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path: root/drivers/pci/controller/dwc/pcie-rcar-gen4.c
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Diffstat (limited to 'drivers/pci/controller/dwc/pcie-rcar-gen4.c')
-rw-r--r--drivers/pci/controller/dwc/pcie-rcar-gen4.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
index de4bdfaecab3..e155a905fb4f 100644
--- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c
+++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
@@ -416,6 +416,7 @@ static const struct dw_pcie_ep_ops pcie_ep_ops = {
static int rcar_gen4_add_dw_pcie_ep(struct rcar_gen4_pcie *rcar)
{
struct dw_pcie_ep *ep = &rcar->dw.ep;
+ struct device *dev = rcar->dw.dev;
int ret;
if (!IS_ENABLED(CONFIG_PCIE_RCAR_GEN4_EP))
@@ -424,8 +425,17 @@ static int rcar_gen4_add_dw_pcie_ep(struct rcar_gen4_pcie *rcar)
ep->ops = &pcie_ep_ops;
ret = dw_pcie_ep_init(ep);
- if (ret)
+ if (ret) {
rcar_gen4_pcie_ep_deinit(rcar);
+ return ret;
+ }
+
+ ret = dw_pcie_ep_init_registers(ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(ep);
+ rcar_gen4_pcie_ep_deinit(rcar);
+ }
return ret;
}