linux-kernel - Re: [PATCH 1/3] dt-bindings: PCI: qcom,pcie-sm8550: document 'global' interrupt

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Message-ID: <nd4codxqdjzoqf6m2ivaofmuzrial7daby2pv62apjsmp6amkp@jxg6fcfh27vu>
Date: Wed, 27 Nov 2024 09:42:53 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>, 
	Lorenzo Pieralisi <lpieralisi@...nel.org>, Krzysztof Wilczyński <kw@...ux.com>, 
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: PCI: qcom,pcie-sm8550: document
 'global' interrupt

On Tue, Nov 26, 2024 at 11:22:49AM +0100, Neil Armstrong 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.
> 
> Document the interrupt as optional for SM8550 and SM8650 platforms.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie-sm8550.yaml | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof