usb: core: phy: add support for PHY calibration
Some PHYs (for example Exynos5 USB3.0 DRD PHY) require calibration to be done after every USB HCD reset. Generic PHY framework has been already extended with phy_calibrate() function in commit 36914111 ("drivers: phy: add calibrate method"). This patch adds support for it to generic PHY handling code in USB HCD core. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Tested-by: NAnand Moon <linux.amoon@gmail.com> Tested-by: NJochen Sprickerhof <jochen@sprickerhof.de> Link: https://lore.kernel.org/r/20190829053028.32438-2-m.szyprowski@samsung.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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