[PATCH v6 6/8] drm/i915/display: Use platform check in HAS_LT_PHY()

[Matt Atwood <matthew.s.atwood@intel.com>]

From: Gustavo Sousa <gustavo.sousa@intel.com>

NVL uses the Lake Tahoe PHY for display output and the driver recently
added the macro HAS_LT_PHY() to allow selecting code paths specific for
that type of PHY.

While NVL uses Xe3p_LPD as display IP, the type of PHY is actually
defined at the SoC level, so use a platform check instead of display
version.

Bspec: 74199
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---
 drivers/gpu/drm/i915/display/intel_lt_phy.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy.h b/drivers/gpu/drm/i915/display/intel_lt_phy.h
index b7911acd7dcd..0820968e51b5 100644
--- a/drivers/gpu/drm/i915/display/intel_lt_phy.h
+++ b/drivers/gpu/drm/i915/display/intel_lt_phy.h
@@ -42,6 +42,6 @@ void intel_xe3plpd_pll_enable(struct intel_encoder *encoder,
 			      const struct intel_crtc_state *crtc_state);
 void intel_xe3plpd_pll_disable(struct intel_encoder *encoder);
 
-#define HAS_LT_PHY(display) (DISPLAY_VER(display) >= 35)
+#define HAS_LT_PHY(display) ((display)->platform.novalake)
 
 #endif /* __INTEL_LT_PHY_H__ */
-- 
2.51.0