Add the HX83102j touchscreen device tree bindings documents. HX83102j is a Himax TDDI touchscreen controller. It's power sequence should be bound with a lcm driver, thus it needs to be a panel follower. Others are the same as normal SPI touchscreen controller. Signed-off-by: Allen_Lin <allencl_lin@xxxxxxxxxxx> --- .../input/touchscreen/himax,hx83102j.yaml | 73 +++++++++++++++++++ MAINTAINERS | 6 ++ 2 files changed, 79 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/himax,hx83102j.yaml diff --git a/Documentation/devicetree/bindings/input/touchscreen/himax,hx83102j.yaml b/Documentation/devicetree/bindings/input/touchscreen/himax,hx83102j.yaml new file mode 100644 index 000000000000..6c0a1ebf8d91 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/himax,hx83102j.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/touchscreen/himax,hx83102j.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Himax hx83102j touchscreen + +maintainers: + - Allen Lin <allencl_lin@xxxxxxxxxxx> + +description: + This Himax hx83102j touchscreen uses the spi protocol. + +allOf: + - $ref: /schemas/input/touchscreen/touchscreen.yaml# + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + const: himax,hx83102j + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + spi-cpha: true + + spi-cpol: true + + spi-max-frequency: true + + panel: true + + himax,pid: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + PID for HID device, used to load correct firmware. + +required: + - compatible + - reg + - interrupts + - reset-gpios + - panel + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + ap_ts: touchscreen@0 { + compatible = "himax,hx83102j"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&touch_int0 &touch_reset>; + reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; + spi-cpha; + spi-cpol; + interrupt-parent = <&gpio1>; + interrupts = <7 IRQ_TYPE_LEVEL_LOW>; + panel = <&panel>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 43b39956694a..aa51c60fd66d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9669,6 +9669,12 @@ L: linux-kernel@xxxxxxxxxxxxxxx S: Maintained F: drivers/misc/hisi_hikey_usb.c +HIMAX HID HX83102J TOUCHSCREEN +M: Allen Lin <allencl_lin@xxxxxxxxxxx> +L: linux-input@xxxxxxxxxxxxxxx +S: Maintained +F: Documentation/devicetree/bindings/input/touchscreen/himax,hx83102j.yaml + HIMAX HX83112B TOUCHSCREEN SUPPORT M: Job Noorman <job@xxxxxxxxxxxx> L: linux-input@xxxxxxxxxxxxxxx -- 2.34.1
