PCI: qcom: Use DWC helpers for modifying the read-only DBI registers

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[ Upstream commit 60f0072d7f ]

DWC core already exposes dw_pcie_dbi_ro_wr_{en/dis} helper APIs for
enabling and disabling the write access to read only DBI registers. So
let's use them instead of doing it manually.

Also, the existing code doesn't disable the write access when it's done.
This is also fixed now.

Link: https://lore.kernel.org/r/20230619150408.8468-3-manivannan.sadhasivam@linaro.org
Fixes: 5d76117f07 ("PCI: qcom: Add support for IPQ8074 PCIe controller")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Manivannan Sadhasivam 2023-06-19 20:34:01 +05:30 • committed by Greg Kroah-Hartman

parent 88b6ad86a2

commit d7649e4d23

1 changed files with 3 additions and 5 deletions

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drivers/pci/controller/dwc/pcie-qcom.c

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