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PCI: rockchip: dw: Don't de-init driver in signal test mode

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Change-Id: I0e98b334cd488cc44ece9719ca8f6bab2a06ea99
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
This commit is contained in:
Shawn Lin
2020-12-24 17:39:01 +08:00
committed by Tao Huang
parent 4da47ef026
commit 1a3cf4f5c2
1 changed files with 7 additions and 1 deletions
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8
drivers/pci/controller/dwc/pcie-dw-rockchip.c
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@@ -130,6 +130,7 @@ struct rk_pcie {
struct dma_trx_obj *dma_obj;
bool in_suspend;
bool is_rk1808;
bool is_signal_test;
bool bifurcation;
struct regulator *vpcie3v3;
};
@@ -468,7 +469,7 @@ static int rk_pcie_establish_link(struct dw_pcie *pci)
dev_err(pci->dev, "PCIe Link Fail\n");
return -EINVAL;
return rk_pcie->is_signal_test == true ? 0 : -EINVAL;
}
static int rk_pcie_host_init_dma_trx(struct rk_pcie *rk_pcie)
@@ -1211,6 +1212,7 @@ static int rk_pcie_really_probe(void *p)
val = dw_pcie_readl_dbi(pci, PCIE_PORT_LINK_CONTROL);
val |= PORT_LINK_LPBK_ENABLE;
dw_pcie_writel_dbi(pci, PCIE_PORT_LINK_CONTROL, val);
rk_pcie->is_signal_test = true;
}
/* Force into compliance mode */
@@ -1218,6 +1220,7 @@ static int rk_pcie_really_probe(void *p)
val = dw_pcie_readl_dbi(pci, PCIE_CAP_LINK_CONTROL2_LINK_STATUS);
val |= BIT(4);
dw_pcie_writel_dbi(pci, PCIE_CAP_LINK_CONTROL2_LINK_STATUS, val);
rk_pcie->is_signal_test = true;
}
switch (rk_pcie->mode) {
@@ -1229,6 +1232,9 @@ static int rk_pcie_really_probe(void *p)
break;
}
if (rk_pcie->is_signal_test == true)
return 0;
if (ret)
goto deinit_clk;