diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2010-05-25 08:36:51 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-05 00:16:19 +0400 |
| commit | 2e0e0777ec2ea1cb5461bded2c09573a9d778622 (patch) | |
| tree | 3482e6aa8e2163893a759e189f03846ac15920bc /drivers/usb/gadget/s3c-hsotg.c | |
| parent | 0f002d200598918f5058dfcfda3da46f29019765 (diff) | |
| download | linux-2e0e0777ec2ea1cb5461bded2c09573a9d778622.tar.xz | |
USB: s3c-hsotg: SoftDisconnect minimum 3ms
The shortest period SoftDisconnect can be asserted for is 3 milliseconds
according to the V210 datasheet, so ensure that we add an msleep() to
the registration code to enforce this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/s3c-hsotg.c')
| -rw-r--r-- | drivers/usb/gadget/s3c-hsotg.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 9abf96c5715d..31d19e1f261d 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2599,6 +2599,9 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) writel(S3C_DCTL_CGOUTNak | S3C_DCTL_CGNPInNAK, hsotg->regs + S3C_DCTL); + /* must be at-least 3ms to allow bus to see disconnect */ + msleep(3); + /* remove the soft-disconnect and let's go */ __bic32(hsotg->regs + S3C_DCTL, S3C_DCTL_SftDiscon); |