
  i2c-algo-pcf: Drop unused struct members
  i2c-algo-pcf: Multi-master lost-arbitration improvement
  i2c: Deprecate the legacy gpio drivers
  i2c-pxa: Initialize early
  ...

i2c-dev: Delete empty detach_client callback

2008-07-14T20:38:34+00:00

Implementing detach_client is optional, so there is no point in
an empty implementation.

Likewise, i2c driver IDs are optional, and we don't need one.

Signed-off-by: Jean Delvare

i2c: Push ioctl BKL down into the i2c code

2008-07-14T20:38:27+00:00

This is part of the effort to get rid of the BKL.

[JD: In fact i2c-dev doesn't need more locking than is already done
for the other i2c drivers, so we can simply switch to unlocked_ioctl.]

Signed-off-by: Alan Cox 
Signed-off-by: Jean Delvare

i2c: cdev lock_kernel() pushdown

2008-05-18T21:43:40+00:00

Signed-off-by: Jonathan Corbet

i2c-dev: Split i2cdev_ioctl

2008-04-22T20:16:47+00:00

Split the handling of the I2C_RDWR and I2C_SMBUS ioctls to their own
functions. This limits the stack usage, saves one level of indentation
and makes the code more readable.

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: Spelling fixes

2008-01-14T20:53:30+00:00

[JD: One more fix in i2c-dev.]

Signed-off-by: Joe Perches 
Signed-off-by: Jean Delvare