From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 31 Jan 2022 09:04:38 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nERfy-001U3E-67 for lore@lore.pengutronix.de; Mon, 31 Jan 2022 09:04:38 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nERfw-000768-Mf for lore@pengutronix.de; Mon, 31 Jan 2022 09:04:37 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SEhxerwJskVgDUC+eR5UYM/hPRnJplAwk+iCWD3VzMU=; b=BoBQ6BYPvRNbIu Pb59uKZ/he5fZieNhZTJwbf4hEk0GxB3jYMZayMp+CY4a6cCBrQQHpKvdEApesgJImhra5R2chd+W ZetoT1I9xGc4zmdwQgYMzhDUQ3qJLjMGGfuqpj69rZ71SNqNrDCKnrx1EdFYE8lTWDqdHKC4DQ8Sc +OnOs9G7v7wbBOJ9jtI9MgzBMqUUH/uZGd8yvgg/3cLL3rlfeyvNxsnEmSyPF9/+gruUQoYzfMNXO mckjXDvCiw5prA9ZwbbPr98AOsY3qsJnUeBmkqSIPNxa/TKpIcAwstYVs9WCJcl4QtgWKASHmjKR2 JdJRjd+HPljew8rDStKg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nERef-008ONU-TV; Mon, 31 Jan 2022 08:03:17 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nEReV-008OKK-Cv for barebox@lists.infradead.org; Mon, 31 Jan 2022 08:03:08 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nEReU-0006lo-2e; Mon, 31 Jan 2022 09:03:06 +0100 Received: from afa by dude.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nEReT-007riI-G0; Mon, 31 Jan 2022 09:03:05 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Date: Mon, 31 Jan 2022 09:02:59 +0100 Message-Id: <20220131080302.1873443-2-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220131080302.1873443-1-a.fatoum@pengutronix.de> References: <20220131080302.1873443-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220131_000307_479405_AA915560 X-CRM114-Status: GOOD ( 11.64 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ahmad Fatoum Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/4] gpiolib: implement gpiod_set_value X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Linux gpiod_set_value is silent if the GPIO descriptor is NULL, but barebox warns about it. Also having gpio_set_value not respect active low/high, while Linux gpiod_set_value respects it is error-prone. Add a new gpiod_set_value function that covers this. gpio == -ENOENT is taken as the dummy value for optional GPIOs. Signed-off-by: Ahmad Fatoum --- include/gpiod.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/gpiod.h b/include/gpiod.h index c8b2cd47a3cb..adac50b4c36d 100644 --- a/include/gpiod.h +++ b/include/gpiod.h @@ -14,7 +14,7 @@ enum gpiod_flags { GPIOD_IN = GPIOF_IN, /* * To change this later to a different logic level (i.e. taking - * active low into account), use gpio_direction_active() + * active low into account), use gpiod_set_value() */ GPIOD_OUT_LOW = GPIOF_OUT_INIT_INACTIVE, GPIOD_OUT_HIGH = GPIOF_OUT_INIT_ACTIVE, @@ -23,4 +23,10 @@ enum gpiod_flags { /* returned gpio descriptor can be passed to any normal gpio_* function */ int gpiod_get(struct device_d *dev, const char *_con_id, enum gpiod_flags flags); +static inline void gpiod_set_value(unsigned gpio, bool value) +{ + if (gpio != -ENOENT) + gpio_direction_active(gpio, value); +} + #endif -- 2.30.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox