[PATCH] usb: dwc3: pci: Allow Elkhart Lake to utilize DSM method for PM functionality
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: 2020-08-21 13:11:07
Also in:
stable
Subsystem:
designware usb3 drd ip driver, the rest, usb subsystem · Maintainers:
Thinh Nguyen, Linus Torvalds, Greg Kroah-Hartman
From: Raymond Tan <redacted>
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 <redacted>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
drivers/usb/dwc3/dwc3-pci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index f5a61f57c74f0..242b6210380a4 100644
--- 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_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_EHLLP) { guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid); dwc->has_dsm_for_pm = true; }
--
2.28.0