From patchwork Tue Nov 5 02:04:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 1189277 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="gjQ9HjFr"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 476Xzx18zFz9sP6 for ; Tue, 5 Nov 2019 13:05:01 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730076AbfKECFA (ORCPT ); Mon, 4 Nov 2019 21:05:00 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:33274 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729524AbfKECFA (ORCPT ); Mon, 4 Nov 2019 21:05:00 -0500 Received: by mail-pf1-f194.google.com with SMTP id c184so13976288pfb.0 for ; Mon, 04 Nov 2019 18:04:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3t0yi8e+wp4/Ow/hSy+y/91MJtDT3XTA8efRc1/FRWg=; b=gjQ9HjFrLAo9MXrguhLrxVEr/kjlkougV9VD2lGbRqkTWZxRfn9aVO28Q57A6mYcPt QEEH52Tqn2fp8yRZ3RJEZfISiGsZIl4wFWGFYZKj7jsDrDayzqOb2PIhBCc9SNi9dsFd gSRdq3exmtS84yWVEI+UbejPFdxkhXfXaSJcky/CTF/ujHho92srHW/44h3HZWqhlv5o XbORBEkO8AaB6QpglWujdryp6PxNRIX+q5v/OEFVpnducTkS2q7BZuYfPjSpGMypurya D/6U41mHgLbMhKeLqJG1CZfMLNTBtrKtzHv4mUYbB4dzfCkq7GqhXEheyIUlC2vg3uSI mx7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3t0yi8e+wp4/Ow/hSy+y/91MJtDT3XTA8efRc1/FRWg=; b=P9bk8E1o68Ecn1FK0xfVFGqmrPgTtfG5/+eeoqFZRJEcuwRSbmhHsv0WFu96qircGw Sk4+vd2X8zYlxXDGggzCxZT/px7etVeNMwY4VYwh++Vi/FGOP4oMXZDmM7Mvk4Kgoqyp ljf8T1WUS3+Sism0ZboQYBXgij/W2bCxrQ+bDoEBkfzMTrMm+VRX4wMS3s4ifYBFpvc0 6MFr4RcuPVFZd/g94pmIj4EOD5DCEjYPV21lEX9p89K9NMSWNn5zj2RtUxbAJhvvo5DH LdzcWI7/skKSrKr5K8DUA2xbxG0xTZnu5qU+CmhJ+p5uWxFT9XLMvGfSN0LxhzKAiupM zFSg== X-Gm-Message-State: APjAAAVayPHaomDdPEagyVvp1fefDEkk0M24tTM0+B1RE5W7d6134UKz gfH8PQ/D4KyKkqekT/0xnD3A8ZZeTiAOXg== X-Google-Smtp-Source: APXvYqxm73vvXOOd0ejPUbf86bRnCnXUJuBcWcKfNU74JmdfqKUiFFeEBpvDTKwpwL1/JCYwLCUv3w== X-Received: by 2002:a65:464e:: with SMTP id k14mr34003471pgr.141.1572919498407; Mon, 04 Nov 2019 18:04:58 -0800 (PST) Received: from sol.lan (220-235-109-115.dyn.iinet.net.au. [220.235.109.115]) by smtp.gmail.com with ESMTPSA id r184sm11641909pfc.106.2019.11.04.18.04.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Nov 2019 18:04:57 -0800 (PST) From: Kent Gibson To: linux-gpio@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, bamv2005@gmail.com Cc: drew@pdp7.com, thomas.petazzoni@bootlin.com, Kent Gibson Subject: [PATCH v6 2/7] gpiolib: add support for pull up/down to lineevent_create Date: Tue, 5 Nov 2019 10:04:24 +0800 Message-Id: <20191105020429.18942-3-warthog618@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191105020429.18942-1-warthog618@gmail.com> References: <20191105020429.18942-1-warthog618@gmail.com> MIME-Version: 1.0 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add support for pull up/down to lineevent_create. Use cases include receiving asynchronous presses from a push button without an external pull up/down. Signed-off-by: Kent Gibson --- drivers/gpio/gpiolib.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 55a8443bd4af..24bdfdd26b85 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -951,6 +951,10 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW) set_bit(FLAG_ACTIVE_LOW, &desc->flags); + if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) + set_bit(FLAG_PULL_DOWN, &desc->flags); + if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP) + set_bit(FLAG_PULL_UP, &desc->flags); ret = gpiod_direction_input(desc); if (ret)