From: Matt Roper <matthew.d.roper@xxxxxxxxx>
DG1's vswing tables are the same for eDP and HDMI but have slight
differences from ICL/TGL for DP.
Bspec: 49291
Cc: Clinton Taylor <Clinton.A.Taylor@xxxxxxxxx>
Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
Cc: Radhakrishna Sripada <radhakrishna.sripada@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 34 ++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 2c484b55bcdf..4a1a896098f9 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -582,6 +582,34 @@ static const struct cnl_ddi_buf_trans ehl_combo_phy_ddi_translations_dp[] = {
{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
};
+static const struct cnl_ddi_buf_trans dg1_combo_phy_ddi_translations_dp_hbr[] = {
+ /* NT mV Trans mV db */
+ { 0xA, 0x32, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
+ { 0xA, 0x48, 0x35, 0x00, 0x0A }, /* 350 500 3.1 */
+ { 0xC, 0x63, 0x2F, 0x00, 0x10 }, /* 350 700 6.0 */
+ { 0x6, 0x7F, 0x2C, 0x00, 0x13 }, /* 350 900 8.2 */
+ { 0xA, 0x43, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
+ { 0xC, 0x60, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
+ { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
+ { 0xC, 0x60, 0x3F, 0x00, 0x00 }, /* 650 700 0.6 */
+ { 0x6, 0x7F, 0x37, 0x00, 0x08 }, /* 600 900 3.5 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
+};
+
+static const struct cnl_ddi_buf_trans dg1_combo_phy_ddi_translations_dp_hbr2[] = {
+ /* NT mV Trans mV db */
+ { 0xA, 0x32, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
+ { 0xA, 0x48, 0x35, 0x00, 0x0A }, /* 350 500 3.1 */
+ { 0xC, 0x63, 0x2F, 0x00, 0x10 }, /* 350 700 6.0 */
+ { 0x6, 0x7F, 0x2C, 0x00, 0x13 }, /* 350 900 8.2 */
+ { 0xA, 0x43, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
+ { 0xC, 0x60, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
+ { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
+ { 0xC, 0x58, 0x3F, 0x00, 0x00 }, /* 650 700 0.6 */
+ { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 900 3.5 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
+};
+
struct icl_mg_phy_ddi_buf_trans {
u32 cri_txdeemph_override_11_6;
u32 cri_txdeemph_override_5_0;
@@ -1012,6 +1040,12 @@ icl_get_combo_buf_trans(struct intel_encoder *encoder, int type, int rate,
} else if (type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.low_vswing) {
*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
return icl_combo_phy_ddi_translations_edp_hbr2;
+ } else if (IS_DG1(dev_priv) && rate > 270000) {
+ *n_entries = ARRAY_SIZE(dg1_combo_phy_ddi_translations_dp_hbr2);
+ return dg1_combo_phy_ddi_translations_dp_hbr2;
+ } else if (IS_DG1(dev_priv)) {
+ *n_entries = ARRAY_SIZE(dg1_combo_phy_ddi_translations_dp_hbr);
+ return dg1_combo_phy_ddi_translations_dp_hbr;
}
*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
--
2.26.2
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