i2c issue on Panda with DT boot, v3.10-rc4

[Tomi Valkeinen <tomi.valkeinen@ti.com>]

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Hi,

I was testing DT boot with 3.10-rc1 and Pandaboard, and couldn't get the
DVI output's EDID reading to work. Testing with i2cget and i2cdump, I
see that I can read individual bytes with i2cget, but using i2cdump
doesn't work, it just shows 'XX'es.

The same issue is there with 3.10-rc4, although with that one I get
timeouts with i2cdump, whereas there were no timeouts with -rc1.

# i2cget -y 2 0x50 0x10
0x0a
# i2cget -y 2 0x50 0x20
0x0f
# i2cget -y 2 0x50 0x30
0x01
# i2cget -y 2 0x50 0x40
0x36
# i2cget -y 2 0x50 0x50
0x4c
# i2cdump -y 2 0x50
No size specified (using byte-data access)
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 [   72.814086] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   73.825134] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   74.835327] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   76.097167] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   77.160736] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   78.174682] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   79.194824] omap_i2c 48060000.i2c: timeout waiting for bus ready
XX [   80.242980] omap_i2c 48060000.i2c: timeout waiting for bus ready

i2cdump works fine with non-DT boot (but the i2c bus number is 3).

Any ideas?

 Tomi


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