From: Mattijs Korpershoek <mkorpershoek@baylibre.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linux-arm-kernel@lists.infradead.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Fabien Parent <fparent@baylibre.com>,
linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-input@vger.kernel.org,
Fabien Parent <parent.f@gmail.com>
Subject: [PATCH v2 3/7] dt-bindings: mediatek,mt6779-keypad: add mediatek,keys-per-group
Date: Tue, 26 Jul 2022 14:56:08 +0200 [thread overview]
Message-ID: <20220720-mt8183-keypad-v2-3-6d42c357cb76@baylibre.com> (raw)
In-Reply-To: <20220720-mt8183-keypad-v2-0-6d42c357cb76@baylibre.com>
The MediaTek keypad has 2 modes of detecting key events:
* single key: each (row, column) can detect one key
* double key: each (row, column) is a group of 2 keys
With double key, two keys are physically wired to one (row, column) pin.
These keys are in the same "group".
Multiple keys in the same group reduces the number of pins which
minimizes cost.
Add a keys-per-group property to describe this.
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
diff --git a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
index ca8ae40a73f7..387d0448ff77 100644
--- a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
+++ b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
@@ -49,6 +49,12 @@ properties:
maximum: 256
default: 16
+ mediatek,keys-per-group:
+ description: each (row, column) group has multiple keys
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 1
+ maximum: 2
+
required:
- compatible
- reg
--
b4 0.10.0-dev-78725
next prev parent reply other threads:[~2022-07-26 12:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-26 12:56 [PATCH v2 0/7] Input: mt6779-keypad - double keys support Mattijs Korpershoek
2022-07-26 12:56 ` [PATCH v2 1/7] MAINTAINERS: input: add mattijs for mt6779-keypad Mattijs Korpershoek
2022-07-26 12:56 ` [PATCH v2 2/7] dt-bindings: mediatek,mt6779-keypad: use unevaluatedProperties Mattijs Korpershoek
2022-07-27 10:27 ` Krzysztof Kozlowski
2022-07-26 12:56 ` Mattijs Korpershoek [this message]
2022-07-27 10:27 ` [PATCH v2 3/7] dt-bindings: mediatek,mt6779-keypad: add mediatek,keys-per-group Krzysztof Kozlowski
2022-07-26 12:56 ` [PATCH v2 4/7] Input: mt6779-keypad - prepare double keys support with calc_row_col Mattijs Korpershoek
2022-07-27 7:34 ` AngeloGioacchino Del Regno
2022-07-26 12:56 ` [PATCH v2 5/7] Input: mt6779-keypad - support double keys matrix Mattijs Korpershoek
2022-07-27 7:34 ` AngeloGioacchino Del Regno
2022-07-26 12:56 ` [PATCH v2 6/7] arm64: dts: mediatek: mt8183: add keyboard node Mattijs Korpershoek
2022-07-26 12:56 ` [PATCH v2 7/7] arm64: dts: mediatek: mt8183-pumpkin: add keypad support Mattijs Korpershoek
2022-08-10 22:53 ` [PATCH v2 0/7] Input: mt6779-keypad - double keys support Dmitry Torokhov
2022-08-24 13:55 ` Matthias Brugger
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