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The 'phandle-array' type is a bit ambiguous. It can be either just an
array of phandles or an array of phandles plus args. Many schemas for
phandle-array properties aren't clear in the schema which case applies
though the description usually describes it.
The array of phandles case boils down to needing:
items:
maxItems: 1
The phandle plus args cases should typically take this form:
items:
- items:
- description: A phandle
- description: 1st arg cell
- description: 2nd arg cell
With this change, some examples need updating so that the bracketing of
property values matches the schema.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Georgi Djakov <djakov@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20220119015038.2433585-1-robh@kernel.org
202 lines
4.6 KiB
YAML
202 lines
4.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/usb/nvidia,tegra-xudc.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Device tree binding for NVIDIA Tegra XUSB device mode controller (XUDC)
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description:
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The Tegra XUDC controller supports both USB 2.0 HighSpeed/FullSpeed and
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USB 3.0 SuperSpeed protocols.
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maintainers:
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- Nagarjuna Kristam <nkristam@nvidia.com>
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- JC Kuo <jckuo@nvidia.com>
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- Thierry Reding <treding@nvidia.com>
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properties:
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compatible:
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items:
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- enum:
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- nvidia,tegra210-xudc # For Tegra210
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- nvidia,tegra186-xudc # For Tegra186
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- nvidia,tegra194-xudc # For Tegra194
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reg:
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minItems: 2
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items:
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- description: XUSB device controller registers
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- description: XUSB device PCI Config registers
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- description: XUSB device registers.
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reg-names:
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minItems: 2
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items:
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- const: base
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- const: fpci
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- const: ipfs
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interrupts:
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maxItems: 1
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description: Must contain the XUSB device interrupt.
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clocks:
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minItems: 4
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items:
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- description: Clock to enable core XUSB dev clock.
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- description: Clock to enable XUSB super speed clock.
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- description: Clock to enable XUSB super speed dev clock.
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- description: Clock to enable XUSB high speed dev clock.
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- description: Clock to enable XUSB full speed dev clock.
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clock-names:
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minItems: 4
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items:
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- const: dev
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- const: ss
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- const: ss_src
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- const: fs_src
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- const: hs_src
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interconnects:
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items:
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- description: memory read client
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- description: memory write client
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interconnect-names:
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items:
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- const: dma-mem # read
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- const: write
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iommus:
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maxItems: 1
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power-domains:
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items:
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- description: XUSBB(device) power-domain
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- description: XUSBA(superspeed) power-domain
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power-domain-names:
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items:
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- const: dev
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- const: ss
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nvidia,xusb-padctl:
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$ref: /schemas/types.yaml#/definitions/phandle
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description:
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phandle to the XUSB pad controller that is used to configure the USB pads
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used by the XUDC controller.
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phys:
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minItems: 1
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description:
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Must contain an entry for each entry in phy-names.
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See ../phy/phy-bindings.txt for details.
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phy-names:
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minItems: 1
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items:
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- const: usb2-0
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- const: usb2-1
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- const: usb2-2
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- const: usb2-3
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- const: usb3-0
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- const: usb3-1
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- const: usb3-2
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- const: usb3-3
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avddio-usb-supply:
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description: PCIe/USB3 analog logic power supply. Must supply 1.05 V.
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hvdd-usb-supply:
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description: USB controller power supply. Must supply 3.3 V.
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- clocks
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- clock-names
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- power-domains
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- power-domain-names
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- nvidia,xusb-padctl
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- phys
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- phy-names
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- nvidia,tegra210-xudc
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then:
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properties:
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reg:
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minItems: 3
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reg-names:
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minItems: 3
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clocks:
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minItems: 5
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clock-names:
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minItems: 5
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required:
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- avddio-usb-supply
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- hvdd-usb-supply
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- if:
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properties:
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compatible:
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contains:
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enum:
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- nvidia,tegra186-xudc
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- nvidia,tegra194-xudc
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then:
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properties:
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reg:
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maxItems: 2
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reg-names:
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maxItems: 2
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clocks:
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maxItems: 4
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clock-names:
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maxItems: 4
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/tegra210-car.h>
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#include <dt-bindings/gpio/tegra-gpio.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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usb@700d0000 {
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compatible = "nvidia,tegra210-xudc";
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reg = <0x700d0000 0x8000>,
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<0x700d8000 0x1000>,
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<0x700d9000 0x1000>;
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reg-names = "base", "fpci", "ipfs";
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interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>,
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<&tegra_car TEGRA210_CLK_XUSB_SS>,
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<&tegra_car TEGRA210_CLK_XUSB_SSP_SRC>,
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<&tegra_car TEGRA210_CLK_XUSB_FS_SRC>,
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<&tegra_car TEGRA210_CLK_XUSB_HS_SRC>;
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clock-names = "dev", "ss", "ss_src", "fs_src", "hs_src";
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power-domains = <&pd_xusbdev>, <&pd_xusbss>;
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power-domain-names = "dev", "ss";
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nvidia,xusb-padctl = <&padctl>;
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phys = <µ_b>;
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phy-names = "usb2-0";
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avddio-usb-supply = <&vdd_pex_1v05>;
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hvdd-usb-supply = <&vdd_3v3_sys>;
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};
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