[U-Boot] [PATCH v3 6/7] board: evb-rk3399: enable usb 2.0 host vbus power on board_init

[Kever Yang]

rk3399 using one gpio control signal for two usb 2.0 host port,
it's better to enable the power in board file instead of in usb driver.

Signed-off-by: Kever Yang <kever.y...@rock-chips.com>
Acked-by: Simon Glass <s...@chromium.org>
---

Changes in v3:
- add Acked-by tag from Simon

Changes in v2:
- use regulator_get_by_platname instead of uclass_get_device_by_name

 board/rockchip/evb_rk3399/evb-rk3399.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c 
b/board/rockchip/evb_rk3399/evb-rk3399.c
index 5d3a09a..5b245e4 100644
--- a/board/rockchip/evb_rk3399/evb-rk3399.c
+++ b/board/rockchip/evb_rk3399/evb-rk3399.c
@@ -9,12 +9,13 @@
 #include <asm/arch/periph.h>
 #include <usb.h>
 #include <dwc3-uboot.h>
+#include <power/regulator.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 int board_init(void)
 {
-       struct udevice *pinctrl;
+       struct udevice *pinctrl, *regulator;
        int ret;
 
        /*
@@ -40,6 +41,18 @@ int board_init(void)
                goto out;
        }
 
+       ret = regulator_get_by_platname("vcc5v0_host", &regulator);
+       if (ret) {
+               debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
+               goto out;
+       }
+
+       ret = regulator_set_enable(regulator, true);
+       if (ret) {
+               debug("%s vcc5v0-host-en set fail!\n", __func__);
+               goto out;
+       }
+
 out:
        return 0;
 }
-- 
1.9.1

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