Hi Jonathan, On Sunday 15 September 2013 12:56:25 Jonathan Cameron wrote: > On 09/11/13 09:18, Juergen Beisert wrote: > > For battery driven systems it is a very bad idea to collect the > > touchscreen data within a kernel busy loop. > > > > This change uses the features of the hardware to delay and accumulate > > samples in hardware to avoid a high interrupt and CPU load. > > > > Note: this is only tested on an i.MX23 SoC yet. > > > > Signed-off-by: Juergen Beisert <jbe@xxxxxxxxxxxxxx> > > CC: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > > CC: devel@xxxxxxxxxxxxxxxxxxxx > > CC: Marek Vasut <marex@xxxxxxx> > > CC: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> > > CC: Jonathan Cameron <jic23@xxxxxxxxx> > > While this driver is placed in IIO within staging at the moment, these > changes are definitely input related. Hence I have cc'd Dmitry and the > input list. > > I am personaly a little uncomfortable that we have such a complex bit of > input code sat within an IIO driver but such is life. Maybe an MFD for this ADC unit would be a better way to go? Currently I have a different problem with this driver, because the ADC unit monitors the battery as well. And the charging driver from the power subsystem needs these values to charge the battery in a correct manner. > [...] Regards, Juergen -- Pengutronix e.K. | Juergen Beisert | Linux Solutions for Science and Industry | http://www.pengutronix.de/ | -- 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
