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 X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DCCCC43381 for ; Thu, 21 Mar 2019 08:21:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1C681218A2 for ; Thu, 21 Mar 2019 08:21:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="J/YsD8di" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728004AbfCUIVW (ORCPT ); Thu, 21 Mar 2019 04:21:22 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:43693 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727887AbfCUIVV (ORCPT ); Thu, 21 Mar 2019 04:21:21 -0400 Received: by mail-pf1-f195.google.com with SMTP id c8so3812339pfd.10 for ; Thu, 21 Mar 2019 01:21:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YMUNzEzuNv5+/G7LTk2UNMwsYgPjYrZ+abL8baBFG1I=; b=J/YsD8di/55xadaz8dvQEnlByFKXWpDWuyPthAKmZnRlx+9Nkxo8XX25M51UZnP3ZJ xjRB63poBciyqTWuhw41lz/GkHOVl7e22QDTaFWj9HiPmGLvwmd9+5ov5xZpoY735fWW xZE3z0vpB8Tq10rvjJ1ujaVT/NkweRSMnAMXE= 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=YMUNzEzuNv5+/G7LTk2UNMwsYgPjYrZ+abL8baBFG1I=; b=QW/cHc+80Qq55+D3NWNis6C4sHsEldTcnB4luSg4a29YFyij2YWQE+pG/uJhDaxM08 G/b4vvAQpTcNw7DnqX407T8En/Rnc8AdpAzD22HjcJ5up2agWrXMvdYfkDdpO0UWnR7H JR7IvJsSyNTM5VSamufCTDWBP9sU6VxrJuL/x9h6p94neE8ToLl3R910zqnv3W5Eqpv7 Vtlm6CuJm4E7sGXbMzu2waqqNJGFNAn2bP8kfZwUmlWHOHcA4qPLR1AKl3fQQAzfef/m Ib/LO/9wOC0kcfDkn2mgzsQzOVkT4eh4mjrPh4fTadgpxSUeEStmAOr8/0mwS8nbdjK3 E7Ig== X-Gm-Message-State: APjAAAUPii14LVosKr3MmCVUm+LnWMB7H/TPNbCdUuBs7qGjiZMIKQQ8 ALEeNsicpmOC3RfnfFFSlkw/SA== X-Google-Smtp-Source: APXvYqw0vT4bnNimJrk86UnIp+C1drymPdpGuM6BqyJ7N3fxlEb8G+5phcT8jCw5YAydtbCQFd0LgA== X-Received: by 2002:a17:902:a5c9:: with SMTP id t9mr2228455plq.196.1553156480222; Thu, 21 Mar 2019 01:21:20 -0700 (PDT) Received: from localhost.localdomain ([49.206.202.234]) by smtp.gmail.com with ESMTPSA id b138sm6288681pfb.48.2019.03.21.01.21.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Mar 2019 01:21:19 -0700 (PDT) From: Jagan Teki To: Dmitry Torokhov , Bastien Nocera , Rob Herring Cc: Henrik Rydberg , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Mark Rutland , linux-amarula@amarulasolutions.com, Michael Trimarchi , Jagan Teki Subject: [PATCH v7 1/4] dt-bindings: input: touchscreen: goodix: Document regulator properties Date: Thu, 21 Mar 2019 13:51:01 +0530 Message-Id: <20190321082104.2874-2-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190321082104.2874-1-jagan@amarulasolutions.com> References: <20190321082104.2874-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Goodix CTP controllers support analog, digital and gpio regulator supplies on relevant controller pin configurations. Out of which AVDD28 and VDDIO regulators are required in few goodix CTP chips during power-on sequence. AVDD22, DVDD12 regulators have no relevant functionality described from datasheet [1]. So, document both AVDD28, VDDIO regulators into optional properties since few of the goodix chip do work without these regulator power-on sequence. [1] GT5663 Datasheet_English_20151106_Rev.01 Signed-off-by: Jagan Teki Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/input/touchscreen/goodix.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt index 8cf0b4d38a7e..255673250bbd 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt @@ -19,6 +19,8 @@ Optional properties: - irq-gpios : GPIO pin used for IRQ. The driver uses the interrupt gpio pin as output to reset the device. - reset-gpios : GPIO pin used for reset + - AVDD28-supply : Analog power supply regulator on AVDD28 pin + - VDDIO-supply : GPIO power supply regulator on VDDIO pin - touchscreen-inverted-x - touchscreen-inverted-y - touchscreen-size-x -- 2.18.0.321.gffc6fa0e3