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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-09-18 07:58:33 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-09-18 07:58:33 -0700
commit4ba25a496f62129a2ad8c2436ab2b402752dc66c (patch)
tree8abf41a79f293832a430a9609530c24cd365466c /Documentation/devicetree/bindings/input
parent390de835b61228abf6646f2b14530edca8d7512f (diff)
parent6e4664525b1db28f8c4e1130957f70a94c19213e (diff)
Merge tag 'v3.11' into next
Merge with mainline to bring in sync changes to cyttsp4 driver.
Diffstat (limited to 'Documentation/devicetree/bindings/input')
-rw-r--r--Documentation/devicetree/bindings/input/samsung-keypad.txt24
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt44
2 files changed, 49 insertions, 19 deletions
diff --git a/Documentation/devicetree/bindings/input/samsung-keypad.txt b/Documentation/devicetree/bindings/input/samsung-keypad.txt
index ce3e394c0e64..942d071baaa5 100644
--- a/Documentation/devicetree/bindings/input/samsung-keypad.txt
+++ b/Documentation/devicetree/bindings/input/samsung-keypad.txt
@@ -25,14 +25,6 @@ Required Board Specific Properties:
- samsung,keypad-num-columns: Number of column lines connected to the
keypad controller.
-- row-gpios: List of gpios used as row lines. The gpio specifier for
- this property depends on the gpio controller to which these row lines
- are connected.
-
-- col-gpios: List of gpios used as column lines. The gpio specifier for
- this property depends on the gpio controller to which these column
- lines are connected.
-
- Keys represented as child nodes: Each key connected to the keypad
controller is represented as a child node to the keypad controller
device node and should include the following properties.
@@ -41,6 +33,9 @@ Required Board Specific Properties:
- linux,code: the key-code to be reported when the key is pressed
and released.
+- pinctrl-0: Should specify pin control groups used for this controller.
+- pinctrl-names: Should contain only one value - "default".
+
Optional Properties specific to linux:
- linux,keypad-no-autorepeat: do no enable autorepeat feature.
- linux,keypad-wakeup: use any event on keypad as wakeup event.
@@ -56,17 +51,8 @@ Example:
linux,input-no-autorepeat;
linux,input-wakeup;
- row-gpios = <&gpx2 0 3 3 0
- &gpx2 1 3 3 0>;
-
- col-gpios = <&gpx1 0 3 0 0
- &gpx1 1 3 0 0
- &gpx1 2 3 0 0
- &gpx1 3 3 0 0
- &gpx1 4 3 0 0
- &gpx1 5 3 0 0
- &gpx1 6 3 0 0
- &gpx1 7 3 0 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&keypad_rows &keypad_columns>;
key_1 {
keypad,row = <0>;
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
new file mode 100644
index 000000000000..491c97b78384
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
@@ -0,0 +1,44 @@
+* TI - TSC ADC (Touschscreen and analog digital converter)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Required properties:
+- child "tsc"
+ ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen
+ support on the platform.
+ ti,x-plate-resistance: X plate resistance
+ ti,coordiante-readouts: The sequencer supports a total of 16
+ programmable steps each step is used to
+ read a single coordinate. A single
+ readout is enough but multiple reads can
+ increase the quality.
+ A value of 5 means, 5 reads for X, 5 for
+ Y and 2 for Z (always). This utilises 12
+ of the 16 software steps available. The
+ remaining 4 can be used by the ADC.
+ ti,wire-config: Different boards could have a different order for
+ connecting wires on touchscreen. We need to provide an
+ 8 bit number where in the 1st four bits represent the
+ analog lines and the next 4 bits represent positive/
+ negative terminal on that input line. Notations to
+ represent the input lines and terminals resoectively
+ is as follows:
+ AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
+ XP = 0, XN = 1, YP = 2, YN = 3.
+- child "adc"
+ ti,adc-channels: List of analog inputs available for ADC.
+ AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
+
+Example:
+ tscadc: tscadc@44e0d000 {
+ compatible = "ti,am3359-tscadc";
+ tsc {
+ ti,wires = <4>;
+ ti,x-plate-resistance = <200>;
+ ti,coordiante-readouts = <5>;
+ ti,wire-config = <0x00 0x11 0x22 0x33>;
+ };
+
+ adc {
+ ti,adc-channels = <4 5 6 7>;
+ };
+ }

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