Commit 5c2ecfce authored by David Heidelberg's avatar David Heidelberg Committed by Vinod Koul

dt-bindings: phy: Tegra194 P2U convert to YAML

Convert Tegra194 P2U binding to the YAML format.
Signed-off-by: default avatarDavid Heidelberg <david@ixit.cz>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211031113236.29712-1-david@ixit.czSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent e45dbd3a
NVIDIA Tegra194 P2U binding
Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High
Speed) each interfacing with 12 and 8 P2U instances respectively.
A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE
interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe
lane.
Required properties:
- compatible: For Tegra19x, must contain "nvidia,tegra194-p2u".
- reg: Should be the physical address space and length of respective each P2U
instance.
- reg-names: Must include the entry "ctl".
Required properties for PHY port node:
- #phy-cells: Defined by generic PHY bindings. Must be 0.
Refer to phy/phy-bindings.txt for the generic PHY binding properties.
Example:
p2u_hsio_0: phy@3e10000 {
compatible = "nvidia,tegra194-p2u";
reg = <0x03e10000 0x10000>;
reg-names = "ctl";
#phy-cells = <0>;
};
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/phy/phy-tegra194-p2u.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: NVIDIA Tegra194 P2U binding
maintainers:
- Thierry Reding <treding@nvidia.com>
description: >
Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High
Speed) each interfacing with 12 and 8 P2U instances respectively.
A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE
interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe
lane.
properties:
compatible:
const: nvidia,tegra194-p2u
reg:
maxItems: 1
description: Should be the physical address space and length of respective each P2U instance.
reg-names:
items:
- const: ctl
'#phy-cells':
const: 0
additionalProperties: false
examples:
- |
p2u_hsio_0: phy@3e10000 {
compatible = "nvidia,tegra194-p2u";
reg = <0x03e10000 0x10000>;
reg-names = "ctl";
#phy-cells = <0>;
};
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