diff mbox

[PATCHv5,2/6] dt-bindings: mfd: da9052: support TSI as ADC

Message ID 20170703084003.31184-3-sebastian.reichel@collabora.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Sebastian Reichel July 3, 2017, 8:39 a.m. UTC
DA9052 allows using the touchscreen input pins as general purpose
analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y-
and providing a reference voltage at TSIREF pin.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
---
 Documentation/devicetree/bindings/mfd/da9052-i2c.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Rob Herring (Arm) July 7, 2017, 3:52 p.m. UTC | #1
On Mon, Jul 03, 2017 at 10:39:59AM +0200, Sebastian Reichel wrote:
> DA9052 allows using the touchscreen input pins as general purpose
> analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y-
> and providing a reference voltage at TSIREF pin.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
> ---
>  Documentation/devicetree/bindings/mfd/da9052-i2c.txt | 8 ++++++++
>  1 file changed, 8 insertions(+)

Acked-by: Rob Herring <robh@kernel.org>
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Lee Jones July 17, 2017, 2:31 p.m. UTC | #2
On Mon, 03 Jul 2017, Sebastian Reichel wrote:

> DA9052 allows using the touchscreen input pins as general purpose
> analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y-
> and providing a reference voltage at TSIREF pin.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
> ---
>  Documentation/devicetree/bindings/mfd/da9052-i2c.txt | 8 ++++++++
>  1 file changed, 8 insertions(+)

Applied, thanks.

> diff --git a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
> index 9554292dc6cb..57fa74e65664 100644
> --- a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
> +++ b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
> @@ -4,6 +4,14 @@ Required properties:
>  - compatible : Should be "dlg,da9052", "dlg,da9053-aa",
>  			 "dlg,da9053-ab", or "dlg,da9053-bb"
>  
> +Optional properties:
> +- dlg,tsi-as-adc : Boolean, if set the X+, X-, Y+, Y- touchscreen
> +                    input lines are used as general purpose analogue
> +					input.
> +- tsiref-supply: Phandle to the regulator, which provides the reference
> +                 voltage for the TSIREF pin. Must be provided when the
> +			     touchscreen pins are used for ADC purposes.
> +
>  Sub-nodes:
>  - regulators : Contain the regulator nodes. The DA9052/53 regulators are
>    bound using their names as listed below:
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
index 9554292dc6cb..57fa74e65664 100644
--- a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
+++ b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
@@ -4,6 +4,14 @@  Required properties:
 - compatible : Should be "dlg,da9052", "dlg,da9053-aa",
 			 "dlg,da9053-ab", or "dlg,da9053-bb"
 
+Optional properties:
+- dlg,tsi-as-adc : Boolean, if set the X+, X-, Y+, Y- touchscreen
+                    input lines are used as general purpose analogue
+					input.
+- tsiref-supply: Phandle to the regulator, which provides the reference
+                 voltage for the TSIREF pin. Must be provided when the
+			     touchscreen pins are used for ADC purposes.
+
 Sub-nodes:
 - regulators : Contain the regulator nodes. The DA9052/53 regulators are
   bound using their names as listed below: