[PATCH v7 1/3] dt-bindings: imx6q-pcie: Add optional intr/aer/pme interrupts for i.MX95

[Rob Herring (Arm)]

On Thu, 18 Jun 2026 17:20:58 +0800, hongxing.zhu at oss.nxp.com wrote:
> From: Richard Zhu <hongxing.zhu at nxp.com>
> 
> The i.MX95 PCIe controller introduces three additional dedicated hardware
> interrupt lines for specific events:
> - intr: general controller events
> - aer: Advanced Error Reporting events
> - pme: Power Management Events
> 
> These interrupts are optional on i.MX95. PCIe basic functionality
> (enumeration, configuration, and data transfer) works correctly without
> them, as the controller can operate using only the existing msi interrupt.
> 
> Earlier i.MX PCIe variants (imx6q, imx6sx, imx6qp, imx7d, imx8mm, imx8mp,
> imx8mq, imx8q) do not have these three dedicated interrupt lines.
> 
> Update the binding to allow up to 5 interrupts for i.MX95, while
> restricting earlier variants to a maximum of 2 interrupts using
> conditional constraints (if/then schema). This ensures the schema
> accurately reflects the hardware capabilities of each SoC variant.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu at nxp.com>
> Reviewed-by: Frank Li <Frank.Li at nxp.com>
> ---
>  .../bindings/pci/fsl,imx6q-pcie.yaml          | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh at kernel.org>