phy: qcom: qmp-pcie: Add support for Glymur PCIe Gen5x4 PHY

Add support for Gen5 x4 PCIe QMP PHY found on Glymur platform.

Signed-off-by: Prudhvi Yarlagadda <quic_pyarlaga@quicinc.com>
Signed-off-by: Wenbin Yao <wenbin.yao@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
Link: https://patch.msgid.link/20251103-glymur-pcie-upstream-v6-3-18a5e0a538dc@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Prudhvi Yarlagadda

drivers/phy/qualcomm/phy-qcom-qmp-pcie.c

@@ -100,6 +100,12 @@ static const unsigned int pciephy_v7_regs_layout[QPHY_LAYOUT_SIZE] = {
 	[QPHY_PCS_POWER_DOWN_CONTROL]	= QPHY_V7_PCS_POWER_DOWN_CONTROL,
 };
 
+static const unsigned int pciephy_v8_50_regs_layout[QPHY_LAYOUT_SIZE] = {
+	[QPHY_START_CTRL]		= QPHY_V8_50_PCS_START_CONTROL,
+	[QPHY_PCS_STATUS]		= QPHY_V8_50_PCS_STATUS1,
+	[QPHY_PCS_POWER_DOWN_CONTROL]	= QPHY_V8_50_PCS_POWER_DOWN_CONTROL,
+};
+
 static const struct qmp_phy_init_tbl msm8998_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN, 0x14),
 	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CLK_SELECT, 0x30),
@@ -3072,6 +3078,7 @@ struct qmp_pcie_offsets {
 	u16 rx2;
 	u16 txz;
 	u16 rxz;
+	u16 txrxz;
 	u16 ln_shrd;
 };
 
@@ -3356,6 +3363,12 @@ static const struct qmp_pcie_offsets qmp_pcie_offsets_v6_30 = {
 	.ln_shrd	= 0x8000,
 };
 
+static const struct qmp_pcie_offsets qmp_pcie_offsets_v8_50 = {
+	.serdes     = 0x8000,
+	.pcs        = 0x9000,
+	.txrxz      = 0xd000,
+};
+
 static const struct qmp_phy_cfg ipq8074_pciephy_cfg = {
 	.lanes			= 1,
 
@@ -4412,6 +4425,22 @@ static const struct qmp_phy_cfg qmp_v6_gen4x4_pciephy_cfg = {
 	.phy_status             = PHYSTATUS_4_20,
 };
 
+static const struct qmp_phy_cfg glymur_qmp_gen5x4_pciephy_cfg = {
+	.lanes = 4,
+
+	.offsets		= &qmp_pcie_offsets_v8_50,
+
+	.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_v8_50_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;
@@ -5163,6 +5192,9 @@ static int qmp_pcie_probe(struct platform_device *pdev)
 
 static const struct of_device_id qmp_pcie_of_match_table[] = {
 	{
+		.compatible = "qcom,glymur-qmp-gen5x4-pcie-phy",
+		.data = &glymur_qmp_gen5x4_pciephy_cfg,
+	}, {
 		.compatible = "qcom,ipq6018-qmp-pcie-phy",
 		.data = &ipq6018_pciephy_cfg,
 	}, {