This corrects the example by adding #address-cells, #size-cells and a reg for
each trigger to comply to the ePAPR, as suggested by Mark Rutland in
http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/234184.html
Also, it removes the properties that are not used anymore, to stop propagating
them.
Also fixes atmel,adc-use-external-triggers property name.
Finally, fixes a few typos.
Signed-off-by: Alexandre Belloni <alexandre.bell...@free-electrons.com>
---
.../devicetree/bindings/arm/atmel-adc.txt | 33 +++++++++++-----------
1 file changed, 17 insertions(+), 16 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt
b/Documentation/devicetree/bindings/arm/atmel-adc.txt
index d1061469f63d..82061c7e4fea 100644
--- a/Documentation/devicetree/bindings/arm/atmel-adc.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt
@@ -5,32 +5,32 @@ Required properties:
<chip> can be "at91sam9260", "at91sam9g45" or "at91sam9x5"
- reg: Should contain ADC registers location and length
- interrupts: Should contain the IRQ line for the ADC
- - atmel,adc-channels-used: Bitmask of the channels muxed and enable for this
+ - atmel,adc-channels-used: Bitmask of the channels muxed and enabled for this
device
- atmel,adc-startup-time: Startup Time of the ADC in microseconds as
defined in the datasheet
- atmel,adc-vref: Reference voltage in millivolts for the conversions
- - atmel,adc-res: List of resolution in bits supported by the ADC. List size
+ - atmel,adc-res: List of resolutions in bits supported by the ADC. List size
must be two at least.
- atmel,adc-res-names: Contains one identifier string for each resolution
in atmel,adc-res property. "lowres" and "highres"
identifiers are required.
Optional properties:
- - atmel,adc-use-external: Boolean to enable of external triggers
+ - atmel,adc-use-external-triggers: Boolean to enable the external triggers
- atmel,adc-use-res: String corresponding to an identifier from
atmel,adc-res-names property. If not specified, the
highest
resolution will be used.
- atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion
- atmel,adc-sample-hold-time: Sample and Hold Time in microseconds
- - atmel,adc-ts-wires: Number of touch screen wires. Should be 4 or 5. If this
- value is set, then adc driver will enable touch screen
+ - atmel,adc-ts-wires: Number of touchscreen wires. Should be 4 or 5. If this
+ value is set, then the adc driver will enable
touchscreen
support.
- NOTE: when adc touch screen enabled, the adc hardware trigger will be
- disabled. Since touch screen will occupied the trigger register.
+ NOTE: when adc touchscreen is enabled, the adc hardware trigger will be
+ disabled. Since touchscreen will occupy the trigger register.
- atmel,adc-ts-pressure-threshold: a pressure threshold for touchscreen. It
- make touch detect more precision.
-
+ makes touch detection more precise.
+
Optional trigger Nodes:
- Required properties:
* trigger-name: Name of the trigger exposed to the user
@@ -41,40 +41,41 @@ Optional trigger Nodes:
Examples:
adc0: adc@fffb0000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
compatible = "atmel,at91sam9260-adc";
reg = <0xfffb0000 0x100>;
- interrupts = <20 4>;
- atmel,adc-channel-base = <0x30>;
+ interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
atmel,adc-channels-used = <0xff>;
- atmel,adc-drdy-mask = <0x10000>;
- atmel,adc-num-channels = <8>;
atmel,adc-startup-time = <40>;
- atmel,adc-status-register = <0x1c>;
- atmel,adc-trigger-register = <0x08>;
- atmel,adc-use-external;
+ atmel,adc-use-external-triggers;
atmel,adc-vref = <3300>;
atmel,adc-res = <8 10>;
atmel,adc-res-names = "lowres", "highres";
atmel,adc-use-res = "lowres";
trigger@0 {
+ reg = <0>;
trigger-name = "external-rising";
trigger-value = <0x1>;
trigger-external;
};
trigger@1 {
+ reg = <1>;
trigger-name = "external-falling";
trigger-value = <0x2>;
trigger-external;
};
trigger@2 {
+ reg = <2>;
trigger-name = "external-any";
trigger-value = <0x3>;
trigger-external;
};
trigger@3 {
+ reg = <3>;
trigger-name = "continuous";
trigger-value = <0x6>;
};
--
1.8.3.2
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