From: John Youn <John.Youn@synopsys.com>
Date: Sat, 3 Oct 2015 03:32:17 +0000 (-0700)
Subject: usb: dwc3: pci: Set enblslpm quirk for Synopsys platforms
X-Git-Tag: v4.2.7~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c9af01573b04c699ae8f062cd3b32bdc3e7b677;p=thirdparty%2Fkernel%2Fstable.git

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

commit 94218ee31ba56fb3a8625978b393124ad660408e upstream.

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.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 916905b03c37e..04b87ebe6f940 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -112,6 +112,7 @@ 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));