phy: add phy-hi6220-usb

Support hi6220 use phy for HiKey board

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index f90b766..90eec60 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -222,6 +222,15 @@
 	  for mt65xx SoCs. it supports two usb2.0 ports and
 	  one usb3.0 port.
 
+config PHY_HI6220_USB
+	tristate "hi6220 USB PHY support"
+	select GENERIC_PHY
+	select MFD_SYSCON
+	help
+	  Enable this to support the HISILICON HI6220 USB PHY.
+
+	  To compile this driver as a module, choose M here.
+
 config PHY_SUN4I_USB
 	tristate "Allwinner sunxi SoC USB PHY driver"
 	depends on ARCH_SUNXI && HAS_IOMEM && OF