[PATCH 5.4 114/141] usb: dwc3: pci: Enable usb2-gadget-lpm-disable for Intel Merrifield

[Greg Kroah-Hartman]

From: Ferry Toth <ftoth@xxxxxxxxxxxxxx>

commit 04357fafea9c7ed34525eb9680c760245c3bb958 upstream.

On Intel Merrifield LPM is causing host to reset port after a timeout.
By disabling LPM entirely this is prevented.

Fixes: 066c09593454 ("usb: dwc3: pci: Enable extcon driver for Intel Merrifield")
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Signed-off-by: Ferry Toth <ftoth@xxxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210425150947.5862-1-ftoth@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/usb/dwc3/dwc3-pci.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -138,6 +138,7 @@ static const struct property_entry dwc3_
 	PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"),
 	PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
 	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
+	PROPERTY_ENTRY_BOOL("snps,usb2-gadget-lpm-disable"),
 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
 	{}
 };