From patchwork Tue Aug 20 17:31:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Figa X-Patchwork-Id: 2847204 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 31E659F494 for ; Tue, 20 Aug 2013 17:32:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4DDBC20451 for ; Tue, 20 Aug 2013 17:32:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 08D0520547 for ; Tue, 20 Aug 2013 17:32:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751487Ab3HTRcC (ORCPT ); Tue, 20 Aug 2013 13:32:02 -0400 Received: from mailout4.w1.samsung.com ([210.118.77.14]:37421 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751345Ab3HTRcA (ORCPT ); Tue, 20 Aug 2013 13:32:00 -0400 Received: from eucpsbgm1.samsung.com (unknown [203.254.199.244]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MRU00H1SBCVOFD0@mailout4.w1.samsung.com>; Tue, 20 Aug 2013 18:31:58 +0100 (BST) X-AuditID: cbfec7f4-b7f5f6d000000ff6-48-5213a80e9a7c Received: from eusync3.samsung.com ( [203.254.199.213]) by eucpsbgm1.samsung.com (EUCPMTA) with SMTP id AD.E7.04086.E08A3125; Tue, 20 Aug 2013 18:31:58 +0100 (BST) Received: from amdc1227.digital.local ([106.116.147.199]) by eusync3.samsung.com (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPA id <0MRU00779BD55310@eusync3.samsung.com>; Tue, 20 Aug 2013 18:31:58 +0100 (BST) From: Tomasz Figa To: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, Kukjin Kim , Mike Turquette , Daniel Lezcano , Mark Rutland , Pawel Moll , Rob Herring , Stephen Warren , Thomas Abraham , Thomas Gleixner , Tushar Behera , Yadwinder Singh Brar , Doug Anderson , Kumar Gala , Tomasz Figa , Kyungmin Park Subject: [PATCH 01/16] pwm: samsung: Update DT bindings documentation to cover clocks Date: Tue, 20 Aug 2013 19:31:28 +0200 Message-id: <1377019903-14614-2-git-send-email-t.figa@samsung.com> X-Mailer: git-send-email 1.8.3.2 In-reply-to: <1377019903-14614-1-git-send-email-t.figa@samsung.com> References: <1377019903-14614-1-git-send-email-t.figa@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrMLMWRmVeSWpSXmKPExsVy+t/xq7p8K4SDDHb+1LaY91nWYv6Rc6wW Z5cdZLPof7OQ1aJ3wVU2i7NNb9gtNj2+xmox4/w+Joul1y8yWTydcJHNYsL0tSwWh1ccYLJ4 dbCNxWL9jNcsFps3TWW2ODZjCaNF+9+9bBZzpr9jchDyWDNvDaPHgs9X2D1mN1xk8bjc18vk cefaHjaPd+fOsXtsXlLv0bdlFaPH501yHhvnhgZwRXHZpKTmZJalFunbJXBl7Lu8h7Ggi7/i fWdtA+MGni5GTg4JAROJxlmzWCBsMYkL99azdTFycQgJLGWU2LD5L5TTxySxb+kJdpAqNgE1 ic8Nj9hAbBEBDYkpXY/ZQYqYBRazSty6+JIRJCEsEC5xfvcvZhCbRUBVYu3C00wgNq+Ak8S/ eb/ZIdYpSCz7shashlPAWWLDoqWsILYQUE3nvkVsExh5FzAyrGIUTS1NLihOSs811CtOzC0u zUvXS87P3cQICfgvOxgXH7M6xCjAwajEw7uhUDhIiDWxrLgy9xCjBAezkgjvtgygEG9KYmVV alF+fFFpTmrxIUYmDk6pBsZ5ZfNufQta9OKDaPiU+J0vrZc6zj2U41K+ZUJLnf6F+Ldpz7Ss DqXsavvStXBNxr26O3+ffnk7VXzxswChrOmL/y03uLJuf6bISsmts24pWWnytsfaCe+30pRc ZMNcZb9p66Ft879ITjr2b0reV/m0V0E+8jteH+zvc86vE5q5Y82T57LzObMalViKMxINtZiL ihMB2LxqfVYCAAA= Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-9.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 PWM driver consumes at least one and up to three clocks, which need to be specified in device tree when used. This patch updates bindings documentation to add information about clocks. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Acked-by: Stephen Warren --- Documentation/devicetree/bindings/pwm/pwm-samsung.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt index 4caa1a7..d61fccd 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt @@ -19,6 +19,16 @@ Required properties: - reg: base address and size of register area - interrupts: list of timer interrupts (one interrupt per timer, starting at timer 0) +- clock-names: should contain all following required clock names: + - "timers" - PWM base clock used to generate PWM signals, + and any subset of following optional clock names: + - "pwm-tclk0" - first external PWM clock source, + - "pwm-tclk1" - second external PWM clock source. + Note that not all IP variants allow using all external clock sources. + Refer to SoC documentation to learn which clock source configurations + are available. +- clocks: should contain clock specifiers of all clocks, which input names + have been specified in clock-names property, in same order. - #pwm-cells: should be 3. See pwm.txt in this directory for a description of the cells format. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. @@ -34,6 +44,8 @@ Example: reg = <0x7f006000 0x1000>; interrupt-parent = <&vic0>; interrupts = <23>, <24>, <25>, <27>, <28>; + clocks = <&clock 67>; + clock-names = "timers"; samsung,pwm-outputs = <0>, <1>; #pwm-cells = <3>; }