From patchwork Mon Nov 28 16:40:24 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Lechner X-Patchwork-Id: 700061 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3tSC9X5CZKz9vFb for ; Tue, 29 Nov 2016 03:41:04 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=lechnology.com header.i=@lechnology.com header.b="Gvzs0Q9v"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933182AbcK1Qkp (ORCPT ); Mon, 28 Nov 2016 11:40:45 -0500 Received: from vern.gendns.com ([206.190.152.46]:42946 "EHLO vern.gendns.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932839AbcK1Qkm (ORCPT ); Mon, 28 Nov 2016 11:40:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lechnology.com; s=default; h=References:In-Reply-To:Message-Id:Date:Subject :Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=TZ4ANjxBrpTHGWRnb1tQiO+IdjfB1FsgxxQSIjggwcY=; b=Gvzs0Q9vCkc0nmgSQs7Y1B8V7 IJ2egze0ASYavsZz+KhOjwK8vYzGsQPi1iH1Fmd6/lZk480I+lv9OoJe4dmbR2EYIXsKGOF4Cq7VI bNd34NflVnwOKvQLGJTz2weiyDCJ+7wqx+1Xe5xuvflcnmUsDucde+7yE0Bi3k/Rgl1AjnXB1R/wH cbzo1lTUyY2VP9pecmnBHfJ8R+iepk+YFjm5qaeDxewqyvJsLVpZYe4cHhxw4qfvJfNEDMbXke5r7 7uGvXLYE/aAE3DsnAsAzDszAsujyyhN69uTvoINjKbllIPXTMQzrLDcuHHoA7zLS6IrqVOr46GECP d6tCqAXFA==; Received: from 108-198-5-147.lightspeed.okcbok.sbcglobal.net ([108.198.5.147]:55948 helo=freyr.lechnology.com) by vern.gendns.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-SHA256:128) (Exim 4.87) (envelope-from ) id 1cBOys-001WLm-Bz; Mon, 28 Nov 2016 11:40:38 -0500 From: David Lechner To: Linus Walleij , Rob Herring , Mark Rutland , Sekhar Nori , Kevin Hilman Cc: David Lechner , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Axel Haslam , Alexandre Bailon , =?UTF-8?q?Bartosz=20Go=C5=82aszewski?= Subject: [PATCH v2 1/3] devicetree: bindings: pinctrl: Add binding for ti, da850-pupd Date: Mon, 28 Nov 2016 10:40:24 -0600 Message-Id: <1480351226-3332-2-git-send-email-david@lechnology.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1480351226-3332-1-git-send-email-david@lechnology.com> References: <1480351226-3332-1-git-send-email-david@lechnology.com> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vern.gendns.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: vern.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: vern.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Device-tree bindings for TI DA850/OMAP-L138/AM18XX pullup/pulldown pinconf controller. Signed-off-by: David Lechner Reviewed-by: Sekhar Nori --- v2 changes: * s/DA8XX/DA850/ in the commit message .../devicetree/bindings/pinctrl/ti,da850-pupd.txt | 55 ++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/ti,da850-pupd.txt diff --git a/Documentation/devicetree/bindings/pinctrl/ti,da850-pupd.txt b/Documentation/devicetree/bindings/pinctrl/ti,da850-pupd.txt new file mode 100644 index 0000000..7f29805 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/ti,da850-pupd.txt @@ -0,0 +1,55 @@ +* Pin configuration for TI DA850/OMAP-L138/AM18x + +These SoCs have a separate controller for setting bias (internal pullup/down). +Bias can only be selected for groups rather than individual pins. + +Required Properties: + + - compatible: Must be "ti,da850-pupd" + - reg: Base address and length of the memory resource used by the pullup/down + controller hardware module. + +The controller node also acts as a container for pin group configuration nodes. +The names of these groups are ignored. + +Pin Group Node Properties: + +- groups: An array of strings, each string containing the name of a pin group. + Valid names are "cp0".."cp31". + +The pin configuration parameters use the generic pinconf bindings defined in +pinctrl-bindings.txt in this directory. The supported parameters are +bias-disable, bias-pull-up, bias-pull-down. + + +Example +------- + +In common dtsi file: + + pinconf: pin-controller@22c00c { + compatible = "ti,da850-pupd"; + reg = <0x22c00c 0x8>; + }; + +In board-specific file: + + &pinconf { + pinctrl-0 = <&pinconf_bias_groups>; + pinctrl-names = "default"; + + pinconf_bias_groups: bias-groups { + pull-up { + groups = "cp30", "cp31"; + bias-pull-up; + }; + pull-down { + groups = "cp29", "cp28"; + bias-pull-down; + }; + disable { + groups = "cp27", "cp26"; + bias-disable; + }; + }; + };