drm/i915: take a power domain ref only when needed during HDMI detect
Suggested by Ville.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1447959301-1263-1-git-send-email-imre.deak@intel.com
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index fd86cef..17ced03 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1351,14 +1351,15 @@
struct edid *edid = NULL;
bool connected = false;
- intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
+ if (force) {
+ intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
- if (force)
edid = drm_get_edid(connector,
intel_gmbus_get_adapter(dev_priv,
intel_hdmi->ddc_bus));
- intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
+ intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
+ }
to_intel_connector(connector)->detect_edid = edid;
if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {