| Message ID | 20170526110413.24836-3-enric.balletbo@collabora.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
Hi Enric, On Fri, May 26, 2017 at 4:04 AM, Enric Balletbo i Serra <enric.balletbo@collabora.com> wrote: > The TS pin of the TPS56217 connects to the NTC resistor in the battery > pack. By default the device is setup to support a 10-kohm but can also > be configured to support a 100-kohm. Add a propietry to configure the > connected NTC resistor. Therefore, the charger would get the wrong > temperature information. This also needs a monitored-battery property, and a battery node in the example. See https://patchwork.kernel.org/patch/9710803/ > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> > --- > Changes since v2: > - Requested by Sebastian Reichel > - Get rid of common properties and only maintain ntc-type. > Changes since v1: > - None > > .../devicetree/bindings/power/supply/tps65217_charger.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt > index a11072c..851f5c7 100644 > --- a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt > +++ b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt > @@ -6,6 +6,12 @@ Required Properties: > Should be <0> for the USB charger and <1> for the AC adapter. > -interrupt-names: Should be "USB" and "AC" > > +Optional properties: > +-ti,ntc-type: set the NTC type for battery temperature measurement. The value > + must be 0 or 1, where: > + 0 – 100k (curve 1, B = 3960) > + 1 – 10k (curve 2, B = 3480) (default) > + > This node is a subnode of the tps65217 PMIC. > > Example: > @@ -14,4 +20,5 @@ Example: > compatible = "ti,tps65217-charger"; > interrupts = <0>, <1>; > interrupt-names = "USB", "AC"; > + ti,ntc-type = <1>; > }; > -- > 2.9.3 >
2017-05-26 23:26 GMT+02:00 Liam Breck <liam@networkimprov.net>: > Hi Enric, > > On Fri, May 26, 2017 at 4:04 AM, Enric Balletbo i Serra > <enric.balletbo@collabora.com> wrote: >> The TS pin of the TPS56217 connects to the NTC resistor in the battery >> pack. By default the device is setup to support a 10-kohm but can also >> be configured to support a 100-kohm. Add a propietry to configure the >> connected NTC resistor. Therefore, the charger would get the wrong >> temperature information. > > This also needs a monitored-battery property, and a battery node in > the example. See https://patchwork.kernel.org/patch/9710803/ > Right I'll add the property in v4. > >> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> >> --- >> Changes since v2: >> - Requested by Sebastian Reichel >> - Get rid of common properties and only maintain ntc-type. >> Changes since v1: >> - None >> >> .../devicetree/bindings/power/supply/tps65217_charger.txt | 7 +++++++ >> 1 file changed, 7 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt >> index a11072c..851f5c7 100644 >> --- a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt >> +++ b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt >> @@ -6,6 +6,12 @@ Required Properties: >> Should be <0> for the USB charger and <1> for the AC adapter. >> -interrupt-names: Should be "USB" and "AC" >> >> +Optional properties: >> +-ti,ntc-type: set the NTC type for battery temperature measurement. The value >> + must be 0 or 1, where: >> + 0 – 100k (curve 1, B = 3960) >> + 1 – 10k (curve 2, B = 3480) (default) >> + >> This node is a subnode of the tps65217 PMIC. >> >> Example: >> @@ -14,4 +20,5 @@ Example: >> compatible = "ti,tps65217-charger"; >> interrupts = <0>, <1>; >> interrupt-names = "USB", "AC"; >> + ti,ntc-type = <1>; >> }; >> -- >> 2.9.3 >>
diff --git a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt index a11072c..851f5c7 100644 --- a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt +++ b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt @@ -6,6 +6,12 @@ Required Properties: Should be <0> for the USB charger and <1> for the AC adapter. -interrupt-names: Should be "USB" and "AC" +Optional properties: +-ti,ntc-type: set the NTC type for battery temperature measurement. The value + must be 0 or 1, where: + 0 – 100k (curve 1, B = 3960) + 1 – 10k (curve 2, B = 3480) (default) + This node is a subnode of the tps65217 PMIC. Example: @@ -14,4 +20,5 @@ Example: compatible = "ti,tps65217-charger"; interrupts = <0>, <1>; interrupt-names = "USB", "AC"; + ti,ntc-type = <1>; };
The TS pin of the TPS56217 connects to the NTC resistor in the battery pack. By default the device is setup to support a 10-kohm but can also be configured to support a 100-kohm. Add a propietry to configure the connected NTC resistor. Therefore, the charger would get the wrong temperature information. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> --- Changes since v2: - Requested by Sebastian Reichel - Get rid of common properties and only maintain ntc-type. Changes since v1: - None .../devicetree/bindings/power/supply/tps65217_charger.txt | 7 +++++++ 1 file changed, 7 insertions(+)