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Commit 1d3f9bac authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

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: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarPratyush Anand <pratyush.anand@gmail.com>
parent 1200edcb

drivers/pci/host/pci-layerscape.c

+13 −6
Original line number Diff line number Diff line
@@ -62,23 +62,30 @@ static int ls_pcie_link_up(struct pcie_port *pp) 
	return 1;

}



static void ls_pcie_host_init(struct pcie_port *pp)

static int ls_pcie_establish_link(struct pcie_port *pp)

{

	struct ls_pcie *pcie = to_ls_pcie(pp);

	int count = 0;

	u32 val;



	dw_pcie_setup_rc(pp);



	while (!dw_pcie_link_up(pp)) {

		usleep_range(100, 1000);

		count++;

		if (count >= 200) {

			dev_err(pp->dev, "phy link never came up\n");

			return;

			return -EINVAL;

		}

	}



	return 0;

}



static void ls_pcie_host_init(struct pcie_port *pp)

{

	struct ls_pcie *pcie = to_ls_pcie(pp);

	u32 val;



	dw_pcie_setup_rc(pp);

	ls_pcie_establish_link(pp);



	/*

	 * LS1021A Workaround for internal TKT228622

	 * to fix the INTx hang issue