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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-10-03 11:09:16 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-10-03 11:09:16 +0200
commit0d3c24e936feefeca854073ccb40613cd6eba9a9 (patch)
tree1f675397b924846740b0931b066ddce6f3d7eb3d /Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
parent1af0838de60e723cb02253ecc9b555c30f8f6a6f (diff)
parentebec44a2456fbe5fe18aae88f6010f6878f0cb4a (diff)
Merge airlied/drm-next into drm-misc-next
Just catching up with upstream. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt')
-rw-r--r--Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index 8310073f14e1..48bfcaa3ffcd 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -74,6 +74,11 @@ Optional properties:
* can be 6, 8, 10 or 12 on stm32f4
* can be 8, 10, 12, 14 or 16 on stm32h7
Default is maximum resolution if unset.
+- st,min-sample-time-nsecs: Minimum sampling time in nanoseconds.
+ Depending on hardware (board) e.g. high/low analog input source impedance,
+ fine tune of ADC sampling time may be recommended.
+ This can be either one value or an array that matches 'st,adc-channels' list,
+ to set sample time resp. for all channels, or independently for each channel.
Example:
adc: adc@40012000 {