[Intel-gfx] [PATCH] drm/i915: Fix HTI port checking

[José Roberto de Souza]

There was some misinterpretation of specification, when DDIX_USED is
set, the next bit means 0 for DP and 1 for HDMI.

Anyways this misinterpretation is not causing any issues, this change
is just to comply with specification.
Also as for us it do not matters if it is HDMI or DP, not checking the
port type that HTI is using.

Cc: Anusha Srivatsa <anusha.srivatsa at intel.com>
Cc: Matt Roper <matthew.d.roper at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 3 +--
 drivers/gpu/drm/i915/i915_reg.h          | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 3df6913369bc..e90d1af1a54d 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -5321,8 +5321,7 @@ intel_ddi_max_lanes(struct intel_digital_port *dig_port)
 static bool hti_uses_phy(struct drm_i915_private *i915, enum phy phy)
 {
 	return i915->hti_state & HDPORT_ENABLED &&
-		(i915->hti_state & HDPORT_PHY_USED_DP(phy) ||
-		 i915->hti_state & HDPORT_PHY_USED_HDMI(phy));
+	       i915->hti_state & HDPORT_DDI_USED(phy);
 }
 
 static enum hpd_pin dg1_hpd_pin(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0023c023f472..1d8ba10847ca 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2928,8 +2928,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 
 #define HDPORT_STATE			_MMIO(0x45050)
 #define   HDPORT_DPLL_USED_MASK		REG_GENMASK(14, 12)
-#define   HDPORT_PHY_USED_DP(phy)	REG_BIT(2 * (phy) + 2)
-#define   HDPORT_PHY_USED_HDMI(phy)	REG_BIT(2 * (phy) + 1)
+#define   HDPORT_DDI_USED(phy)		REG_BIT(2 * (phy) + 1)
 #define   HDPORT_ENABLED		REG_BIT(0)
 
 /* Make render/texture TLB fetches lower priorty than associated data
-- 
2.30.0