usb: dwc3: pci: Set enblslpm quirk for Synopsys platforms

Certain Synopsys prototyping PHY boards are not able to meet timings
constraints for LPM. This allows the PHY to meet those timings by
leaving the PHY clock running during suspend.

Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 6516530..77a622c 100644 (file)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -118,6 +118,7 @@ static int dwc3_pci_quirks(struct pci_dev *pdev)
                memset(&pdata, 0, sizeof(pdata));
                pdata.usb3_lpm_capable = true;
                pdata.has_lpm_erratum = true;
+               pdata.dis_enblslpm_quirk = true;
 
                return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
                                                sizeof(pdata));