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-rw-r--r--drivers/usb/musb-new/sunxi.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 4646a3d..fe45db1 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -22,7 +22,9 @@
*/
#include <common.h>
#include <asm/arch/cpu.h>
+#include <asm/arch/gpio.h>
#include <asm/arch/usbc.h>
+#include <asm-generic/gpio.h>
#include "linux-compat.h"
#include "musb_core.h"
@@ -224,6 +226,33 @@ static int sunxi_musb_init(struct musb *musb)
pr_debug("%s():\n", __func__);
+ if (is_host_enabled(musb)) {
+ int vbus_det = sunxi_name_to_gpio(CONFIG_USB0_VBUS_DET);
+ if (vbus_det == -1) {
+ eprintf("Error invalid Vusb-det pin\n");
+ return -EINVAL;
+ }
+
+ err = gpio_request(vbus_det, "vbus0_det");
+ if (err)
+ return err;
+
+ err = gpio_direction_input(vbus_det);
+ if (err) {
+ gpio_free(vbus_det);
+ return err;
+ }
+
+ err = gpio_get_value(vbus_det);
+ if (err) {
+ eprintf("Error: A charger is plugged into the OTG\n");
+ gpio_free(vbus_det);
+ return -EIO;
+ }
+
+ gpio_free(vbus_det);
+ }
+
err = sunxi_usbc_request_resources(0);
if (err)
return err;