On 05/05/11 10:44, Alexander Stein wrote: > Am Donnerstag, 5. Mai 2011, 11:08:18 schrieb Jonathan Cameron: >> On 05/05/11 09:32, Alexander Stein wrote: >>> Just set vref_mv in your platform config to use external vref. Otherwise >>> the internal one is used. >> >> Would be nicer to see this done with the regulator framework. But then if >> you have a use case on a board where that isn't available, then fair >> enough. > > Well, for the regulator framework I would redesign the driver a bit. Currently > the analogue inputs are displayed as mV in sysfs. If the current analogue > input voltage is shown via the regulator framework the ads7846 driver itself > can shows the actual ADC values. The latter ones don't need to know the > reference voltage. > But I think this is a different problem than choosing the reference voltage > for an ADC for what this patch is for. I'm somewhat confused by what you mean here. The regulator framework is all about power supplies. This device would merely be a consumer that asks for what (if anything) is being uspplied to the external vref line. Basically it's a more general alternative to supplying the value via platform data. -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
