[v3,1/2] Input: add STMicroelectronics FingerTip touchscreen driver

Commit Message

Andi Shyti March 27, 2017, 1:07 p.m. UTC

Add binding for the STMicroelectronics FingerTip (stmfts)
touchscreen driver.

Signed-off-by: Andi Shyti <[e-mail]>
Reviewed-by: Javier Martinez Canillas <[e-mail]>
---
 .../bindings/input/touchscreen/st,stmfts.txt       | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt

Comments

Andi Shyti March 27, 2017, 1:11 p.m. UTC | #1

Hi,

On Mon, Mar 27, 2017 at 10:07:42PM +0900, Andi Shyti wrote:
> Add binding for the STMicroelectronics FingerTip (stmfts)
> touchscreen driver.
> 
> Signed-off-by: Andi Shyti <[e-mail]>
> Reviewed-by: Javier Martinez Canillas <[e-mail]>

I'm sorry, I forgot to add:

Acked-by: Rob Herring <[e-mail]>

Andi
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Patch

diff --git a/Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt b/Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt
new file mode 100644
index 000000000000..9683595cd0f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt
@@ -0,0 +1,43 @@ 
+* ST-Microelectronics FingerTip touchscreen controller
+
+The ST-Microelectronics FingerTip device provides a basic touchscreen
+functionality. Along with it the user can enable the touchkey which can work as
+a basic HOME and BACK key for phones.
+
+The driver supports also hovering as an absolute single touch event with x, y, z
+coordinates.
+
+Required properties:
+- compatible		: must be "st,stmfts"
+- reg			: I2C slave address, (e.g. 0x49)
+- interrupt-parent	: the phandle to the interrupt controller which provides
+			  the interrupt
+- interrupts		: interrupt specification
+- avdd-supply		: analogic power supply
+- vdd-supply		: power supply
+- touchscreen-size-x	: see touchscreen.txt
+- touchscreen-size-y	: see touchscreen.txt
+
+Optional properties:
+- touch-key-connected	: specifies whether the touchkey feature is connected
+- ledvdd-supply		: power supply to the touch key leds
+
+Example:
+
+i2c@00000000 {
+
+	/* ... */
+
+	touchscreen@49 {
+		compatible = "st,stmfts";
+		reg = <0x49>;
+		interrupt-parent = <&gpa1>;
+		interrupts = <1 IRQ_TYPE_NONE>;
+		touchscreen-size-x = <1599>;
+		touchscreen-size-y = <2559>;
+		touch-key-connected;
+		avdd-supply = <&ldo30_reg>;
+		vdd-supply = <&ldo31_reg>;
+		ledvdd-supply = <&ldo33_reg>;
+	};
+};