diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 2bf5aca..8c82607 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -69,12 +69,11 @@ static bool intel_crt_get_hw_state(struct intel_encoder *encoder,
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crt *crt = intel_encoder_to_crt(encoder);
-	enum intel_display_power_domain power_domain;
 	u32 tmp;
 	bool ret;
 
-	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						encoder->power_domain))
 		return false;
 
 	ret = false;
@@ -91,7 +90,7 @@ static bool intel_crt_get_hw_state(struct intel_encoder *encoder,
 
 	ret = true;
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, encoder->power_domain);
 
 	return ret;
 }
@@ -676,7 +675,6 @@ intel_crt_detect(struct drm_connector *connector, bool force)
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
 	struct intel_crt *crt = intel_attached_crt(connector);
 	struct intel_encoder *intel_encoder = &crt->base;
-	enum intel_display_power_domain power_domain;
 	enum drm_connector_status status;
 	struct intel_load_detect_pipe tmp;
 	struct drm_modeset_acquire_ctx ctx;
@@ -689,8 +687,7 @@ intel_crt_detect(struct drm_connector *connector, bool force)
 	if (dmi_check_system(intel_spurious_crt_detect))
 		return connector_status_disconnected;
 
-	power_domain = intel_display_port_power_domain(intel_encoder);
-	intel_display_power_get(dev_priv, power_domain);
+	intel_display_power_get(dev_priv, intel_encoder->power_domain);
 
 	if (I915_HAS_HOTPLUG(dev_priv)) {
 		/* We can not rely on the HPD pin always being correctly wired
@@ -745,7 +742,7 @@ intel_crt_detect(struct drm_connector *connector, bool force)
 	drm_modeset_acquire_fini(&ctx);
 
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, intel_encoder->power_domain);
 	return status;
 }
 
@@ -761,12 +758,10 @@ static int intel_crt_get_modes(struct drm_connector *connector)
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crt *crt = intel_attached_crt(connector);
 	struct intel_encoder *intel_encoder = &crt->base;
-	enum intel_display_power_domain power_domain;
 	int ret;
 	struct i2c_adapter *i2c;
 
-	power_domain = intel_display_port_power_domain(intel_encoder);
-	intel_display_power_get(dev_priv, power_domain);
+	intel_display_power_get(dev_priv, intel_encoder->power_domain);
 
 	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->vbt.crt_ddc_pin);
 	ret = intel_crt_ddc_get_modes(connector, i2c);
@@ -778,7 +773,7 @@ static int intel_crt_get_modes(struct drm_connector *connector)
 	ret = intel_crt_ddc_get_modes(connector, i2c);
 
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, intel_encoder->power_domain);
 
 	return ret;
 }
@@ -904,6 +899,8 @@ void intel_crt_init(struct drm_i915_private *dev_priv)
 
 	crt->adpa_reg = adpa_reg;
 
+	crt->base.power_domain = POWER_DOMAIN_PORT_CRT;
+
 	crt->base.compute_config = intel_crt_compute_config;
 	if (HAS_PCH_SPLIT(dev_priv)) {
 		crt->base.disable = pch_disable_crt;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index cd6fedd..b0c4d23 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1316,12 +1316,11 @@ bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
 	enum port port = intel_ddi_get_encoder_port(intel_encoder);
 	enum pipe pipe = 0;
 	enum transcoder cpu_transcoder;
-	enum intel_display_power_domain power_domain;
 	uint32_t tmp;
 	bool ret;
 
-	power_domain = intel_display_port_power_domain(intel_encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						intel_encoder->power_domain))
 		return false;
 
 	if (!intel_encoder->get_hw_state(intel_encoder, &pipe)) {
@@ -1363,7 +1362,7 @@ bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
 	}
 
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, intel_encoder->power_domain);
 
 	return ret;
 }
@@ -1374,13 +1373,12 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	enum port port = intel_ddi_get_encoder_port(encoder);
-	enum intel_display_power_domain power_domain;
 	u32 tmp;
 	int i;
 	bool ret;
 
-	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						encoder->power_domain))
 		return false;
 
 	ret = false;
@@ -1437,7 +1435,7 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 				  "(PHY_CTL %08x)\n", port_name(port), tmp);
 	}
 
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, encoder->power_domain);
 
 	return ret;
 }
@@ -2216,6 +2214,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	intel_dig_port->max_lanes = max_lanes;
 
 	intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
+	intel_encoder->power_domain = intel_port_to_power_domain(port);
 	intel_encoder->port = port;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	intel_encoder->cloneable = 0;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1e70776..585d149 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5570,7 +5570,7 @@ static void i9xx_pfit_enable(struct intel_crtc *crtc)
 	I915_WRITE(BCLRPAT(crtc->pipe), 0);
 }
 
-static enum intel_display_power_domain port_to_power_domain(enum port port)
+enum intel_display_power_domain intel_port_to_power_domain(enum port port)
 {
 	switch (port) {
 	case PORT_A:
@@ -5589,33 +5589,6 @@ static enum intel_display_power_domain port_to_power_domain(enum port port)
 	}
 }
 
-enum intel_display_power_domain
-intel_display_port_power_domain(struct intel_encoder *intel_encoder)
-{
-	struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
-	struct intel_digital_port *intel_dig_port;
-
-	switch (intel_encoder->type) {
-	case INTEL_OUTPUT_UNKNOWN:
-		/* Only DDI platforms should ever use this output type */
-		WARN_ON_ONCE(!HAS_DDI(dev_priv));
-	case INTEL_OUTPUT_DP:
-	case INTEL_OUTPUT_HDMI:
-	case INTEL_OUTPUT_EDP:
-		intel_dig_port = enc_to_dig_port(&intel_encoder->base);
-		return port_to_power_domain(intel_dig_port->port);
-	case INTEL_OUTPUT_DP_MST:
-		intel_dig_port = enc_to_mst(&intel_encoder->base)->primary;
-		return port_to_power_domain(intel_dig_port->port);
-	case INTEL_OUTPUT_ANALOG:
-		return POWER_DOMAIN_PORT_CRT;
-	case INTEL_OUTPUT_DSI:
-		return POWER_DOMAIN_PORT_DSI;
-	default:
-		return POWER_DOMAIN_PORT_OTHER;
-	}
-}
-
 static u64 get_crtc_power_domains(struct drm_crtc *crtc,
 				  struct intel_crtc_state *crtc_state)
 {
@@ -5639,7 +5612,7 @@ static u64 get_crtc_power_domains(struct drm_crtc *crtc,
 	drm_for_each_encoder_mask(encoder, dev, crtc_state->base.encoder_mask) {
 		struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
 
-		mask |= BIT_ULL(intel_display_port_power_domain(intel_encoder));
+		mask |= BIT_ULL(intel_encoder->power_domain);
 	}
 
 	if (HAS_DDI(dev_priv) && crtc_state->has_audio)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e2e4766..2e605ad 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2496,12 +2496,11 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
 	enum port port = dp_to_dig_port(intel_dp)->port;
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	enum intel_display_power_domain power_domain;
 	u32 tmp;
 	bool ret;
 
-	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						encoder->power_domain))
 		return false;
 
 	ret = false;
@@ -2537,7 +2536,7 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
 	ret = true;
 
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, encoder->power_domain);
 
 	return ret;
 }
@@ -6086,6 +6085,7 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
 	intel_dig_port->max_lanes = 4;
 
 	intel_encoder->type = INTEL_OUTPUT_DP;
+	intel_encoder->power_domain = intel_port_to_power_domain(port);
 	if (IS_CHERRYVIEW(dev_priv)) {
 		if (port == PORT_D)
 			intel_encoder->crtc_mask = 1 << 2;
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 6a85d38..d94fd4b 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -548,6 +548,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
 			 DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
 
 	intel_encoder->type = INTEL_OUTPUT_DP_MST;
+	intel_encoder->power_domain = intel_dig_port->base.power_domain;
 	intel_encoder->port = intel_dig_port->port;
 	intel_encoder->crtc_mask = 0x7;
 	intel_encoder->cloneable = 0;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3ddeaa6..c8873c0 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -249,6 +249,7 @@ struct intel_encoder {
 	void (*suspend)(struct intel_encoder *);
 	int crtc_mask;
 	enum hpd_pin hpd_pin;
+	enum intel_display_power_domain power_domain;
 	/* for communication with audio component; protected by av_mutex */
 	const struct drm_connector *audio_connector;
 };
@@ -1420,8 +1421,7 @@ int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
 bool intel_crtc_active(struct intel_crtc *crtc);
 void hsw_enable_ips(struct intel_crtc *crtc);
 void hsw_disable_ips(struct intel_crtc *crtc);
-enum intel_display_power_domain
-intel_display_port_power_domain(struct intel_encoder *intel_encoder);
+enum intel_display_power_domain intel_port_to_power_domain(enum port port);
 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
 				 struct intel_crtc_state *pipe_config);
 
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index c98234e..517a943 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -768,14 +768,13 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
-	enum intel_display_power_domain power_domain;
 	enum port port;
 	bool active = false;
 
 	DRM_DEBUG_KMS("\n");
 
-	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						encoder->power_domain))
 		return false;
 
 	/*
@@ -831,7 +830,7 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
 	}
 
 out_put_power:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, encoder->power_domain);
 
 	return active;
 }
@@ -1509,6 +1508,7 @@ void intel_dsi_init(struct drm_i915_private *dev_priv)
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
 	intel_encoder->port = port;
+
 	/*
 	 * On BYT/CHV, pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI
 	 * port C. BXT isn't limited like this.
@@ -1595,6 +1595,7 @@ void intel_dsi_init(struct drm_i915_private *dev_priv)
 	}
 
 	intel_encoder->type = INTEL_OUTPUT_DSI;
+	intel_encoder->power_domain = POWER_DOMAIN_PORT_DSI;
 	intel_encoder->cloneable = 0;
 	drm_connector_init(dev, connector, &intel_dsi_connector_funcs,
 			   DRM_MODE_CONNECTOR_DSI);
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 50da89d..6025839 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -515,6 +515,7 @@ void intel_dvo_init(struct drm_i915_private *dev_priv)
 				 "DVO %c", port_name(port));
 
 		intel_encoder->type = INTEL_OUTPUT_DVO;
+		intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
 		intel_encoder->port = port;
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index a580de8..c2184f7 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -902,12 +902,11 @@ static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder,
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
-	enum intel_display_power_domain power_domain;
 	u32 tmp;
 	bool ret;
 
-	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						encoder->power_domain))
 		return false;
 
 	ret = false;
@@ -927,7 +926,7 @@ static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder,
 	ret = true;
 
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, encoder->power_domain);
 
 	return ret;
 }
@@ -1981,6 +1980,7 @@ void intel_hdmi_init(struct drm_i915_private *dev_priv,
 	}
 
 	intel_encoder->type = INTEL_OUTPUT_HDMI;
+	intel_encoder->power_domain = intel_port_to_power_domain(port);
 	intel_encoder->port = port;
 	if (IS_CHERRYVIEW(dev_priv)) {
 		if (port == PORT_D)
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 9ca4dc4..8b942ef 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -91,12 +91,11 @@ static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
-	enum intel_display_power_domain power_domain;
 	u32 tmp;
 	bool ret;
 
-	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv,
+						encoder->power_domain))
 		return false;
 
 	ret = false;
@@ -114,7 +113,7 @@ static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
 	ret = true;
 
 out:
-	intel_display_power_put(dev_priv, power_domain);
+	intel_display_power_put(dev_priv, encoder->power_domain);
 
 	return ret;
 }
@@ -1066,6 +1065,7 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
 
 	intel_encoder->type = INTEL_OUTPUT_LVDS;
+	intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
 	intel_encoder->port = PORT_NONE;
 	intel_encoder->cloneable = 0;
 	if (HAS_PCH_SPLIT(dev_priv))
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 2ad1390..816a6f5 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2981,6 +2981,7 @@ bool intel_sdvo_init(struct drm_i915_private *dev_priv,
 	/* encoder type will be decided later */
 	intel_encoder = &intel_sdvo->base;
 	intel_encoder->type = INTEL_OUTPUT_SDVO;
+	intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
 	intel_encoder->port = port;
 	drm_encoder_init(&dev_priv->drm, &intel_encoder->base,
 			 &intel_sdvo_enc_funcs, 0,
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index eb692e4..6ed1a3c 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1621,6 +1621,7 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
 
 	intel_encoder->type = INTEL_OUTPUT_TVOUT;
+	intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
 	intel_encoder->port = PORT_NONE;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 	intel_encoder->cloneable = 0;
