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| author |   Bjorn Helgaas <bhelgaas@google.com> | 2016-03-15 08:55:52 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-03-15 08:55:52 -0500 |
| commit | 562df5c8521e1371f3cbd0b7b868034da376d714 (patch) | |
| tree | 798a5b2f688a60307889c632a20e32aae65d51fa /drivers/pci/host/pci-exynos.c | |
| parent | Merge branches 'pci/host-altera', 'pci/host-imx6', 'pci/host-keystone', 'pci/host-rcar', 'pci/host-tegra', 'pci/host-thunder', 'pci/host-vmd', 'pci/host-xilinx' and 'pci/host-xilinx-nwl' into next (diff) | |
| parent | PCI: designware: Add driver for prototyping kits based on ARC SDP (diff) | |
| download | linux-dev-562df5c8521e1371f3cbd0b7b868034da376d714.tar.xz linux-dev-562df5c8521e1371f3cbd0b7b868034da376d714.zip | |
Merge branch 'pci/host-designware' into next
* pci/host-designware:
PCI: designware: Add driver for prototyping kits based on ARC SDP
PCI: designware: Add default link up check if sub-driver doesn't override
PCI: designware: Add generic dw_pcie_wait_for_link()
ARC: Add PCI support
Diffstat (limited to 'drivers/pci/host/pci-exynos.c')
| -rw-r--r-- | drivers/pci/host/pci-exynos.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c index d997d22d4231..219976103efc 100644 --- a/drivers/pci/host/pci-exynos.c +++ b/drivers/pci/host/pci-exynos.c @@ -318,7 +318,6 @@ static int exynos_pcie_establish_link(struct pcie_port *pp) { struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp); u32 val; - unsigned int retries; if (dw_pcie_link_up(pp)) { dev_err(pp->dev, "Link already up\n"); @@ -357,13 +356,8 @@ static int exynos_pcie_establish_link(struct pcie_port *pp) PCIE_APP_LTSSM_ENABLE); /* check if the link is up or not */ - for (retries = 0; retries < 10; retries++) { - if (dw_pcie_link_up(pp)) { - dev_info(pp->dev, "Link up\n"); - return 0; - } - mdelay(100); - } + if (!dw_pcie_wait_for_link(pp)) + return 0; while (exynos_phy_readl(exynos_pcie, PCIE_PHY_PLL_LOCKED) == 0) { val = exynos_blk_readl(exynos_pcie, PCIE_PHY_PLL_LOCKED); @@ -372,8 +366,7 @@ static int exynos_pcie_establish_link(struct pcie_port *pp) /* power off phy */ exynos_pcie_power_off_phy(pp); - dev_err(pp->dev, "PCIe Link Fail\n"); - return -EINVAL; + return -ETIMEDOUT; } static void exynos_pcie_clear_irq_pulse(struct pcie_port *pp) |