[PATCH 5.7 196/393] phy: exynos5-usbdrd: Calibrating makes sense only for USB2.0 PHY

[Greg Kroah-Hartman]

From: Marek Szyprowski <m.szyprow...@samsung.com>

[ Upstream commit dcbabfeb17c3c2fdb6bc92a3031ecd37df1834a8 ]

PHY calibration is needed only for USB2.0 (UTMI) PHY, so skip calling
calibration code when phy_calibrate() is called for USB3.0 (PIPE3) PHY.

Fixes: d8c80bb3b55b ("phy: exynos5-usbdrd: Calibrate LOS levels for 
exynos5420/5800")
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
Acked-by: Krzysztof Kozlowski <k...@kernel.org>
Link: https://lore.kernel.org/r/20200708133800.3336-1-m.szyprow...@samsung.com
Signed-off-by: Vinod Koul <vk...@kernel.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/phy/samsung/phy-exynos5-usbdrd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/samsung/phy-exynos5-usbdrd.c 
b/drivers/phy/samsung/phy-exynos5-usbdrd.c
index e510732afb8b0..7f6279fb4f8fa 100644
--- a/drivers/phy/samsung/phy-exynos5-usbdrd.c
+++ b/drivers/phy/samsung/phy-exynos5-usbdrd.c
@@ -714,7 +714,9 @@ static int exynos5_usbdrd_phy_calibrate(struct phy *phy)
        struct phy_usb_instance *inst = phy_get_drvdata(phy);
        struct exynos5_usbdrd_phy *phy_drd = to_usbdrd_phy(inst);
 
-       return exynos5420_usbdrd_phy_calibrate(phy_drd);
+       if (inst->phy_cfg->id == EXYNOS5_DRDPHY_UTMI)
+               return exynos5420_usbdrd_phy_calibrate(phy_drd);
+       return 0;
 }
 
 static const struct phy_ops exynos5_usbdrd_phy_ops = {
-- 
2.25.1