diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-07-08 15:38:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-19 08:16:11 +0200 |
| commit | 8ffa0cf2b662b0e575f77b8fee4c5e164cf19ea9 (patch) | |
| tree | 25a951afa95c932cd8c75420787466e6ffbba2e5 | |
| parent | 36f9ed95ec52b1d510adf1308475dd3583e8ecdc (diff) | |
phy: exynos5-usbdrd: Calibrating makes sense only for USB2.0 PHY
[ 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.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>
| -rw-r--r-- | drivers/phy/samsung/phy-exynos5-usbdrd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/phy/samsung/phy-exynos5-usbdrd.c b/drivers/phy/samsung/phy-exynos5-usbdrd.c index e510732afb8b..7f6279fb4f8f 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 = { |