From patchwork Fri Apr 21 08:39:20 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic Desroches X-Patchwork-Id: 9692151 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 072B160328 for ; Fri, 21 Apr 2017 08:41:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F1A7A28617 for ; Fri, 21 Apr 2017 08:41:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E641C28619; Fri, 21 Apr 2017 08:41:54 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7A1C028617 for ; Fri, 21 Apr 2017 08:41:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=XnvbuyTuXpuvQo0Cc6CzWXRx7QTitHPOX8g/3lPIYVI=; b=euoTGoS8IMbEXK 3IskJ05M9lsud+evLxuAM2svFoagg7tQNnAqoSylNdCJgxcVivhU4SrqjGCjz0q/SiXnl947HndZn GdqY0MDrRTAchkAXoi4ljpazok0o/Opmg/dyHG41U2ZSENvXvF9SMzqk3aAy4LtqkqTk1ixcYm1oa v7xE20o9tYvt2s1Jlb18ofqw+csaEXzWJnqt9pNNOqTXKnqDWWAlvJpEmxv4+PVJ+H6/ETIWTRN9Z Swg8P3ZFl8VSnfMXsOJX1Xsk0noYOXtlLHmN+9O5fkTAUlcV2yzKeFRjvarGDXGteCFvjFdp25LQ2 WgkWEWLN6CZMotKpszYA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1d1U8Y-00036a-4k; Fri, 21 Apr 2017 08:41:54 +0000 Received: from esa3.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1d1U7O-0001k7-HB for linux-arm-kernel@lists.infradead.org; Fri, 21 Apr 2017 08:40:44 +0000 X-IronPort-AV: E=Sophos;i="5.37,229,1488870000"; d="scan'208";a="1783714" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA; 21 Apr 2017 01:40:21 -0700 Received: from ibiza.rfo.atmel.com (10.10.76.4) by chn-sv-exch04.mchp-main.com (10.10.76.105) with Microsoft SMTP Server id 14.3.181.6; Fri, 21 Apr 2017 01:40:20 -0700 From: Ludovic Desroches To: , , Subject: [PATCH v2 1/5] dt-bindings: input: Add Atmel PTC subsystem bindings Date: Fri, 21 Apr 2017 10:39:20 +0200 Message-ID: <20170421083924.15096-2-ludovic.desroches@microchip.com> X-Mailer: git-send-email 2.9.0 In-Reply-To: <20170421083924.15096-1-ludovic.desroches@microchip.com> References: <20170421083924.15096-1-ludovic.desroches@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170421_014042_721577_D03B4D53 X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ludovic Desroches , dmitry.torokhov@gmail.com, alexandre.belloni@free-electrons.com, linux-kernel@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add description of the Atmel PTC subsystem bindings. Signed-off-by: Ludovic Desroches Acked-by: Rob Herring --- .../devicetree/bindings/input/atmel,ptc.txt | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/atmel,ptc.txt diff --git a/Documentation/devicetree/bindings/input/atmel,ptc.txt b/Documentation/devicetree/bindings/input/atmel,ptc.txt new file mode 100644 index 0000000..a183fd5 --- /dev/null +++ b/Documentation/devicetree/bindings/input/atmel,ptc.txt @@ -0,0 +1,67 @@ +Atmel PTC Subsystem + +The Atmel Peripheral Touch Controller subsystem offers built-in hardware +for capacitive touch measurement on sensors that function as buttons, sliders +and wheels. + +1) PTC Subsystem node + +Required properties: +- compatible: Must be "atmel,sama5d2-ptc" +- reg: Address, length of the shared memory and ppp registers location + and length. +- clocks: Phandlers to the clocks. +- clock-names: Must be "ptc_clk", "ptc_int_osc", "slow_clk". +- #address-cells: Must be one. The cell is the button or scroller id. +- #size-cells: Must be zero. + +Example: + ptc@fc060000 { + compatible = "atmel,sama5d2-ptc"; + reg = <0x00800000 0x10000 + 0xfc060000 0xcf>; + interrupts = <58 IRQ_TYPE_LEVEL_HIGH 7>; + clocks = <&ptc_clk>, <&main>, <&clk32k>; + clock-names = "ptc_clk", "ptc_int_osc", "slow_clk"; + #address-cells = <1>; + #size-cells = <0>; + + [ child node definitions... ] + }; + +2) Scroller / buttons subnodes + +Subnodes describe the kind of sensors the customer want to use. They have to be +named according to their function: button, slider or wheel. + +2.1) Scroller subnodes + +Required properties: +- reg: Id of the scroller, each id must be different. + +Example: + slider@0 { + reg = <0>; + }; + + wheel@1 { + reg = <1>; + }; + +2.2) Button subnodes + +Required properties: +- reg: Id of node used for the button, each id must be + different. +- linux,keycode: Key code of the button. + +Example: + button@8 { + reg = <8>; + linux,keycode = <2>; + }; + + button@9 { + reg = <9>; + linux,keycode = <3>; + };