diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/musb-new/sunxi.c | 29 |
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; |