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iio: adc: Document the regulator/clocks for exynos-adc

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The exynos ADC won't work without a regulator called "vdd" and a clock
called "adc".  Document this fact in the device tree bindings.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Doug Anderson 2013-03-13 20:39:00 +00:00 committed by Jonathan Cameron
parent f6e8a9687b
commit 2b684024b5
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
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@ -20,6 +20,9 @@ Required properties:
format is being dependent on which interrupt controller format is being dependent on which interrupt controller
the Samsung device uses. the Samsung device uses.
- #io-channel-cells = <1>; As ADC has multiple outputs - #io-channel-cells = <1>; As ADC has multiple outputs
- clocks From common clock binding: handle to adc clock.
- clock-names From common clock binding: Shall be "adc".
- vdd-supply VDD input supply.
Note: child nodes can be added for auto probing from device tree. Note: child nodes can be added for auto probing from device tree.
@ -31,6 +34,11 @@ adc: adc@12D10000 {
interrupts = <0 106 0>; interrupts = <0 106 0>;
#io-channel-cells = <1>; #io-channel-cells = <1>;
io-channel-ranges; io-channel-ranges;
clocks = <&clock 303>;
clock-names = "adc";
vdd-supply = <&buck5_reg>;
}; };