From ebd468b2d26660ff7811e37cc64fa2369d4b5fff Mon Sep 17 00:00:00 2001 From: Paul Kocialkowski Date: Sun, 22 Mar 2015 18:07:12 +0100 Subject: sunxi: common VBUS detection logic in usbc VBUS detection could be needed not only by the musb code (to prevent host mode), but also by e.g. gadget drivers to start only when a cable is connected. In addition, this allows more flexibility in vbus detection, as it could easily be extended to other USBC indexes. Eventually, this would help making musb support independent from a hardcoded USB controller index (0). Signed-off-by: Paul Kocialkowski Acked-by: Hans de Goede Signed-off-by: Hans de Goede --- drivers/usb/musb-new/sunxi.c | 35 ++++++----------------------------- 1 file changed, 6 insertions(+), 29 deletions(-) (limited to 'drivers/usb/musb-new') diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index 8049944..c9a6a16 100644 --- a/drivers/usb/musb-new/sunxi.c +++ b/drivers/usb/musb-new/sunxi.c @@ -235,42 +235,19 @@ 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 < 0) { - gpio_free(vbus_det); - return -EIO; - } - - gpio_free(vbus_det); + err = sunxi_usbc_request_resources(0); + if (err) + return err; + if (is_host_enabled(musb)) { + err = sunxi_usbc_vbus_detect(0); if (err) { eprintf("Error: A charger is plugged into the OTG\n"); + sunxi_usbc_free_resources(0); return -EIO; } } - err = sunxi_usbc_request_resources(0); - if (err) - return err; - musb->isr = sunxi_musb_interrupt; sunxi_usbc_enable(0); -- cgit v1.1