Add a property to tune usb2 phy's disconnect threshold.
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
---
drivers/phy/mediatek/phy-mtk-xsphy.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/phy/mediatek/phy-mtk-xsphy.c b/drivers/phy/mediatek/phy-mtk-xsphy.c
index 7c248f5cfca5..718ed8f17c2d 100644
--- a/drivers/phy/mediatek/phy-mtk-xsphy.c
+++ b/drivers/phy/mediatek/phy-mtk-xsphy.c
@@ -59,6 +59,7 @@
#define XSP_USBPHYACR6 ((SSUSB_SIFSLV_U2PHY_COM) + 0x018)
#define P2A6_RG_BC11_SW_EN BIT(23)
#define P2A6_RG_OTG_VBUSCMP_EN BIT(20)
+#define PA6_RG_U2_DISCTH GENMASK(7, 4)
#define XSP_U2PHYDTM1 ((SSUSB_SIFSLV_U2PHY_COM) + 0x06C)
#define P2D_FORCE_IDDIG BIT(9)
@@ -95,6 +96,7 @@ struct xsphy_instance {
int eye_src;
int eye_vrt;
int eye_term;
+ int discth;
};
struct mtk_xsphy {
@@ -244,9 +246,12 @@ static void phy_parse_property(struct mtk_xsphy *xsphy,
&inst->eye_vrt);
device_property_read_u32(dev, "mediatek,eye-term",
&inst->eye_term);
- dev_dbg(dev, "intr:%d, src:%d, vrt:%d, term:%d\n",
+ device_property_read_u32(dev, "mediatek,discth",
+ &inst->discth);
+ dev_dbg(dev, "intr:%d, src:%d, vrt:%d, term:%d, discth:%d\n",
inst->efuse_intr, inst->eye_src,
- inst->eye_vrt, inst->eye_term);
+ inst->eye_vrt, inst->eye_term,
+ inst->discth);
break;
case PHY_TYPE_USB3:
device_property_read_u32(dev, "mediatek,efuse-intr",
@@ -285,6 +290,9 @@ static void u2_phy_props_set(struct mtk_xsphy *xsphy,
if (inst->eye_term)
mtk_phy_update_field(pbase + XSP_USBPHYACR1, P2A1_RG_TERM_SEL,
inst->eye_term);
+ if (inst->discth)
+ mtk_phy_update_field(pbase + XSP_USBPHYACR6, PA6_RG_U2_DISCTH,
+ inst->discth);
}
static void u3_phy_props_set(struct mtk_xsphy *xsphy,
--
2.46.0
