[Intel-gfx] [PATCH 28/37] drm/i915/dg1: Enable first 2 ports for DG1

[Lucas De Marchi]

From: Aditya Swarup <aditya.swarup at intel.com>

Enable PORTS A and B for DG1 initially, the other ports still need more
plumbing code in order to be enabled.

Cc: Clinton Taylor <Clinton.A.Taylor at intel.com>
Cc: Matt Roper <matthew.d.roper at intel.com>
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index a17319d75b44..e99dc6658b25 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7213,6 +7213,9 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy)
 {
 	if (phy == PHY_NONE)
 		return false;
+	else if (IS_DG1(dev_priv))
+		/* FIXME: Enable only two ports for now */
+		return phy <= PHY_B;
 	else if (IS_ROCKETLAKE(dev_priv))
 		return phy <= PHY_D;
 	else if (IS_ELKHARTLAKE(dev_priv))
@@ -7225,7 +7228,7 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy)
 
 bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy)
 {
-	if (IS_ROCKETLAKE(dev_priv))
+	if (IS_ROCKETLAKE(dev_priv) || IS_DG1(dev_priv))
 		return false;
 	else if (INTEL_GEN(dev_priv) >= 12)
 		return phy >= PHY_D && phy <= PHY_I;
@@ -16736,7 +16739,11 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 	if (!HAS_DISPLAY(dev_priv) || !INTEL_DISPLAY_ENABLED(dev_priv))
 		return;
 
-	if (IS_ROCKETLAKE(dev_priv)) {
+	if (IS_DG1(dev_priv)) {
+		/* FIXME: Enable only two ports for now */
+		intel_ddi_init(dev_priv, PORT_A);
+		intel_ddi_init(dev_priv, PORT_B);
+	} else if (IS_ROCKETLAKE(dev_priv)) {
 		/*
 		 * If HTI (aka HDPORT) is enabled at boot, it may have taken
 		 * over some of the PHYs and made them unavailable to the
-- 
2.26.2