From 2170a98d56cc86cef71134ac213aede2fdf64021 Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Thu, 12 Mar 2020 16:45:12 +0200 Subject: usb: xhci: Enable LPM for VIA LABS VL805 This PCIe controller chip is used on the Raspberry Pi 4 and multiple adapter cards. There is no publicly available documentation for the chip, yet both the downstream RPi4 kernel and the controller cards support/advertise LPM support. Signed-off-by: Nicolas Saenz Julienne Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20200312144517.1593-5-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-pci.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/usb') diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 0715a2e75413..b98a1b54db56 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -243,6 +243,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == 0x3432) xhci->quirks |= XHCI_BROKEN_STREAMS; + if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) + xhci->quirks |= XHCI_LPM_SUPPORT; + if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == 0x1042) xhci->quirks |= XHCI_BROKEN_STREAMS; -- cgit v1.2.3