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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-09 09:11:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-09 09:11:09 +0200
commit4fcae770f3027abefd952c5d511ac6299828865a (patch)
tree6cf64399a20f989358831a8f9b2ac2bb19628f54 /drivers/usb/host/xhci-plat.c
parent2847d242a1e48ca734cee742efa0f70abf545d1e (diff)
parent8a5776a5f49812d29fe4b2d0a2d71675c3facf3f (diff)
downloadlinux-4fcae770f3027abefd952c5d511ac6299828865a.tar.bz2
Merge 4.14-rc4 into usb-next
This merges in the USB fixes that we need here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-plat.c')
-rw-r--r--drivers/usb/host/xhci-plat.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 6804cd4610c2..1969e56a8d8d 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -179,14 +179,18 @@ static int xhci_plat_probe(struct platform_device *pdev)
* 2. xhci_plat is child of a device from firmware (dwc3-plat)
* 3. xhci_plat is grandchild of a pci device (dwc3-pci)
*/
- sysdev = &pdev->dev;
- if (sysdev->parent && !sysdev->of_node && sysdev->parent->of_node)
- sysdev = sysdev->parent;
+ for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
+ if (is_of_node(sysdev->fwnode) ||
+ is_acpi_device_node(sysdev->fwnode))
+ break;
#ifdef CONFIG_PCI
- else if (sysdev->parent && sysdev->parent->parent &&
- sysdev->parent->parent->bus == &pci_bus_type)
- sysdev = sysdev->parent->parent;
+ else if (sysdev->bus == &pci_bus_type)
+ break;
#endif
+ }
+
+ if (!sysdev)
+ sysdev = &pdev->dev;
/* Try to set 64-bit DMA first */
if (WARN_ON(!sysdev->dma_mask))