On Thu, Jan 05, 2017 at 07:17:14PM +0100, Greg KH wrote: > On Tue, Jan 03, 2017 at 06:13:50PM -0600, Bin Liu wrote: > > From: Pali Rohár <[email protected]> > > > > Based on the musb ug, force_host bit is allowed to be set along with > > force_hs or force_fs bit. > > > > It could help to implement forced host mode via testmode on Nokia N900. > > > > Signed-off-by: Pali Rohár <[email protected]> > > Signed-off-by: Bin Liu <[email protected]> > > --- > > v2: no change. > > > > drivers/usb/musb/musb_debugfs.c | 46 > > ++++++++++++++++++++++++++--------------- > > 1 file changed, 29 insertions(+), 17 deletions(-) > > Why is this a 4.10-rc change? It implements a new feature, it's not a > regression fix, right?
No, it is not for a new feature, but fixes the driver to align with the hw manual, so that the musb host can be functional (again) on N900. N900 musb used to work, but some time ago (2015/2016?) the musb debugfs driver was modified to eliminate the possibility of usb test mode abuse, but the change breaks N900 musb host function. Regards, -Bin. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
