On the BeagleBone Black, enable the dts node for the TSC/ADC. Add a
simple configuration that maps all eight channels in order. AIN[0:6]
are exposed on connector P9, while AIN7 measures the 3.3V rail divided
by 2.
Signed-off-by: Trent Piepho <trent.piepho@xxxxxxxxxxx>
---
arch/arm/dts/am335x-boneblack.dts | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/dts/am335x-boneblack.dts b/arch/arm/dts/am335x-boneblack.dts
index 80d710b92..c06a532e4 100644
--- a/arch/arm/dts/am335x-boneblack.dts
+++ b/arch/arm/dts/am335x-boneblack.dts
@@ -85,3 +85,13 @@
status = "okay";
};
};
+
+&tscadc {
+ status = "okay";
+ adc {
+ /* Ch 0-6 are on connector P9. Ch 7 measures the 3.3V rail
+ * divided by 2 (e.g., it should read 1650).
+ */
+ ti,adc-channels = <0>, <1>, <2>, <3>, <4>, <5>, <6>, <7>;
+ };
+};
--
2.25.4
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