xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/pinctrl/nvidia,tegra234-pinmux-common.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/nvidia,tegra234-pinmux-common.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NVIDIA Tegra234 Pinmux Controller

maintainers:
  - Thierry Reding <thierry.reding@gmail.com>
  - Jon Hunter <jonathanh@nvidia.com>

properties:
  reg:
    items:
      - description: pinmux registers

patternProperties:
  "^pinmux(-[a-z0-9-]+)?$":
    type: object

    # pin groups
    additionalProperties:
      $ref: nvidia,tegra-pinmux-common.yaml
      # We would typically use unevaluatedProperties here but that has the
      # downside that all the properties in the common bindings become valid
      # for all chip generations. In this case, however, we want the per-SoC
      # bindings to be able to override which of the common properties are
      # allowed, since not all pinmux generations support the same sets of
      # properties. This way, the common bindings define the format of the
      # properties but the per-SoC bindings define which of them apply to a
      # given chip.
      additionalProperties: false
      properties:
        nvidia,function:
          enum: [ gp, uartc, i2c8, spi2, i2c2, can1, can0, rsvd0, eth0, eth2,
                  eth1, dp, eth3, i2c4, i2c7, i2c9, eqos, pe2, pe1, pe0, pe3,
                  pe4, pe5, pe6, pe7, pe8, pe9, pe10, qspi0, qspi1, qpsi,
                  sdmmc1, sce, soc, gpio, hdmi, ufs0, spi3, spi1, uartb, uarte,
                  usb, extperiph2, extperiph1, i2c3, vi0, i2c5, uarta, uartd,
                  i2c1, i2s4, i2s6, aud, spi5, touch, uartj, rsvd1, wdt, tsc,
                  dmic3, led, vi0_alt, i2s5, nv, extperiph3, extperiph4, spi4,
                  ccla, i2s1, i2s2, i2s3, i2s8, rsvd2, dmic5, dca, displayb,
                  displaya, vi1, dcb, dmic1, dmic4, i2s7, dmic2, dspk0, rsvd3,
                  tsc_alt, istctrl, vi1_alt, dspk1, igpu ]

        # out of the common properties, only these are allowed for Tegra234
        nvidia,pins: true
        nvidia,pull: true
        nvidia,tristate: true
        nvidia,schmitt: true
        nvidia,enable-input: true
        nvidia,open-drain: true
        nvidia,lock: true
        nvidia,drive-type: true
        nvidia,io-hv: true

      required:
        - nvidia,pins

required:
  - compatible
  - reg

additionalProperties: true
...