From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 28755C3A5A8 for ; Wed, 4 Sep 2019 16:11:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EB96520820 for ; Wed, 4 Sep 2019 16:11:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567613493; bh=g+8gN4To4ZyjBJu5S9PnPsLOBXeOcULykk1z9+yLU+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=fkTKRn7Tmo/87fGMPO9tOw1c8GM7Vr6ES3wlPXT7QSwfo6cQ8I0QQZ+JGnFymqTHu tLnj5eR9kjfIxNjADN9y88wp4GSPweapERxgxP0rPTG0owsvDECBi62jS3pyM4PZKt G7bzmJiwQDXvPf0qrHrNa9MIYCrCrZxY+1p/L9rE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732060AbfIDQAa (ORCPT ); Wed, 4 Sep 2019 12:00:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:35316 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732697AbfIDQA2 (ORCPT ); Wed, 4 Sep 2019 12:00:28 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 69F7B2087E; Wed, 4 Sep 2019 16:00:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567612827; bh=g+8gN4To4ZyjBJu5S9PnPsLOBXeOcULykk1z9+yLU+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zsT4LfP+88Ex4RM/k99J3AGpB7sqmYvLX8GiPsZDWDvZupFRZXKt7d0i0sUJPpp7n y6ifqQ84bxzLeIfR7bWJsWeUG61agnZksrK/KXito2BHSFI/MT0LCV51pzw5Vd5AZq 4Q3/6FU88yDLoBIkAa1nx3PTz0wEbH6uk24BFosE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Phil Reid , Moritz Fischer , Sasha Levin , linux-fpga@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 15/52] fpga: altera-ps-spi: Fix getting of optional confd gpio Date: Wed, 4 Sep 2019 11:59:27 -0400 Message-Id: <20190904160004.3671-15-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190904160004.3671-1-sashal@kernel.org> References: <20190904160004.3671-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Phil Reid [ Upstream commit dec43da46f63eb71f519d963ba6832838e4262a3 ] Currently the driver does not handle EPROBE_DEFER for the confd gpio. Use devm_gpiod_get_optional() instead of devm_gpiod_get() and return error codes from altera_ps_probe(). Fixes: 5692fae0742d ("fpga manager: Add altera-ps-spi driver for Altera FPGAs") Signed-off-by: Phil Reid Signed-off-by: Moritz Fischer Signed-off-by: Sasha Levin --- drivers/fpga/altera-ps-spi.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c index 24b25c6260366..4925cae7dcdde 100644 --- a/drivers/fpga/altera-ps-spi.c +++ b/drivers/fpga/altera-ps-spi.c @@ -207,7 +207,7 @@ static int altera_ps_write_complete(struct fpga_manager *mgr, return -EIO; } - if (!IS_ERR(conf->confd)) { + if (conf->confd) { if (!gpiod_get_raw_value_cansleep(conf->confd)) { dev_err(&mgr->dev, "CONF_DONE is inactive!\n"); return -EIO; @@ -265,10 +265,13 @@ static int altera_ps_probe(struct spi_device *spi) return PTR_ERR(conf->status); } - conf->confd = devm_gpiod_get(&spi->dev, "confd", GPIOD_IN); + conf->confd = devm_gpiod_get_optional(&spi->dev, "confd", GPIOD_IN); if (IS_ERR(conf->confd)) { - dev_warn(&spi->dev, "Not using confd gpio: %ld\n", - PTR_ERR(conf->confd)); + dev_err(&spi->dev, "Failed to get confd gpio: %ld\n", + PTR_ERR(conf->confd)); + return PTR_ERR(conf->confd); + } else if (!conf->confd) { + dev_warn(&spi->dev, "Not using confd gpio"); } /* Register manager with unique name */ -- 2.20.1