Add a device tree binding for the opencores GPIO controller. On FPGA Development boards with GPIOs the OpenRISC architecture uses the opencores gpio verilog rtl which is compatible with the MMIO GPIO driver.
Link: https://opencores.org/projects/gpio Signed-off-by: Stafford Horne <[email protected]> --- Since v2: - Fixup patch to simply add opencores,gpio and add an example. Since v1: - Fix schema to actually match the example. Documentation/devicetree/bindings/gpio/gpio-mmio.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml b/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml index ee5d5d25ae82..d44edc181e0a 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml +++ b/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml @@ -23,6 +23,7 @@ properties: - ni,169445-nand-gpio - wd,mbl-gpio # Western Digital MyBook Live memory-mapped GPIO controller - intel,ixp4xx-expansion-bus-mmio-gpio + - opencores,gpio big-endian: true @@ -160,3 +161,11 @@ examples: intel,ixp4xx-eb-write-enable = <1>; }; }; + + gpio@91000000 { + compatible = "opencores,gpio"; + reg = <0x91000000 0x1>, <0x91000001 0x1>; + reg-names = "dat", "dirout"; + gpio-controller; + #gpio-cells = <2>; + }; -- 2.51.0
