From patchwork Fri Dec 7 14:28:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pawe=C5=82_Chmiel?= X-Patchwork-Id: 10718307 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E0B071731 for ; Fri, 7 Dec 2018 14:29:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D01522E28C for ; Fri, 7 Dec 2018 14:29:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C42172E303; Fri, 7 Dec 2018 14:29:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 723532E28C for ; Fri, 7 Dec 2018 14:29:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726010AbeLGO3J (ORCPT ); Fri, 7 Dec 2018 09:29:09 -0500 Received: from mail-lf1-f65.google.com ([209.85.167.65]:35187 "EHLO mail-lf1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726328AbeLGO3J (ORCPT ); Fri, 7 Dec 2018 09:29:09 -0500 Received: by mail-lf1-f65.google.com with SMTP id e26so3179514lfc.2; Fri, 07 Dec 2018 06:29:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=XFPTtMJpSFiF4PFAqSj6g1FCx0iqQrUaJq/0mQ1Us/I=; b=rnRExS/ioqXRd7pl9X9/WxnSDOkSz5BlvCsll1C0iOnrGjkL+YxDK5AG/ixFIJwLnj uBHkR/0kUmi2Vs3Gm3RSwug2RKF3WqLC0Z7P+4IJk4FsG4C+wD+M22uk3m9+G6fBWPjN y0v/Pmc+6RX9W7VLoifWD1QgiUtol9TfYdYDwd2d8gfrGngaWdq+6KEzhDbvEKCrkJZs jsOty8TBA9RGkBI0wEGUMB/zie8GdzJQWbpWSUP3UWXtVA2IEO0CrfGjKrmYxQokmk1E 6xsSukU69ObfUN02s9DCMgGqfi9FKRY7YtAp8JUvw9TWjb+aNzazjNFGGQOIwlWxG7MV IoWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=XFPTtMJpSFiF4PFAqSj6g1FCx0iqQrUaJq/0mQ1Us/I=; b=ZBVWzrYjTChOHoTevvXlXJ5uOTwRNdJhPWkNPUJEU4I62zD2g1aj5X4/+zWY6VuKqW ArZx41BnzvVcA/IEs4qlPx4BAVo2hwe5BwLWrXVQqgd+Q/X1+8TqYyZN7LrR2Owo9IUJ 3qhOXP1ZCazYLEF3qsmGJe0rkB1Ifrx9JH4zJDi5AVw7b51aibWKDeeAJcf2PYNWeYf2 iWm2LJpizYQrTEMlyfTH9sLL4evIKuyWxBl4tr4J4tP9GDJhggTzQJx6Mhn+v5RtpX2f oUs2CTHBqQ7rrMJOwgjqU/+QGhqA5VQd1gwJHs2H/osJhpGLBv4/X33ZK1XXBnS6mHAl hYeQ== X-Gm-Message-State: AA+aEWb9YGW6zA7Av6OJPxtHBjEkmuWuad2EPZdzjO4xmkzNOc29jydg QFTkvDPfH4fsrN9Au7fbc+qFhxq268Y= X-Google-Smtp-Source: AFSGD/UJGLWQZxgX4zc/qOv5w0brAukTjLL/vMZ7TccXHJhOgYWzodEmqX/Piod2kwFhkAi+/CaztQ== X-Received: by 2002:a19:1d0d:: with SMTP id d13mr1430771lfd.74.1544192945963; Fri, 07 Dec 2018 06:29:05 -0800 (PST) Received: from localhost.localdomain ([2a02:a315:5445:5300:74d5:51ba:2673:f3f4]) by smtp.googlemail.com with ESMTPSA id v64sm630504lfa.48.2018.12.07.06.29.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 07 Dec 2018 06:29:05 -0800 (PST) From: =?utf-8?q?Pawe=C5=82_Chmiel?= To: nick@shmanahar.org Cc: dmitry.torokhov@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, =?utf-8?q?Pawe=C5=82_Chmiel?= Subject: [PATCH v4 3/3] Input: atmel_mxt_ts: Document optional voltage regulators Date: Fri, 7 Dec 2018 15:28:57 +0100 Message-Id: <20181207142857.15818-4-pawel.mikolaj.chmiel@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181207142857.15818-1-pawel.mikolaj.chmiel@gmail.com> References: <20181207142857.15818-1-pawel.mikolaj.chmiel@gmail.com> MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Document new optional voltage regulators, which can be used to power down/up touchscreen. Signed-off-by: Paweł Chmiel Reviewed-by: Rob Herring --- Changes from v1: - Added reviewed-by --- .../devicetree/bindings/input/atmel,maxtouch.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt index c88919480d37..17930ecadad3 100644 --- a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt +++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt @@ -31,6 +31,12 @@ Optional properties for main touchpad device: - reset-gpios: GPIO specifier for the touchscreen's reset pin (active low) +- avdd-supply: Analog power supply. It powers up the analog channel block + of the controller to detect the touches. + +- vdd-supply: Digital power supply. It powers up the digital block + of the controller to enable i2c communication. + Example: touch@4b { @@ -38,4 +44,6 @@ Example: reg = <0x4b>; interrupt-parent = <&gpio>; interrupts = ; + avdd-supply = <&atsp_reg>; + vdd-supply = <&tsp_reg>; };