On Sunday, July 23, 2017 03:28:01 PM Andy Shevchenko wrote: > On Fri, 2017-07-21 at 23:12 +0200, Rafael J. Wysocki wrote: > > On Saturday, July 08, 2017 04:58:03 PM Andy Shevchenko wrote: > > > On Sat, 2017-07-08 at 15:40 +0200, Hans de Goede wrote: > > > > Testing has shown that the TS-pin's bias-current needs to be > > > > disabled > > > > when reading the GPIO0 pin in GPADC mode. > > > > > > > > It seems that there is only 1 bias current source and to be able > > > > to > > > > use it > > > > for the GPIO0 pin in GPADC mode it must be temporarily turned off > > > > for > > > > the > > > > TS pin, but the datasheet does not mention this. > > > > > > > > This commit adds the necessary writes to turn the TS pin BIAS > > > > current > > > > off before and back on after reading the GPADC. This fixes the > > > > GPADC > > > > always returning a reading of 0. > > > > > > > > > > > > + /* After switching to the GPADC pin give things some time > > > > to > > > > settle */ > > > > + usleep_range(6000, 10000); > > > > > > msleep(6); ? > > > > > Is this the only issue you have with the $subject patch? > > As Hans explained to me there is no issue. OK, so patch applied. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
