Re: [PATCH] i2c-mpc: use the cell-index property to enumerate the I2C adapters

Grant Likely wrote:

It is better to walk the list of i2c adapters and look for one that
has the matching node pointer.  It really isn't an expensive operation
to do it that way.

That's what I was thinking.  I can't figure out how to walk the list, though.  i2c_get_adapter() takes an adapter number, but I don't think this is going to work:

unsigned int i = 0;
struct i2c_adapter adap = i2c_get_adapter(0);

while (adap) {
	if (adap->nr == nr)
		break;
	adap = i2c_get_adapter(++i);
}

-- 
Timur Tabi
Linux kernel developer at Freescale