| Message ID | 20230609063615.758676-2-yangcong5@huaqin.corp-partner.google.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add ili9882t bindings and timing | expand |
Hi,Krzysztof On Sat, Jun 10, 2023 at 12:01 AM Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > > On 09/06/2023 08:36, Cong Yang wrote: > > The ili9882t touch screen chip same as Elan eKTH6915 controller > > has a reset gpio. The difference is that ili9882t needs to use > > vccio-supply instead of vcc33-supply. Doug's series[1] allows panels > > and touchscreens to power on/off together, let's add a phandle for this. > > > > [1]: https://lore.kernel.org/r/20230607215224.2067679-1-dianders@chromium.org > > > > Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com> > > > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > > If there is going to be new version, then: > A nit, subject: drop second/last, redundant "bindings for". The > "dt-bindings" prefix is already stating that these are bindings. As Doug said,makes sense to land if the panel follower patch series [1] lands. If Doug's series[1] land, i will update this and commit message link in V6. Thank you. > > > --- > > This is an automated instruction, just in case, because many review tags > are being ignored. If you do not know the process, here is a short > explanation: > > Please add Acked-by/Reviewed-by/Tested-by tags when posting new > versions, under or above your Signed-off-by tag. Tools like b4 can help > here. However, there's no need to repost patches *only* to add the tags. > The upstream maintainer will do that for acks received on the version > they apply. > > https://elixir.bootlin.com/linux/v5.17/source/Documentation/process/submitting-patches.rst#L540 > > Best regards, > Krzysztof >
diff --git a/Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml b/Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml new file mode 100644 index 000000000000..c5d9e0e919f9 --- /dev/null +++ b/Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/ilitek,ili9882t.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ilitek ili9882t touchscreen controller + +maintainers: + - Cong Yang <yangcong5@huaqin.corp-partner.google.com> + +description: + Supports the Ilitek ili9882t touchscreen controller. + This touchscreen controller uses the i2c-hid protocol with a reset GPIO. + +allOf: + - $ref: /schemas/input/touchscreen/touchscreen.yaml# + +properties: + compatible: + const: ilitek,ili9882t + + reg: + const: 0x41 + + interrupts: + maxItems: 1 + + panel: true + + reset-gpios: + maxItems: 1 + description: Reset GPIO. + + vccio-supply: + description: The 1.8V supply to the touchscreen. + +required: + - compatible + - reg + - interrupts + - panel + - vccio-supply + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + touchscreen: touchscreen@41 { + compatible = "ilitek,ili9882t"; + reg = <0x41>; + + interrupt-parent = <&pio>; + interrupts = <12 IRQ_TYPE_LEVEL_LOW>; + + panel = <&panel>; + reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>; + vccio-supply = <&mt6366_vio18_reg>; + }; + };
The ili9882t touch screen chip same as Elan eKTH6915 controller has a reset gpio. The difference is that ili9882t needs to use vccio-supply instead of vcc33-supply. Doug's series[1] allows panels and touchscreens to power on/off together, let's add a phandle for this. [1]: https://lore.kernel.org/r/20230607215224.2067679-1-dianders@chromium.org Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com> --- .../bindings/input/ilitek,ili9882t.yaml | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml