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authorEugen Hristev <eugen.hristev@microchip.com>2017-06-15 16:24:55 +0300
committerJonathan Cameron <jic23@kernel.org>2017-07-01 10:16:39 +0100
commit6ab6b4ec00d49c7459b823b82709e82543c79781 (patch)
tree84af323492ea861a3d2bcb26ff13f6a333cd4303 /Documentation/devicetree/bindings/iio
parentedd80a5f511c5c9f01042a12588be5e5af4efab7 (diff)
Documentation: dt: iio: at91-sama5d2_adc: add hw trigger edge binding
Add property for the edge type of the hardware trigger pin ADTRG Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/iio')
-rw-r--r--Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
index 3223684a643b..552e7a83951d 100644
--- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
@@ -11,6 +11,11 @@ Required properties:
- atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
- atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
- atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
+ - atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
+ trigger pin. When the specific edge type is detected, the conversion will
+ start. Possible values are rising, falling, or both.
+ This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
+ IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
Example:
@@ -25,4 +30,5 @@ adc: adc@fc030000 {
atmel,startup-time-ms = <4>;
vddana-supply = <&vdd_3v3_lp_reg>;
vref-supply = <&vdd_3v3_lp_reg>;
+ atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
}