Hi,
I have a short question about the relations between i2c and devicetrees.
I was wondering
is the device part of the compatible string of a (trivial) i2c device
instanciated via devicetree _always_ identical to name in i2c_client.name ?
Or can it be somehow different?
Here's a short example:
device tree:
test {
compatible = "vendor,device1", "vendor,device2";
reg = <0x20>;
}
The driver has in its id table only this entry:
static const struct i2c_device_id my_i2c_table[] = {
{"device2", 0},
{},
};
-> "vendor,device2" matches and the driver is called.
--> Is i2c_client.name guaranteed to be "device2" ?
Second question:
Where would you probably add an i2c tpm?
Would you add it to
Documentation/devicetree/bindings/i2c/trivial-devices.txt
or if it's not trivial add it to a new file under
Documentation/devicetree/bindings/i2c/
or create a new folder
Documentation/devicetree/bindings/tpm
as there probably are more i2c tpms to come in the near future.
I'd probably prefer the first one, whereas Google already uses the second
option:
http://git.chromium.org/gitweb/?p=chromiumos/third_party/kernel.git;a=history;f=Documentation/devicetree/bindings/tpm;hb=refs/heads/chromeos-3.4
Thanks,
PeterH
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