Input: remove duplicate ft6236 driver

The new(ish) ft6236 simply re-implements the M09 protocol of the
(much) older edt-ft5x06.c driver.

This commit removes this duplicate driver and adds the i2c ids and
dt compatible string to the edt-ft5x06.c driver to keep compatibility.

This commit also adds the standard touchscreen properties as optional
properties to the edt,ft5x06 binding, these were documented in the
focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

2 files changed, 8 insertions, 35 deletions

diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
index f99528da1b1d..6db22103e2dd 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
@@ -19,6 +19,7 @@ Required properties:
            or:  "edt,edt-ft5306"
            or:  "edt,edt-ft5406"
            or:  "edt,edt-ft5506"
+           or:  "focaltech,ft6236"
 
  - reg:         I2C slave address of the chip (0x38)
  - interrupt-parent: a phandle pointing to the interrupt controller
@@ -43,6 +44,13 @@ Optional properties:
 
  - offset:      allows setting the edge compensation in the range from
                 0 to 31.
+ - touchscreen-size-x      : See touchscreen.txt
+ - touchscreen-size-y      : See touchscreen.txt
+ - touchscreen-fuzz-x      : See touchscreen.txt
+ - touchscreen-fuzz-y      : See touchscreen.txt
+ - touchscreen-inverted-x  : See touchscreen.txt
+ - touchscreen-inverted-y  : See touchscreen.txt
+ - touchscreen-swapped-x-y : See touchscreen.txt
 
 Example:
         polytouch: edt-ft5x06@38 {
diff --git a/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt b/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
deleted file mode 100644
index 777521da3da5..000000000000
--- a/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-* FocalTech FT6236 I2C touchscreen controller
-
-Required properties:
- - compatible             : "focaltech,ft6236"
- - reg                    : I2C slave address of the chip (0x38)
- - interrupt-parent       : a phandle pointing to the interrupt controller
-                            serving the interrupt for this chip
- - interrupts             : interrupt specification for the touch controller
-                            interrupt
- - reset-gpios            : GPIO specification for the RSTN input
- - touchscreen-size-x     : horizontal resolution of touchscreen (in pixels)
- - touchscreen-size-y     : vertical resolution of touchscreen (in pixels)
-
-Optional properties:
- - touchscreen-fuzz-x     : horizontal noise value of the absolute input
-                            device (in pixels)
- - touchscreen-fuzz-y     : vertical noise value of the absolute input
-                            device (in pixels)
- - touchscreen-inverted-x : X axis is inverted (boolean)
- - touchscreen-inverted-y : Y axis is inverted (boolean)
- - touchscreen-swapped-x-y: X and Y axis are swapped (boolean)
-                            Swapping is done after inverting the axis
-
-Example:
-
-        ft6x06@38 {
-                compatible = "focaltech,ft6236";
-                reg = <0x38>;
-                interrupt-parent = <&gpio>;
-                interrupts = <23 2>;
-                touchscreen-size-x = <320>;
-                touchscreen-size-y = <480>;
-                touchscreen-inverted-x;
-                touchscreen-swapped-x-y;
-        };