diff mbox series

[v2,3/4] dt-bindings: touchscreen: resistive-adc-touch: add support for z1 and z2 channels

Message ID 20210518125748.26823-4-o.rempel@pengutronix.de (mailing list archive)
State Superseded
Headers show
Series add z1 and z2 channels support for resistive-adc-touch driver | expand

Commit Message

Oleksij Rempel May 18, 2021, 12:57 p.m. UTC
For pressure calculation based on plates resistance we need some additional
properties:
- z1 and z2 channels with additional measurements between plates
- actual resistance of the touchscreen. Currently we use only
  X-resistance.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 .../bindings/input/touchscreen/resistive-adc-touch.yaml  | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Rob Herring May 18, 2021, 6:15 p.m. UTC | #1
On Tue, 18 May 2021 14:57:47 +0200, Oleksij Rempel wrote:
> For pressure calculation based on plates resistance we need some additional
> properties:
> - z1 and z2 channels with additional measurements between plates
> - actual resistance of the touchscreen. Currently we use only
>   X-resistance.
> 
> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
> ---
>  .../bindings/input/touchscreen/resistive-adc-touch.yaml  | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.example.dt.yaml: resistive_touch: io-channels: [[4294967295, 1], [4294967295, 2], [4294967295, 3], [4294967295, 4]] is too long
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.example.dt.yaml: resistive_touch: io-channels: Additional items are not allowed ([4294967295, 4] was unexpected)
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.example.dt.yaml: resistive_touch: io-channel-names:2: 'pressure' was expected
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.example.dt.yaml: resistive_touch: io-channel-names: ['x', 'y', 'z1', 'z2'] is too long
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.example.dt.yaml: resistive_touch: io-channel-names: Additional items are not allowed ('z2' was unexpected)
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml

See https://patchwork.ozlabs.org/patch/1480237

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
index 53df21a6589e..538c3b1ef1e1 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
@@ -43,6 +43,7 @@  properties:
   touchscreen-inverted-y: true
   touchscreen-swapped-x-y: true
   touchscreen-min-pressure: true
+  touchscreen-x-plate-ohms: true
 
 additionalProperties: false
 
@@ -59,3 +60,11 @@  examples:
       io-channels = <&adc 24>, <&adc 25>, <&adc 26>;
       io-channel-names = "x", "y", "pressure";
     };
+  - |
+    resistive_touch {
+      compatible = "resistive-adc-touch";
+      touchscreen-min-pressure = <50000>;
+      io-channels = <&adc 1>, <&adc 2>, <&adc 3>, <&adc 4>;
+      io-channel-names = "x", "y", "z1", "z2";
+      touchscreen-x-plate-ohms = <800>;
+    };