diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-12-18 14:04:15 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-12-18 14:04:15 -0700 |
| commit | 1c898ba1ca949d695e566a556a9f7326f37265e5 (patch) | |
| tree | c96d66c35f67d5d258ebb878b91163abf7c38613 /drivers/pci/host | |
| parent | 7160266a2679ad35222b55330d425f5e113ab165 (diff) | |
| parent | fb178d8b2fab3f2a9f203c13ffe80cfd6e01bdf1 (diff) | |
| download | linux-1c898ba1ca949d695e566a556a9f7326f37265e5.tar.bz2 | |
Merge branch 'pci/host-rcar' into next
* pci/host-rcar:
PCI: rcar: Add runtime PM support
PCI: rcar: Fix rcar_pci_probe() return value check
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/pci-rcar-gen2.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c index cbaa5c4397e3..ceec147baec3 100644 --- a/drivers/pci/host/pci-rcar-gen2.c +++ b/drivers/pci/host/pci-rcar-gen2.c @@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> /* AHB-PCI Bridge PCI communication registers */ @@ -77,6 +78,7 @@ #define RCAR_PCI_NR_CONTROLLERS 3 struct rcar_pci_priv { + struct device *dev; void __iomem *reg; struct resource io_res; struct resource mem_res; @@ -169,8 +171,11 @@ static int __init rcar_pci_setup(int nr, struct pci_sys_data *sys) void __iomem *reg = priv->reg; u32 val; + pm_runtime_enable(priv->dev); + pm_runtime_get_sync(priv->dev); + val = ioread32(reg + RCAR_PCI_UNIT_REV_REG); - pr_info("PCI: bus%u revision %x\n", sys->busnr, val); + dev_info(priv->dev, "PCI: bus%u revision %x\n", sys->busnr, val); /* Disable Direct Power Down State and assert reset */ val = ioread32(reg + RCAR_USBCTR_REG) & ~RCAR_USBCTR_DIRPD; @@ -276,8 +281,8 @@ static int __init rcar_pci_probe(struct platform_device *pdev) cfg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); reg = devm_ioremap_resource(&pdev->dev, cfg_res); - if (!reg) - return -ENODEV; + if (IS_ERR(reg)) + return PTR_ERR(reg); mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (!mem_res || !mem_res->start) @@ -301,6 +306,7 @@ static int __init rcar_pci_probe(struct platform_device *pdev) priv->irq = platform_get_irq(pdev, 0); priv->reg = reg; + priv->dev = &pdev->dev; return rcar_pci_add_controller(priv); } |