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dt-bindings: mfd: Convert OMAP USB TLL to DT schema

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Convert the OMAP HS USB Host TLL bindings to DT schema.

During the conversion, ti,hwmods has been made optional to resolve
dtbs_check warnings. Modern OMAP platforms do not require this
property, but it is still required for older platforms.

Signed-off-by: Eduard Bostina <egbostina@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260708123328.1768794-1-egbostina@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Eduard Bostina 2026-07-08 12:33:28 +00:00 committed by Lee Jones
parent 2970c2db8a
commit a764e2a617
2 changed files with 53 additions and 27 deletions
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27
Documentation/devicetree/bindings/mfd/omap-usb-tll.txt
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OMAP HS USB Host TLL (Transceiver-Less Interface)
Required properties:
- compatible : should be "ti,usbhs-tll"
- reg : should contain one register range i.e. start and length
- interrupts : should contain the TLL module's interrupt
- ti,hwmod : must contain "usb_tll_hs"
Optional properties:
- clocks: a list of phandles and clock-specifier pairs, one for each entry in
clock-names.
- clock-names: should include:
* "usb_tll_hs_usb_ch0_clk" - USB TLL channel 0 clock
* "usb_tll_hs_usb_ch1_clk" - USB TLL channel 1 clock
* "usb_tll_hs_usb_ch2_clk" - USB TLL channel 2 clock
Example:
usbhstll: usbhstll@4a062000 {
compatible = "ti,usbhs-tll";
reg = <0x4a062000 0x1000>;
interrupts = <78>;
ti,hwmods = "usb_tll_hs";
};

53
Documentation/devicetree/bindings/mfd/ti,usbhs-tll.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/ti,usbhs-tll.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: OMAP HS USB Host TLL (Transceiver-Less Interface)
maintainers:
- Eduard Bostina <egbostina@gmail.com>
properties:
compatible:
const: ti,usbhs-tll
reg:
maxItems: 1
interrupts:
maxItems: 1
ti,hwmods:
description: Name of the hwmod associated with the USB TLL.
$ref: /schemas/types.yaml#/definitions/string
const: usb_tll_hs
clocks:
minItems: 1
maxItems: 3
description: A list of phandles and clock-specifier pairs.
clock-names:
minItems: 1
items:
- const: usb_tll_hs_usb_ch0_clk
- const: usb_tll_hs_usb_ch1_clk
- const: usb_tll_hs_usb_ch2_clk
required:
- compatible
- reg
- interrupts
additionalProperties: false
examples:
- |
usb-tll@4a062000 {
compatible = "ti,usbhs-tll";
reg = <0x4a062000 0x1000>;
interrupts = <78>;
ti,hwmods = "usb_tll_hs";
};