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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-09-18 10:58:33 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-09-18 10:58:33 -0400
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:
25- samsung,keypad-num-columns: Number of column lines connected to the 25- samsung,keypad-num-columns: Number of column lines connected to the
26 keypad controller. 26 keypad controller.
27 27
28- row-gpios: List of gpios used as row lines. The gpio specifier for
29 this property depends on the gpio controller to which these row lines
30 are connected.
31
32- col-gpios: List of gpios used as column lines. The gpio specifier for
33 this property depends on the gpio controller to which these column
34 lines are connected.
35
36- Keys represented as child nodes: Each key connected to the keypad 28- Keys represented as child nodes: Each key connected to the keypad
37 controller is represented as a child node to the keypad controller 29 controller is represented as a child node to the keypad controller
38 device node and should include the following properties. 30 device node and should include the following properties.
@@ -41,6 +33,9 @@ Required Board Specific Properties:
41 - linux,code: the key-code to be reported when the key is pressed 33 - linux,code: the key-code to be reported when the key is pressed
42 and released. 34 and released.
43 35
36- pinctrl-0: Should specify pin control groups used for this controller.
37- pinctrl-names: Should contain only one value - "default".
38
44Optional Properties specific to linux: 39Optional Properties specific to linux:
45- linux,keypad-no-autorepeat: do no enable autorepeat feature. 40- linux,keypad-no-autorepeat: do no enable autorepeat feature.
46- linux,keypad-wakeup: use any event on keypad as wakeup event. 41- linux,keypad-wakeup: use any event on keypad as wakeup event.
@@ -56,17 +51,8 @@ Example:
56 linux,input-no-autorepeat; 51 linux,input-no-autorepeat;
57 linux,input-wakeup; 52 linux,input-wakeup;
58 53
59 row-gpios = <&gpx2 0 3 3 0 54 pinctrl-names = "default";
60 &gpx2 1 3 3 0>; 55 pinctrl-0 = <&keypad_rows &keypad_columns>;
61
62 col-gpios = <&gpx1 0 3 0 0
63 &gpx1 1 3 0 0
64 &gpx1 2 3 0 0
65 &gpx1 3 3 0 0
66 &gpx1 4 3 0 0
67 &gpx1 5 3 0 0
68 &gpx1 6 3 0 0
69 &gpx1 7 3 0 0>;
70 56
71 key_1 { 57 key_1 {
72 keypad,row = <0>; 58 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 @@
1* TI - TSC ADC (Touschscreen and analog digital converter)
2~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3
4Required properties:
5- child "tsc"
6 ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen
7 support on the platform.
8 ti,x-plate-resistance: X plate resistance
9 ti,coordiante-readouts: The sequencer supports a total of 16
10 programmable steps each step is used to
11 read a single coordinate. A single
12 readout is enough but multiple reads can
13 increase the quality.
14 A value of 5 means, 5 reads for X, 5 for
15 Y and 2 for Z (always). This utilises 12
16 of the 16 software steps available. The
17 remaining 4 can be used by the ADC.
18 ti,wire-config: Different boards could have a different order for
19 connecting wires on touchscreen. We need to provide an
20 8 bit number where in the 1st four bits represent the
21 analog lines and the next 4 bits represent positive/
22 negative terminal on that input line. Notations to
23 represent the input lines and terminals resoectively
24 is as follows:
25 AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
26 XP = 0, XN = 1, YP = 2, YN = 3.
27- child "adc"
28 ti,adc-channels: List of analog inputs available for ADC.
29 AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
30
31Example:
32 tscadc: tscadc@44e0d000 {
33 compatible = "ti,am3359-tscadc";
34 tsc {
35 ti,wires = <4>;
36 ti,x-plate-resistance = <200>;
37 ti,coordiante-readouts = <5>;
38 ti,wire-config = <0x00 0x11 0x22 0x33>;
39 };
40
41 adc {
42 ti,adc-channels = <4 5 6 7>;
43 };
44 }