drm/i915/bmg: BMG should re-use MTL's south display logic

Battlemage's south display is the same as Meteor Lake's, including the
need to invert the HPD pins, which Lunar Lake does not need.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240430172850.1881525-14-radhakrishna.sripada@intel.com

diff --git a/drivers/gpu/drm/i915/soc/intel_pch.c b/drivers/gpu/drm/i915/soc/intel_pch.c
index 3cad6dac06b01128afd25f8ef20a929c6899dcbc..542eea50093ca233aeebf5408ff25407a83efb1b 100644 (file)
--- a/drivers/gpu/drm/i915/soc/intel_pch.c
+++ b/drivers/gpu/drm/i915/soc/intel_pch.c
@@ -218,10 +218,10 @@ void intel_detect_pch(struct drm_i915_private *dev_priv)
        if (DISPLAY_VER(dev_priv) >= 20) {
                dev_priv->pch_type = PCH_LNL;
                return;
-       } else if (IS_METEORLAKE(dev_priv)) {
+       } else if (IS_BATTLEMAGE(dev_priv) || IS_METEORLAKE(dev_priv)) {
                /*
                 * Both north display and south display are on the SoC die.
-                * The real PCH is uninvolved in display.
+                * The real PCH (if it even exists) is uninvolved in display.
                 */
                dev_priv->pch_type = PCH_MTL;
                return;