1 files changed, 38 insertions, 26 deletions

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 23dc01212508..da5dd3639a49 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -112,7 +112,7 @@ struct qcom_pcie_resources_2_3_2 {
 	struct regulator_bulk_data supplies[QCOM_PCIE_2_3_2_MAX_SUPPLY];
 };
 
-#define QCOM_PCIE_2_4_0_MAX_CLOCKS	3
+#define QCOM_PCIE_2_4_0_MAX_CLOCKS	4
 struct qcom_pcie_resources_2_4_0 {
 	struct clk_bulk_data clks[QCOM_PCIE_2_4_0_MAX_CLOCKS];
 	int num_clks;
@@ -638,13 +638,16 @@ static int qcom_pcie_get_resources_2_4_0(struct qcom_pcie *pcie)
 	struct qcom_pcie_resources_2_4_0 *res = &pcie->res.v2_4_0;
 	struct dw_pcie *pci = pcie->pci;
 	struct device *dev = pci->dev;
+	bool is_ipq = of_device_is_compatible(dev->of_node, "qcom,pcie-ipq4019");
 	int ret;
 
 	res->clks[0].id = "aux";
 	res->clks[1].id = "master_bus";
 	res->clks[2].id = "slave_bus";
+	res->clks[3].id = "iface";
 
-	res->num_clks = 3;
+	/* qcom,pcie-ipq4019 is defined without "iface" */
+	res->num_clks = is_ipq ? 3 : 4;
 
 	ret = devm_clk_bulk_get(dev, res->num_clks, res->clks);
 	if (ret < 0)
@@ -658,27 +661,33 @@ static int qcom_pcie_get_resources_2_4_0(struct qcom_pcie *pcie)
 	if (IS_ERR(res->axi_s_reset))
 		return PTR_ERR(res->axi_s_reset);
 
-	res->pipe_reset = devm_reset_control_get_exclusive(dev, "pipe");
-	if (IS_ERR(res->pipe_reset))
-		return PTR_ERR(res->pipe_reset);
-
-	res->axi_m_vmid_reset = devm_reset_control_get_exclusive(dev,
-								 "axi_m_vmid");
-	if (IS_ERR(res->axi_m_vmid_reset))
-		return PTR_ERR(res->axi_m_vmid_reset);
-
-	res->axi_s_xpu_reset = devm_reset_control_get_exclusive(dev,
-								"axi_s_xpu");
-	if (IS_ERR(res->axi_s_xpu_reset))
-		return PTR_ERR(res->axi_s_xpu_reset);
-
-	res->parf_reset = devm_reset_control_get_exclusive(dev, "parf");
-	if (IS_ERR(res->parf_reset))
-		return PTR_ERR(res->parf_reset);
-
-	res->phy_reset = devm_reset_control_get_exclusive(dev, "phy");
-	if (IS_ERR(res->phy_reset))
-		return PTR_ERR(res->phy_reset);
+	if (is_ipq) {
+		/*
+		 * These resources relates to the PHY or are secure clocks, but
+		 * are controlled here for IPQ4019
+		 */
+		res->pipe_reset = devm_reset_control_get_exclusive(dev, "pipe");
+		if (IS_ERR(res->pipe_reset))
+			return PTR_ERR(res->pipe_reset);
+
+		res->axi_m_vmid_reset = devm_reset_control_get_exclusive(dev,
+									 "axi_m_vmid");
+		if (IS_ERR(res->axi_m_vmid_reset))
+			return PTR_ERR(res->axi_m_vmid_reset);
+
+		res->axi_s_xpu_reset = devm_reset_control_get_exclusive(dev,
+									"axi_s_xpu");
+		if (IS_ERR(res->axi_s_xpu_reset))
+			return PTR_ERR(res->axi_s_xpu_reset);
+
+		res->parf_reset = devm_reset_control_get_exclusive(dev, "parf");
+		if (IS_ERR(res->parf_reset))
+			return PTR_ERR(res->parf_reset);
+
+		res->phy_reset = devm_reset_control_get_exclusive(dev, "phy");
+		if (IS_ERR(res->phy_reset))
+			return PTR_ERR(res->phy_reset);
+	}
 
 	res->axi_m_sticky_reset = devm_reset_control_get_exclusive(dev,
 								   "axi_m_sticky");
@@ -698,9 +707,11 @@ static int qcom_pcie_get_resources_2_4_0(struct qcom_pcie *pcie)
 	if (IS_ERR(res->ahb_reset))
 		return PTR_ERR(res->ahb_reset);
 
-	res->phy_ahb_reset = devm_reset_control_get_exclusive(dev, "phy_ahb");
-	if (IS_ERR(res->phy_ahb_reset))
-		return PTR_ERR(res->phy_ahb_reset);
+	if (is_ipq) {
+		res->phy_ahb_reset = devm_reset_control_get_exclusive(dev, "phy_ahb");
+		if (IS_ERR(res->phy_ahb_reset))
+			return PTR_ERR(res->phy_ahb_reset);
+	}
 
 	return 0;
 }
@@ -1268,6 +1279,7 @@ static const struct of_device_id qcom_pcie_match[] = {
 	{ .compatible = "qcom,pcie-msm8996", .data = &ops_2_3_2 },
 	{ .compatible = "qcom,pcie-ipq8074", .data = &ops_2_3_3 },
 	{ .compatible = "qcom,pcie-ipq4019", .data = &ops_2_4_0 },
+	{ .compatible = "qcom,pcie-qcs404", .data = &ops_2_4_0 },
 	{ }
 };