The i.MX6 and i.MX7D does not use block controller to toggle PCIe
reset, hence the PCIe DT description contains three reset entries
on these older SoCs. Add this exception into the binding document.
Signed-off-by: Marek Vasut <marex@xxxxxxx>
---
Cc: Fabio Estevam <festevam@xxxxxxxxx>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Richard Zhu <hongxing.zhu@xxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: NXP Linux Team <linux-imx@xxxxxxx>
To: devicetree@xxxxxxxxxxxxxxx
---
V2: - Add mx8mq to 3-reset PCIe core variant
- Handle the resets in allOf section
---
.../bindings/pci/fsl,imx6q-pcie.yaml | 35 +++++++++++++++----
1 file changed, 28 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
index 2087dab95d679..f461ee2cd5c84 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
@@ -69,16 +69,9 @@ properties:
required properties for imx7d-pcie and imx8mq-pcie.
resets:
- maxItems: 3
description: Phandles to PCIe-related reset lines exposed by SRC
IP block. Additional required by imx7d-pcie and imx8mq-pcie.
- reset-names:
- items:
- - const: pciephy
- - const: apps
- - const: turnoff
-
fsl,tx-deemph-gen1:
description: Gen1 De-emphasis value (optional required).
$ref: /schemas/types.yaml#/definitions/uint32
@@ -270,6 +263,34 @@ allOf:
maxItems: 1
power-domain-names: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx6q-pcie
+ - fsl,imx6sx-pcie
+ - fsl,imx6qp-pcie
+ - fsl,imx7d-pcie
+ - fsl,imx8mq-pcie
+ then:
+ properties:
+ resets:
+ maxItems: 3
+ reset-names:
+ items:
+ - const: pciephy
+ - const: apps
+ - const: turnoff
+ else:
+ properties:
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: apps
+ - const: turnoff
+
examples:
- |
#include <dt-bindings/clock/imx6qdl-clock.h>
--
2.35.1
