[PATCH v2 3/3] phy: qcom: qmp-combo: Add USB3+DP PHY support for Nord
From: Bartosz Golaszewski
Date: Wed Sep 16 2026 - 16:19:37 EST
Nord SoC provides two USB3+DP combo PHYs. Their initialisation sequences
are identical to sm8550, but the sub-blocks are not laid out the same way:
Nord adds a dedicated USB3_PCS_AON region at offset 0x1e00 and leaves
everything else where sm8550 has it. None of the existing offsets tables
describe that, so add a v6 table which is the v3 layout plus usb3_pcs_aon.
Populating usb3_pcs_aon changes where the driver drives the I/O clamp when
entering and leaving autonomous mode: it now uses the real AON region
rather than falling back to PCS_MISC, which is what platforms with no AON
region do.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
Assisted-by: LLM
Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
Signed-off-by: Shawn Guo <shengchao.guo@xxxxxxxxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 80 +++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index a4f130fc33e3990e4101a710803bb4d0a0ed077b..c4e88b0384cb557f88f5af233f0568c7a93ab9cd 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -2356,6 +2356,20 @@ static const struct qmp_phy_init_tbl hawi_usb3_pcs_usb_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_V10_PCS_USB3_RCVR_DTCT_DLY_U3_H, 0x00),
};
+static const struct qmp_phy_init_tbl nord_usb3_tx_tbl[] = {
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_RES_CODE_LANE_TX, 0x00),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_RES_CODE_LANE_RX, 0x00),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_RES_CODE_LANE_OFFSET_TX, 0x1f),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_RES_CODE_LANE_OFFSET_RX, 0x09),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_LANE_MODE_1, 0xf5),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_LANE_MODE_3, 0x3f),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_LANE_MODE_4, 0x3f),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_LANE_MODE_5, 0x5f),
+ QMP_PHY_INIT_CFG(QSERDES_V6_TX_RCV_DETECT_LVL_2, 0x14),
+ QMP_PHY_INIT_CFG_LANE(QSERDES_V6_TX_PI_QEC_CTRL, 0x21, 1),
+ QMP_PHY_INIT_CFG_LANE(QSERDES_V6_TX_PI_QEC_CTRL, 0x05, 2),
+};
+
/* list of regulators */
static struct regulator_bulk_data qmp_phy_vreg_l[] = {
{ .supply = "vdda-phy", .init_load_uA = 21800, },
@@ -2720,6 +2734,23 @@ static const struct qmp_combo_offsets qmp_combo_offsets_v5 = {
.dp_dp_phy = 0x2200,
};
+static const struct qmp_combo_offsets qmp_combo_offsets_v6 = {
+ .com = 0x0000,
+ .txa = 0x1200,
+ .rxa = 0x1400,
+ .txb = 0x1600,
+ .rxb = 0x1800,
+ .usb3_serdes = 0x1000,
+ .usb3_pcs_misc = 0x1a00,
+ .usb3_pcs = 0x1c00,
+ .usb3_pcs_aon = 0x1e00,
+ .usb3_pcs_usb = 0x1f00,
+ .dp_serdes = 0x2000,
+ .dp_txa = 0x2200,
+ .dp_txb = 0x2600,
+ .dp_dp_phy = 0x2a00,
+};
+
static const struct qmp_combo_offsets qmp_combo_offsets_v8 = {
.com = 0x0000,
.txa = 0x1400,
@@ -3424,6 +3455,51 @@ static const struct qmp_phy_cfg glymur_usb3dpphy_cfg = {
.num_vregs = ARRAY_SIZE(qmp_phy_vreg_refgen),
};
+static const struct qmp_phy_cfg nord_usb3dpphy_cfg = {
+ .offsets = &qmp_combo_offsets_v6,
+
+ .serdes_tbl = sm8550_usb3_serdes_tbl,
+ .serdes_tbl_num = ARRAY_SIZE(sm8550_usb3_serdes_tbl),
+ .tx_tbl = nord_usb3_tx_tbl,
+ .tx_tbl_num = ARRAY_SIZE(nord_usb3_tx_tbl),
+ .rx_tbl = sm8550_usb3_rx_tbl,
+ .rx_tbl_num = ARRAY_SIZE(sm8550_usb3_rx_tbl),
+ .pcs_tbl = sm8550_usb3_pcs_tbl,
+ .pcs_tbl_num = ARRAY_SIZE(sm8550_usb3_pcs_tbl),
+ .pcs_usb_tbl = sm8550_usb3_pcs_usb_tbl,
+ .pcs_usb_tbl_num = ARRAY_SIZE(sm8550_usb3_pcs_usb_tbl),
+
+ .dp_serdes_tbl = qmp_v6_dp_serdes_tbl,
+ .dp_serdes_tbl_num = ARRAY_SIZE(qmp_v6_dp_serdes_tbl),
+ .dp_tx_tbl = qmp_v6_dp_tx_tbl,
+ .dp_tx_tbl_num = ARRAY_SIZE(qmp_v6_dp_tx_tbl),
+
+ .serdes_tbl_rbr = qmp_v6_dp_serdes_tbl_rbr,
+ .serdes_tbl_rbr_num = ARRAY_SIZE(qmp_v6_dp_serdes_tbl_rbr),
+ .serdes_tbl_hbr = qmp_v6_dp_serdes_tbl_hbr,
+ .serdes_tbl_hbr_num = ARRAY_SIZE(qmp_v6_dp_serdes_tbl_hbr),
+ .serdes_tbl_hbr2 = qmp_v6_dp_serdes_tbl_hbr2,
+ .serdes_tbl_hbr2_num = ARRAY_SIZE(qmp_v6_dp_serdes_tbl_hbr2),
+ .serdes_tbl_hbr3 = qmp_v6_dp_serdes_tbl_hbr3,
+ .serdes_tbl_hbr3_num = ARRAY_SIZE(qmp_v6_dp_serdes_tbl_hbr3),
+
+ .swing_hbr_rbr = &qmp_dp_v5_voltage_swing_hbr_rbr,
+ .pre_emphasis_hbr_rbr = &qmp_dp_v6_pre_emphasis_hbr_rbr,
+ .swing_hbr3_hbr2 = &qmp_dp_v5_voltage_swing_hbr3_hbr2,
+ .pre_emphasis_hbr3_hbr2 = &qmp_dp_v5_pre_emphasis_hbr3_hbr2,
+
+ .dp_aux_init = qmp_v4_dp_aux_init,
+ .configure_dp_tx = qmp_v4_configure_dp_tx,
+ .configure_dp_clocks = qmp_v3_configure_dp_clocks,
+ .configure_dp_phy = qmp_v4_configure_dp_phy,
+
+ .regs = qmp_v6_usb3phy_regs_layout,
+ .reset_list = msm8996_usb3phy_reset_l,
+ .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
+ .vreg_list = qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+};
+
static int qmp_combo_dp_serdes_init(struct qmp_combo *qmp)
{
const struct qmp_phy_cfg *cfg = qmp->cfg;
@@ -5621,6 +5697,10 @@ static const struct of_device_id qmp_combo_of_match_table[] = {
.compatible = "qcom,hawi-qmp-usb3-dp-phy",
.data = &hawi_usb3dpphy_cfg,
},
+ {
+ .compatible = "qcom,nord-qmp-usb3-dp-phy",
+ .data = &nord_usb3dpphy_cfg,
+ },
{
.compatible = "qcom,sar2130p-qmp-usb3-dp-phy",
.data = &sar2130p_usb3dpphy_cfg,
--
2.47.3