Required properties:
 - bank-width:          Width of NOR flash in bytes. GPMC supports 8-bit and
                        16-bit devices and so must be either 1 or 2 bytes.
-- compatible:          Documentation/devicetree/bindings/mtd/mtd-physmap.txt
+- compatible:          Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
 - gpmc,cs-on-ns:               Chip-select assertion time
 - gpmc,cs-rd-off-ns:   Chip-select de-assertion time for reads
 - gpmc,cs-wr-off-ns:   Chip-select de-assertion time for writes
 - gpmc,access-ns:      Start cycle to first data capture (read access)
 - gpmc,rd-cycle-ns:    Total read cycle time
 - gpmc,wr-cycle-ns:    Total write cycle time
-- linux,mtd-name:      Documentation/devicetree/bindings/mtd/mtd-physmap.txt
+- linux,mtd-name:      Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
 - reg:                 Chip-select, base address (relative to chip-select)
                        and size of NOR flash. Note that base address will be
                        typically 0 as this is the start of the chip-select.