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drm/i915/mtl: Add new vswing table for C20 phy to support DP 1.4

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Add vswing table to support DP 1.4 for C20 phy.

v2: rename mtl_c10_trans
v3: add default_entry for mtl_c20_trans_dp14
v4: rename mtl_cx0_trans_dp14

Bspec: 74104
Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: Clint Taylor <Clinton.A.Taylor@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230609002038.11516-1-shawn.c.lee@intel.com
This commit is contained in:
Lee Shawn C
2023-06-09 08:20:38 +08:00
committed by Radhakrishna Sripada
parent 528208717e
commit 0641e54fc3
1 changed files with 24 additions and 2 deletions
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26
drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
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@@ -1049,12 +1049,26 @@ static const union intel_ddi_buf_trans_entry _mtl_c10_trans_dp14[] = {
{ .snps = { 62, 0, 0 } }, /* preset 9 */
};
static const struct intel_ddi_buf_trans mtl_cx0_trans = {
static const struct intel_ddi_buf_trans mtl_c10_trans_dp14 = {
.entries = _mtl_c10_trans_dp14,
.num_entries = ARRAY_SIZE(_mtl_c10_trans_dp14),
.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 +1104,12 @@ 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),
.hdmi_default_entry = ARRAY_SIZE(_mtl_c20_trans_dp14) - 1,
};
static const struct intel_ddi_buf_trans mtl_c20_trans_uhbr = {
.entries = _mtl_c20_trans_uhbr,
.num_entries = ARRAY_SIZE(_mtl_c20_trans_uhbr),
@@ -1678,8 +1698,10 @@ 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);
return intel_get_buf_trans(&mtl_c10_trans_dp14, n_entries);
}
void intel_ddi_buf_trans_init(struct intel_encoder *encoder)