提交 9a9d4e38 编写于 作者: M Mathias Nyman 提交者: Zheng Zengkai

xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI

stable inclusion
from stable-v5.10.121
commit c5b9b7fb123dbf560a4a19e26fab3d507825ee75
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5L6CQ

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c5b9b7fb123dbf560a4a19e26fab3d507825ee75

--------------------------------

commit 74f55a62 upstream.

Alder Lake N TCSS xHCI needs to be runtime suspended whenever possible
to allow the TCSS hardware block to enter D3 and thus save energy

Cc: stable@kernel.org
Suggested-by: NGopal Vamshi Krishna <vamshi.krishna.gopal@intel.com>
Signed-off-by: NMathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220511220450.85367-10-mathias.nyman@linux.intel.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
上级 0cd3a24b
......@@ -59,6 +59,7 @@
#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13
#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138
#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI 0x461e
#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI 0x464e
#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed
#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
......@@ -263,6 +264,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI))
xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
......
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