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PCI: dwc: Expose dw_pcie_write_dbi2() to module

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Since no PCIe controller drivers call this, this change is not required
for now. But, Renesas R-Car Gen4 PCIe controller driver will call this
and if the controller driver is built as a kernel module, the following
build error happens:

  ERROR: modpost: "dw_pcie_write_dbi2" [drivers/pci/controller/dwc/pcie-rcar-gen4-host-drv.ko] undefined!

So, expose dw_pcie_write_dbi2() for it.

Link: https://lore.kernel.org/linux-pci/20230926122431.3974714-8-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
This commit is contained in:
Yoshihiro Shimoda 2023-09-26 21:24:22 +09:00 committed by Krzysztof Wilczyński
parent 2066b41a2e
commit 303e845351
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1 changed files with 1 additions and 0 deletions
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drivers/pci/controller/dwc/pcie-designware.c
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@ -365,6 +365,7 @@ void dw_pcie_write_dbi2(struct dw_pcie *pci, u32 reg, size_t size, u32 val)
if (ret)
dev_err(pci->dev, "write DBI address failed\n");
}
EXPORT_SYMBOL_GPL(dw_pcie_write_dbi2);
static inline void __iomem *dw_pcie_select_atu(struct dw_pcie *pci, u32 dir,
u32 index)