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| author | Sasha Finkelstein <fnkl.kernel@gmail.com> | 2025-02-19 20:24:38 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2025-02-20 00:56:37 +0300 |
| commit | ed872cea144c805e5ab43207830243db7703c0ac (patch) | |
| tree | 49beb09bba8d39b4da14ffed14b67a50ba018132 | |
| parent | a7550ff59edfc768a8600c1e5c24c304208696a5 (diff) | |
| download | linux-ed872cea144c805e5ab43207830243db7703c0ac.tar.xz | |
dt-bindings: input: touchscreen: Add Z2 controller
Add bindings for touchscreen controllers attached using the Z2 protocol.
Those are present in most Apple devices.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
Link: https://lore.kernel.org/r/20250217-z2-v6-1-c2115d6e5a8f@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml b/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml new file mode 100644 index 000000000000..402ca6bffd34 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/touchscreen/apple,z2-multitouch.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple touchscreens attached using the Z2 protocol + +maintainers: + - Sasha Finkelstein <fnkl.kernel@gmail.com> + +description: A series of touschscreen controllers used in Apple products + +allOf: + - $ref: touchscreen.yaml# + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + enum: + - apple,j293-touchbar + - apple,j493-touchbar + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + firmware-name: + maxItems: 1 + + apple,z2-cal-blob: + $ref: /schemas/types.yaml#/definitions/uint8-array + maxItems: 4096 + description: + Calibration blob supplied by the bootloader + +required: + - compatible + - interrupts + - reset-gpios + - firmware-name + - touchscreen-size-x + - touchscreen-size-y + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + spi { + #address-cells = <1>; + #size-cells = <0>; + + touchscreen@0 { + compatible = "apple,j293-touchbar"; + reg = <0>; + spi-max-frequency = <11500000>; + reset-gpios = <&pinctrl_ap 139 GPIO_ACTIVE_LOW>; + interrupts-extended = <&pinctrl_ap 194 IRQ_TYPE_EDGE_FALLING>; + firmware-name = "apple/dfrmtfw-j293.bin"; + touchscreen-size-x = <23045>; + touchscreen-size-y = <640>; + }; + }; + +... |