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
V3: - Reinstate reset: maxItems:3 and add minItems:2
- Move reset-names back to main section
- The validation no longer works and introduces errors like these:
arch/arm64/boot/dts/freescale/imx8mm-verdin-wifi-dahlia.dtb: pcie@33800000: reset-names:0: 'pciephy' was expected
---
.../bindings/pci/fsl,imx6q-pcie.yaml | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
index 5d731aca34b4d..44a1404cbc2c0 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
@@ -80,11 +80,13 @@ properties:
- const: pcie_phy
resets:
+ minItems: 2
maxItems: 3
description: Phandles to PCIe-related reset lines exposed by SRC
IP block. Additional required by imx7d-pcie and imx8mq-pcie.
reset-names:
+ minItems: 2
items:
- const: pciephy
- const: apps
@@ -251,6 +253,29 @@ 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:
+ reset-names:
+ maxItems: 3
+ else:
+ properties:
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: apps
+ - const: turnoff
+
examples:
- |
#include <dt-bindings/clock/imx6qdl-clock.h>
--
2.35.1
