diff mbox series

[v2,08/19] drm/i915/dg2: add DG2+ TRANS_DDI_FUNC_CTL DP 2.0 128b/132b mode

Message ID a449e984e14ee0a493a471fad54dc49deb72a5cd.1629735412.git.jani.nikula@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/dp: dp 2.0 enabling prep work | expand

Commit Message

Jani Nikula Aug. 23, 2021, 4:18 p.m. UTC
Unfortunately, the DP 2.0 128b/132b DDI mode selection in the register
conflicts with FDI. Since we have to deal with both meanings in the same
code, for different platforms, clarify the macro name so we don't
forget.

Bspec: 50493
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 6 +++---
 drivers/gpu/drm/i915/i915_reg.h          | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 1ef7a65feb66..203a54f905f6 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -488,7 +488,7 @@  intel_ddi_transcoder_func_reg_val_get(struct intel_encoder *encoder,
 		if (crtc_state->hdmi_high_tmds_clock_ratio)
 			temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE;
 	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
-		temp |= TRANS_DDI_MODE_SELECT_FDI;
+		temp |= TRANS_DDI_MODE_SELECT_FDI_OR_128B132B;
 		temp |= (crtc_state->fdi_lanes - 1) << 1;
 	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
 		temp |= TRANS_DDI_MODE_SELECT_DP_MST;
@@ -678,7 +678,7 @@  bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
 		ret = false;
 		break;
 
-	case TRANS_DDI_MODE_SELECT_FDI:
+	case TRANS_DDI_MODE_SELECT_FDI_OR_128B132B:
 		ret = type == DRM_MODE_CONNECTOR_VGA;
 		break;
 
@@ -3557,7 +3557,7 @@  static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
 		pipe_config->output_types |= BIT(INTEL_OUTPUT_HDMI);
 		pipe_config->lane_count = 4;
 		break;
-	case TRANS_DDI_MODE_SELECT_FDI:
+	case TRANS_DDI_MODE_SELECT_FDI_OR_128B132B:
 		pipe_config->output_types |= BIT(INTEL_OUTPUT_ANALOG);
 		break;
 	case TRANS_DDI_MODE_SELECT_DP_SST:
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index bd400553f9ea..93b51ba2da87 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10169,7 +10169,7 @@  enum skl_power_gate {
 #define  TRANS_DDI_MODE_SELECT_DVI	(1 << 24)
 #define  TRANS_DDI_MODE_SELECT_DP_SST	(2 << 24)
 #define  TRANS_DDI_MODE_SELECT_DP_MST	(3 << 24)
-#define  TRANS_DDI_MODE_SELECT_FDI	(4 << 24)
+#define  TRANS_DDI_MODE_SELECT_FDI_OR_128B132B	(4 << 24)
 #define  TRANS_DDI_BPC_MASK		(7 << 20)
 #define  TRANS_DDI_BPC_8		(0 << 20)
 #define  TRANS_DDI_BPC_10		(1 << 20)