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Message-Id: <20250911-add-displayport-support-for-qcs615-platform-v4-5-2702bdda14ed@oss.qualcomm.com>
Date: Thu, 11 Sep 2025 22:55:02 +0800
From: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
To: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Rob Clark <robin.clark@....qualcomm.com>,
Dmitry Baryshkov <lumag@...nel.org>,
Abhinav Kumar <abhinav.kumar@...ux.dev>,
Jessica Zhang <jessica.zhang@....qualcomm.com>,
Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
fange.zhang@....qualcomm.com, yongxing.mou@....qualcomm.com,
li.liu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>,
Xiangxu Yin <xiangxu.yin@....qualcomm.com>
Subject: [PATCH v4 05/13] phy: qcom: qmp-usbc: Add regulator init_load
support
QMP USBC PHY drivers previously did not set init_load_uA for regulators,
which could result in incorrect vote levels. This patch introduces
regulator definitions with proper init_load_uA values based on each
chip's power grid design.
QCS615 USB3 PHY was previously reusing qcm2290_usb3phy_cfg, but its
regulator requirements differ. A new qcs615_usb3phy_cfg is added to
reflect the correct settings.
Signed-off-by: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
---
drivers/phy/qualcomm/phy-qcom-qmp-usbc.c | 70 +++++++++++++++++++-------------
1 file changed, 41 insertions(+), 29 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c b/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c
index 791c7d86c51769bc9c7c5e1c73603c87fc71a820..23a0efa7fc4418f379ac4c02fd92080c7755dead 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c
@@ -416,7 +416,7 @@ struct qmp_phy_cfg {
int (*calibrate_dp_phy)(struct qmp_usbc *qmp);
/* regulators to be requested */
- const char * const *vreg_list;
+ const struct regulator_bulk_data *vreg_list;
int num_vregs;
/* array of registers with different offsets */
@@ -508,9 +508,19 @@ static const char * const usb3phy_reset_l[] = {
"phy_phy", "phy",
};
-/* list of regulators */
-static const char * const qmp_phy_vreg_l[] = {
- "vdda-phy", "vdda-pll",
+static const struct regulator_bulk_data qmp_phy_msm8998_vreg_l[] = {
+ { .supply = "vdda-phy", .init_load_uA = 68600 },
+ { .supply = "vdda-pll", .init_load_uA = 14200 },
+};
+
+static const struct regulator_bulk_data qmp_phy_sm2290_vreg_l[] = {
+ { .supply = "vdda-phy", .init_load_uA = 66100 },
+ { .supply = "vdda-pll", .init_load_uA = 13300 },
+};
+
+static const struct regulator_bulk_data qmp_phy_qcs615_vreg_l[] = {
+ { .supply = "vdda-phy", .init_load_uA = 50000 },
+ { .supply = "vdda-pll", .init_load_uA = 20000 },
};
static const struct qmp_usbc_offsets qmp_usbc_offsets_v3_qcm2290 = {
@@ -562,8 +572,8 @@ static const struct qmp_phy_cfg msm8998_usb3phy_cfg = {
.rx_tbl_num = ARRAY_SIZE(msm8998_usb3_rx_tbl),
.pcs_tbl = msm8998_usb3_pcs_tbl,
.pcs_tbl_num = ARRAY_SIZE(msm8998_usb3_pcs_tbl),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .vreg_list = qmp_phy_msm8998_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_msm8998_vreg_l),
.regs = qmp_v3_usb3phy_regs_layout,
};
@@ -578,8 +588,8 @@ static const struct qmp_phy_cfg qcm2290_usb3phy_cfg = {
.rx_tbl_num = ARRAY_SIZE(qcm2290_usb3_rx_tbl),
.pcs_tbl = qcm2290_usb3_pcs_tbl,
.pcs_tbl_num = ARRAY_SIZE(qcm2290_usb3_pcs_tbl),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .vreg_list = qmp_phy_sm2290_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_sm2290_vreg_l),
.regs = qmp_v3_usb3phy_regs_layout_qcm2290,
};
@@ -594,8 +604,24 @@ static const struct qmp_phy_cfg sdm660_usb3phy_cfg = {
.rx_tbl_num = ARRAY_SIZE(sdm660_usb3_rx_tbl),
.pcs_tbl = qcm2290_usb3_pcs_tbl,
.pcs_tbl_num = ARRAY_SIZE(qcm2290_usb3_pcs_tbl),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .vreg_list = qmp_phy_msm8998_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_msm8998_vreg_l),
+ .regs = qmp_v3_usb3phy_regs_layout_qcm2290,
+};
+
+static const struct qmp_phy_cfg qcs615_usb3phy_cfg = {
+ .offsets = &qmp_usbc_offsets_v3_qcm2290,
+
+ .serdes_tbl = qcm2290_usb3_serdes_tbl,
+ .serdes_tbl_num = ARRAY_SIZE(qcm2290_usb3_serdes_tbl),
+ .tx_tbl = qcm2290_usb3_tx_tbl,
+ .tx_tbl_num = ARRAY_SIZE(qcm2290_usb3_tx_tbl),
+ .rx_tbl = qcm2290_usb3_rx_tbl,
+ .rx_tbl_num = ARRAY_SIZE(qcm2290_usb3_rx_tbl),
+ .pcs_tbl = qcm2290_usb3_pcs_tbl,
+ .pcs_tbl_num = ARRAY_SIZE(qcm2290_usb3_pcs_tbl),
+ .vreg_list = qmp_phy_qcs615_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_qcs615_vreg_l),
.regs = qmp_v3_usb3phy_regs_layout_qcm2290,
};
@@ -627,6 +653,8 @@ static const struct qmp_phy_cfg qcs615_usb3dp_phy_cfg = {
.swing_tbl = &qmp_dp_voltage_swing_hbr2_rbr,
.pre_emphasis_tbl = &qmp_dp_pre_emphasis_hbr2_rbr,
+ .vreg_list = qmp_phy_qcs615_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_qcs615_vreg_l),
};
static int qmp_usbc_com_init(struct phy *phy)
@@ -911,23 +939,6 @@ static const struct dev_pm_ops qmp_usbc_pm_ops = {
qmp_usbc_runtime_resume, NULL)
};
-static int qmp_usbc_vreg_init(struct qmp_usbc *qmp)
-{
- const struct qmp_phy_cfg *cfg = qmp->cfg;
- struct device *dev = qmp->dev;
- int num = cfg->num_vregs;
- int i;
-
- qmp->vregs = devm_kcalloc(dev, num, sizeof(*qmp->vregs), GFP_KERNEL);
- if (!qmp->vregs)
- return -ENOMEM;
-
- for (i = 0; i < num; i++)
- qmp->vregs[i].supply = cfg->vreg_list[i];
-
- return devm_regulator_bulk_get(dev, num, qmp->vregs);
-}
-
static int qmp_usbc_reset_init(struct qmp_usbc *qmp,
const char *const *reset_list,
int num_resets)
@@ -1235,7 +1246,8 @@ static int qmp_usbc_probe(struct platform_device *pdev)
mutex_init(&qmp->phy_mutex);
- ret = qmp_usbc_vreg_init(qmp);
+ ret = devm_regulator_bulk_get_const(qmp->dev, qmp->cfg->num_vregs,
+ qmp->cfg->vreg_list, &qmp->vregs);
if (ret)
return ret;
@@ -1304,7 +1316,7 @@ static const struct of_device_id qmp_usbc_of_match_table[] = {
.data = &qcs615_usb3dp_phy_cfg,
}, {
.compatible = "qcom,qcs615-qmp-usb3-phy",
- .data = &qcm2290_usb3phy_cfg,
+ .data = &qcs615_usb3phy_cfg,
}, {
.compatible = "qcom,sdm660-qmp-usb3-phy",
.data = &sdm660_usb3phy_cfg,
--
2.34.1
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