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| Started by | Fabrice Gasnier <fabrice.gasnier@st.com> |
|---|---|
| First post | 2017-03-31 14:40 +0200 |
| Last post | 2017-04-03 21:50 +0200 |
| Articles | 4 — 3 participants |
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[PATCH v2 0/2] iio: allow to set STM32 ADC resolution Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-03-31 14:40 +0200
[PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-03-31 14:40 +0200
Re: [PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution Rob Herring <robh@kernel.org> - 2017-04-03 18:50 +0200
Re: [PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution Jonathan Cameron <jic23@kernel.org> - 2017-04-03 21:50 +0200
| From | Fabrice Gasnier <fabrice.gasnier@st.com> |
|---|---|
| Date | 2017-03-31 14:40 +0200 |
| Subject | [PATCH v2 0/2] iio: allow to set STM32 ADC resolution |
| Message-ID | <tr40p-4Bg-7@gated-at.bofh.it> |
STM32 ADC supports several resolution. Add dt option so resolution can be tuned at probe time. By default, maximum resolution is used when it isn't set. --- Changes in v2: - rename property from 'st,adc-res' to 'assigned-resolution-bits' so it is more common. Fabrice Gasnier (2): dt-bindings: iio: stm32-adc: add option to set resolution iio: adc: stm32: add dt option to set resolution .../devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++ drivers/iio/adc/stm32-adc.c | 50 +++++++++++++++++++++- 2 files changed, 53 insertions(+), 1 deletion(-) -- 1.9.1
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| From | Fabrice Gasnier <fabrice.gasnier@st.com> |
|---|---|
| Date | 2017-03-31 14:40 +0200 |
| Subject | [PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution |
| Message-ID | <tr40q-4Bg-15@gated-at.bofh.it> |
| In reply to | #1613961 |
Add documentation for 'assigned-resolution-bits' dt optional property.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
Changes in v2:
- rename property from 'st,adc-res' to 'assigned-resolution-bits' so it
is more common.
---
Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index 5dfc88e..e35f9f1 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -57,6 +57,9 @@ Optional properties:
- dmas: Phandle to dma channel for this ADC instance.
See ../../dma/dma.txt for details.
- dma-names: Must be "rx" when dmas property is being used.
+- assigned-resolution-bits: Resolution (bits) to use for conversions. Must
+ match device available resolutions (e.g. can be 6, 8, 10 or 12 on stm32f4).
+ Default is maximum resolution if unset.
Example:
adc: adc@40012000 {
@@ -84,6 +87,7 @@ Example:
st,adc-channels = <8>;
dmas = <&dma2 0 0 0x400 0x0>;
dma-names = "rx";
+ assigned-resolution-bits = <8>;
};
...
other adc child nodes follow...
--
1.9.1
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2017-04-03 18:50 +0200 |
| Subject | Re: [PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution |
| Message-ID | <tsdl0-Vb-25@gated-at.bofh.it> |
| In reply to | #1613962 |
On Fri, Mar 31, 2017 at 02:32:37PM +0200, Fabrice Gasnier wrote: > Add documentation for 'assigned-resolution-bits' dt optional property. > > Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> > --- > Changes in v2: > - rename property from 'st,adc-res' to 'assigned-resolution-bits' so it > is more common. > --- > Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++++ > 1 file changed, 4 insertions(+) Acked-by: Rob Herring <robh@kernel.org>
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| From | Jonathan Cameron <jic23@kernel.org> |
|---|---|
| Date | 2017-04-03 21:50 +0200 |
| Subject | Re: [PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution |
| Message-ID | <tsg9b-2Mf-1@gated-at.bofh.it> |
| In reply to | #1615412 |
On 03/04/17 17:46, Rob Herring wrote: > On Fri, Mar 31, 2017 at 02:32:37PM +0200, Fabrice Gasnier wrote: >> Add documentation for 'assigned-resolution-bits' dt optional property. >> >> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> >> --- >> Changes in v2: >> - rename property from 'st,adc-res' to 'assigned-resolution-bits' so it >> is more common. >> --- >> Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++++ >> 1 file changed, 4 insertions(+) > > Acked-by: Rob Herring <robh@kernel.org> Thanks. Applied to the togreg branch of iio.git. Will push out as testing for the autobuilders to have a chance to play with it. Jonathan > -- > To unsubscribe from this list: send the line "unsubscribe linux-iio" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >
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