From patchwork Sun Feb 23 23:50:01 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 3705461 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BCC29BF13A for ; Sun, 23 Feb 2014 23:51:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DE1C4201DD for ; Sun, 23 Feb 2014 23:51:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02EF0201EF for ; Sun, 23 Feb 2014 23:51:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752317AbaBWXvi (ORCPT ); Sun, 23 Feb 2014 18:51:38 -0500 Received: from ring0.de ([5.45.105.125]:60042 "EHLO smtp.ring0.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751392AbaBWXvg (ORCPT ); Sun, 23 Feb 2014 18:51:36 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 From: Sebastian Reichel To: Sebastian Reichel , Linus Walleij , Shubhrajyoti Datta , Carlos Chinea Cc: Tony Lindgren , Grant Likely , Rob Herring , Pawel Moll , Mark Rutland , Stephen Warren , Ian Campbell , Rob Landley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, =?UTF-8?q?Pali=20Roh=C3=A1r?= , =?UTF-8?q?=D0=98=D0=B2=D0=B0=D0=B9=D0=BB=D0=BE=20=D0=94=D0=B8=D0=BC=D0=B8=D1=82=D1=80=D0=BE=D0=B2?= , Joni Lapilainen , Aaro Koskinen , Sebastian Reichel Subject: [PATCHv1 6/6] Documentation: DT: omap-ssi binding documentation Date: Mon, 24 Feb 2014 00:50:01 +0100 Message-Id: <1393199401-27197-7-git-send-email-sre@debian.org> X-Mailer: git-send-email 1.8.5.3 In-Reply-To: <1393199401-27197-1-git-send-email-sre@debian.org> References: <1393199401-27197-1-git-send-email-sre@debian.org> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Create device tree binding documentation for OMAP Synchronous Serial Interface (SSI) device. Signed-off-by: Sebastian Reichel --- Documentation/devicetree/bindings/hsi/omap_ssi.txt | 82 ++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/hsi/omap_ssi.txt diff --git a/Documentation/devicetree/bindings/hsi/omap_ssi.txt b/Documentation/devicetree/bindings/hsi/omap_ssi.txt new file mode 100644 index 0000000..cfd729b --- /dev/null +++ b/Documentation/devicetree/bindings/hsi/omap_ssi.txt @@ -0,0 +1,82 @@ +OMAP SSI controller bindings + +Required properties: +- compatible: Should include "ti,omap3-ssi". +- reg-names: Contains the values "sys" and "gdd". +- reg: Contains a register specifier for each entry in + reg-names. +- interrupt-names: Contains the value "gdd_mpu". +- interrupts: Contains interrupt information for each entry in + interrupt-names. +- ranges: Represents the bus address mapping between the main + controller node and the child nodes below. +- clocks: Contains clock specifiers for each entry in + clock-names. +- clock-names: Must include the following entries: + "ssi_ssr_fck": The OMAP clock of that name + "ssi_sst_fck": The OMAP clock of that name + "ssi_ick": The OMAP clock of that name +- #address-cells: Should be set to <1> +- #size-cells: Should be set to <1> + +Each port is represented as a sub-node of the ti,omap3-ssi device. + +Required Port sub-node properties: +- compatible: Should be set to the following value + ti,omap3-ssi-port (applicable to OMAP34xx devices) +- reg-names: Contains the values "rx" and "tx". +- reg: Contains a register specifier for each entry in + reg-names. +- interrupt-parent Should be a phandle for the interrupt controller +- interrupt-names: Contains the values "mpu_irq0" and "mpu_irq1". +- interrupts: Contains interrupt information for each entry in + interrupt-names. +- ti,ssi-cawake-gpio: Defines which GPIO pin is used to signify CAWAKE + events for the port. This is an optional board-specific + property. If it's missing the port will not be + enabled. + +Example for Nokia N900: + +ssi-controller@48058000 { + compatible = "ti,omap3-ssi"; + + /* needed until hwmod is updated to use the compatible string */ + ti,hwmods = "ssi"; + + reg = <0x48058000 0x1000>, + <0x48059000 0x1000>; + reg-names = "sys", + "gdd"; + + interrupts = <55>; + interrupt-names = "gdd_mpu"; + + clocks = <&ssi_ssr_fck_3430es1>, + <&ssi_sst_fck_3430es1>, + <&ssi_ick_3430es1>; + clock-names = "ssi_ssr_fck", + "ssi_sst_fck", + "ssi_ick"; + + #address-cells = <1>; + #size-cells = <1>; + ranges; + + ssi-port@0 { + compatible = "ti,omap3-ssi-port"; + + reg = <0x4805a000 0x800>, + <0x4805a800 0x800>; + reg-names = "tx", + "rx"; + + interrupt-parent = <&intc>; + interrupts = <51>, + <52>; + interrupt-names = "mpu_irq0", + "mpu_irq1"; + + ti,ssi-cawake-gpio = <&gpio5 23 GPIO_ACTIVE_HIGH>; /* 151 */ + } +}