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drm/i915/adl_p: Add ddi buf translation tables for combo PHY 
ADL-P now has its own set of DDI buf translation tables (except for eDP
which appears to be the same as TGL).  Add the new values (last updated
in bspec 2021-07-22) to the driver.

Bspec: 49291
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
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@mattrope @intel-lab-lkp
mattrope authored and intel-lab-lkp committed Jul 23, 2021
1 parent 54a24d2 commit 68ee32b7d0fc372136f130d55cd937fc6b9bbbd9
Showing 1 changed file with 104 additions and 0 deletions.
104 drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
View file
@@ -1057,6 +1057,64 @@ static const struct intel_ddi_buf_trans adls_combo_phy_ddi_translations_edp_hbr3
.num_entries = ARRAY_SIZE(_adls_combo_phy_ddi_translations_edp_hbr3),
};

static const union intel_ddi_buf_trans_entry _adlp_combo_phy_ddi_translations_hdmi[] = {
/* NT mV Trans mV db */
{ .cnl = { 0x6, 0x60, 0x3F, 0x00, 0x00 } }, /* 400 400 0.0 */
{ .cnl = { 0x6, 0x68, 0x3F, 0x00, 0x00 } }, /* 500 500 0.0 */
{ .cnl = { 0xA, 0x73, 0x3F, 0x00, 0x00 } }, /* 650 650 0.0 ALS */
{ .cnl = { 0xA, 0x78, 0x3F, 0x00, 0x00 } }, /* 800 800 0.0 */
{ .cnl = { 0xB, 0x7F, 0x3F, 0x00, 0x00 } }, /* 1000 1000 0.0 Re-timer */
{ .cnl = { 0xB, 0x7F, 0x3B, 0x00, 0x04 } }, /* Full Red -1.5 */
{ .cnl = { 0xB, 0x7F, 0x39, 0x00, 0x06 } }, /* Full Red -1.8 */
{ .cnl = { 0xB, 0x7F, 0x37, 0x00, 0x08 } }, /* Full Red -2.0 CRLS */
{ .cnl = { 0xB, 0x7F, 0x35, 0x00, 0x0A } }, /* Full Red -2.5 */
{ .cnl = { 0xB, 0x7F, 0x33, 0x00, 0x0C } }, /* Full Red -3.0 */
};

static const struct intel_ddi_buf_trans adlp_combo_phy_ddi_translations_hdmi = {
.entries = _adlp_combo_phy_ddi_translations_hdmi,
.num_entries = ARRAY_SIZE(_adlp_combo_phy_ddi_translations_hdmi),
.hdmi_default_entry = ARRAY_SIZE(_adlp_combo_phy_ddi_translations_hdmi) - 1,
};

static const union intel_ddi_buf_trans_entry _adlp_combo_phy_ddi_translations_dp_hbr[] = {
/* NT mV Trans mV db */
{ .cnl = { 0xA, 0x35, 0x3F, 0x00, 0x00 } }, /* 350 350 0.0 */
{ .cnl = { 0xA, 0x4F, 0x37, 0x00, 0x08 } }, /* 350 500 3.1 */
{ .cnl = { 0xC, 0x71, 0x31, 0x00, 0x0E } }, /* 350 700 6.0 */
{ .cnl = { 0x6, 0x7F, 0x2C, 0x00, 0x13 } }, /* 350 900 8.2 */
{ .cnl = { 0xA, 0x4C, 0x3F, 0x00, 0x00 } }, /* 500 500 0.0 */
{ .cnl = { 0xC, 0x73, 0x34, 0x00, 0x0B } }, /* 500 700 2.9 */
{ .cnl = { 0x6, 0x7F, 0x2F, 0x00, 0x10 } }, /* 500 900 5.1 */
{ .cnl = { 0xC, 0x73, 0x3E, 0x00, 0x01 } }, /* 650 700 0.6 */
{ .cnl = { 0x6, 0x7F, 0x35, 0x00, 0x0A } }, /* 600 900 3.5 */
{ .cnl = { 0x6, 0x7F, 0x3F, 0x00, 0x00 } }, /* 900 900 0.0 */
};

static const struct intel_ddi_buf_trans adlp_combo_phy_ddi_translations_dp_hbr = {
.entries = _adlp_combo_phy_ddi_translations_dp_hbr,
.num_entries = ARRAY_SIZE(_adlp_combo_phy_ddi_translations_dp_hbr),
};

static const union intel_ddi_buf_trans_entry _adlp_combo_phy_ddi_translations_dp_hbr2_hbr3[] = {
/* NT mV Trans mV db */
{ .cnl = { 0xA, 0x35, 0x3F, 0x00, 0x00 } }, /* 350 350 0.0 */
{ .cnl = { 0xA, 0x4F, 0x37, 0x00, 0x08 } }, /* 350 500 3.1 */
{ .cnl = { 0xC, 0x71, 0x2F, 0x00, 0x10 } }, /* 350 700 6.0 */
{ .cnl = { 0x6, 0x7F, 0x2B, 0x00, 0x14 } }, /* 350 900 8.2 */
{ .cnl = { 0xA, 0x4C, 0x3F, 0x00, 0x00 } }, /* 500 500 0.0 */
{ .cnl = { 0xC, 0x73, 0x34, 0x00, 0x0B } }, /* 500 700 2.9 */
{ .cnl = { 0x6, 0x7F, 0x30, 0x00, 0x0F } }, /* 500 900 5.1 */
{ .cnl = { 0xC, 0x63, 0x3F, 0x00, 0x00 } }, /* 650 700 0.6 */
{ .cnl = { 0x6, 0x7F, 0x38, 0x00, 0x07 } }, /* 600 900 3.5 */
{ .cnl = { 0x6, 0x7F, 0x3F, 0x00, 0x00 } }, /* 900 900 0.0 */
};

static const struct intel_ddi_buf_trans adlp_combo_phy_ddi_translations_dp_hbr2_hbr3 = {
.entries = _adlp_combo_phy_ddi_translations_dp_hbr2_hbr3,
.num_entries = ARRAY_SIZE(_adlp_combo_phy_ddi_translations_dp_hbr2_hbr3),
};

static const union intel_ddi_buf_trans_entry _adlp_dkl_phy_ddi_translations_dp_hbr[] = {
/* VS pre-emp Non-trans mV Pre-emph dB */
{ .dkl = { 0x7, 0x0, 0x01 } }, /* 0 0 400mV 0 dB */
@@ -1661,6 +1719,52 @@ adls_get_combo_buf_trans(struct intel_encoder *encoder,
return adls_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
}

static const struct intel_ddi_buf_trans *
adlp_get_combo_buf_trans_dp(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
int *n_entries)
{
if (crtc_state->port_clock > 270000)
return intel_get_buf_trans(&adlp_combo_phy_ddi_translations_dp_hbr2_hbr3, n_entries);
else
return intel_get_buf_trans(&adlp_combo_phy_ddi_translations_dp_hbr, n_entries);
}

static const struct intel_ddi_buf_trans *
adlp_get_combo_buf_trans_edp(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
int *n_entries)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);

if (crtc_state->port_clock > 540000) {
return intel_get_buf_trans(&icl_combo_phy_ddi_translations_dp_hbr2_edp_hbr3,
n_entries);
} else if (dev_priv->vbt.edp.hobl && !intel_dp->hobl_failed) {
return intel_get_buf_trans(&tgl_combo_phy_ddi_translations_edp_hbr2_hobl,
n_entries);
} else if (dev_priv->vbt.edp.low_vswing) {
return intel_get_buf_trans(&icl_combo_phy_ddi_translations_edp_hbr2,
n_entries);
}

return adlp_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
}

static const struct intel_ddi_buf_trans *
adlp_get_combo_buf_trans(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
int *n_entries)
{
if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
return intel_get_buf_trans(&adlp_combo_phy_ddi_translations_hdmi, n_entries);
else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
return adlp_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
else
return adlp_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
}

static const struct intel_ddi_buf_trans *
tgl_get_dkl_buf_trans_dp(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,

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