Hi Jonathan,
On Monday 16 September 2013 10:10:22 Jürgen Beisert wrote:
> [...]
> > 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.
I would suggest:
diff --git a/drivers/staging/iio/TODO b/drivers/staging/iio/TODO
index 04c2326..c22a0ed 100644
--- a/drivers/staging/iio/TODO
+++ b/drivers/staging/iio/TODO
@@ -13,6 +13,17 @@ Would be nice
3) Expand device set. Lots of other maxim adc's have very
similar interfaces.
+MXS LRADC driver:
+This is a classic MFD device as it combines the following subdevices
+ - touchscreen controller (input subsystem related device)
+ - general purpose ADC channels
+ - battery voltage monitor (power subsystem related device)
+ - die temperature monitor (thermal management)
+
+At least the battery voltage and die temperature feature is required in-kernel
+by a driver of the SoC's battery charging unit to avoid any damage to the
+silicon and the battery.
+
TSL2561
Would be nice
1) Open question of userspace vs kernel space balance when
Regards,
Juergen
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | http://www.pengutronix.de/ |
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