From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Mathias Nyman <mathias.nyman@intel.com>
Cc: linux-rpi-kernel@lists.infradead.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] usb: xhci: Enable LPM for VIA LABS VL805
Date: Mon, 20 Jan 2020 15:24:22 +0100 [thread overview]
Message-ID: <20200120142422.3907-1-nsaenzjulienne@suse.de> (raw)
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 <nsaenzjulienne@suse.de>
---
drivers/usb/host/xhci-pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 4917c5b033fa..c1976e98992b 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -241,6 +241,9 @@ 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;
--
2.24.1
next reply other threads:[~2020-01-20 14:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 14:24 Nicolas Saenz Julienne [this message]
2020-02-10 18:59 ` [PATCH] usb: xhci: Enable LPM for VIA LABS VL805 Greg Kroah-Hartman
2020-02-11 9:34 ` Mathias Nyman
2020-02-11 9:49 ` Stefan Wahren
2020-02-11 10:02 ` Nicolas Saenz Julienne
2020-02-11 12:13 ` Mathias Nyman
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