From patchwork Mon Nov 4 15:38:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 1189019 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="PUkYUlk5"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 476H6C2Pstz9sCJ for ; Tue, 5 Nov 2019 02:39:31 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728392AbfKDPjb (ORCPT ); Mon, 4 Nov 2019 10:39:31 -0500 Received: from mail-pf1-f196.google.com ([209.85.210.196]:46605 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727891AbfKDPja (ORCPT ); Mon, 4 Nov 2019 10:39:30 -0500 Received: by mail-pf1-f196.google.com with SMTP id 193so11121241pfc.13 for ; Mon, 04 Nov 2019 07:39:30 -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=RFonsfzsFJDEDDj0KVoaMXdViXF1/jFMFFTbqbNe28g=; b=PUkYUlk5lyo4VfBYdLMm+5Y5h7KChZzPk5YmU2Tki8dN4z3c8nrvq+wXuIn+OzhEwg dXdHCfeWO1x9F1MxsiLmRJFd5eJI/iT8d0t1Egx4rYGzFoJrtbeZRwCq/9F7vdyLLDUT bmjSBEYVZwgy9xNTRmcX5vCZ/Pd99Y5cYm6H6N4GDEAu3Zoi6NW+GjWapUOzVWM98sJ/ ivi+YA4y+qzg7nBJY6lPr8wgukXP5nWHE5ntexq0u3vf8yg+kOpJVxqnheyWYsPlPfC6 2sad1u2OKltSIDDiRnm9icnu07PVP14PolOVpgXuikHj+e8qdBhAohuUJek/vz2hBVUd 03SQ== 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=RFonsfzsFJDEDDj0KVoaMXdViXF1/jFMFFTbqbNe28g=; b=preUAMOUHE0pnZxBp3rxwt38miZmJrCfR6cp35vxBFqRGWBYJiqBfTODpkJmbJ/fYJ nJh0l7O/VwwjBSOhIU0qeReKnLL38luLaR8WB9CFN0eSLMeFlaLcnp/DUrn9BSZKF9ic 5RuH4F3+LfsDUbAdtjf5KJJwjfaglZ2V6Bl+IyryfgEwL7w7EhCh+s18pJ0qCDJsjHyA dZmc1VcyG2hszXITotCZ+D1FswBiey1kjlr7xBu/YOrXSCFstRsAk/tSbUKP67RsAHoA jX+c/2YsvoE0ouZyYyTVv6t+DDSUmBOXZo7TcflK6VMmRU1X292tGOCQfl/560/mmmNF wUIQ== X-Gm-Message-State: APjAAAU0FvPtqm/Lf4KF4midbSdp6HoY4gPnUju7FXOAu+cT2DXyo/ae 5QITax2kjaLIlCsb6H891fPcljKo+sGdxw== X-Google-Smtp-Source: APXvYqxrh8fCSK6FrZso+g7Dp2Ljr+UUDAoVhOm3JcfAA5YNMIZwKFkZ4vzIUKECRl3lVNZ+YBPokw== X-Received: by 2002:a62:2942:: with SMTP id p63mr24507019pfp.110.1572881969764; Mon, 04 Nov 2019 07:39:29 -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 a66sm5819761pfb.166.2019.11.04.07.39.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Nov 2019 07:39:29 -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 v5 2/7] gpiolib: add support for pull up/down to lineevent_create Date: Mon, 4 Nov 2019 23:38:36 +0800 Message-Id: <20191104153841.16911-3-warthog618@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191104153841.16911-1-warthog618@gmail.com> References: <20191104153841.16911-1-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 035022bf0ef9..7dfbb3676ee0 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -950,6 +950,10 @@ 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)