Add vswing table to support DP 1.4 for C20 phy.
Bspec: 74104
Signed-off-by: Lee Shawn C <[email protected]>
Cc: Mika Kahola <[email protected]>
Cc: Clint Taylor <[email protected]>
Cc: Radhakrishna Sripada <[email protected]>
Cc: Uma Shankar <[email protected]>
---
.../drm/i915/display/intel_ddi_buf_trans.c | 21 +++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
index b7d20485bde5..6a1507515119 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
@@ -1055,6 +1055,20 @@ static const struct intel_ddi_buf_trans mtl_cx0_trans = {
.hdmi_default_entry = ARRAY_SIZE(_mtl_c10_trans_dp14) - 1,
};
+/* DP1.4 */
+static const union intel_ddi_buf_trans_entry _mtl_c20_trans_dp14[] = {
+ { .snps = { 20, 0, 0 } }, /* preset 0 */
+ { .snps = { 24, 0, 4 } }, /* preset 1 */
+ { .snps = { 30, 0, 9 } }, /* preset 2 */
+ { .snps = { 34, 0, 14 } }, /* preset 3 */
+ { .snps = { 29, 0, 0 } }, /* preset 4 */
+ { .snps = { 34, 0, 5 } }, /* preset 5 */
+ { .snps = { 38, 0, 10 } }, /* preset 6 */
+ { .snps = { 36, 0, 0 } }, /* preset 7 */
+ { .snps = { 40, 0, 6 } }, /* preset 8 */
+ { .snps = { 48, 0, 0 } }, /* preset 9 */
+};
+
/* DP2.0 */
static const union intel_ddi_buf_trans_entry _mtl_c20_trans_uhbr[] = {
{ .snps = { 48, 0, 0 } }, /* preset 0 */
@@ -1090,6 +1104,11 @@ static const struct intel_ddi_buf_trans
mtl_c20_trans_hdmi = {
.hdmi_default_entry = 0,
};
+static const struct intel_ddi_buf_trans mtl_c20_trans_dp14 = {
+ .entries = _mtl_c20_trans_dp14,
+ .num_entries = ARRAY_SIZE(_mtl_c20_trans_dp14),
+};
+
static const struct intel_ddi_buf_trans mtl_c20_trans_uhbr = {
.entries = _mtl_c20_trans_uhbr,
.num_entries = ARRAY_SIZE(_mtl_c20_trans_uhbr),
@@ -1678,6 +1697,8 @@ mtl_get_cx0_buf_trans(struct intel_encoder *encoder,
return intel_get_buf_trans(&mtl_c20_trans_uhbr, n_entries);
else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) &&
!(intel_is_c10phy(i915, phy)))
return intel_get_buf_trans(&mtl_c20_trans_hdmi, n_entries);
+ else if (!intel_is_c10phy(i915, phy))
+ return intel_get_buf_trans(&mtl_c20_trans_dp14, n_entries);
else
return intel_get_buf_trans(&mtl_cx0_trans, n_entries);
}
--
2.31.1
