On Fri, Aug 07, 2020 at 03:49:04PM +0800, Zhiyong Tao wrote: > The commit adds mt8192 compatible node in binding document. > > Signed-off-by: Zhiyong Tao <zhiyong.tao@xxxxxxxxxxxx> > --- > .../bindings/pinctrl/pinctrl-mt8192.yaml | 149 ++++++++++++++++++ > 1 file changed, 149 insertions(+) > create mode 100755 Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml Don't set execute permission. > > diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml > new file mode 100755 > index 000000000000..3b46bbfa38ec > --- /dev/null > +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml > @@ -0,0 +1,149 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/pinctrl/pinctrl-mt8192.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Mediatek MT8192 Pin Controller > + > +maintainers: > + - Sean Wang <sean.wang@xxxxxxxxxxxx> > + > +description: | > + The Mediatek's Pin controller is used to control SoC pins. > + > +properties: > + compatible: > + const: mediatek,mt8192-pinctrl > + > + gpio-controller: true > + > + '#gpio-cells': > + description: | > + Number of cells in GPIO specifier. Since the generic GPIO binding is used, > + the amount of cells must be specified as 2. See the below > + mentioned gpio binding representation for description of particular cells. > + const: 2 > + > + gpio-ranges: > + description: gpio valid number range. > + maxItems: 1 > + > + reg: > + description: | > + Physical address base for gpio base registers. There are 11 GPIO > + physical address base in mt8192. > + maxItems: 11 > + > + reg-names: > + description: | > + Gpio base register names. > + maxItems: 11 > + > + interrupt-controller: true > + > + '#interrupt-cells': > + const: 2 > + > + interrupts: > + description: The interrupt outputs to sysirq. > + maxItems: 1 > + > +#PIN CONFIGURATION NODES > +patternProperties: > + '^pins': > + type: object > + description: | > + A pinctrl node should contain at least one subnodes representing the > + pinctrl groups available on the machine. Each subnode will list the > + pins it needs, and how they should be configured, with regard to muxer > + configuration, pullups, drive strength, input enable/disable and > + input schmitt. > + An example of using macro: > + pincontroller { > + /* GPIO0 set as multifunction GPIO0 */ > + state_0_node_a { > + pinmux = <PINMUX_GPIO0__FUNC_GPIO0>; > + }; > + /* GPIO1 set as multifunction PWM */ > + state_0_node_a { > + pinmux = <PINMUX_GPIO1__FUNC_PWM_1>; > + }; > + }; > + properties: > + pinmux: > + $ref: "pinmux-node.yaml" This is at the wrong level. Should be under '^pins'. > + description: | > + Integer array, represents gpio pin number and mux setting. > + Supported pin number and mux varies for different SoCs, and are defined > + as macros in dt-bindings/pinctrl/<soc>-pinfunc.h directly. > + > + drive-strength: > + description: | > + It can support some arguments, such as MTK_DRIVE_4mA, MTK_DRIVE_6mA, etc. See > + dt-bindings/pinctrl/mt65xx.h. It can only support 2/4/6/8/10/12/14/16mA in mt8192. > + enum: [2, 4, 6, 8, 10, 12, 14, 16] > + > + bias-pull-down: true > + > + bias-pull-up: true > + > + bias-disable: true > + > + output-high: true > + > + output-low: true > + > + input-enable: true > + > + input-disable: true > + > + input-schmitt-enable: true > + > + input-schmitt-disable: true > + > + required: > + - pinmux > + > + additionalProperties: false > + > +required: > + - compatible > + - reg > + - interrupts > + - interrupt-controller > + - '#interrupt-cells' > + - gpio-controller > + - '#gpio-cells' > + - gpio-ranges > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/pinctrl/mt8192-pinfunc.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + pio: pinctrl@10005000 { > + compatible = "mediatek,mt8192-pinctrl"; > + reg = <0x10005000 0x1000>, > + <0x11c20000 0x1000>, > + <0x11d10000 0x1000>, > + <0x11d30000 0x1000>, > + <0x11d40000 0x1000>, > + <0x11e20000 0x1000>, > + <0x11e70000 0x1000>, > + <0x11ea0000 0x1000>, > + <0x11f20000 0x1000>, > + <0x11f30000 0x1000>, > + <0x1000b000 0x1000>; > + reg-names = "iocfg0", "iocfg_rm", "iocfg_bm", > + "iocfg_bl", "iocfg_br", "iocfg_lm", > + "iocfg_lb", "iocfg_rt", "iocfg_lt", > + "iocfg_tl", "eint"; > + gpio-controller; > + #gpio-cells = <2>; > + gpio-ranges = <&pio 0 0 220>; > + interrupt-controller; > + interrupts = <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH 0>; > + #interrupt-cells = <2>; Would be good to have a pin node here so you can test you've got the schema correct. > + }; > -- > 2.18.0
