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| author | Marek Vasut <marex@denx.de> | 2022-12-11 03:48:58 +0100 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2022-12-16 11:41:48 -0600 |
| commit | 8b8161edf14acab716c01d03bafc8a3e8113a43a (patch) | |
| tree | d897ef859f6f8a42e5944a6761120a2ba29dd4da /Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | |
| parent | 22c9f19002c7536b30bc15b6fb6276d62be2f758 (diff) | |
| download | lwn-8b8161edf14acab716c01d03bafc8a3e8113a43a.tar.gz lwn-8b8161edf14acab716c01d03bafc8a3e8113a43a.zip | |
dt-bindings: imx6q-pcie: Handle various PD configurations
The i.MX SoCs have various power domain configurations routed into
the PCIe IP. MX6SX is the only one which contains 2 domains and also
uses power-domain-names. MX6QDL do not use any domains. All the rest
uses one domain and does not use power-domain-names anymore.
Document all those configurations in the DT binding document.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20221211024859.672076-2-marex@denx.de
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml index 5d74d914a830..f2e9404d33f8 100644 --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml @@ -69,6 +69,7 @@ properties: required properties for imx7d-pcie and imx8mq-pcie. power-domains: + minItems: 1 items: - description: The phandle pointing to the DISPLAY domain for imx6sx-pcie, to PCIE_PHY power domain for imx7d-pcie and @@ -77,6 +78,7 @@ properties: for imx6sx-pcie. power-domain-names: + minItems: 1 items: - const: pcie - const: pcie_phy @@ -187,6 +189,10 @@ allOf: - {} - const: pcie_phy - const: pcie_inbound_axi + power-domains: + minItems: 2 + power-domain-names: + minItems: 2 - if: properties: compatible: @@ -243,6 +249,32 @@ allOf: maxItems: 3 contains: const: pcie_aux + - if: + properties: + compatible: + contains: + enum: + - fsl,imx6q-pcie + - fsl,imx6qp-pcie + then: + properties: + power-domains: false + power-domain-names: false + + - if: + not: + properties: + compatible: + contains: + enum: + - fsl,imx6sx-pcie + - fsl,imx6q-pcie + - fsl,imx6qp-pcie + then: + properties: + power-domains: + maxItems: 1 + power-domain-names: false unevaluatedProperties: false |