[PATCH v7 3/7] dt-bindings: PCI: qcom,pcie-x1e80100: Add 'global' interrupt

[Krzysztof Kozlowski]

On Wed, Oct 16, 2024 at 08:04:08PM -0700, Qiang Yu wrote:
> Qcom PCIe RC controllers are capable of generating 'global' SPI interrupt
> to the host CPU. This interrupt can be used by the device driver to handle
> PCIe link specific events such as Link up and Link down, which give the
> driver a chance to start bus enumeration on its own when link is up and
> initiate link training if link goes to a bad state. The PCIe driver can
> still work without this interrupt but it will provide a nice user
> experience when device gets plugged and removed.
> 
> Hence, document it in the binding along with the existing MSI interrupts.
> Global interrupt is parsed as optional in driver, so adding it in bindings
> will not break the ABI.
> 
> Signed-off-by: Qiang Yu <quic_qianyu at quicinc.com>
> ---
>  .../devicetree/bindings/pci/qcom,pcie-x1e80100.yaml      | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>

Best regards,
Krzysztof