Adding support for TPS4 (CP2520 Pattern 3) PHY pattern source tests.
v2: uniform bit names TP4a/b/c (Manasi)
Signed-off-by: Khaled Almahallawy <khaled.almahallawy@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 14 ++++++++++++--
drivers/gpu/drm/i915/i915_reg.h | 4 ++++
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index d6295eb20b63..4b74b2ec5665 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5371,7 +5371,7 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp)
&intel_dp->compliance.test_data.phytest;
struct intel_crtc *crtc = to_intel_crtc(dig_port->base.base.crtc);
enum pipe pipe = crtc->pipe;
- u32 pattern_val;
+ u32 pattern_val, dp_tp_ctl;
switch (data->phy_pattern) {
case DP_PHY_TEST_PATTERN_NONE:
@@ -5411,7 +5411,7 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp)
DDI_DP_COMP_CTL_ENABLE |
DDI_DP_COMP_CTL_CUSTOM80);
break;
- case DP_PHY_TEST_PATTERN_CP2520:
+ case DP_PHY_TEST_PATTERN_CP2520_PAT1:
/*
* FIXME: Ideally pattern should come from DPCD 0x24A. As
* current firmware of DPR-100 could not set it, so hardcoding
@@ -5423,6 +5423,16 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp)
DDI_DP_COMP_CTL_ENABLE | DDI_DP_COMP_CTL_HBR2 |
pattern_val);
break;
+ case DP_PHY_TEST_PATTERN_CP2520_PAT3:
+ DRM_DEBUG_KMS("Set TPS4 Phy Test Pattern\n");
+ intel_de_write(dev_priv, DDI_DP_COMP_CTL(pipe), 0x0);
+ dp_tp_ctl = intel_de_read(dev_priv, TGL_DP_TP_CTL(pipe));
+ dp_tp_ctl &= ~DP_TP_CTL_TRAIN_PAT4_SEL_MASK;
+ dp_tp_ctl |= DP_TP_CTL_TRAIN_PAT4_SEL_TP4a;
+ dp_tp_ctl &= ~DP_TP_CTL_LINK_TRAIN_MASK;
+ dp_tp_ctl |= DP_TP_CTL_LINK_TRAIN_PAT4;
+ intel_de_write(dev_priv, TGL_DP_TP_CTL(pipe), dp_tp_ctl);
+ break;
default:
WARN(1, "Invalid Phy Test Pattern\n");
}
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a0d31f3bf634..c586595b9e76 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -9982,6 +9982,10 @@ enum skl_power_gate {
#define DP_TP_CTL_MODE_SST (0 << 27)
#define DP_TP_CTL_MODE_MST (1 << 27)
#define DP_TP_CTL_FORCE_ACT (1 << 25)
+#define DP_TP_CTL_TRAIN_PAT4_SEL_MASK (3 << 19)
+#define DP_TP_CTL_TRAIN_PAT4_SEL_TP4a (0 << 19)
+#define DP_TP_CTL_TRAIN_PAT4_SEL_TP4b (1 << 19)
+#define DP_TP_CTL_TRAIN_PAT4_SEL_TP4c (2 << 19)
#define DP_TP_CTL_ENHANCED_FRAME_ENABLE (1 << 18)
#define DP_TP_CTL_FDI_AUTOTRAIN (1 << 15)
#define DP_TP_CTL_LINK_TRAIN_MASK (7 << 8)
--
2.17.1
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
