diff options
| author |   Hou Zhiqiang <Zhiqiang.Hou@nxp.com> | 2019-07-05 17:56:36 +0800 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2019-07-08 12:28:44 +0100 |
| commit | 40af900c5f12ea3e4eda2688050a22dc1fee42d1 (patch) | |
| tree | a264ebafed0ddbc7ee687ee21b2d42068ca4a1f6 /drivers/pci | |
| parent | PCI: mobiveil: Fix the Class Code field (diff) | |
| download | linux-dev-40af900c5f12ea3e4eda2688050a22dc1fee42d1.tar.xz linux-dev-40af900c5f12ea3e4eda2688050a22dc1fee42d1.zip | |
PCI: mobiveil: Move the link up waiting out of mobiveil_host_init()
The host initializing sequence does not depend on the PCIe link being
up, so move the link up check right before the code scanning the root
bus for enumeration.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/pcie-mobiveil.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index 9e080612a97b..8f92f05c9211 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -561,15 +561,8 @@ static void mobiveil_pcie_enable_msi(struct mobiveil_pcie *pcie) static int mobiveil_host_init(struct mobiveil_pcie *pcie) { u32 value, pab_ctrl, type = 0; - int err; struct resource_entry *win; - err = mobiveil_bringup_link(pcie); - if (err) { - dev_info(&pcie->pdev->dev, "link bring-up failed\n"); - return err; - } - /* * program Bus Master Enable Bit in Command Register in PAB Config * Space @@ -635,7 +628,7 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) /* setup MSI hardware registers */ mobiveil_pcie_enable_msi(pcie); - return err; + return 0; } static void mobiveil_mask_intx_irq(struct irq_data *data) @@ -892,6 +885,12 @@ static int mobiveil_pcie_probe(struct platform_device *pdev) bridge->map_irq = of_irq_parse_and_map_pci; bridge->swizzle_irq = pci_common_swizzle; + ret = mobiveil_bringup_link(pcie); + if (ret) { + dev_info(dev, "link bring-up failed\n"); + goto error; + } + /* setup the kernel resources for the newly added PCIe root bus */ ret = pci_scan_root_bus_bridge(bridge); if (ret) |