Commit Graph

9 Commits

Author SHA1 Message Date
Boris Brezillon
0478226564 i2c: Retain info->of_node in i2c_new_device()
Currently, of_i2c_register_devices() is responsible for retaining
info->of_node, but we're about to expose a function to parse I2C board
info without registering the I2C device.

We could possibly let this function retain ->of_node, but this approach
is prone to reference leak since people will have to remember to call
of_node_put() if something goes wrong between the OF node parsing and
the registration step.
Let's just retain the ->of_node in i2c_new_register() instead.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-05-22 13:40:25 +02:00
Boris Brezillon
4fad8868af i2c: Get rid of i2c_board_info->archdata
The only user of i2c_board_info->archdata is the OF parsing code and it
just pass a zero-initialized object which has the same effect as leaving
->archdata to NULL since the client object is allocated with kzalloc().

Get rid of this useless field.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-05-15 10:42:20 +02:00
Wolfram Sang
a1671af286 i2c: of: simplify reading the "reg" property
of_get_property() is a bit cumbersome to use. Replace it with the newer
of_property_read_u32() for more readable code.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-26 20:40:46 +01:00
Wolfram Sang
4f3ae38acb i2c: of: remove duplicated check for valid address
The very same check is done when calling i2c_new_device(). Remove it
here to avoid code duplication.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-26 20:40:46 +01:00
Wolfram Sang
c49b0e0775 i2c: of: rename variable to meet expectations
'result' is mostly used in the kernel as int for functions returning
errno on failure. Here it is a pointer to the client struct, so let's
call it this way (as the parent function does, too).

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-26 20:40:46 +01:00
Wolfram Sang
e6db2d3278 i2c: of: make ref counting more visible
When debugging a ref counting problem, I overlooked this snipplet a few
times. Might be taste, but I think the new location is visually easier
recognizable.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-26 20:40:46 +01:00
Wolfram Sang
f1c87ceb02 i2c: of: change log level of failed device creation
If we cannot create a device, this is an error, not a warning. Fix the
log level.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-26 20:40:46 +01:00
Rob Herring
453a237ccf i2c: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-07-31 17:19:35 +02:00
Wolfram Sang
5bf4fa7dae i2c: break out OF support into separate file
Also removes some ifdeffery.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-05-31 21:01:04 +02:00