leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/i915: vlv: check port power domain instead of only D0 for eDP VDD on

Browse Source 
Some platforms need additional power domains to be on in addition to the
device D0 state to access the panel registers.

Suggested by Daniel.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76987
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Imre Deak 2014-04-14 20:24:33 +03:00 committed by Daniel Vetter
parent f301b1e116
commit bb4932c4f1
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/intel_dp.c
View File

@ -313,8 +313,12 @@ static bool edp_have_panel_vdd(struct intel_dp *intel_dp)
{
struct drm_device *dev = intel_dp_to_dev(intel_dp);
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
struct intel_encoder *intel_encoder = &intel_dig_port->base;
enum intel_display_power_domain power_domain;
return !dev_priv->pm.suspended &&
power_domain = intel_display_port_power_domain(intel_encoder);
return intel_display_power_enabled(dev_priv, power_domain) &&
(I915_READ(_pp_ctrl_reg(intel_dp)) & EDP_FORCE_VDD) != 0;
}