PCI: qcom: Add ipq8064 rev2 variant

Ipq8064-v2 have tx term offset set to 0. Introduce this variant to permit
different offset based on the revision.

Link: https://lore.kernel.org/r/20200615210608.21469-10-ansuelsmth@gmail.com
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>

drivers/pci/controller/dwc/pcie-qcom.c

@@ -366,7 +366,8 @@ static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie)
 	val &= ~BIT(0);
 	writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL);
 
-	if (of_device_is_compatible(node, "qcom,pcie-ipq8064")) {
+	if (of_device_is_compatible(node, "qcom,pcie-ipq8064") ||
+	    of_device_is_compatible(node, "qcom,pcie-ipq8064-v2")) {
 		writel(PCS_DEEMPH_TX_DEEMPH_GEN1(24) |
 			       PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(24) |
 			       PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(34),
@@ -1464,6 +1465,7 @@ err_pm_runtime_put:
 static const struct of_device_id qcom_pcie_match[] = {
 	{ .compatible = "qcom,pcie-apq8084", .data = &ops_1_0_0 },
 	{ .compatible = "qcom,pcie-ipq8064", .data = &ops_2_1_0 },
+	{ .compatible = "qcom,pcie-ipq8064-v2", .data = &ops_2_1_0 },
 	{ .compatible = "qcom,pcie-apq8064", .data = &ops_2_1_0 },
 	{ .compatible = "qcom,pcie-msm8996", .data = &ops_2_3_2 },
 	{ .compatible = "qcom,pcie-ipq8074", .data = &ops_2_3_3 },