1 files changed, 61 insertions, 41 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index e95bde5cf060..0f1ec2a98cc8 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -31,6 +31,7 @@
 #include <drm/drm_privacy_screen_consumer.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_audio.h"
 #include "intel_audio_regs.h"
 #include "intel_backlight.h"
@@ -56,6 +57,7 @@
 #include "intel_hdcp.h"
 #include "intel_hdmi.h"
 #include "intel_hotplug.h"
+#include "intel_hti.h"
 #include "intel_lspcon.h"
 #include "intel_mg_phy_regs.h"
 #include "intel_pps.h"
@@ -846,22 +848,65 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 }
 
 static enum intel_display_power_domain
-intel_ddi_main_link_aux_domain(struct intel_digital_port *dig_port)
+intel_ddi_main_link_aux_domain(struct intel_digital_port *dig_port,
+			       const struct intel_crtc_state *crtc_state)
 {
-	/* ICL+ HW requires corresponding AUX IOs to be powered up for PSR with
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+
+	/*
+	 * ICL+ HW requires corresponding AUX IOs to be powered up for PSR with
 	 * DC states enabled at the same time, while for driver initiated AUX
 	 * transfers we need the same AUX IOs to be powered but with DC states
-	 * disabled. Accordingly use the AUX power domain here which leaves DC
-	 * states enabled.
-	 * However, for non-A AUX ports the corresponding non-EDP transcoders
-	 * would have already enabled power well 2 and DC_OFF. This means we can
-	 * acquire a wider POWER_DOMAIN_AUX_{B,C,D,F} reference instead of a
-	 * specific AUX_IO reference without powering up any extra wells.
-	 * Note that PSR is enabled only on Port A even though this function
-	 * returns the correct domain for other ports too.
+	 * disabled. Accordingly use the AUX_IO_<port> power domain here which
+	 * leaves DC states enabled.
+	 *
+	 * Before MTL TypeC PHYs (in all TypeC modes and both DP/HDMI) also require
+	 * AUX IO to be enabled, but all these require DC_OFF to be enabled as
+	 * well, so we can acquire a wider AUX_<port> power domain reference
+	 * instead of a specific AUX_IO_<port> reference without powering up any
+	 * extra wells.
 	 */
-	return dig_port->aux_ch == AUX_CH_A ? POWER_DOMAIN_AUX_IO_A :
-					      intel_aux_power_domain(dig_port);
+	if (intel_encoder_can_psr(&dig_port->base))
+		return intel_display_power_aux_io_domain(i915, dig_port->aux_ch);
+	else if (DISPLAY_VER(i915) < 14 &&
+		 (intel_crtc_has_dp_encoder(crtc_state) ||
+		  intel_phy_is_tc(i915, phy)))
+		return intel_aux_power_domain(dig_port);
+	else
+		return POWER_DOMAIN_INVALID;
+}
+
+static void
+main_link_aux_power_domain_get(struct intel_digital_port *dig_port,
+			       const struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum intel_display_power_domain domain =
+		intel_ddi_main_link_aux_domain(dig_port, crtc_state);
+
+	drm_WARN_ON(&i915->drm, dig_port->aux_wakeref);
+
+	if (domain == POWER_DOMAIN_INVALID)
+		return;
+
+	dig_port->aux_wakeref = intel_display_power_get(i915, domain);
+}
+
+static void
+main_link_aux_power_domain_put(struct intel_digital_port *dig_port,
+			       const struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum intel_display_power_domain domain =
+		intel_ddi_main_link_aux_domain(dig_port, crtc_state);
+	intel_wakeref_t wf;
+
+	wf = fetch_and_zero(&dig_port->aux_wakeref);
+	if (!wf)
+		return;
+
+	intel_display_power_put(i915, domain, wf);
 }
 
 static void intel_ddi_get_power_domains(struct intel_encoder *encoder,
@@ -869,7 +914,6 @@ static void intel_ddi_get_power_domains(struct intel_encoder *encoder,
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_digital_port *dig_port;
-	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 
 	/*
 	 * TODO: Add support for MST encoders. Atm, the following should never
@@ -888,17 +932,7 @@ static void intel_ddi_get_power_domains(struct intel_encoder *encoder,
 								   dig_port->ddi_io_power_domain);
 	}
 
-	/*
-	 * AUX power is only needed for (e)DP mode, and for HDMI mode on TC
-	 * ports.
-	 */
-	if (intel_crtc_has_dp_encoder(crtc_state) ||
-	    intel_phy_is_tc(dev_priv, phy)) {
-		drm_WARN_ON(&dev_priv->drm, dig_port->aux_wakeref);
-		dig_port->aux_wakeref =
-			intel_display_power_get(dev_priv,
-						intel_ddi_main_link_aux_domain(dig_port));
-	}
+	main_link_aux_power_domain_get(dig_port, crtc_state);
 }
 
 void intel_ddi_enable_pipe_clock(struct intel_encoder *encoder,
@@ -2737,10 +2771,7 @@ static void intel_ddi_post_disable(struct intel_atomic_state *state,
 		intel_ddi_post_disable_dp(state, encoder, old_crtc_state,
 					  old_conn_state);
 
-	if (intel_crtc_has_dp_encoder(old_crtc_state) || is_tc_port)
-		intel_display_power_put(dev_priv,
-					intel_ddi_main_link_aux_domain(dig_port),
-					fetch_and_zero(&dig_port->aux_wakeref));
+	main_link_aux_power_domain_put(dig_port, old_crtc_state);
 
 	if (is_tc_port)
 		intel_tc_port_put_link(dig_port);
@@ -3061,12 +3092,7 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
 	if (is_tc_port)
 		intel_tc_port_get_link(dig_port, crtc_state->lane_count);
 
-	if (intel_crtc_has_dp_encoder(crtc_state) || is_tc_port) {
-		drm_WARN_ON(&dev_priv->drm, dig_port->aux_wakeref);
-		dig_port->aux_wakeref =
-			intel_display_power_get(dev_priv,
-						intel_ddi_main_link_aux_domain(dig_port));
-	}
+	main_link_aux_power_domain_get(dig_port, crtc_state);
 
 	if (is_tc_port && !intel_tc_port_in_tbt_alt_mode(dig_port))
 		/*
@@ -4113,12 +4139,6 @@ intel_ddi_max_lanes(struct intel_digital_port *dig_port)
 	return max_lanes;
 }
 
-static bool hti_uses_phy(struct drm_i915_private *i915, enum phy phy)
-{
-	return i915->hti_state & HDPORT_ENABLED &&
-	       i915->hti_state & HDPORT_DDI_USED(phy);
-}
-
 static enum hpd_pin xelpd_hpd_pin(struct drm_i915_private *dev_priv,
 				  enum port port)
 {
@@ -4247,7 +4267,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	 * driver.  In that case we should skip initializing the corresponding
 	 * outputs.
 	 */
-	if (hti_uses_phy(dev_priv, phy)) {
+	if (intel_hti_uses_phy(dev_priv, phy)) {
 		drm_dbg_kms(&dev_priv->drm, "PORT %c / PHY %c reserved by HTI\n",
 			    port_name(port), phy_name(phy));
 		return;