Hi, this series introduces pinctrl support for the Allwinner A523 family of SoCs (comprising A523, A527, T527). [1] The first three patches extend the sunxi pinctrl core code to deal with some specialities of the new SoC: it uses every of the 11 possible banks except the first one, which required some register remapping. The first patch here is actually some cleanup, which we should take regardless, I think, since it fixes some hack we introduced with the D1 support. The main feature is actually patch 4, which introduces a new way to express the required pinmux values for each function/pin pair. Traditionally, we dumped a rather large table of data into the (single image!) kernel for that, but this approach now puts that value into the DT, and builds the table at runtime. This patch was posted twice before [1][2], the last time LinusW seemed to be fine with the idea, just complained about the abuse of the generic pinmux property. I changed that to allwinner,pinmux now. For yet another alternative, see below. The rest of the patches are the usual suspects: the two files for the two pinctrl instances of the new SoC (now very small), and the DT binding. Based on v6.12-rc1. Please have a look, review and test! Cheers, Andre [1] https://linux-sunxi.org/A523#Family_of_sun55iw3 [2] https://patchwork.ozlabs.org/project/linux-gpio/cover/20171113012523.2328-1-andre.przywara@xxxxxxx/ [3] https://lore.kernel.org/linux-arm-kernel/20221110014255.20711-1-andre.przywara@xxxxxxx/ P.S. LinusW's comment about "pinmux" being something different made me think about whether we should adopt an even different approach, and follow the Apple silicon GPIO driver. That conflates the existing "pins" and "allwinner,pinmux" properties into the standard "pinmux" one, like this: uart0_pb_pins: uart0-pb-pins { pinmux = <SUNXI_PIN(PB, 9, 2)>, <SUNXI_PIN(PB, 10, 2)>; function = "uart0"; }; That looks like a neat solution to me, with the huge drawback of requiring a completely different of_xlate function, which I guess means a more or less completely separate pinctrl driver. Let me know if you think that's worthwhile. Andre Przywara (7): pinctrl: sunxi: refactor pinctrl variants into flags pinctrl: sunxi: move bank K register offset pinctrl: sunxi: support moved power configuration registers pinctrl: sunxi: allow reading mux values from DT dt-bindings: pinctrl: add compatible for Allwinner A523/T527 pinctrl: sunxi: Add support for the Allwinner A523 pinctrl: sunxi: Add support for the secondary A523 GPIO ports .../pinctrl/allwinner,sun4i-a10-pinctrl.yaml | 23 +- drivers/pinctrl/sunxi/Kconfig | 10 + drivers/pinctrl/sunxi/Makefile | 3 + drivers/pinctrl/sunxi/pinctrl-sun20i-d1.c | 6 +- drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c | 8 +- drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c | 54 +++ drivers/pinctrl/sunxi/pinctrl-sun55i-a523.c | 54 +++ drivers/pinctrl/sunxi/pinctrl-sun5i.c | 8 +- drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c | 8 +- drivers/pinctrl/sunxi/pinctrl-sun8i-v3s.c | 7 +- drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c | 357 ++++++++++++++++++ drivers/pinctrl/sunxi/pinctrl-sunxi.c | 54 ++- drivers/pinctrl/sunxi/pinctrl-sunxi.h | 45 ++- 13 files changed, 586 insertions(+), 51 deletions(-) create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun55i-a523.c create mode 100644 drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c -- 2.46.2
