Hi

On 11/4/2011 11:42 PM, Grant Likely wrote:

It is not legal for two device nodes to have overlapping 'reg' regions
(unless one is a child of the other), so by extension it is not okay
for two nodes to have the same 'name@addr'.  However, it is perfectly
acceptable and encouraged for two nodes at different addresses to
start with the same value for 'name@'.  This is called the generic
names recommended practice, and it can also be found in the ePAPR
documentation on node names.

If you want to have both host and device drivers bound to a single
device for OTG mode, then you should use a wrapper driver in Linux
that binds to the single node and instantiates each of the interfaces
as a child device.  For an example take a look at
drivers/usb/host/fsl-mph-dr-of.c.

Currently we have two platform devices one for OTG and one for host,
corresponding drivers for them. If I would like to keep it this way, the
device tree becomes something like below

hsusb0-otg: usb-otg@0xa6000000 {
	compatible = "qcom,hsusb-otg";
        ---
};

hsusb0-device: usb-gadget@0xa6000000 {
	compatible = "qcom,hsusb-device";
        ---
};

hsusb0-host: usb@0xa6000000 {
	compatible = "qcom,hsusb-host", "usb-ehci";
        ---
};

Are you okay with above naming convention?

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