pci add register drivers

Signed-off-by: lipengfei28 <[email protected]>

Author: lipengfei28

drivers/drivers_initialize.c

@@ -36,6 +36,7 @@
 #include <nuttx/net/tun.h>
 #include <nuttx/net/telnet.h>
 #include <nuttx/note/note_driver.h>
+#include <nuttx/pci/pci.h>
 #include <nuttx/power/pm.h>
 #include <nuttx/power/regulator.h>
 #include <nuttx/segger/rtt.h>
@@ -253,6 +254,10 @@ void drivers_initialize(void)
   mtd_loop_register();
 #endif
 
+#ifdef CONFIG_PCI
+  pci_register_drivers();
+#endif
+
 #ifdef CONFIG_DRIVERS_VIRTIO
   virtio_register_drivers();
 #endif

include/nuttx/pci/pci.h

@@ -742,4 +742,14 @@ int pci_bus_write_config_word(FAR struct pci_bus_s *bus, unsigned int devfn,
 int pci_bus_write_config_dword(FAR struct pci_bus_s *bus, unsigned int devfn,
                                int where, uint32_t val);
 
+/****************************************************************************
+ * Name: pci_register_drivers
+ *
+ * Description:
+ *   Register all the pci drivers to pci bus
+ *
+ ****************************************************************************/
+
+int pci_register_drivers(void);
+
 #endif /* __INCLUDE_NUTTX_PCI_PCI_H */