[Bug 68235] Display freezes after login with kernel 3.11.0-rc5 on Cayman with dpm=1

https://bugs.freedesktop.org/show_bug.cgi?id=68235

--- Comment #22 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #20)

Ok, if I apply the whole suggested patch but the following, it hangs: @@ -4152,14 +4152,14 @@ int ni_dpm_init(struct radeon_device *rdev) } ni_pi->mclk_rtt_mode_threshold = eg_pi->mclk_edc_wr_enable_threshold;

• pi->voltage_control =

• radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, 0);
  

• pi->voltage_control = false;

+// radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, 0);

• pi->mvdd_control =

• radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_MVDDC, 0);
  

• pi->mvdd_control = false;

+// radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_MVDDC, 0);

• eg_pi->vddci_control =

• radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDCI, 0);
  

• eg_pi->vddci_control = false;

+// radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDCI, 0);

rv770_get_engine_memory_ss(rdev);

So does just applying this portion of the patch by itself fix the hang?