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[2/2] usb: dwc3: pci: Allow Elkhart Lake to utilize DSM method for PM functionality

Message ID 1596478284-69661-3-git-send-email-raymond.tan@intel.com
State New
Headers show
Series usb: dwc3: pci: Allow Elkhart Lake to utilize DSM method for PM functionality | expand

Commit Message

Raymond Tan Aug. 3, 2020, 6:11 p.m. UTC
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_EHL to the list of devices that shall
execute the ACPI _DSM method during D0/D3 sequence.

Signed-off-by: Raymond Tan <raymond.tan@intel.com>
---
 drivers/usb/dwc3/dwc3-pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 4f436b3..4d50187 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -149,7 +149,8 @@  static int dwc3_pci_quirks(struct dwc3_pci *dwc)
 
 	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_EHL) {
 			guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid);
 			dwc->has_dsm_for_pm = true;
 		}