From mboxrd@z Thu Jan 1 00:00:00 1970 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 9AC6BC43217 for ; Fri, 18 Nov 2022 23:56:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235939AbiKRX4T (ORCPT ); Fri, 18 Nov 2022 18:56:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57268 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236982AbiKRXzA (ORCPT ); Fri, 18 Nov 2022 18:55:00 -0500 Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51396BE84B; Fri, 18 Nov 2022 15:28:02 -0800 (PST) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id BCE6C5C0452; Fri, 18 Nov 2022 18:28:01 -0500 (EST) Received: from imap43 ([10.202.2.93]) by compute2.internal (MEProxy); Fri, 18 Nov 2022 18:28:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alistair23.me; h=cc:cc:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm1; t=1668814081; x=1668900481; bh=Em Q0dI/Gjx0666r9UJYHPwl0Uf9CBk7ouATv1q7n5/I=; b=hBYuZJsLbPJkH0T13B dQlwf74qszBFR7+i+3xGPK+q8efi4WSCtF+rfsikE6W4LuRpfa3I0b92mo4JHYlH IL5jfgfq1oPz577dxNXW+4Zb2AQYso6xG23qADFq8Z9IOK1tXPS/s106nBdRPc+S imIjPE1IZrdBR+c12yqMrDXTosA/xOUQw1HoGWE4m4EH9mro0XkElKxTastAJg2e hT71y+k3WAYxJW43kXUlUbekyKqrwnA6779egUk1hVPXoTQ3xSWo8QfJFrJ/jYif YKFIyDfOniyLHyBEG0MCx9fsMX8SfWF9BQ8QIAhY3RfqY4dl+hyXefDudOYuAnio 9WTg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:feedback-id :feedback-id:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1668814081; x=1668900481; bh=EmQ0dI/Gjx0666r9UJYHPwl0Uf9C Bk7ouATv1q7n5/I=; b=lhxgsfh6+XIQCHG64wuk4L3O9Y2mQoJdwdwKyuyUmlWw vdQVX+GyHjkKgLwJW1yxnjFDwOG+3BE4f6O4952Jo6dWVVoyBSiI2MF0nf0ywxCp mdPOws7uvsr3JZr4syQusKz6AMYlGT4AFAN/NVuAmRPNqTHWfM4QW3bLbnFZwRom Y0BTi2e9hPyQEtz6AmGCmoMhrEieONsvLPWSXEtNNmNlzlIEnDv8W+zl4lg/RM6g 6AJZkjR/qL0uqSn10l6xwLd4kAIUgmN6v0ikRV1kbTVxzPmp4EDh5LxBojliW6Vw hwMykwEaXIHj2yHWk72ZxHbcxJKgqBWTv7xyWG7QjA== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvgedrhedugdduudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefofgggkfgjfhffhffvvefutgesthdtredtreertdenucfhrhhomheptehlihhs thgrihhruceorghlihhsthgrihhrsegrlhhishhtrghirhdvfedrmhgvqeenucggtffrrg htthgvrhhnpeeukeffkefhjeethedtieegudejvedvhfejleekheefhfdufffhjefgjeei heehhfenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpe grlhhishhtrghirhesrghlihhsthgrihhrvdefrdhmvg X-ME-Proxy: Feedback-ID: ifd214418:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 8EBC42D40090; Fri, 18 Nov 2022 18:28:01 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-1115-g8b801eadce-fm-20221102.001-g8b801ead Mime-Version: 1.0 Message-Id: <6cb6c30b-2670-446a-8425-92d340ab5b90@app.fastmail.com> In-Reply-To: <20221117190507.87535-2-linmengbo0689@protonmail.com> References: <20221117190507.87535-1-linmengbo0689@protonmail.com> <20221117190507.87535-2-linmengbo0689@protonmail.com> Date: Sat, 19 Nov 2022 09:27:39 +1000 From: Alistair To: "Lin, Meng-Bo" , linux-input@vger.kernel.org Cc: "Dmitry Torokhov" , "Rob Herring" , "Krzysztof Kozlowski" , "Linus Walleij" , devicetree@vger.kernel.org, "Linux Kernel Mailing List" Subject: Re: [PATCH 1/2] dt-bindings: input: cyttsp5: document vddio-supply Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 18 Nov 2022, at 5:05 AM, Lin, Meng-Bo wrote: > The Samsung touchscreen controllers are often used with external pull-up > for the interrupt line and the I2C lines, so we might need to enable > a regulator to bring the lines into usable state. Otherwise, this might > cause spurious interrupts and reading from I2C will fail. > > Document support for a "vddio-supply" that is enabled by the cyttsp5 > driver so that the regulator gets enabled when needed. > > Signed-off-by: Lin, Meng-Bo Reviewed-by: Alistair Francis > --- > .../devicetree/bindings/input/touchscreen/cypress,tt21000.yaml | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml > index 1959ec394768..869a9bdd962f 100644 > --- a/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml > +++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml > @@ -34,6 +34,9 @@ properties: > vdd-supply: > description: Regulator for voltage. > > + vddio-supply: > + description: Optional Regulator for I/O voltage. > + > reset-gpios: > maxItems: 1 > > -- > 2.30.2 > > >