From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Mathias Nyman <mathias.nyman@linux.intel.com>
Subject: [PATCH 4/5] xhci-pci: Allow host runtime PM as default for Intel Maple Ridge xHCI
Date: Tue, 8 Dec 2020 11:29:11 +0200 [thread overview]
Message-ID: <20201208092912.1773650-5-mathias.nyman@linux.intel.com> (raw)
In-Reply-To: <20201208092912.1773650-1-mathias.nyman@linux.intel.com>
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Intel Maple Ridge is successor of Titan Ridge Thunderbolt controller. As
Titan Ridge this one also includes xHCI host controller. In order to
safe energy we should put it to low power state by default when idle.
For this reason allow host runtime PM for Maple Ridge.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
drivers/usb/host/xhci-pci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 5f94d7edeb37..84da8406d5b4 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -56,6 +56,7 @@
#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13
#define PCI_DEVICE_ID_INTEL_CML_XHCI 0xa3af
#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13
+#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138
#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
#define PCI_DEVICE_ID_AMD_PROMONTORYA_3 0x43ba
@@ -240,7 +241,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI))
+ pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI))
xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
--
2.25.1
next prev parent reply other threads:[~2020-12-08 9:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-08 9:29 [PATCH 0/5] xhci features for usb-next Mathias Nyman
2020-12-08 9:29 ` [PATCH 1/5] usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK Mathias Nyman
2020-12-08 9:29 ` [PATCH 2/5] usb: xhci: Use temporary buffer to consolidate SG Mathias Nyman
2020-12-08 9:29 ` [PATCH 3/5] xhci-pci: Allow host runtime PM as default for Intel Alpine Ridge LP Mathias Nyman
2020-12-08 9:29 ` Mathias Nyman [this message]
2020-12-08 9:39 ` [PATCH 4/5] xhci-pci: Allow host runtime PM as default for Intel Maple Ridge xHCI Greg KH
2020-12-08 11:21 ` Mathias Nyman
2020-12-08 9:29 ` [PATCH 5/5] xhci: Give USB2 ports time to enter U3 in bus suspend Mathias Nyman
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