| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/pinctrl/fsl,imx93-pinctrl.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Freescale IMX93 IOMUX Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Peng Fan <peng.fan@nxp.com> |
| 11 | |
| 12 | description: |
| 13 | Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory |
| 14 | for common binding part and usage. |
| 15 | |
| 16 | allOf: |
| 17 | - $ref: pinctrl.yaml# |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | const: fsl,imx93-iomuxc |
| 22 | |
| 23 | reg: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | # Client device subnode's properties |
| 27 | patternProperties: |
| 28 | 'grp$': |
| 29 | type: object |
| 30 | description: |
| 31 | Pinctrl node's client devices use subnodes for desired pin configuration. |
| 32 | Client device subnodes use below standard properties. |
| 33 | |
| 34 | properties: |
| 35 | fsl,pins: |
| 36 | description: |
| 37 | each entry consists of 6 integers and represents the mux and config |
| 38 | setting for one pin. The first 5 integers <mux_reg conf_reg input_reg |
| 39 | mux_val input_val> are specified using a PIN_FUNC_ID macro, which can |
| 40 | be found in <arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h>. The last |
| 41 | integer CONFIG is the pad setting value like pull-up on this pin. Please |
| 42 | refer to i.MX8M Plus Reference Manual for detailed CONFIG settings. |
| 43 | $ref: /schemas/types.yaml#/definitions/uint32-matrix |
| 44 | items: |
| 45 | items: |
| 46 | - description: | |
| 47 | "mux_reg" indicates the offset of mux register. |
| 48 | - description: | |
| 49 | "conf_reg" indicates the offset of pad configuration register. |
| 50 | - description: | |
| 51 | "input_reg" indicates the offset of select input register. |
| 52 | - description: | |
| 53 | "mux_val" indicates the mux value to be applied. |
| 54 | - description: | |
| 55 | "input_val" indicates the select input value to be applied. |
| 56 | - description: | |
| 57 | "pad_setting" indicates the pad configuration value to be applied. |
| 58 | |
| 59 | |
| 60 | required: |
| 61 | - fsl,pins |
| 62 | |
| 63 | additionalProperties: false |
| 64 | |
| 65 | required: |
| 66 | - compatible |
| 67 | - reg |
| 68 | |
| 69 | additionalProperties: false |
| 70 | |
| 71 | examples: |
| 72 | # Pinmux controller node |
| 73 | - | |
| 74 | iomuxc: pinctrl@443c0000 { |
| 75 | compatible = "fsl,imx93-iomuxc"; |
| 76 | reg = <0x30330000 0x10000>; |
| 77 | |
| 78 | pinctrl_uart3: uart3grp { |
| 79 | fsl,pins = |
| 80 | <0x48 0x1f8 0x41c 0x1 0x0 0x49>, |
| 81 | <0x4c 0x1fc 0x418 0x1 0x0 0x49>; |
| 82 | }; |
| 83 | }; |
| 84 | |
| 85 | ... |