[PATCH] phy: rcar: fix gen3-usb2 build error

[Wang Dongsheng]

of_usb_get_dr_mode_by_phy is implemented in usb/common/common.c.
So the PHY_RCAR_GEN3_USB2 must depend on USB_SUPPORT/USB_COMMON.

 LD      vmlinux.o
 MODPOST vmlinux.o
.../phy-rcar-gen3-usb2.o: In function `rcar_gen3_phy_usb2_probe':
...: undefined reference to `of_usb_get_dr_mode_by_phy'
make: *** [vmlinux] Error 1

Signed-off-by: Wang Dongsheng <dongsheng.wang@xxxxxxxxxxxxxxxx>
---
 drivers/phy/renesas/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/renesas/Kconfig b/drivers/phy/renesas/Kconfig
index cb09245..c845fac 100644
--- a/drivers/phy/renesas/Kconfig
+++ b/drivers/phy/renesas/Kconfig
@@ -12,7 +12,9 @@ config PHY_RCAR_GEN3_USB2
 	tristate "Renesas R-Car generation 3 USB 2.0 PHY driver"
 	depends on ARCH_RENESAS
 	depends on EXTCON
+	depends on USB_SUPPORT
 	select GENERIC_PHY
+	select USB_COMMON
 	help
 	  Support for USB 2.0 PHY found on Renesas R-Car generation 3 SoCs.
 
-- 
2.7.4