Hi Linus, this is 4th round of gpio/pincontroller for RZ/A1 devices. As you suggested in v3 review, I have now added what we called pinmux flags to the list of standard pinconf generic properties, and we're now using generic parsing routines to collect them and apply them when multiplexing pins.
The device tree bindings changed significantly, and as anticipated I have not incorporated Rob's ack as I would like him to have a look there again. As a bonus, parsing of pin mux nodes now happens at dt_node_to_map() time, and not at probe time. This makes the driver play nicely with device tree overlays, that as Geert pointed out, were not supported in v3. Tested with SCIF, RIIC, ETHER and gpio-leds on Genmai board. Thanks j v1 -> v2: - change pin configuration flags as suggested by Chris - gpio set direction function fixed as suggested by Chris - add some more example on pin configuration flag usage to dt-binding doc - fix gpio-controller names to remove unit address as suggested by Geert - some comments chopped here and there to make the driver less verbose v2 -> v3: - fix grammar and syntax in comment and documentation - fix code style (reverse xmas tree ordering in variable declaration) - use irqsave/irqrestore in spinlock lock/unlock - use devm_ version of kasprintf (memory returned was not properly free) - use bitops.h operation ffs and fls to make sure a single bit is set in pmx mask - Add Geert's reviewed-by to DTS patches v3 -> v4: - use "pinmux" property in pmx sub-nodes in place of "renesas,pins" - use pinconf standard properties to set pin mux additional flags - add "bi-directional" and "output-enable" to pinconf generic properties - perform pmx function parsing at dt_node_to_map() time - change DT bindings to use GENERIC_PINCONF - change DT bindings to allow sub-nodes to have "pinmux" property specified - several renames (register names, DT parse functions, set_mux() function) Jacopo Mondi (9): pinctrl: generic: Add bi-directional and output-enable pinctrl: Renesas RZ/A1 pin and gpio controller dt-bindings: pinctrl: Add RZ/A1 bindings doc arm: dts: dt-bindings: Add Renesas RZ/A1 pinctrl header arm: dts: r7s72100: Add pin controller node arm: dts: genmai: Add SCIF2 pin group arm: dts: genmai: Add RIIC2 pin group arm: dts: genmai: Add user led device nodes arm: dts: genmai: Add ethernet pin group .../bindings/pinctrl/pinctrl-bindings.txt | 2 + .../bindings/pinctrl/renesas,rza1-pinctrl.txt | 218 +++++ arch/arm/boot/dts/r7s72100-genmai.dts | 76 ++ arch/arm/boot/dts/r7s72100.dtsi | 78 ++ drivers/pinctrl/Kconfig | 11 + drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinconf-generic.c | 3 + drivers/pinctrl/pinctrl-rza1.c | 995 +++++++++++++++++++++ include/dt-bindings/pinctrl/r7s72100-pinctrl.h | 16 + include/linux/pinctrl/pinconf-generic.h | 3 + 10 files changed, 1403 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt create mode 100644 drivers/pinctrl/pinctrl-rza1.c create mode 100644 include/dt-bindings/pinctrl/r7s72100-pinctrl.h -- 2.7.4
