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PCI: layerscape: Factor out ls_pcie_establish_link()
All other DesignWare-based drivers have a *_establish_link() function. This functionality is trivial for Layerscape, but factor out a ls_pcie_establish_link() for consistency with the other drivers. No functional change. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Pratyush Anand <pratyush.anand@gmail.com>
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1200edcbdd
commit
1d3f9bac71
1 changed files with 13 additions and 6 deletions
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@ -62,23 +62,30 @@ static int ls_pcie_link_up(struct pcie_port *pp)
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return 1;
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}
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static void ls_pcie_host_init(struct pcie_port *pp)
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static int ls_pcie_establish_link(struct pcie_port *pp)
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{
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struct ls_pcie *pcie = to_ls_pcie(pp);
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int count = 0;
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u32 val;
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dw_pcie_setup_rc(pp);
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while (!dw_pcie_link_up(pp)) {
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usleep_range(100, 1000);
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count++;
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if (count >= 200) {
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dev_err(pp->dev, "phy link never came up\n");
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return;
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return -EINVAL;
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}
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}
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return 0;
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}
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static void ls_pcie_host_init(struct pcie_port *pp)
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{
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struct ls_pcie *pcie = to_ls_pcie(pp);
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u32 val;
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dw_pcie_setup_rc(pp);
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ls_pcie_establish_link(pp);
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/*
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* LS1021A Workaround for internal TKT228622
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* to fix the INTx hang issue
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