[Nouveau] [PATCH] drm/nouveau: suspend to D3hot, not to D3cold

[Dave Airlie]

On Wed, Oct 9, 2013 at 1:36 AM, Maarten Lankhorst
<maarten.lankhorst at canonical.com> wrote:
> In the autumn and winter it's considered bad form to set power state to D3cold, it might
> cause the device to freeze to death. This is also the case in the other seasons, so any
> device in the southern hemisphere is affected too.
>
> D3cold is not a valid state in a call to pci_set_power_state, only up to D3hot is allowed.

NAK,

pci_set_power_state calls pci_platform_pm->set_state, which should be
acpi_pci_set_power_state, which clearly accepts D3cold as a parameter.

The only reason the HDMI audio driver doesn't use D3cold is because it
has no acpi handle for the device.

Dave.