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>
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
for imx6sx-pcie.
power-domain-names:
+ minItems: 1
items:
- const: pcie
- const: pcie_phy
- {}
- const: pcie_phy
- const: pcie_inbound_axi
+ power-domains:
+ minItems: 2
+ power-domain-names:
+ minItems: 2
- if:
properties:
compatible:
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