linux-kernel - [PATCH v5 6/6] phy: qcom: qmp-pcie: Add support for glymur PCIe Gen4 x2 PHY

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Message-Id: <20251017-glymur_pcie-v5-6-82d0c4bd402b@oss.qualcomm.com>
Date: Fri, 17 Oct 2025 18:33:43 -0700
From: Qiang Yu <qiang.yu@....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>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kwilczynski@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Bjorn Andersson <andersson@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, Qiang Yu <qiang.yu@....qualcomm.com>,
        Qiang Yu <quic_qianyu@...cinc.com>
Subject: [PATCH v5 6/6] phy: qcom: qmp-pcie: Add support for glymur PCIe
 Gen4 x2 PHY

From: Qiang Yu <quic_qianyu@...cinc.com>

Add support for Gen4 x2 PCIe QMP PHY found on Glymur platform.

Signed-off-by: Qiang Yu <qiang.yu@....qualcomm.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 86b1b7e2da86a8675e3e48e90b782afb21cafd77..2747e71bf865907f139422a9ed33709c4a7ae7ea 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -3363,6 +3363,16 @@ static const struct qmp_pcie_offsets qmp_pcie_offsets_v6_30 = {
 	.ln_shrd	= 0x8000,
 };
 
+static const struct qmp_pcie_offsets qmp_pcie_offsets_v8 = {
+	.serdes     = 0x1000,
+	.pcs        = 0x1400,
+	.pcs_misc	= 0x1800,
+	.tx		= 0x0000,
+	.rx		= 0x0200,
+	.tx2		= 0x0800,
+	.rx2		= 0x0a00,
+};
+
 static const struct qmp_pcie_offsets qmp_pcie_offsets_v8_50 = {
 	.serdes     = 0x8000,
 	.pcs        = 0x9000,
@@ -4441,6 +4451,21 @@ static const struct qmp_phy_cfg glymur_qmp_gen5x4_pciephy_cfg = {
 	.phy_status		= PHYSTATUS_4_20,
 };
 
+static const struct qmp_phy_cfg glymur_qmp_gen4x2_pciephy_cfg = {
+	.lanes = 2,
+
+	.offsets		= &qmp_pcie_offsets_v8,
+
+	.reset_list		= sdm845_pciephy_reset_l,
+	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= pciephy_v6_regs_layout,
+
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
+	.phy_status		= PHYSTATUS_4_20,
+};
+
 static void qmp_pcie_init_port_b(struct qmp_pcie *qmp, const struct qmp_phy_cfg_tbls *tbls)
 {
 	const struct qmp_phy_cfg *cfg = qmp->cfg;
@@ -5192,6 +5217,9 @@ static int qmp_pcie_probe(struct platform_device *pdev)
 
 static const struct of_device_id qmp_pcie_of_match_table[] = {
 	{
+		.compatible = "qcom,glymur-qmp-gen4x2-pcie-phy",
+		.data = &glymur_qmp_gen4x2_pciephy_cfg,
+	}, {
 		.compatible = "qcom,glymur-qmp-gen5x4-pcie-phy",
 		.data = &glymur_qmp_gen5x4_pciephy_cfg,
 	}, {

-- 
2.34.1