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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-19 02:48:07 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-19 02:48:07 +0300 |
commit | 08b5fa819970c318e58ab638f497633c25971813 (patch) | |
tree | a08793025bd43f5efa99ca67f71ea5a50687b41c /Documentation/devicetree/bindings/input/touchscreen | |
parent | 7f02e1ce4a13edf295fcedbc663a8ca69bc1ff6e (diff) | |
parent | 13fe7056bebb4015c6231a07a1be4d3aebbfe979 (diff) | |
download | linux-08b5fa819970c318e58ab638f497633c25971813.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for Rohm BU21029 touch controller
- new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free
- updates to Atmel, eeti. pxrc and iforce drivers
- assorted driver cleanups and fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
MAINTAINERS: Add PhoenixRC Flight Controller Adapter
Input: do not use WARN() in input_alloc_absinfo()
Input: mark expected switch fall-throughs
Input: raydium_i2c_ts - use true and false for boolean values
Input: evdev - switch to bitmap API
Input: gpio-keys - switch to bitmap_zalloc()
Input: elan_i2c_smbus - cast sizeof to int for comparison
bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
md: Avoid namespace collision with bitmap API
dm: Avoid namespace collision with bitmap API
Input: pm8941-pwrkey - add resin entry
Input: pm8941-pwrkey - abstract register offsets and event code
Input: iforce - reorganize joystick configuration lists
Input: atmel_mxt_ts - move completion to after config crc is updated
Input: atmel_mxt_ts - don't report zero pressure from T9
Input: atmel_mxt_ts - zero terminate config firmware file
Input: atmel_mxt_ts - refactor config update code to add context struct
Input: atmel_mxt_ts - config CRC may start at T71
Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
...
Diffstat (limited to 'Documentation/devicetree/bindings/input/touchscreen')
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/bu21029.txt | 35 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/eeti.txt | 30 |
2 files changed, 65 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/bu21029.txt b/Documentation/devicetree/bindings/input/touchscreen/bu21029.txt new file mode 100644 index 000000000000..8daa0e868a8f --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/bu21029.txt @@ -0,0 +1,35 @@ +* Rohm BU21029 Touch Screen Controller + +Required properties: + - compatible : must be "rohm,bu21029" + - reg : i2c device address of the chip (0x40 or 0x41) + - interrupt-parent : the phandle for the gpio controller + - interrupts : (gpio) interrupt to which the chip is connected + - rohm,x-plate-ohms : x-plate resistance in Ohm + +Optional properties: + - reset-gpios : gpio pin to reset the chip (active low) + - touchscreen-size-x : horizontal resolution of touchscreen (in pixels) + - touchscreen-size-y : vertical resolution of touchscreen (in pixels) + - touchscreen-max-pressure: maximum pressure value + - vdd-supply : power supply for the controller + +Example: + + &i2c1 { + /* ... */ + + bu21029: bu21029@40 { + compatible = "rohm,bu21029"; + reg = <0x40>; + interrupt-parent = <&gpio1>; + interrupts = <4 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&gpio6 16 GPIO_ACTIVE_LOW>; + rohm,x-plate-ohms = <600>; + touchscreen-size-x = <800>; + touchscreen-size-y = <480>; + touchscreen-max-pressure = <4095>; + }; + + /* ... */ + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/eeti.txt b/Documentation/devicetree/bindings/input/touchscreen/eeti.txt new file mode 100644 index 000000000000..32b3712c916e --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/eeti.txt @@ -0,0 +1,30 @@ +Bindings for EETI touchscreen controller + +Required properties: +- compatible: should be "eeti,exc3000-i2c" +- reg: I2C address of the chip. Should be set to <0xa> +- interrupts: interrupt to which the chip is connected + +Optional properties: +- attn-gpios: A handle to a GPIO to check whether interrupt is still + latched. This is necessary for platforms that lack + support for level-triggered IRQs. + +The following optional properties described in touchscreen.txt are +also supported: + +- touchscreen-inverted-x +- touchscreen-inverted-y +- touchscreen-swapped-x-y + +Example: + +i2c-master { + touchscreen@a { + compatible = "eeti,exc3000-i2c"; + reg = <0xa>; + interrupt-parent = <&gpio>; + interrupts = <123 IRQ_TYPE_EDGE_RISING>; + attn-gpios = <&gpio 123 GPIO_ACTIVE_HIGH>; + }; +}; |