usb: dwc3: pci: Enable usb2-gadget-lpm-disable for Intel Merrifield

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@gmail.com>
Signed-off-by: Ferry Toth <ftoth@exalondelft.nl>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210425150947.5862-1-ftoth@exalondelft.nl
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 58b8801ce88165325af03df37796ab7dedc66601..5a7c152c9ee3968acb240b5d4d64caa431d9201d 100644 (file)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -138,6 +138,7 @@ static const struct property_entry dwc3_pci_amd_properties[] = {
        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"),
        {}
 };