For commit 4c39d4b949d3 ("usb: xhci: use bus->sysdev for DMA
configuration"), sysdev points to devices known to the system firmware
or hardware for DMA parameters.
However, the parent of the system firmware/hardware device checking
logic does not work in ACPI boot mode. This patch updates the formulation
to check this case in both DT and ACPI.Signed-off-by: Tung Nguyen <[email protected]> Signed-off-by: Thang Q. Nguyen <[email protected]> --- drivers/usb/host/xhci-plat.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index c04144b..e3e342a 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -187,7 +187,9 @@ static int xhci_plat_probe(struct platform_device *pdev) * 3. xhci_plat is grandchild of a pci device (dwc3-pci) */ sysdev = &pdev->dev; - if (sysdev->parent && !sysdev->of_node && sysdev->parent->of_node) + if (sysdev->parent && (sysdev->fwnode->type == FWNODE_PDATA) && + (is_of_node(sysdev->parent->fwnode) || + is_acpi_device_node(sysdev->parent->fwnode))) sysdev = sysdev->parent; #ifdef CONFIG_PCI else if (sysdev->parent && sysdev->parent->parent && -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
