diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/gpio-keys.txt (renamed from Documentation/devicetree/bindings/gpio/gpio_keys.txt) | 0 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/input/st-keyscan.txt | 60 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/sun4i.txt | 20 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt | 27 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt | 42 |
5 files changed, 149 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_keys.txt b/Documentation/devicetree/bindings/input/gpio-keys.txt index 5c2c02140a62..5c2c02140a62 100644 --- a/Documentation/devicetree/bindings/gpio/gpio_keys.txt +++ b/Documentation/devicetree/bindings/input/gpio-keys.txt diff --git a/Documentation/devicetree/bindings/input/st-keyscan.txt b/Documentation/devicetree/bindings/input/st-keyscan.txt new file mode 100644 index 000000000000..51eb428e5c85 --- /dev/null +++ b/Documentation/devicetree/bindings/input/st-keyscan.txt @@ -0,0 +1,60 @@ +* ST Keyscan controller Device Tree bindings + +The ST keyscan controller Device Tree binding is based on the +matrix-keymap. + +Required properties: +- compatible: "st,sti-keyscan" + +- reg: Register base address and size of st-keyscan controller. + +- interrupts: Interrupt number for the st-keyscan controller. + +- clocks: Must contain one entry, for the module clock. + See ../clocks/clock-bindings.txt for details. + +- pinctrl: Should specify pin control groups used for this controller. + See ../pinctrl/pinctrl-bindings.txt for details. + +- linux,keymap: The keymap for keys as described in the binding document + devicetree/bindings/input/matrix-keymap.txt. + +- keypad,num-rows: Number of row lines connected to the keypad controller. + +- keypad,num-columns: Number of column lines connected to the keypad + controller. + +Optional property: +- st,debounce_us: Debouncing interval time in microseconds + +Example: + +keyscan: keyscan@fe4b0000 { + compatible = "st,sti-keyscan"; + reg = <0xfe4b0000 0x2000>; + interrupts = <GIC_SPI 212 IRQ_TYPE_NONE>; + clocks = <&CLK_SYSIN>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_keyscan>; + + keypad,num-rows = <4>; + keypad,num-columns = <4>; + st,debounce_us = <5000>; + + linux,keymap = < MATRIX_KEY(0x00, 0x00, KEY_F13) + MATRIX_KEY(0x00, 0x01, KEY_F9) + MATRIX_KEY(0x00, 0x02, KEY_F5) + MATRIX_KEY(0x00, 0x03, KEY_F1) + MATRIX_KEY(0x01, 0x00, KEY_F14) + MATRIX_KEY(0x01, 0x01, KEY_F10) + MATRIX_KEY(0x01, 0x02, KEY_F6) + MATRIX_KEY(0x01, 0x03, KEY_F2) + MATRIX_KEY(0x02, 0x00, KEY_F15) + MATRIX_KEY(0x02, 0x01, KEY_F11) + MATRIX_KEY(0x02, 0x02, KEY_F7) + MATRIX_KEY(0x02, 0x03, KEY_F3) + MATRIX_KEY(0x03, 0x00, KEY_F16) + MATRIX_KEY(0x03, 0x01, KEY_F12) + MATRIX_KEY(0x03, 0x02, KEY_F8) + MATRIX_KEY(0x03, 0x03, KEY_F4) >; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt new file mode 100644 index 000000000000..aef57791f40b --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt @@ -0,0 +1,20 @@ +sun4i resistive touchscreen controller +-------------------------------------- + +Required properties: + - compatible: "allwinner,sun4i-a10-ts" + - reg: mmio address range of the chip + - interrupts: interrupt to which the chip is connected + +Optional properties: + - allwinner,ts-attached: boolean indicating that an actual touchscreen is + attached to the controller + +Example: + + rtp: rtp@01c25000 { + compatible = "allwinner,sun4i-a10-ts"; + reg = <0x01c25000 0x100>; + interrupts = <29>; + allwinner,ts-attached; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt new file mode 100644 index 000000000000..d8e06163c54e --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt @@ -0,0 +1,27 @@ +General Touchscreen Properties: + +Optional properties for Touchscreens: + - touchscreen-size-x : horizontal resolution of touchscreen + (in pixels) + - touchscreen-size-y : vertical resolution of touchscreen + (in pixels) + - touchscreen-max-pressure : maximum reported pressure (arbitrary range + dependent on the controller) + - 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-fuzz-pressure : pressure noise value of the absolute input + device (arbitrary range dependent on the + controller) + - touchscreen-inverted-x : X axis is inverted (boolean) + - touchscreen-inverted-y : Y axis is inverted (boolean) + +Deprecated properties for Touchscreens: + - x-size : deprecated name for touchscreen-size-x + - y-size : deprecated name for touchscreen-size-y + - moving-threshold : deprecated name for a combination of + touchscreen-fuzz-x and touchscreen-fuzz-y + - contact-threshold : deprecated name for touchscreen-fuzz-pressure + - x-invert : deprecated name for touchscreen-inverted-x + - y-invert : deprecated name for touchscreen-inverted-y diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt new file mode 100644 index 000000000000..4b641c7bf1c2 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt @@ -0,0 +1,42 @@ +* Texas Instruments tsc2005 touchscreen controller + +Required properties: + - compatible : "ti,tsc2005" + - reg : SPI device address + - spi-max-frequency : Maximal SPI speed + - interrupts : IRQ specifier + - reset-gpios : GPIO specifier + - vio-supply : Regulator specifier + +Optional properties: + - ti,x-plate-ohms : integer, resistance of the touchscreen's X plates + in ohm (defaults to 280) + - ti,esd-recovery-timeout-ms : integer, if the touchscreen does not respond after + the configured time (in milli seconds), the driver + will reset it. This is disabled by default. + - properties defined in touchscreen.txt + +Example: + +&mcspi1 { + tsc2005@0 { + compatible = "ti,tsc2005"; + spi-max-frequency = <6000000>; + reg = <0>; + + vio-supply = <&vio>; + + reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* 104 */ + interrupts-extended = <&gpio4 4 IRQ_TYPE_EDGE_RISING>; /* 100 */ + + touchscreen-fuzz-x = <4>; + touchscreen-fuzz-y = <7>; + touchscreen-fuzz-pressure = <2>; + touchscreen-max-x = <4096>; + touchscreen-max-y = <4096>; + touchscreen-max-pressure = <2048>; + + ti,x-plate-ohms = <280>; + ti,esd-recovery-timeout-ms = <8000>; + }; +} |