On Thu, Aug 21, 2014 at 09:29:56AM +0200, Johannes Pointner wrote: > Hello, > > I found out that since this patch https://lkml.org/lkml/2014/6/11/201, > which fixes the return values in this function, the ntc_thermistor > driver isn't working anymore for me. > The problem is that before the driver asked for probe deferral because > the adc driver isn't loaded at this point and now the probe fails in > the function iio_channel_get_sys and returns -ENODEV. > My question is: Who is in this case responsible to request a deferral? > The driver or the subsystem? > Unless I am missing something, iio_get_channel() should request probe deferral. There is no other way for the driver to know that the adc driver is not loaded yet. The problem here may be that the devicetree entry for the ntc_thermistor driver may not be correct. The above referenced patch fixes a bug in that area, and devicetree data is now better validated. Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
