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PCI: layerscape: Add ls_pcie_msi_host_init()
Layerscape PCIe has its own MSI implementation. Register ls_pcie_msi_host_init() to avoid using DesignWare's MSI. [bhelgaas: add comment] Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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@ -150,14 +150,37 @@ static void ls_pcie_host_init(struct pcie_port *pp)
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iowrite32(0, pcie->dbi + PCIE_DBI_RO_WR_EN);
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}
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static int ls_pcie_msi_host_init(struct pcie_port *pp,
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struct msi_controller *chip)
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{
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struct device_node *msi_node;
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struct device_node *np = pp->dev->of_node;
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/*
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* The MSI domain is set by the generic of_msi_configure(). This
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* .msi_host_init() function keeps us from doing the default MSI
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* domain setup in dw_pcie_host_init() and also enforces the
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* requirement that "msi-parent" exists.
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*/
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msi_node = of_parse_phandle(np, "msi-parent", 0);
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if (!msi_node) {
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dev_err(pp->dev, "failed to find msi-parent\n");
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return -EINVAL;
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}
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return 0;
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}
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static struct pcie_host_ops ls1021_pcie_host_ops = {
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.link_up = ls1021_pcie_link_up,
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.host_init = ls1021_pcie_host_init,
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.msi_host_init = ls_pcie_msi_host_init,
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};
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static struct pcie_host_ops ls_pcie_host_ops = {
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.link_up = ls_pcie_link_up,
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.host_init = ls_pcie_host_init,
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.msi_host_init = ls_pcie_msi_host_init,
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};
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static struct ls_pcie_drvdata ls1021_drvdata = {
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