diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt deleted file mode 100644 index 84c4111293bd..000000000000 --- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt +++ /dev/null @@ -1,114 +0,0 @@ -* Rockchip Pinmux Controller - -The Rockchip Pinmux Controller, enables the IC -to share one PAD to several functional blocks. The sharing is done by -multiplexing the PAD input/output signals. For each PAD there are several -muxing options with option 0 being the use as a GPIO. - -Please refer to pinctrl-bindings.txt in this directory for details of the -common pinctrl bindings used by client devices, including the meaning of the -phrase "pin configuration node". - -The Rockchip pin configuration node is a node of a group of pins which can be -used for a specific device or function. This node represents both mux and -config of the pins in that group. The 'pins' selects the function mode(also -named pin mode) this pin can work on and the 'config' configures various pad -settings such as pull-up, etc. - -The pins are grouped into up to 5 individual pin banks which need to be -defined as gpio sub-nodes of the pinmux controller. - -Required properties for iomux controller: - - compatible: should be - "rockchip,px30-pinctrl": for Rockchip PX30 - "rockchip,rv1108-pinctrl": for Rockchip RV1108 - "rockchip,rk2928-pinctrl": for Rockchip RK2928 - "rockchip,rk3066a-pinctrl": for Rockchip RK3066a - "rockchip,rk3066b-pinctrl": for Rockchip RK3066b - "rockchip,rk3128-pinctrl": for Rockchip RK3128 - "rockchip,rk3188-pinctrl": for Rockchip RK3188 - "rockchip,rk3228-pinctrl": for Rockchip RK3228 - "rockchip,rk3288-pinctrl": for Rockchip RK3288 - "rockchip,rk3308-pinctrl": for Rockchip RK3308 - "rockchip,rk3328-pinctrl": for Rockchip RK3328 - "rockchip,rk3368-pinctrl": for Rockchip RK3368 - "rockchip,rk3399-pinctrl": for Rockchip RK3399 - "rockchip,rk3568-pinctrl": for Rockchip RK3568 - - - rockchip,grf: phandle referencing a syscon providing the - "general register files" - -Optional properties for iomux controller: - - rockchip,pmu: phandle referencing a syscon providing the pmu registers - as some SoCs carry parts of the iomux controller registers there. - Required for at least rk3188 and rk3288. On the rk3368 this should - point to the PMUGRF syscon. - -Deprecated properties for iomux controller: - - reg: first element is the general register space of the iomux controller - It should be large enough to contain also separate pull registers. - second element is the separate pull register space of the rk3188. - Use rockchip,grf and rockchip,pmu described above instead. - -Required properties for gpio sub nodes: -See rockchip,gpio-bank.yaml - -Required properties for pin configuration node: - - rockchip,pins: 3 integers array, represents a group of pins mux and config - setting. The format is rockchip,pins = . - The MUX 0 means gpio and MUX 1 to N mean the specific device function. - The phandle of a node containing the generic pinconfig options - to use, as described in pinctrl-bindings.txt in this directory. - -Examples: - -#include - -... - -pinctrl@20008000 { - compatible = "rockchip,rk3066a-pinctrl"; - rockchip,grf = <&grf>; - - #address-cells = <1>; - #size-cells = <1>; - ranges; - - gpio0: gpio0@20034000 { - compatible = "rockchip,gpio-bank"; - reg = <0x20034000 0x100>; - interrupts = ; - clocks = <&clk_gates8 9>; - - gpio-controller; - #gpio-cells = <2>; - - interrupt-controller; - #interrupt-cells = <2>; - }; - - ... - - pcfg_pull_default: pcfg_pull_default { - bias-pull-pin-default - }; - - uart2 { - uart2_xfer: uart2-xfer { - rockchip,pins = <1 RK_PB0 1 &pcfg_pull_default>, - <1 RK_PB1 1 &pcfg_pull_default>; - }; - }; -}; - -uart2: serial@20064000 { - compatible = "snps,dw-apb-uart"; - reg = <0x20064000 0x400>; - interrupts = ; - reg-shift = <2>; - reg-io-width = <1>; - clocks = <&mux_uart2>; - - pinctrl-names = "default"; - pinctrl-0 = <&uart2_xfer>; -}; diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml new file mode 100644 index 000000000000..07c0a98ef9c6 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml @@ -0,0 +1,184 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/rockchip,pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip Pinmux Controller + +maintainers: + - Heiko Stuebner + +description: | + The Rockchip Pinmux Controller enables the IC to share one PAD + to several functional blocks. The sharing is done by multiplexing + the PAD input/output signals. For each PAD there are several muxing + options with option 0 being used as a GPIO. + + Please refer to pinctrl-bindings.txt in this directory for details of the + common pinctrl bindings used by client devices, including the meaning of the + phrase "pin configuration node". + + The Rockchip pin configuration node is a node of a group of pins which can be + used for a specific device or function. This node represents both mux and + config of the pins in that group. The 'pins' selects the function mode + (also named pin mode) this pin can work on and the 'config' configures + various pad settings such as pull-up, etc. + + The pins are grouped into up to 9 individual pin banks which need to be + defined as gpio sub-nodes of the pinmux controller. + +properties: + compatible: + enum: + - rockchip,px30-pinctrl + - rockchip,rk2928-pinctrl + - rockchip,rk3066a-pinctrl + - rockchip,rk3066b-pinctrl + - rockchip,rk3128-pinctrl + - rockchip,rk3188-pinctrl + - rockchip,rk3228-pinctrl + - rockchip,rk3288-pinctrl + - rockchip,rk3308-pinctrl + - rockchip,rk3328-pinctrl + - rockchip,rk3368-pinctrl + - rockchip,rk3399-pinctrl + - rockchip,rk3568-pinctrl + - rockchip,rv1108-pinctrl + + rockchip,grf: + $ref: "/schemas/types.yaml#/definitions/phandle" + description: + The phandle of the syscon node for the GRF registers. + + rockchip,pmu: + $ref: "/schemas/types.yaml#/definitions/phandle" + description: + The phandle of the syscon node for the PMU registers, + as some SoCs carry parts of the iomux controller registers there. + Required for at least rk3188 and rk3288. On the rk3368 this should + point to the PMUGRF syscon. + + "#address-cells": + enum: [1, 2] + + "#size-cells": + enum: [1, 2] + + ranges: true + +required: + - compatible + - rockchip,grf + - "#address-cells" + - "#size-cells" + - ranges + +patternProperties: + "gpio@[0-9a-f]+$": + type: object + + $ref: "/schemas/gpio/rockchip,gpio-bank.yaml#" + + unevaluatedProperties: false + + "pcfg-[a-z0-9-]+$": + type: object + properties: + bias-disable: true + + bias-pull-down: true + + bias-pull-pin-default: true + + bias-pull-up: true + + drive-strength: + minimum: 0 + maximum: 20 + + input-enable: true + + input-schmitt-enable: true + + output-high: true + + output-low: true + + additionalProperties: false + +additionalProperties: + type: object + additionalProperties: + type: object + properties: + rockchip,pins: + $ref: "/schemas/types.yaml#/definitions/uint32-matrix" + minItems: 1 + items: + items: + - minimum: 0 + maximum: 8 + description: + Pin bank. + - minimum: 0 + maximum: 31 + description: + Pin bank index. + - minimum: 0 + maximum: 6 + description: + Mux 0 means GPIO and mux 1 to N means + the specific device function. + - description: + The phandle of a node contains the generic pinconfig options + to use as described in pinctrl-bindings.txt. + +examples: + - | + #include + #include + + pinctrl: pinctrl { + compatible = "rockchip,rk3066a-pinctrl"; + rockchip,grf = <&grf>; + + #address-cells = <1>; + #size-cells = <1>; + ranges; + + gpio0: gpio@20034000 { + compatible = "rockchip,gpio-bank"; + reg = <0x20034000 0x100>; + interrupts = ; + clocks = <&clk_gates8 9>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + pcfg_pull_default: pcfg-pull-default { + bias-pull-pin-default; + }; + + uart2 { + uart2_xfer: uart2-xfer { + rockchip,pins = <1 RK_PB0 1 &pcfg_pull_default>, + <1 RK_PB1 1 &pcfg_pull_default>; + }; + }; + }; + + uart2: serial@20064000 { + compatible = "snps,dw-apb-uart"; + reg = <0x20064000 0x400>; + interrupts = ; + clocks = <&mux_uart2>; + pinctrl-0 = <&uart2_xfer>; + pinctrl-names = "default"; + reg-io-width = <1>; + reg-shift = <2>; + };