diff options
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-qmp.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index 9cdebe7f26cb..1c79a713780d 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c @@ -3375,6 +3375,20 @@ static void qcom_qmp_phy_dp_aux_init(struct qmp_phy *qphy) qphy->pcs + QSERDES_V3_DP_PHY_AUX_INTERRUPT_MASK); } +static const u8 qmp_dp_v3_pre_emphasis_hbr3_hbr2[4][4] = { + { 0x00, 0x0c, 0x15, 0x1a }, + { 0x02, 0x0e, 0x16, 0xff }, + { 0x02, 0x11, 0xff, 0xff }, + { 0x04, 0xff, 0xff, 0xff } +}; + +static const u8 qmp_dp_v3_voltage_swing_hbr3_hbr2[4][4] = { + { 0x02, 0x12, 0x16, 0x1a }, + { 0x09, 0x19, 0x1f, 0xff }, + { 0x10, 0x1f, 0xff, 0xff }, + { 0x1f, 0xff, 0xff, 0xff } +}; + static const u8 qmp_dp_v3_pre_emphasis_hbr_rbr[4][4] = { { 0x00, 0x0c, 0x14, 0x19 }, { 0x00, 0x0b, 0x12, 0xff }, @@ -3410,8 +3424,13 @@ static void qcom_qmp_phy_configure_dp_tx(struct qmp_phy *qphy) drvr_en = 0x10; } - voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr_rbr[v_level][p_level]; - pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr_rbr[v_level][p_level]; + if (dp_opts->link_rate <= 2700) { + voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr_rbr[v_level][p_level]; + pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr_rbr[v_level][p_level]; + } else { + voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr3_hbr2[v_level][p_level]; + pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr3_hbr2[v_level][p_level]; + } /* TODO: Move check to config check */ if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF) |