Messages in this thread Patch in this message | | | From | "Thang Q. Nguyen" <> | Subject | [PATCH v1 1/1] usb:xhci: update condition to select bus->sysdev from parent device | Date | Tue, 6 Jun 2017 14:11:19 +0700 |
| |
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 <tunguyen@apm.com> Signed-off-by: Thang Q. Nguyen <tqnguyen@apm.com> --- 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
| |