PCI: starfive: Fix Runtime PM handling and teardown ordering

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The starfive_pcie_remove() path incorrectly disabled runtime PM
before executing plda_pcie_host_deinit(), which can cause unmanaged
hardware register access in plda_pcie_host_deinit() while power domains or
clocks are disabled.

Fix this by restructuring starfive_pcie_remove() to deinitialize the host
controller first while runtime PM is active, followed by a synchronous
pm_runtime_put_sync() and pm_runtime_disable().

This bug was found in automated AI review by sashiko-bot.

Fixes: 39b91eb40c ("PCI: starfive: Add JH7110 PCIe controller")
Closes: https://lore.kernel.org/linux-pci/20260712180440.423421F000E9@smtp.kernel.org/
Signed-off-by: Ali Tariq <alitariq45892@gmail.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Link: https://patch.msgid.link/20260718133825.445041-1-alitariq45892@gmail.com

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Ali Tariq 2026-07-18 18:38:25 +05:00 • committed by Manivannan Sadhasivam

parent 22877a061f

commit fb9f797347

1 changed files with 2 additions and 2 deletions

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drivers/pci/controller/plda/pcie-starfive.c

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