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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #22 from Alex Deucher <agd5f at 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?

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