mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-01 06:39:05 +00:00
38fcbfbd42
Move the phys, phy-names, reset-gpios properties to the PCIe Root Port node from Host Bridge node, as agreed upon here [1]. Update the qcom,pcie-common.yaml to include the 'phys' property in the Root Port node. 'phy-names' property is not needed in Root Port since each Root Port supports only one PHY. Also, there is already 'reset-gpios' property defined for PERST# in pci-bus-common.yaml, so use that property instead of 'perst-gpios'. For backward compatibility, do not remove any existing properties in the bridge node, but mark them as 'deprecated' instead. [1] https://lore.kernel.org/linux-pci/20241211192014.GA3302752@bhelgaas/ Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com> [mani: commit message rewording] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20250702-perst-v5-1-920b3d1f6ee1@qti.qualcomm.com
136 lines
2.6 KiB
YAML
136 lines
2.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/pci/qcom,pcie-common.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Qualcomm PCI Express Root Complex Common Properties
|
|
|
|
maintainers:
|
|
- Bjorn Andersson <andersson@kernel.org>
|
|
- Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
|
|
|
|
properties:
|
|
reg:
|
|
minItems: 4
|
|
maxItems: 6
|
|
|
|
reg-names:
|
|
minItems: 4
|
|
maxItems: 6
|
|
|
|
interrupts:
|
|
minItems: 1
|
|
maxItems: 9
|
|
|
|
interrupt-names:
|
|
minItems: 1
|
|
maxItems: 9
|
|
|
|
iommu-map:
|
|
minItems: 1
|
|
maxItems: 16
|
|
|
|
clocks:
|
|
minItems: 3
|
|
maxItems: 13
|
|
|
|
clock-names:
|
|
minItems: 3
|
|
maxItems: 13
|
|
|
|
dma-coherent: true
|
|
|
|
interconnects:
|
|
maxItems: 2
|
|
|
|
interconnect-names:
|
|
items:
|
|
- const: pcie-mem
|
|
- const: cpu-pcie
|
|
|
|
phys:
|
|
maxItems: 1
|
|
deprecated: true
|
|
description:
|
|
This property is deprecated, instead of referencing this property from
|
|
the host bridge node, use the property from the PCIe root port node.
|
|
|
|
phy-names:
|
|
items:
|
|
- const: pciephy
|
|
deprecated: true
|
|
description:
|
|
Phandle to the register map node. This property is deprecated, and not
|
|
required to add in the root port also, as the root port has only one phy.
|
|
|
|
power-domains:
|
|
maxItems: 1
|
|
|
|
required-opps:
|
|
maxItems: 1
|
|
|
|
resets:
|
|
minItems: 1
|
|
maxItems: 12
|
|
|
|
reset-names:
|
|
minItems: 1
|
|
maxItems: 12
|
|
|
|
perst-gpios:
|
|
description: GPIO controlled connection to PERST# signal. This property is
|
|
deprecated, instead of referencing this property from the host bridge node,
|
|
use the reset-gpios property from the root port node.
|
|
maxItems: 1
|
|
deprecated: true
|
|
|
|
wake-gpios:
|
|
description: GPIO controlled connection to WAKE# signal. This property is
|
|
deprecated, instead of referencing this property from the host bridge node,
|
|
use the property from the PCIe root port node.
|
|
maxItems: 1
|
|
deprecated: true
|
|
|
|
vddpe-3v3-supply:
|
|
description: PCIe endpoint power supply
|
|
|
|
operating-points-v2: true
|
|
opp-table:
|
|
type: object
|
|
|
|
patternProperties:
|
|
"^pcie@":
|
|
type: object
|
|
$ref: /schemas/pci/pci-pci-bridge.yaml#
|
|
|
|
properties:
|
|
reg:
|
|
maxItems: 1
|
|
|
|
phys:
|
|
maxItems: 1
|
|
|
|
unevaluatedProperties: false
|
|
|
|
required:
|
|
- reg
|
|
- reg-names
|
|
- interrupt-map-mask
|
|
- interrupt-map
|
|
- clocks
|
|
- clock-names
|
|
|
|
anyOf:
|
|
- required:
|
|
- interrupts
|
|
- interrupt-names
|
|
- "#interrupt-cells"
|
|
- required:
|
|
- msi-map
|
|
|
|
allOf:
|
|
- $ref: /schemas/pci/pci-host-bridge.yaml#
|
|
|
|
additionalProperties: true
|