33 pub enum PciError {  enum
63 impl Display for PciError {  implementation
104     pub fn from_fdt(fdt: &Fdt) -> Result<Self, PciError> {  in from_fdt()  argument
129 fn pci_node(fdt: &Fdt) -> Result<FdtNode, PciError> {  in pci_node()  argument
131         .map_err(PciError::FdtErrorPci)?  in pci_node()
133         .ok_or(PciError::FdtNoPci)  in pci_node()
137 fn parse_cam_range(pci_node: &FdtNode) -> Result<Range<usize>, PciError> {  in parse_cam_range()  argument
140         .map_err(PciError::FdtErrorReg)?  in parse_cam_range()
141         .ok_or(PciError::FdtMissingReg)?  in parse_cam_range()
143         .ok_or(PciError::FdtRegEmpty)?;  in parse_cam_range()
145     let cam_size = pci_reg.size.ok_or(PciError::FdtRegMissingSize)? as usize;  in parse_cam_range()
151         return Err(PciError::CamWrongSize(cam_size));  in parse_cam_range()
159 fn parse_ranges(pci_node: &FdtNode) -> Result<Range<u32>, PciError> {  in parse_ranges()  argument
165         .map_err(PciError::FdtErrorRanges)?  in parse_ranges()
166         .ok_or(PciError::FdtMissingRanges)?  in parse_ranges()
188                 return Err(PciError::RangeAddressMismatch { bus_address, cpu_physical });  in parse_ranges()
196         return Err(PciError::NoSuitableRange);  in parse_ranges()