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path: root/drivers/phy/allwinner/phy-sun4i-usb.c
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Diffstat (limited to 'drivers/phy/allwinner/phy-sun4i-usb.c')
-rw-r--r--drivers/phy/allwinner/phy-sun4i-usb.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index 4194a15007..2b3cf48025 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -36,6 +36,7 @@
#define PHY_TX_AMPLITUDE_TUNE 0x20
#define PHY_TX_SLEWRATE_TUNE 0x22
#define PHY_DISCON_TH_SEL 0x2a
+#define PHY_SQUELCH_DETECT 0x3c
#define PHYCTL_DATA BIT(7)
#define OTGCTL_ROUTE_MUSB BIT(0)
@@ -383,6 +384,11 @@ int sun4i_usb_phy_id_detect(struct phy *phy)
return gpio_get_value(usb_phy->gpio_id_det);
}
+void sun4i_usb_phy_set_squelch_detect(struct phy *phy, bool enabled)
+{
+ sun4i_usb_phy_write(phy, PHY_SQUELCH_DETECT, enabled ? 0 : 2, 2);
+}
+
static struct phy_ops sun4i_usb_phy_ops = {
.of_xlate = sun4i_usb_phy_xlate,
.init = sun4i_usb_phy_init,