From patchwork Wed Nov 18 07:17:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 11918695 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E34DFC63777 for ; Wed, 18 Nov 2020 07:17:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E66A246A6 for ; Wed, 18 Nov 2020 07:17:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="jlfq2kaK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726716AbgKRHRf (ORCPT ); Wed, 18 Nov 2020 02:17:35 -0500 Received: from mail.kernel.org ([198.145.29.99]:54516 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726683AbgKRHRf (ORCPT ); Wed, 18 Nov 2020 02:17:35 -0500 Received: from wens.tw (mirror2.csie.ntu.edu.tw [140.112.30.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2B3AF2466D; Wed, 18 Nov 2020 07:17:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605683854; bh=Yo6ZpFkYXKBk3boUDcQprLNpM/c9l59uyLcqPIeqpNY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jlfq2kaK4KtHb7if+ujXXFifXLFDQpk5mqxoydDv4R6lrU0sbRd8au/cOrKnIUPbb PLqkobdTn2t78/BnodKm22OieiXpiNPohmi/FpkZpQOUfoGuEw3D3vCf0iZF1Coebq 0JAIkSwuXsIfdu5JmhPmB+EH0qeadkHK/+3i2Xuo= Received: by wens.tw (Postfix, from userid 1000) id 7DBDF5FBCC; Wed, 18 Nov 2020 15:17:31 +0800 (CST) From: Chen-Yu Tsai To: Shawn Lin , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Heiko Stuebner Cc: Chen-Yu Tsai , Robin Murphy , Johan Jonker , linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v2 1/4] PCI: rockchip: Make 'ep-gpios' DT property optional Date: Wed, 18 Nov 2020 15:17:21 +0800 Message-Id: <20201118071724.4866-2-wens@kernel.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201118071724.4866-1-wens@kernel.org> References: <20201118071724.4866-1-wens@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Chen-Yu Tsai The Rockchip PCIe controller DT binding clearly states that 'ep-gpios' is an optional property. And indeed there are boards that don't require it. Make the driver follow the binding by using devm_gpiod_get_optional() instead of devm_gpiod_get(). Fixes: e77f847df54c ("PCI: rockchip: Add Rockchip PCIe controller support") Fixes: 956cd99b35a8 ("PCI: rockchip: Separate common code from RC driver") Fixes: 964bac9455be ("PCI: rockchip: Split out rockchip_pcie_parse_dt() to parse DT") Signed-off-by: Chen-Yu Tsai Reviewed-by: Heiko Stuebner is_rc) { - rockchip->ep_gpio = devm_gpiod_get(dev, "ep", GPIOD_OUT_HIGH); + rockchip->ep_gpio = devm_gpiod_get_optional(dev, "ep", GPIOD_OUT_HIGH); if (IS_ERR(rockchip->ep_gpio)) { dev_err(dev, "missing ep-gpios property in node\n"); return PTR_ERR(rockchip->ep_gpio);