From patchwork Wed Jul 20 14:48:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mattijs Korpershoek X-Patchwork-Id: 12924091 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 445DECCA483 for ; Wed, 20 Jul 2022 14:49:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Wh8FwmUH2GZ0kuEiQMR/uWeYuGTDbKEVk0sqWGDFSBM=; b=kQ8PTH+stU1p0Y rpDnrbCLJhzRUg0VS+p4wPksLjIUR9rEx1CKIf6fm3g8yb8EazHI1PStRpMRTXHONTjrdgDji+sf+ O340tvuxMR9u8bIcYBOTKDxk26N+HPN6lpe51Zz4yJfyP6srGdIaWgILxL6rXaUXgejZcqi9O+DvJ H05oT6gbY/rnpGsot+oTMEr3xypu0LP0gagaH97+gvH6Wndi4ugX11EOMCRHp9uo8U9ib9ViI0tmG LbfpQxacqf26Zf7FVJ7jBmFXnislhLiwyk7xBpmyk1yGGzhD4zWdyQhrq6bfRXsd00buqVEJGB2RD kEhnds8ROLIjmPeTyVOQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oEB0L-0074nd-EE; Wed, 20 Jul 2022 14:48:49 +0000 Received: from mail-wr1-x436.google.com ([2a00:1450:4864:20::436]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oEB0F-0074hE-Dh for linux-arm-kernel@lists.infradead.org; Wed, 20 Jul 2022 14:48:46 +0000 Received: by mail-wr1-x436.google.com with SMTP id bv24so2588964wrb.3 for ; Wed, 20 Jul 2022 07:48:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:date:subject:mime-version:content-transfer-encoding:message-id :references:in-reply-to:to:cc; bh=EOTw2SZsHwugM+Ez0nEALoToqSbMZWPKVYP438H1mxU=; b=oMm7LoJwBASOpcAnoe5ZW0VcoBtpNp4qdQXkxDMqfsYACtq2XOkYP+zDZPKLL4wMBw YgIqj4c9bDXecsVxFerVyCof9sXAssTSpDgeyJzMUqvcp5rJryAbqDSHlATe3jt96iHG WDtXCJY7Y6NcZXZsGo3/Pww8583CYWbnViwflztE1ocPMbOBgWan5EX/aj1cCeoZuy9i 9faahOs5YUZNPf85kg/MwQEMmex/wyjlyUCRmxo4MPNf1qV7Ep+U/pgIAQiOYRiTGjQC ZBxpaNtME1cHVV7UMwlhbx1u60srMx9Fp1zRqRjrcLpKx1kk1sNzoYkkn7iaHCbpVNRl 3ihA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:date:subject:mime-version :content-transfer-encoding:message-id:references:in-reply-to:to:cc; bh=EOTw2SZsHwugM+Ez0nEALoToqSbMZWPKVYP438H1mxU=; b=pMpy6dF5kTmLYSJHXe58rPLoLMApDhd5SVZ/hEt0zZOqG/X0XW5/IOuZL21hhRrI7g WiuVuSX3SiLHK5DkccgNCDDf9NBbbevz1AY/owPzRBpKCv6q5E4Kw8NaokXuyd9gs5dH iGkDPKjckFvxDSKavZleAO8pbzwi+lqAJJjSMrcfgsur5KX7xSF8QLi76grXfdV/aevC Iz0iLLXrBWXv9sC62kbf1m8XuPURaYustnLy2YoRJl/vdlGyasYJYgTeQ0hZIRCUBiYS H3MQWlttB1H8Wzcz6hUObqMWVjE46Ttdkofna/t7dgHQxq4aj2sJj2ewNLftzGK7DA1r +Kvw== X-Gm-Message-State: AJIora9P0+WcLhG81eM4KezcWrFzWg3GyjpsSDMYxHYvyLi8Zb/KuYl4 A+clqFe3TQmbOWqCIfc5ipdWFg== X-Google-Smtp-Source: AGRyM1vk48vhBISpLi0CcOr9kKDWKs0EqlrNQDdVJdrT6hsTP+HmSTbFh6RCGQZsl1ZBg+vkqVqr/A== X-Received: by 2002:a05:6000:1789:b0:21d:7279:f455 with SMTP id e9-20020a056000178900b0021d7279f455mr30432550wrg.542.1658328521299; Wed, 20 Jul 2022 07:48:41 -0700 (PDT) Received: from [127.0.1.1] ([2a01:cb19:85e6:1900:c639:22f8:bed9:44dd]) by smtp.gmail.com with ESMTPSA id f8-20020a05600c4e8800b003a31673515bsm3321121wmq.7.2022.07.20.07.48.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jul 2022 07:48:41 -0700 (PDT) From: Mattijs Korpershoek Date: Wed, 20 Jul 2022 16:48:39 +0200 Subject: [PATCH v1 3/6] dt-bindings: mediatek,mt6779-keypad: add mediatek,double-keys MIME-Version: 1.0 Message-Id: <20220720-mt8183-keypad-v1-3-ef9fc29dbff4@baylibre.com> References: <20220720-mt8183-keypad-v1-0-ef9fc29dbff4@baylibre.com> In-Reply-To: <20220720-mt8183-keypad-v1-0-ef9fc29dbff4@baylibre.com> To: Rob Herring , Krzysztof Kozlowski , Mattijs Korpershoek , Dmitry Torokhov , Matthias Brugger Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Fabien Parent , devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, Fabien Parent , linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.10.0-dev-54fef X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220720_074843_596596_ABFF4CFE X-CRM114-Status: UNSURE ( 8.18 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Currently, only single key detection is supported (by default) Add an optional property, mediatek,double-keys to support double key detection. Double key support exists to minimize cost, since it reduces the number of pins required for physical keys. Signed-off-by: Mattijs Korpershoek diff --git a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml index ca8ae40a73f7..03c9555849e5 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,double-keys: + description: | + use double key matrix instead of single key + when set, each (row,column) is a group that can detect 2 keys + type: boolean + required: - compatible - reg