On Fri, Jul 11, 2014 at 8:29 AM, Tuomas Tynkkynen <[email protected]> wrote: > > On the hardware level, the two I2C controllers sharing the same pins > have knowledge of each other and won't start transmitting if the bus > is busy (something different from the usual I2C arbitration, that is). > I guess on the kernel side there could be a problem if the voltage register > is marked cached in the PMIC driver's regmap.
Yeah, in our tree we have a hack to disable regcache for SD0_VOLTAGE. Other than the value reported to userspace being wrong, leaving it as cacheable shouldn't be an issue if no other drivers try to read/write that register. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
