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([110.93.227.81]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47f25b23b7esm30983183f8f.18.2026.07.13.07.52.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2026 07:52:03 -0700 (PDT) From: Ali Tariq To: Kevin Xie Cc: Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Ali Tariq Subject: [PATCH] PCI: starfive: Fix Runtime PM handling and teardown ordering Date: Mon, 13 Jul 2026 19:50:14 +0500 Message-Id: <20260713145014.740898-1-alitariq45892@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The starfive_pcie_remove() path incorrectly disabled runtime PM before executing plda_pcie_host_deinit(), which can cause unmanaged hardware register access while power domains or clocks are disabled. Fix this by restructuring starfive_pcie_remove() to deinitialize the host hardware first while runtime PM is active, followed by a synchronous pm_runtime_put_sync() and pm_runtime_disable(). Signed-off-by: Ali Tariq --- drivers/pci/controller/plda/pcie-starfive.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/plda/pcie-starfive.c b/drivers/pci/cont= roller/plda/pcie-starfive.c index e9a472985b8a..ba8ef7842e35 100644 --- a/drivers/pci/controller/plda/pcie-starfive.c +++ b/drivers/pci/controller/plda/pcie-starfive.c @@ -440,9 +440,9 @@ static void starfive_pcie_remove(struct platform_device= *pdev) { struct starfive_jh7110_pcie *pcie =3D platform_get_drvdata(pdev); =20 - pm_runtime_put(&pdev->dev); - pm_runtime_disable(&pdev->dev); plda_pcie_host_deinit(&pcie->plda); + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); platform_set_drvdata(pdev, NULL); } =20 --=20 2.34.1