From patchwork Thu Mar 5 02:01:15 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Anna X-Patchwork-Id: 5942511 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 [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2D6E5BF440 for ; Thu, 5 Mar 2015 02:02:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5F97C20398 for ; Thu, 5 Mar 2015 02:02:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0123920390 for ; Thu, 5 Mar 2015 02:02:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753673AbbCECCa (ORCPT ); Wed, 4 Mar 2015 21:02:30 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:43713 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753935AbbCECBw (ORCPT ); Wed, 4 Mar 2015 21:01:52 -0500 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id t2521KPJ004855; Wed, 4 Mar 2015 20:01:20 -0600 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id t2521JLw017974; Wed, 4 Mar 2015 20:01:19 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.224.2; Wed, 4 Mar 2015 20:01:18 -0600 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id t2521IZ3003784; Wed, 4 Mar 2015 20:01:18 -0600 Received: from localhost (irmo.am.dhcp.ti.com [128.247.71.175]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id t2521I902618; Wed, 4 Mar 2015 20:01:18 -0600 (CST) From: Suman Anna To: Ohad Ben-Cohen , Mark Rutland CC: Bjorn Andersson , , , , , Suman Anna , Rob Herring Subject: [PATCH v8 3/4] Documentation: dt: add the omap hwspinlock bindings document Date: Wed, 4 Mar 2015 20:01:15 -0600 Message-ID: <1425520876-37826-4-git-send-email-s-anna@ti.com> X-Mailer: git-send-email 2.3.0 In-Reply-To: <1425520876-37826-1-git-send-email-s-anna@ti.com> References: <1425520876-37826-1-git-send-email-s-anna@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP HwSpinlock IP is present only on OMAP4 and other newer SoCs, which are all device-tree boot only. This patch adds the DT bindings information for OMAP hwspinlock module. Cc: Rob Herring Cc: Mark Rutland Signed-off-by: Suman Anna --- v8: Removed the previous information about hwlock-base-id, and added a reference to the base binding document. .../devicetree/bindings/hwlock/omap-hwspinlock.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt diff --git a/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt new file mode 100644 index 000000000000..2c9804f4f4ac --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt @@ -0,0 +1,26 @@ +OMAP4+ HwSpinlock Driver +======================== + +Required properties: +- compatible: Should be "ti,omap4-hwspinlock" for + OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs +- reg: Contains the hwspinlock module register address space + (base address and length) +- ti,hwmods: Name of the hwmod associated with the hwspinlock device +- #hwlock-cells: Should be 1. The OMAP hwspinlock users will use a + 0-indexed relative hwlock number as the argument + specifier value for requesting a specific hwspinlock + within a hwspinlock bank. + +Please look at the generic hwlock binding for usage information for consumers, +"Documentation/devicetree/bindings/hwlock/hwlock.txt" + +Example: + +/* OMAP4 */ +hwspinlock: spinlock@4a0f6000 { + compatible = "ti,omap4-hwspinlock"; + reg = <0x4a0f6000 0x1000>; + ti,hwmods = "spinlock"; + #hwlock-cells = <1>; +};