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dt-bindings: pinctrl: fsl,imx6ul-pinctrl: convert to YAML
Convert i.MX6UL pinctrl bindings to YAML. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sre@kernel.org> Link: https://lore.kernel.org/r/20240226212740.2019837-2-sre@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Sebastian Reichel
Rob Herring
parent
ad8ee969d7
commit
7cfc8db2c0
2 changed files with 116 additions and 37 deletions
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* Freescale i.MX6 UltraLite IOMUX Controller
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Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
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and usage.
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Required properties:
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- compatible: "fsl,imx6ul-iomuxc" for main IOMUX controller or
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"fsl,imx6ull-iomuxc-snvs" for i.MX 6ULL's SNVS IOMUX controller.
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- fsl,pins: each entry consists of 6 integers and represents the mux and config
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setting for one pin. The first 5 integers <mux_reg conf_reg input_reg mux_val
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input_val> are specified using a PIN_FUNC_ID macro, which can be found in
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imx6ul-pinfunc.h under device tree source folder. The last integer CONFIG is
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the pad setting value like pull-up on this pin. Please refer to i.MX6 UltraLite
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Reference Manual for detailed CONFIG settings.
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CONFIG bits definition:
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PAD_CTL_HYS (1 << 16)
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PAD_CTL_PUS_100K_DOWN (0 << 14)
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PAD_CTL_PUS_47K_UP (1 << 14)
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PAD_CTL_PUS_100K_UP (2 << 14)
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PAD_CTL_PUS_22K_UP (3 << 14)
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PAD_CTL_PUE (1 << 13)
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PAD_CTL_PKE (1 << 12)
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PAD_CTL_ODE (1 << 11)
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PAD_CTL_SPEED_LOW (0 << 6)
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PAD_CTL_SPEED_MED (1 << 6)
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PAD_CTL_SPEED_HIGH (3 << 6)
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PAD_CTL_DSE_DISABLE (0 << 3)
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PAD_CTL_DSE_260ohm (1 << 3)
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PAD_CTL_DSE_130ohm (2 << 3)
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PAD_CTL_DSE_87ohm (3 << 3)
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PAD_CTL_DSE_65ohm (4 << 3)
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PAD_CTL_DSE_52ohm (5 << 3)
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PAD_CTL_DSE_43ohm (6 << 3)
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PAD_CTL_DSE_37ohm (7 << 3)
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PAD_CTL_SRE_FAST (1 << 0)
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PAD_CTL_SRE_SLOW (0 << 0)
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@ -0,0 +1,116 @@
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pinctrl/fsl,imx6ul-pinctrl.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale IMX6UL IOMUX Controller
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maintainers:
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- Dong Aisheng <aisheng.dong@nxp.com>
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description:
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Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
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for common binding part and usage.
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allOf:
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- $ref: pinctrl.yaml#
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properties:
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compatible:
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enum:
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- fsl,imx6ul-iomuxc
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- fsl,imx6ull-iomuxc-snvs
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reg:
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maxItems: 1
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# Client device subnode's properties
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patternProperties:
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'grp$':
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type: object
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description:
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Pinctrl node's client devices use subnodes for desired pin configuration.
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Client device subnodes use below standard properties.
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properties:
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fsl,pins:
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description:
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each entry consists of 6 integers and represents the mux and config
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setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
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mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
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be found in <arch/arm/boot/dts/imx6ul-pinfunc.h>. The last integer
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CONFIG is the pad setting value like pull-up on this pin. Please
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refer to i.MX6UL Reference Manual for detailed CONFIG settings.
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$ref: /schemas/types.yaml#/definitions/uint32-matrix
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items:
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items:
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- description: |
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"mux_reg" indicates the offset of mux register.
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- description: |
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"conf_reg" indicates the offset of pad configuration register.
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- description: |
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"input_reg" indicates the offset of select input register.
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- description: |
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"mux_val" indicates the mux value to be applied.
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- description: |
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"input_val" indicates the select input value to be applied.
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- description: |
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"pad_setting" indicates the pad configuration value to be applied:
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PAD_CTL_HYS (1 << 16)
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PAD_CTL_PUS_100K_DOWN (0 << 14)
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PAD_CTL_PUS_47K_UP (1 << 14)
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PAD_CTL_PUS_100K_UP (2 << 14)
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PAD_CTL_PUS_22K_UP (3 << 14)
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PAD_CTL_PUE (1 << 13)
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PAD_CTL_PKE (1 << 12)
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PAD_CTL_ODE (1 << 11)
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PAD_CTL_SPEED_LOW (0 << 6)
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PAD_CTL_SPEED_MED (1 << 6)
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PAD_CTL_SPEED_HIGH (3 << 6)
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PAD_CTL_DSE_DISABLE (0 << 3)
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PAD_CTL_DSE_260ohm (1 << 3)
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PAD_CTL_DSE_130ohm (2 << 3)
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PAD_CTL_DSE_87ohm (3 << 3)
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PAD_CTL_DSE_65ohm (4 << 3)
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PAD_CTL_DSE_52ohm (5 << 3)
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PAD_CTL_DSE_43ohm (6 << 3)
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PAD_CTL_DSE_37ohm (7 << 3)
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PAD_CTL_SRE_FAST (1 << 0)
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PAD_CTL_SRE_SLOW (0 << 0)
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required:
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- fsl,pins
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additionalProperties: false
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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iomuxc: pinctrl@20e0000 {
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compatible = "fsl,imx6ul-iomuxc";
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reg = <0x020e0000 0x4000>;
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mux_uart: uartgrp {
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fsl,pins = <
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0x0084 0x0310 0x0000 0 0 0x1b0b1
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0x0088 0x0314 0x0624 0 3 0x1b0b1
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>;
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};
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};
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- |
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iomuxc_snvs: pinctrl@2290000 {
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compatible = "fsl,imx6ull-iomuxc-snvs";
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reg = <0x02290000 0x4000>;
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pinctrl_snvs_usbc_det: snvsusbcdetgrp {
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fsl,pins = <
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0x0010 0x0054 0x0000 0x5 0x0 0x130b0
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>;
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};
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};
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