Hi,
On 2/3/20 2:12 PM, Ville Syrjälä wrote:
On Sat, Feb 01, 2020 at 10:31:59AM +, Chris Wilson wrote:
To write to the DISPLAY_PHY_CONTROL requires holding the powerwells,
which during early resume we have not yet acquired until later in
intel_display_power_init_hw(). So compute the initial
Quoting Ville Syrjälä (2020-02-03 13:12:03)
> On Sat, Feb 01, 2020 at 10:31:59AM +, Chris Wilson wrote:
> What I don't undestand is what actually changed to cause this? Did we
> reorganize something in the init/resume sequence that previously forced
> the display power well on before this
On Sat, Feb 01, 2020 at 10:31:59AM +, Chris Wilson wrote:
> To write to the DISPLAY_PHY_CONTROL requires holding the powerwells,
> which during early resume we have not yet acquired until later in
> intel_display_power_init_hw(). So compute the initial chv_phy_control,
> but leave the HW unset
To write to the DISPLAY_PHY_CONTROL requires holding the powerwells,
which during early resume we have not yet acquired until later in
intel_display_power_init_hw(). So compute the initial chv_phy_control,
but leave the HW unset until we first acquire the powerwell.
<7> [120.055984] i915
