From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Bspec asks us to clear the CURSOR_PROGRAM and COEFF_POLARITY
bits in PORT_TX_DW5 on icl+ combo PHYs. Make it so.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_combo_phy_regs.h | 2 ++
drivers/gpu/drm/i915/display/intel_ddi.c | 3 ++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h
b/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h
index 0964e392d02c..ee41acdccf4e 100644
--- a/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h
@@ -133,6 +133,8 @@
#define TX_TRAINING_EN REG_BIT(31)
#define TAP2_DISABLE REG_BIT(30)
#define TAP3_DISABLE REG_BIT(29)
+#define CURSOR_PROGRAM REG_BIT(26)
+#define COEFF_POLARITY REG_BIT(25)
#define SCALING_MODE_SEL_MASK REG_GENMASK(20, 18)
#define SCALING_MODE_SEL(x)
REG_FIELD_PREP(SCALING_MODE_SEL_MASK, (x))
#define RTERM_SELECT_MASK REG_GENMASK(5, 3)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c
b/drivers/gpu/drm/i915/display/intel_ddi.c
index 20fc258a4d6d..307559d4e492 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -1193,7 +1193,8 @@ static void icl_ddi_combo_vswing_program(struct
intel_encoder *encoder,
/* Set PORT_TX_DW5 */
val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy));
val &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK |
- TAP2_DISABLE | TAP3_DISABLE);
+ COEFF_POLARITY | CURSOR_PROGRAM |
+ TAP2_DISABLE | TAP3_DISABLE);
val |= SCALING_MODE_SEL(0x2);
val |= RTERM_SELECT(0x6);
val |= TAP3_DISABLE;
--
2.45.3
