#ifndef _PCI_HOST_COMMON_H
#define _PCI_HOST_COMMON_H
+ #include <linux/delay.h>
+ #include "../pci.h"
+
struct pci_ecam_ops;
+/**
+ * struct pci_host_perst - PERST# GPIO descriptor
+ * @list: List node for linking multiple PERST# GPIOs
+ * @desc: GPIO descriptor for PERST# signal
+ *
+ * This structure holds a single PERST# GPIO descriptor.
+ */
+struct pci_host_perst {
+ struct list_head list;
+ struct gpio_desc *desc;
+};
+
+/**
+ * struct pci_host_port - Generic Root Port properties
+ * @list: List node for linking multiple ports
+ * @perst: List of PERST# GPIO descriptors for this port and its children
+ *
+ * This structure contains common properties that can be parsed from
+ * Root Port device tree nodes.
+ */
+struct pci_host_port {
+ struct list_head list;
+ struct list_head perst;
+};
+
+void pci_host_common_delete_ports(void *data);
+int pci_host_common_parse_ports(struct device *dev,
+ struct pci_host_bridge *bridge);
int pci_host_common_probe(struct platform_device *pdev);
int pci_host_common_init(struct platform_device *pdev,
struct pci_host_bridge *bridge,
struct pci_config_window *pci_host_common_ecam_create(struct device *dev,
struct pci_host_bridge *bridge, const struct pci_ecam_ops *ops);
+bool pci_host_common_d3cold_possible(struct pci_host_bridge *bridge,
+ bool *pme_capable);
++
+ /**
+ * pci_host_common_link_train_delay - Wait 100 ms if link speed > 5 GT/s
+ * @max_link_speed: the maximum link speed (2 = 5.0 GT/s, 3 = 8.0 GT/s, ...)
+ *
+ * Must be called after Link training completes and before the first
+ * Configuration Request is sent.
+ */
+ static inline void pci_host_common_link_train_delay(int max_link_speed)
+ {
+ if (max_link_speed > 2)
+ msleep(PCIE_RESET_CONFIG_WAIT_MS);
+ }
+
#endif