From patchwork Fri Apr 14 23:38:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jiri Valek - 2N X-Patchwork-Id: 673518 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CBBD2C77B79 for ; Fri, 14 Apr 2023 23:38:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229629AbjDNXiy (ORCPT ); Fri, 14 Apr 2023 19:38:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbjDNXix (ORCPT ); Fri, 14 Apr 2023 19:38:53 -0400 Received: from smtp1.axis.com (smtp1.axis.com [195.60.68.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BA79526E; Fri, 14 Apr 2023 16:38:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1681515532; x=1713051532; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SpLMjeGM/opNypIBwbbL34Zq2CgvgZH99FHYABysyCM=; b=k7Nfc/x/6cRH72h9fg7JCb+jKF4vbeCGPsO/7eWfv6FTt0uw0aO4mgJI yoLZO3mF98guuvaEZRIOIJD7HoQElDo8ptaYzV37AmyeyJYhY5EtAGm41 Vgv0FIGZtlzsXHYnxB35sEPN0An6wninEJh14HSAZAcs6oQcCNj5TF1JQ FykzngC757S8BVPsaU9ahY6Dq8iha3DgBBc+O0z/x76kWQCAizS4I1Psl oOYRAjcoYEm+Fct5sBuvH04tKeDuWLgaV6/MrieeFsbXW4OjYG9CVsGJj IJCq+mmsr3e2mTCGRWu5hvjEF7WO6pqZA9SqQ3LhElqvGSQDvIIZ7n58H A==; From: Jiri Valek - 2N To: , CC: , , , , , Subject: [PATCH 1/2] dt-bindings: input: microchip,cap11xx: add advanced sensitivity settings Date: Sat, 15 Apr 2023 01:38:14 +0200 Message-ID: <20230414233815.4004526-2-jiriv@axis.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230414233815.4004526-1-jiriv@axis.com> References: <20230414233815.4004526-1-jiriv@axis.com> MIME-Version: 1.0 X-Originating-IP: [10.0.5.60] X-ClientProxiedBy: se-mail02w.axis.com (10.20.40.8) To se-mail01w.axis.com (10.20.40.7) Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Add support for advanced sensitivity settings and signal guard feature. Signed-off-by: Jiri Valek - 2N --- .../bindings/input/microchip,cap11xx.yaml | 64 ++++++++++++++++++- 1 file changed, 61 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml index 5fa625b5c5fb..08e28226a164 100644 --- a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml +++ b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml @@ -45,13 +45,13 @@ properties: Enables the Linux input system's autorepeat feature on the input device. linux,keycodes: - minItems: 6 - maxItems: 6 + minItems: 3 + maxItems: 8 description: | Specifies an array of numeric keycode values to be used for the channels. If this property is omitted, KEY_A, KEY_B, etc are used as defaults. - The array must have exactly six entries. + The number of entries must correspond to the number of channels. microchip,sensor-gain: $ref: /schemas/types.yaml#/definitions/uint32 @@ -70,6 +70,58 @@ properties: open drain. This property allows using the active high push-pull output. + microchip,sensitivity-delta-sense: + $ref: /schemas/types.yaml#/definitions/uint32 + default: 32 + enum: [1, 2, 4, 8, 16, 32, 64, 128] + description: | + Optional parameter. Controls the sensitivity multiplier of a touch detection. + At the more sensitive settings, touches are detected for a smaller delta + capacitance corresponding to a “lighter” touch. + + microchip,sensitivity-base-shift: + $ref: /schemas/types.yaml#/definitions/uint32 + default: 256 + enum: [1, 2, 4, 8, 16, 32, 64, 128, 256] + description: | + Optional parameter. Controls data scaling factor. + The higher the value of these bits, the larger the range and the lower + the resolution of the data presented. These settings will not affect + touch detection or sensitivity. + + microchip,signal-guard: + minItems: 3 + maxItems: 8 + enum: [0, 1] + default: 0 + description: | + Optional parameter supported only for CAP129x. + The signal guard isolates the signal from virtual grounds. + If enabled then the behavior of the channel is changed to signal guard. + The number of entries must correspond to the number of channels. + + microchip,input-treshold: + minItems: 3 + maxItems: 8 + minimum: 0 + maximum: 127 + default: 64 + description: | + Optional parameter. Specifies the delta threshold that is used to + determine if a touch has been detected. + The number of entries must correspond to the number of channels. + + microchip,calib-sensitivity: + minItems: 3 + maxItems: 8 + enum: [1, 2, 4] + default: 1 + description: | + Optional parameter supported only for CAP129x. Specifies an array of + numeric values that controls the gain used by the calibration routine to + enable sensor inputs to be more sensitive for proximity detection. + The number of entries must correspond to the number of channels. + patternProperties: "^led@[0-7]$": type: object @@ -122,6 +174,12 @@ examples: reg = <0x28>; autorepeat; microchip,sensor-gain = <2>; + microchip,sensitivity-delta-sense = <16>; + microchip,sensitivity-base-shift = <128>; + + microchip,signal-guard = <0>, <0>, <0>, <0>, <0>, <0>; + microchip,input-treshold = <21>, <18>, <46>, <46>, <46>, <21>; + microchip,calib-sensitivityj = <1>, <2>, <2>, <1>, <1>, <2>; linux,keycodes = <103>, /* KEY_UP */ <106>, /* KEY_RIGHT */