From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Mathias Nyman <mathias.nyman@linux.intel.com>
Subject: [PATCH 4/9] usb: xhci: Enable LPM for VIA LABS VL805
Date: Thu, 12 Mar 2020 16:45:12 +0200 [thread overview]
Message-ID: <20200312144517.1593-5-mathias.nyman@linux.intel.com> (raw)
In-Reply-To: <20200312144517.1593-1-mathias.nyman@linux.intel.com>
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
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 5e9b537df631..09786fbed996 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;
--
2.17.1
next prev parent reply other threads:[~2020-03-12 14:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-12 14:45 [PATCH 0/9] xhci features for usb-next Mathias Nyman
2020-03-12 14:45 ` [PATCH 1/9] xhci: bail out early if driver can't accress host in resume Mathias Nyman
2020-03-12 14:45 ` [PATCH 2/9] xhci: Add a separate debug message for split transaction errors Mathias Nyman
2020-03-12 14:45 ` [PATCH 3/9] xhci: Show host status when watchdog triggers and host is assumed dead Mathias Nyman
2020-03-12 14:45 ` Mathias Nyman [this message]
2020-03-12 14:45 ` [PATCH 5/9] usb: host: xhci-tegra: Tegra186/Tegra194 LPM Mathias Nyman
2020-03-12 14:45 ` [PATCH 6/9] xhci: Ensure link state is U3 after setting USB_SS_PORT_LS_U3 Mathias Nyman
2020-03-12 14:45 ` [PATCH 7/9] xhci: Wait until link state trainsits to U0 after setting USB_SS_PORT_LS_U0 Mathias Nyman
2020-03-12 14:45 ` [PATCH 8/9] xhci: Finetune host initiated USB3 rootport link suspend and resume Mathias Nyman
2020-03-12 14:45 ` [PATCH 9/9] xhci-pci: Allow host runtime PM as default for Intel Tiger Lake xHCI Mathias Nyman
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