183  * @perst_map: PERST regmap
186  * @reset: PERST# GPIO
193  * @perst_en: Flag for PERST enable
194  * @perst_sep_en: Flag for PERST separation enable
198  * @perst_irq: PERST# IRQ
593 	syscon = of_parse_phandle(dev->of_node, "qcom,perst-regs", 0);  in qcom_pcie_ep_get_io_resources()
595 		dev_dbg(dev, "PERST separation not available\n");  in qcom_pcie_ep_get_io_resources()
604 	ret = of_property_read_u32_index(dev->of_node, "qcom,perst-regs",  in qcom_pcie_ep_get_io_resources()
607 		dev_err(dev, "No Perst Enable offset in syscon\n");  in qcom_pcie_ep_get_io_resources()
611 	ret = of_property_read_u32_index(dev->of_node, "qcom,perst-regs",  in qcom_pcie_ep_get_io_resources()
614 		dev_err(dev, "No Perst Separation Enable offset in syscon\n");  in qcom_pcie_ep_get_io_resources()
713 	u32 perst;  in qcom_pcie_ep_perst_irq_thread()  local
715 	perst = gpiod_get_value(pcie_ep->reset);  in qcom_pcie_ep_perst_irq_thread()
716 	if (perst) {  in qcom_pcie_ep_perst_irq_thread()
717 		dev_dbg(dev, "PERST asserted by host. Shutting down the PCIe link!\n");  in qcom_pcie_ep_perst_irq_thread()
720 		dev_dbg(dev, "PERST de-asserted by host. Starting link training!\n");  in qcom_pcie_ep_perst_irq_thread()
725 			 (perst ? IRQF_TRIGGER_HIGH : IRQF_TRIGGER_LOW));  in qcom_pcie_ep_perst_irq_thread()
767 		dev_err(&pdev->dev, "Failed to request PERST IRQ\n");  in qcom_pcie_ep_enable_irq_resources()