diff options
| author | Heiko Stübner <heiko@sntech.de> | 2011-09-04 19:56:02 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-09-18 08:33:06 (GMT) |
| commit | fba9e546eac984d46c4a16253344d7297c24d75c (patch) | |
| tree | 987829f01db3de5f3ba0edee3001826184bb941f /drivers | |
| parent | e538dfdae85244fd2c4231725d82cc1f1bc4942c (diff) | |
| download | linux-fba9e546eac984d46c4a16253344d7297c24d75c.tar.xz | |
s3c-hsudc: implement vbus_draw hook
When a transceiver is available use otg_set_power to submit
the target current to it.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/s3c-hsudc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index 25829b4..8d54f89 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -1241,10 +1241,24 @@ static int s3c_hsudc_gadget_getframe(struct usb_gadget *gadget) return s3c_hsudc_read_frameno(to_hsudc(gadget)); } +static int s3c_hsudc_vbus_draw(struct usb_gadget *gadget, unsigned mA) +{ + struct s3c_hsudc *hsudc = the_controller; + + if (!hsudc) + return -ENODEV; + + if (hsudc->transceiver) + return otg_set_power(hsudc->transceiver, mA); + + return -EOPNOTSUPP; +} + static struct usb_gadget_ops s3c_hsudc_gadget_ops = { .get_frame = s3c_hsudc_gadget_getframe, .start = s3c_hsudc_start, .stop = s3c_hsudc_stop, + .vbus_draw = s3c_hsudc_vbus_draw, }; static int s3c_hsudc_probe(struct platform_device *pdev) |