From patchwork Mon Nov 16 07:52:12 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: 11907579 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 682E6697 for ; Mon, 16 Nov 2020 07:55:12 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2254C2227F for ; Mon, 16 Nov 2020 07:55:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DXA/W+BE"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="SV4UAqJ3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2254C2227F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; 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=OHbRum3Z+BUb038BfJh98KJuvY2YZgDvYGfLYwjZbuk=; b=DXA/W+BEZNyEYyIDNrWTYJfZ8 diXRZbuXlofc/DFOb3lC/B6Xw0ql7egb+aMFB4SwL1EQsF1xwwuXwak1MnXZhsf0t87fZ9sxm4O6f RfwZvrO7o9WhW15v1sYHOL4q1UM78wmLCDbRUN6Zq7erICYoMH14iRUQuoMMCuoTGuDcnmGqd4XNK A11w4T2rTE/wWoJC6+2qpBUCAHoYDs1KUds9c1/uFDASBNsKJ3m4A/cFL0BPaSOO33Dsgshd2oiAF W4N/25jxFYNhbHIFiDquIf7lw0iym/SDAQhkPI1g6w/OQ1dSaRJvK1zFclVpXppo/WLywkb6lOn00 2ZH5QV8BQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1keZLs-0006Wm-PE; Mon, 16 Nov 2020 07:55:04 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1keZLg-0006Rv-EO; Mon, 16 Nov 2020 07:54:53 +0000 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 985612227F; Mon, 16 Nov 2020 07:54:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605513290; bh=OwKfTuKSKYuNfz4bpxDopuSuiAxbNH8GnCNtt3jnfq4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SV4UAqJ3/GvudI4C/bJtccFBLeCbmt5tfhhoqzeIjrhMCFWXJeSa5bncjlXDA50Tn uUglydtauKc3wdHaHZ1Nkgf9OwRKvxJZim3ymWdDDmd5O3tQn8bilD6t4bRyj9CqOc W/SAAPttiWDEE6K6yeFJnDnePqtrALkukAaNWitw= Received: by wens.tw (Postfix, from userid 1000) id BF4845FD7E; Mon, 16 Nov 2020 15:54:47 +0800 (CST) From: Chen-Yu Tsai To: Shawn Lin , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Heiko Stuebner Subject: [PATCH 1/4] PCI: rockchip: make ep_gpio optional Date: Mon, 16 Nov 2020 15:52:12 +0800 Message-Id: <20201116075215.15303-2-wens@kernel.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201116075215.15303-1-wens@kernel.org> References: <20201116075215.15303-1-wens@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201116_025452_636012_C1343509 X-CRM114-Status: GOOD ( 14.11 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Chen-Yu Tsai , Johan Jonker , Robin Murphy , linux-arm-kernel@lists.infradead.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.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 --- drivers/pci/controller/pcie-rockchip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pcie-rockchip.c b/drivers/pci/controller/pcie-rockchip.c index 904dec0d3a88..c95950e9004f 100644 --- a/drivers/pci/controller/pcie-rockchip.c +++ b/drivers/pci/controller/pcie-rockchip.c @@ -118,7 +118,7 @@ int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip) } if (rockchip->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);