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    Subject[PATCH 5.15 002/917] usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform
    Date
    From: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>

    commit 660a92a59b9e831a0407e41ff62875656d30006e upstream.

    AMD's Yellow Carp platform supports runtime power management for
    XHCI Controllers, so enable the same by default for all XHCI Controllers.

    [ regrouped and aligned the PCI_DEVICE_ID definitions -Mathias]

    Cc: stable <stable@vger.kernel.org>
    Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
    Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
    Reviewed-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
    Signed-off-by: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
    Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
    Link: https://lore.kernel.org/r/20211014121200.75433-2-mathias.nyman@linux.intel.com
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/usb/host/xhci-pci.c | 16 ++++++++++++++++
    1 file changed, 16 insertions(+)

    --- a/drivers/usb/host/xhci-pci.c
    +++ b/drivers/usb/host/xhci-pci.c
    @@ -65,6 +65,13 @@
    #define PCI_DEVICE_ID_AMD_PROMONTORYA_3 0x43ba
    #define PCI_DEVICE_ID_AMD_PROMONTORYA_2 0x43bb
    #define PCI_DEVICE_ID_AMD_PROMONTORYA_1 0x43bc
    +#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1 0x161a
    +#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2 0x161b
    +#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 0x161d
    +#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 0x161e
    +#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 0x15d6
    +#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6 0x15d7
    +
    #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI 0x1042
    #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI 0x1142
    #define PCI_DEVICE_ID_ASMEDIA_1142_XHCI 0x1242
    @@ -317,6 +324,15 @@ static void xhci_pci_quirks(struct devic
    pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
    xhci->quirks |= XHCI_NO_SOFT_RETRY;

    + if (pdev->vendor == PCI_VENDOR_ID_AMD &&
    + (pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1 ||
    + pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2 ||
    + pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 ||
    + pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 ||
    + pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 ||
    + pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6))
    + xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
    +
    if (xhci->quirks & XHCI_RESET_ON_RESUME)
    xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
    "QUIRK: Resetting on resume");

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