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dt-bindings: usb: Drop duplicate nvidia,tegra20-ehci.txt

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The nvidia,tegra20-ehci binding is already documented in
ci-hdrc-usb2.yaml, so drop the old text binding.

Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250807214351.4172243-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rob Herring (Arm) 2025-08-07 16:43:50 -05:00 committed by Greg Kroah-Hartman
parent 186e8f2bdb
commit 738812440b
1 changed files with 0 additions and 23 deletions
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23
Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt
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Tegra SOC USB controllers
The device node for a USB controller that is part of a Tegra
SOC is as described in the document "Open Firmware Recommended
Practice : Universal Serial Bus" with the following modifications
and additions :
Required properties :
- compatible : For Tegra20, must contain "nvidia,tegra20-ehci".
For Tegra30, must contain "nvidia,tegra30-ehci". Otherwise, must contain
"nvidia,<chip>-ehci" plus at least one of the above, where <chip> is
tegra114, tegra124, tegra132, or tegra210.
- nvidia,phy : phandle of the PHY that the controller is connected to.
- clocks : Must contain one entry, for the module clock.
See ../clocks/clock-bindings.txt for details.
- resets : Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names : Must include the following entries:
- usb
Optional properties:
- nvidia,needs-double-reset : boolean is to be set for some of the Tegra20
USB ports, which need reset twice due to hardware issues.