ACK: [PATCH 1/1][SRU][OEM-5.6] xhci-pci: Allow host runtime PM as default for Intel Tiger Lake xHCI

[Sultan Alsawaf]

Acked-by: Sultan Alsawaf <sultan.alsawaf at canonical.com>

On Tue, May 12, 2020 at 03:33:53PM +0800, Koba Ko wrote:
> From: Mika Westerberg <mika.westerberg at linux.intel.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1878149
> 
> In the same way as Intel Ice Lake TCSS (Type-C Subsystem) the Tiger Lake
> TCSS xHCI needs to be runtime suspended whenever possible to allow the
> TCSS hardware block to enter D3cold and thus save energy.
> 
> Signed-off-by: Mika Westerberg <mika.westerberg at linux.intel.com>
> Signed-off-by: Mathias Nyman <mathias.nyman at linux.intel.com>
> Link: https://lore.kernel.org/r/20200312144517.1593-10-mathias.nyman@linux.intel.com
> Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> (cherry picked from commit 6a7c533d4a1854f54901a065d8c672e890400d8a)
> Signed-off-by: Koba Ko <koba.ko at canonical.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 1fddc41fa1f3..7f32793626e1 100644
> --- a/drivers/usb/host/xhci-pci.c
> +++ b/drivers/usb/host/xhci-pci.c
> @@ -50,6 +50,7 @@
>  #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI		0x15f0
>  #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_AMD_PROMONTORYA_4			0x43b9
>  #define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
> @@ -217,7 +218,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
>  	     pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_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_ICE_LAKE_XHCI ||
> +	     pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI))
>  		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
>  
>  	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
> -- 
> 2.25.1
> 
> 
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