From: Raymond Tan raymond.tan@intel.com
commit a609ce2a13360d639b384b6ca783b38c1247f2db upstream.
Similar to some other IA platforms, Elkhart Lake too depends on the PMU register write to request transition of Dx power state.
Thus, we add the PCI_DEVICE_ID_INTEL_EHLLP to the list of devices that shall execute the ACPI _DSM method during D0/D3 sequence.
[heikki.krogerus@linux.intel.com: included Fixes tag]
Fixes: dbb0569de852 ("usb: dwc3: pci: Add Support for Intel Elkhart Lake Devices") Cc: stable@vger.kernel.org Signed-off-by: Raymond Tan raymond.tan@intel.com Signed-off-by: Heikki Krogerus heikki.krogerus@linux.intel.com Signed-off-by: Felipe Balbi balbi@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/dwc3/dwc3-pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -147,7 +147,8 @@ static int dwc3_pci_quirks(struct dwc3_p
if (pdev->vendor == PCI_VENDOR_ID_INTEL) { if (pdev->device == PCI_DEVICE_ID_INTEL_BXT || - pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) { + pdev->device == PCI_DEVICE_ID_INTEL_BXT_M || + pdev->device == PCI_DEVICE_ID_INTEL_EHLLP) { guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid); dwc->has_dsm_for_pm = true; }