On Sun, Oct 04, 2015 at 06:05:59PM +0200, H. Nikolaus Schaller wrote: > From: Marek Belisko <marek@xxxxxxxxxxxxx> > > Code was found at: > https://android.googlesource.com/kernel/tegra/+/a90856a6626d502d42c6e7abccbdf9d730b36270%5E%21/#F1 > > Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx> > [Fixed minor typos + add channels list to documentation] > Signed-off-by: Marek Belisko <marek@xxxxxxxxxxxxx> > --- > .../devicetree/bindings/iio/adc/palmas-gpadc.txt | 46 +++++++++++++++++++ > drivers/iio/adc/palmas_gpadc.c | 52 +++++++++++++++++++--- > 2 files changed, 93 insertions(+), 5 deletions(-) > create mode 100644 Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt > > diff --git a/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt b/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt > new file mode 100644 > index 0000000..2149afe > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt > @@ -0,0 +1,46 @@ > +* Palmas general purpose ADC IP block devicetree bindings > + > +Channels list: > + 0 battery type > + 1 battery temp NTC (optional current source) > + 2 GP > + 3 temp (with ext. diode, optional current source) > + 4 GP > + 5 GP > + 6 VBAT_SENSE > + 7 VCC_SENSE > + 8 Backup Battery voltage > + 9 external charger (VCHG) > + 10 VBUS > + 11 DC-DC current probe (how does this work?) > + 12 internal die temp > + 13 internal die temp > + 14 USB ID pin voltage > + 15 test network > + > +Required properties: > +- compatible : Must be "ti,palmas-gpadc". > + > +Optional sub-nodes: > +ti,channel0-current-microamp: Channel 0 current in uA. > + Values are rounded to derive 0uA, 5uA, 15uA, 20uA. > +ti,channel3-current-microamp: Channel 3 current in uA. > + Valid are rounded to derive 0uA, 10uA, 400uA, 800uA. It's only possible to configure channels 0 and 3 in this manner? > +ti,enable-extended-delay: Enable extended delay. What is this? When would I select it? Why does it belong in the DT rather than being a runtime option? > +Example: > + > +pmic { > + compatible = "ti,twl6035-pmic", "ti,palmas-pmic"; > + ... > + gpadc { > + compatible = "ti,palmas-gpadc"; > + interrupts = <18 0 > + 16 0 > + 17 0>; > + ti,channel0-current-microamp = <5>; > + ti,channel3-current-microamp = <10>; > + }; > + }; > + ... > +}; I thought you needed #iio-cells for encoding the channel? Mark. -- 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
