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authorMarek Vasut2022-12-11 03:48:58 +0100
committerRob Herring2022-12-16 11:41:48 -0600
commit8b8161edf14acab716c01d03bafc8a3e8113a43a (patch)
treed897ef859f6f8a42e5944a6761120a2ba29dd4da /Documentation
parent22c9f19002c7536b30bc15b6fb6276d62be2f758 (diff)
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')
-rw-r--r--Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml32
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