From patchwork Fri Mar 10 10:39:15 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Schulz X-Patchwork-Id: 9615999 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 6A8EE60417 for ; Fri, 10 Mar 2017 10:55:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 56585286FC for ; Fri, 10 Mar 2017 10:55:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4AC3D28709; Fri, 10 Mar 2017 10:55:27 +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=unavailable 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 0CD63286FC for ; Fri, 10 Mar 2017 10:55:25 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=VaiBcemZOBuIYtZEezLvCwPk+NFoyMx1IxdfXUbVgDk=; b=i8DgYb8EY9h4eP/j3wZL7Nvfd/ BkSuGG0v1+gGZq84Y48Z3rvqL4TRX+ijRTw9IAE3jcbb9xQ322qplemB7KhJ7eRA7IrAKeNKM1yCF 7B3XpdP7L9i2YChZUYvARVUXczqVDN0+szm+ZUzvN3VRD9T/UxMquQ3c9PxMfzUUX1N4+4W3PU+9G dytYbMvmAcd2mdjjK39lzESr2fN3ZXRGyClMqdEGjdnVpeyHlWwJ49NVBzQy4+grgaf28ccVjTWAP A9sErQS/TqbmhQM97pKR9PjPa3sALWSoUzQf7QrwZpN61fbx4JwiF1E8w8wuybxUltiRJcgLIEEa+ +dWsoEKg==; 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 1cmICi-0003Sr-5M; Fri, 10 Mar 2017 10:55:24 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cmHyG-0002nK-7S for linux-arm-kernel@lists.infradead.org; Fri, 10 Mar 2017 10:40:33 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 1B3F12081C; Fri, 10 Mar 2017 11:39:52 +0100 (CET) Received: from qschulz.home (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id 9171E207D5; Fri, 10 Mar 2017 11:39:33 +0100 (CET) From: Quentin Schulz To: dmitry.torokhov@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, maxime.ripard@free-electrons.com, wens@csie.org, lee.jones@linaro.org, linux@armlinux.org.uk, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, stefan.mavrodiev@gmail.com Subject: [PATCH v2 05/11] Documentation: DT: bindings: mfd: add A33 GPADC binding Date: Fri, 10 Mar 2017 11:39:15 +0100 Message-Id: <20170310103921.19469-6-quentin.schulz@free-electrons.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170310103921.19469-1-quentin.schulz@free-electrons.com> References: <20170310103921.19469-1-quentin.schulz@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170310_024028_560864_4490F000 X-CRM114-Status: GOOD ( 12.07 ) 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: thomas.petazzoni@free-electrons.com, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Quentin Schulz , linux-sunxi@googlegroups.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 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 This patch adds documentation for the A33 GPADC binding. Signed-off-by: Quentin Schulz --- added in v2 .../devicetree/bindings/mfd/sun4i-gpadc.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt new file mode 100644 index 0000000..17242c8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt @@ -0,0 +1,59 @@ +Allwinner SoCs' GPADC Device Tree bindings +------------------------------------------ +The Allwinner SoCs all have an ADC that can also act as a thermal sensor +and sometimes as a touchscreen controller. + +Required properties: + - compatible: "sun8i-a33-gpadc-iio", + - reg: mmio address range of the chip, + - #thermal-sensor-cells: shall be 0, + - #io-channel-cells: shall be 0, + +Example: + rtp: rtp@01c25000 { + compatible = "allwinner,sun8i-a33-gpadc-iio"; + reg = <0x01c25000 0x100>; + #thermal-sensor-cells = <0>; + #io-channel-cells = <0>; + }; + +sun4i, sun5i and sun6i SoCs are also supported via the older binding: + +sun4i resistive touchscreen controller +-------------------------------------- + +Required properties: + - compatible: "allwinner,sun4i-a10-ts", "allwinner,sun5i-a13-ts" or + "allwinner,sun6i-a31-ts" + - reg: mmio address range of the chip + - interrupts: interrupt to which the chip is connected + - #thermal-sensor-cells: shall be 0 + +Optional properties: + - allwinner,ts-attached : boolean indicating that an actual touchscreen + is attached to the controller + - allwinner,tp-sensitive-adjust : integer (4 bits) + adjust sensitivity of pen down detection + between 0 (least sensitive) and 15 + (defaults to 15) + - allwinner,filter-type : integer (2 bits) + select median and averaging filter + samples used for median / averaging filter + 0: 4/2 + 1: 5/3 + 2: 8/4 + 3: 16/8 + (defaults to 1) + +Example: + + rtp: rtp@01c25000 { + compatible = "allwinner,sun4i-a10-ts"; + reg = <0x01c25000 0x100>; + interrupts = <29>; + allwinner,ts-attached; + #thermal-sensor-cells = <0>; + /* sensitive/noisy touch panel */ + allwinner,tp-sensitive-adjust = <0>; + allwinner,filter-type = <3>; + };