phy-sun4i-usb: Change disconnect threshold value for sun6i

The allwinner SDK uses a value of 3 for the disconnect threshold setting on
sun6i, do the same in the kernel.

In my previous experience with sun5i problems getting the threshold right
is important to avoid usb2 devices being unplugged sometimes going unnoticed.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index fb02a67c91811e5291757c8fbb330439c3d95e89..a2b08f3ccb031cbf3a484cb0afab5665c0fb3ad7 100644 (file)
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -244,7 +244,8 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
        else
                data->num_phys = 3;
 
-       if (of_device_is_compatible(np, "allwinner,sun4i-a10-usb-phy"))
+       if (of_device_is_compatible(np, "allwinner,sun4i-a10-usb-phy") ||
+           of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy"))
                data->disc_thresh = 3;
        else
                data->disc_thresh = 2;