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authorRick Altherr2017-03-28 23:52:58 +0200
committerJonathan Cameron2017-04-01 12:50:18 +0200
commitfb87ecf19e350d73206c5fbf28a28588f171f15d (patch)
tree4d73f8857bf94acfe5e73e159adf39c6c86b446b
parentstaging: iio: light: tsl2x7x constify attribute_group structures (diff)
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Documentation: dt-bindings: Document bindings for Aspeed ADC
Signed-off-by: Rick Altherr <raltherr@google.com> Acked-by: Joel Stanley <joel@jms.id.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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+Aspeed ADC
+
+This device is a 10-bit converter for 16 voltage channels. All inputs are
+single ended.
+
+Required properties:
+- compatible: Should be "aspeed,ast2400-adc" or "aspeed,ast2500-adc"
+- reg: memory window mapping address and length
+- clocks: Input clock used to derive the sample clock. Expected to be the
+ SoC's APB clock.
+- #io-channel-cells: Must be set to <1> to indicate channels are selected
+ by index.
+
+Example:
+ adc@1e6e9000 {
+ compatible = "aspeed,ast2400-adc";
+ reg = <0x1e6e9000 0xb0>;
+ clocks = <&clk_apb>;
+ #io-channel-cells = <1>;
+ };