Introduce support for touchscreen channels found in JZ47xx SoCs.

Signed-off-by: Artur Rojek <[email protected]>
Tested-by: Paul Cercueil <[email protected]>
Acked-by: Rob Herring <[email protected]>
---

 Changes:

 v2-v6: no change

 include/dt-bindings/iio/adc/ingenic,adc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/dt-bindings/iio/adc/ingenic,adc.h 
b/include/dt-bindings/iio/adc/ingenic,adc.h
index 42f871ab3272..95e20a8d6dc8 100644
--- a/include/dt-bindings/iio/adc/ingenic,adc.h
+++ b/include/dt-bindings/iio/adc/ingenic,adc.h
@@ -7,5 +7,7 @@
 #define INGENIC_ADC_AUX                0
 #define INGENIC_ADC_BATTERY    1
 #define INGENIC_ADC_AUX2       2
+#define INGENIC_ADC_TOUCH_XP   3
+#define INGENIC_ADC_TOUCH_YP   4
 
 #endif
-- 
2.26.2

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