[Bug 41121] Apple Thunderbolt display is not initialized when plugged into iMac 12,2 (Radeon 6870)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41121

--- Comment #8 from Alex Deucher <agd5f at yahoo.com> 2011-09-29 08:01:27 PDT ---
It should still be retrying, just restructured slightly.  The retry logic just
moved into radeon_dp_i2c_aux_ch(), radeon_dp_aux_native_write(), and
radeon_dp_aux_native_read(), e.g.,

               else if ((ack & AUX_NATIVE_REPLY_MASK) ==
AUX_NATIVE_REPLY_DEFER)
                       udelay(400);

Perhaps the delay is causing a problem.  Does removing the udelay(400); help?

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