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phy: exynos5-usbdrd: Calibrating makes sense only for USB2.0 PHY 

[ Upstream commit dcbabfeb17 ]

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: d8c80bb3b5 ("phy: exynos5-usbdrd: Calibrate LOS levels for exynos5420/5800")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200708133800.3336-1-m.szyprowski@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Marek Szyprowski 2020-07-08 15:38:00 +02:00 committed by Greg Kroah-Hartman
parent 36f9ed95ec
commit 8ffa0cf2b6
1 changed files with 3 additions and 1 deletions
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4
drivers/phy/samsung/phy-exynos5-usbdrd.c
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@ -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 = {