On Sun, Apr 11, 2021 at 01:48:03PM +0200, Giulio Benetti wrote: > This adds device tree bindings for the Hycon HY46XX touchscreen series. > > Signed-off-by: Giulio Benetti <giulio.bene...@benettiengineering.com> > --- > V1->V2: > As suggested by Rob Herring: > * fixed $id: address > * added "hycon," in front of every custom property > * changed all possible property to boolean type > * removed proximity-sensor-switch property since it's not handled in driver > V2->V3: > As suggested by Jonathan Neuschäfer: > * fixed some typo > * fixed description indentation > * improved boolean properties descriptions > * improved hycon,report-speed description > V3->V4: > * fixed binding compatible string in example as suggested by Jonathan > Neuschäfer > V4->V5: > As suggested by Rob Herring: > * drop hycon- prefix from compatible > * use Hertz unit suffix for hycon,report-speed instead of u32
hycon,report-speed-hz > * set hycon,report-speed minimum to 1Hz, 0Hz make controller to do nothing > * change hycon,power-noise-enable property name to hycon,noise-filter-enable > * improve hycon,filter-data property description > * use generic touchscreen node name in example > --- > .../input/touchscreen/hycon,hy46xx.yaml | 119 ++++++++++++++++++ > MAINTAINERS | 6 + > 2 files changed, 125 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml > > diff --git > a/Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml > b/Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml > new file mode 100644 > index 000000000000..ae792e3716ff > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml > @@ -0,0 +1,119 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/input/touchscreen/hycon,hy46xx.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Hycon HY46XX series touchscreen controller bindings > + > +description: | > + There are 6 variants of the chip for various touch panel sizes and cover > lens material > + Glass: 0.3mm--4.0mm > + PET/PMMA: 0.2mm--2.0mm > + HY4613(B)-N048 < 6" > + HY4614(B)-N068 7" .. 10.1" > + HY4621-NS32 < 5" > + HY4623-NS48 5.1" .. 7" > + Glass: 0.3mm--8.0mm > + PET/PMMA: 0.2mm--4.0mm > + HY4633(B)-N048 < 6" > + HY4635(B)-N048 < 7" .. 10.1" > + > +maintainers: > + - Giulio Benetti <giulio.bene...@benettiengineering.com> > + > +allOf: > + - $ref: touchscreen.yaml# > + > +properties: > + compatible: > + enum: > + - hycon,hy4613 > + - hycon,hy4614 > + - hycon,hy4621 > + - hycon,hy4623 > + - hycon,hy4633 > + - hycon,hy4635 > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + reset-gpios: > + maxItems: 1 > + > + vcc-supply: true > + > + hycon,threshold: > + description: Allows setting the sensitivity in the range from 0 to 255. > + $ref: /schemas/types.yaml#/definitions/uint32 > + minimum: 0 > + maximum: 255 > + > + hycon,glove-enable: > + type: boolean > + description: Allows enabling glove setting. > + > + hycon,report-speed: > + description: Allows setting the report speed in Hertz. > + minimum: 1 > + maximum: 255 > + > + hycon,noise-filter-enable: > + type: boolean > + description: Allows enabling power noise filter. > + > + hycon,filter-data: > + description: Allows setting how many samples throw before reporting touch > + in the range from 0 to 5. > + $ref: /schemas/types.yaml#/definitions/uint32 > + minimum: 0 > + maximum: 5 > + > + hycon,gain: > + description: Allows setting the sensitivity distance in the range from 0 > to 5. > + $ref: /schemas/types.yaml#/definitions/uint32 > + minimum: 0 > + maximum: 5 > + > + hycon,edge-offset: > + description: Allows setting the edge compensation in the range from 0 to > 16. > + $ref: /schemas/types.yaml#/definitions/uint32 > + minimum: 0 > + maximum: 16 > + > + touchscreen-size-x: true > + touchscreen-size-y: true > + touchscreen-fuzz-x: true > + touchscreen-fuzz-y: true > + touchscreen-inverted-x: true > + touchscreen-inverted-y: true > + touchscreen-swapped-x-y: true > + interrupt-controller: true > + > +additionalProperties: false > + > +required: > + - compatible > + - reg > + - interrupts > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + touchscreen@1c { > + compatible = "hycon,hy4633"; > + reg = <0x1c>; > + interrupt-parent = <&gpio2>; > + interrupts = <5 IRQ_TYPE_EDGE_FALLING>; > + reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>; > + }; > + }; > + > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index 7fdc513392f4..18a50942c019 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -8250,6 +8250,12 @@ S: Maintained > F: mm/hwpoison-inject.c > F: mm/memory-failure.c > > +HYCON HY46XX TOUCHSCREEN SUPPORT > +M: Giulio Benetti <giulio.bene...@benettiengineering.com> > +L: linux-in...@vger.kernel.org > +S: Maintained > +F: Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml > + > HYGON PROCESSOR SUPPORT > M: Pu Wen <pu...@hygon.cn> > L: linux-kernel@vger.kernel.org > -- > 2.25.1 >
