From 72f71afb86bcdbf9dc2261214bf346fad4e2efb0 Mon Sep 17 00:00:00 2001 From: Minghuan Lian Date: Fri, 16 Oct 2015 15:19:15 +0800 Subject: [PATCH] PCI: layerscape: Remove ls_pcie_establish_link() ls_pcie_establish_link() does not do any real operation, except to wait for the linkup establishment. In fact, this is not necessary. Moreover, each PCIe controller not inserted device will increase the Linux startup time about 200ms. Remove ls_pcie_establish_link(). Signed-off-by: Minghuan Lian Signed-off-by: Bjorn Helgaas --- drivers/pci/host/pci-layerscape.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c index b2328ea13dcf..6dd44a071240 100644 --- a/drivers/pci/host/pci-layerscape.c +++ b/drivers/pci/host/pci-layerscape.c @@ -11,7 +11,6 @@ */ #include -#include #include #include #include @@ -62,27 +61,12 @@ static int ls_pcie_link_up(struct pcie_port *pp) return 1; } -static int ls_pcie_establish_link(struct pcie_port *pp) -{ - unsigned int retries; - - for (retries = 0; retries < 200; retries++) { - if (dw_pcie_link_up(pp)) - return 0; - usleep_range(100, 1000); - } - - dev_err(pp->dev, "phy link never came up\n"); - return -EINVAL; -} - 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