From patchwork Sun Aug 30 09:15:54 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dirk Behme X-Patchwork-Id: 512194 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 921E21401F6 for ; Sun, 30 Aug 2015 19:16:01 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=M+1nRj8q; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753177AbbH3JQB (ORCPT ); Sun, 30 Aug 2015 05:16:01 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:38789 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752088AbbH3JQA (ORCPT ); Sun, 30 Aug 2015 05:16:00 -0400 Received: by wicpl12 with SMTP id pl12so3180861wic.1 for ; Sun, 30 Aug 2015 02:15:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=i8B0l5V2JXvm3zRdZg1DpHvWSKOBt+HRhcW/R6DK30M=; b=M+1nRj8qm6FcnnKevKtXEBazmC/FgxzJx45EE93BV4a1q4OrCPCfpO7u2vAYuMvJQq WQJ5Tfmt10M1vgc7NqqC/avQYjc7tKu5YZhbhQzxEgeUtpwqNKQk7b6LWEf/TjuPDuT7 sbvawUGubLDf1S9RNTJdKfYvrHQWhOKRRe12qjJvQbIBOtQcWrtCZ4dMl/+uLFEY6Ppo Hh4LNaNNehLTCyvjgeIrMVS/UuBTkx5P1LoaSLzHjDaCGcPibO6uC08lS8L7lIvJvkSG ktS53F3fnyf9+Jl9tDJd1sigrhrsP3I/Xdv7+JYELVcuIxMp2IxAtYqm8yb2f2yj3GIj 6edw== X-Received: by 10.180.214.70 with SMTP id ny6mr13182484wic.20.1440926159408; Sun, 30 Aug 2015 02:15:59 -0700 (PDT) Received: from localhost.localdomain (p4FEE0D0A.dip0.t-ipconnect.de. [79.238.13.10]) by smtp.gmail.com with ESMTPSA id bi6sm16517041wjc.25.2015.08.30.02.15.58 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 30 Aug 2015 02:15:58 -0700 (PDT) From: Dirk Behme To: Alexandre Courbot Cc: linux-gpio@vger.kernel.org, Dirk Behme Subject: [PATCH 1/2 v2] Documentation: gpio: board: add flags parameter to gpiod_get*() functions Date: Sun, 30 Aug 2015 11:15:54 +0200 Message-Id: <1440926155-7183-1-git-send-email-dirk.behme@gmail.com> X-Mailer: git-send-email 2.5.1 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org With commit 39b2bbe3d715 ("gpio: add flags argument to gpiod_get*() functions") the gpiod_get*() functions got a 'flags' parameter. Reflect this in the documentation, too. Signed-off-by: Dirk Behme --- Documentation/gpio/board.txt | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt index b80606d..7605773 100644 --- a/Documentation/gpio/board.txt +++ b/Documentation/gpio/board.txt @@ -39,11 +39,11 @@ This property will make GPIOs 15, 16 and 17 available to the driver under the struct gpio_desc *red, *green, *blue, *power; - red = gpiod_get_index(dev, "led", 0); - green = gpiod_get_index(dev, "led", 1); - blue = gpiod_get_index(dev, "led", 2); + red = gpiod_get_index(dev, "led", 0, GPIOD_OUT_HIGH); + green = gpiod_get_index(dev, "led", 1, GPIOD_OUT_HIGH); + blue = gpiod_get_index(dev, "led", 2, GPIOD_OUT_HIGH); - power = gpiod_get(dev, "power"); + power = gpiod_get(dev, "power", GPIOD_OUT_HIGH); The led GPIOs will be active-high, while the power GPIO will be active-low (i.e. gpiod_is_active_low(power) will be true). @@ -142,12 +142,11 @@ The driver controlling "foo.0" will then be able to obtain its GPIOs as follows: struct gpio_desc *red, *green, *blue, *power; - red = gpiod_get_index(dev, "led", 0); - green = gpiod_get_index(dev, "led", 1); - blue = gpiod_get_index(dev, "led", 2); + red = gpiod_get_index(dev, "led", 0, GPIOD_OUT_HIGH); + green = gpiod_get_index(dev, "led", 1, GPIOD_OUT_HIGH); + blue = gpiod_get_index(dev, "led", 2, GPIOD_OUT_HIGH); - power = gpiod_get(dev, "power"); - gpiod_direction_output(power, 1); + power = gpiod_get(dev, "power", GPIOD_OUT_HIGH); Since the "power" GPIO is mapped as active-low, its actual signal will be 0 after this code. Contrary to the legacy integer GPIO interface, the active-low