linux-kernel - [PATCH v1 0/2] Skip waiting for link up during probe

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Message-ID: <20230224195749.818282-1-sdalvi@google.com>
Date:   Fri, 24 Feb 2023 13:57:45 -0600
From:   Sajid Dalvi <sdalvi@...gle.com>
To:     Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        "Krzysztof Wilczyński" <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Sajid Dalvi <sdalvi@...gle.com>, kernel-team@...roid.com,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 0/2] Skip waiting for link up during probe

When the Root Complex is probed, the default behavior is to spin in a loop
waiting for the link to come up. In some systems the link is not brought up
during probe, but later in the context of an end-point turning on. This
patch adds a device tree property to the Synopsis designware root
controller to skip this loop.

Sajid Dalvi (2):
  dt-bindings: PCI: dwc: Add snps,skip-wait-link-up
  PCI: dwc: Skip waiting for link up on probe

 Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml | 8 ++++++++
 drivers/pci/controller/dwc/pcie-designware-host.c       | 5 +++--
 2 files changed, 11 insertions(+), 2 deletions(-)

-- 
2.39.2.637.g21b0678d19-goog