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80c1606d13
Add DM driver for Exynos USB PHY controllers. For now it only supports Exynos850 SoC. Only UTMI+ (USB 2.0) PHY interface is implemented, as Exynos850 doesn't support USB 3.0. Only two clocks are used for this controller: - phy: bus clock, used for PHY registers access - ref: PHY reference clock (OSCCLK) Ported from Linux kernel: drivers/phy/samsung/phy-exynos5-usbdrd.c Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>