From patchwork Fri Feb 4 17:38:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Dooks X-Patchwork-Id: 12735334 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B85DCC4332F for ; Fri, 4 Feb 2022 17:38:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238132AbiBDRin (ORCPT ); Fri, 4 Feb 2022 12:38:43 -0500 Received: from imap2.colo.codethink.co.uk ([78.40.148.184]:58386 "EHLO imap2.colo.codethink.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243667AbiBDRil (ORCPT ); Fri, 4 Feb 2022 12:38:41 -0500 Received: from [167.98.27.226] (helo=rainbowdash) by imap2.colo.codethink.co.uk with esmtpsa (Exim 4.92 #3 (Debian)) id 1nG2Xa-0006Bi-R8; Fri, 04 Feb 2022 17:38:34 +0000 Received: from ben by rainbowdash with local (Exim 4.95) (envelope-from ) id 1nG2Xa-001BJQ-FL; Fri, 04 Feb 2022 17:38:34 +0000 From: Ben Dooks To: paul.walmsley@sifive.com, greentime.hu@sifive.com Cc: lorenzo.pieralisi@arm.com, robh@kernel.org, kw@linux.com, bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Ben Dooks Subject: [PATCH] PCI: fu740: fix finding gpios Date: Fri, 4 Feb 2022 17:38:21 +0000 Message-Id: <20220204173821.281784-1-ben.dooks@codethink.co.uk> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org The calls to devm_gpiod_get_optional() have the -gpios on the name. This means the pcie driver is not finding the necessary reset or power gpios to allow the pcie devices on the SiFive Unmatched boards. Note, this was workng around 5.16 and may not have been broken? There is still an issue if uboot has not probed the pcie bus then there are no pcie devices shown when Linux is started. Signed-off-by: Ben Dooks --- drivers/pci/controller/dwc/pcie-fu740.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-fu740.c b/drivers/pci/controller/dwc/pcie-fu740.c index 00cde9a248b5..842b7202b96e 100644 --- a/drivers/pci/controller/dwc/pcie-fu740.c +++ b/drivers/pci/controller/dwc/pcie-fu740.c @@ -259,11 +259,11 @@ static int fu740_pcie_probe(struct platform_device *pdev) return PTR_ERR(afp->mgmt_base); /* Fetch GPIOs */ - afp->reset = devm_gpiod_get_optional(dev, "reset-gpios", GPIOD_OUT_LOW); + afp->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(afp->reset)) return dev_err_probe(dev, PTR_ERR(afp->reset), "unable to get reset-gpios\n"); - afp->pwren = devm_gpiod_get_optional(dev, "pwren-gpios", GPIOD_OUT_LOW); + afp->pwren = devm_gpiod_get_optional(dev, "pwren", GPIOD_OUT_LOW); if (IS_ERR(afp->pwren)) return dev_err_probe(dev, PTR_ERR(afp->pwren), "unable to get pwren-gpios\n");