hi , On Tue, Jul 21, 2015 at 6:11 PM, Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx> wrote: > From: Yi Zhang <yizhang@xxxxxxxxxxx> > > Enable i2c module/unit before transmission and disable when it > finishes. > > why? > It's because the i2c bus may be disturbed if the slave device, > typically a touch, powers on. Why should that be an issue? Is it an errata. In which mode it is an issue slave / master or both? > > As we do not want to break slave mode support, this patch introduces > DT property to control disable of the I2C module after xfer in master > mode of operation. > > i2c-disable-after-xfer : If set, driver will disable I2C module after > msg xfer > > Signed-off-by: Yi Zhang <yizhang@xxxxxxxxxxx> > Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx> > --- -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
