From patchwork Tue Jul 8 10:14:40 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 4503591 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EF75B9F39B for ; Tue, 8 Jul 2014 10:17:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3507E201ED for ; Tue, 8 Jul 2014 10:17:45 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 61B3B201EC for ; Tue, 8 Jul 2014 10:17:44 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X4SQy-0005au-PY; Tue, 08 Jul 2014 10:15:36 +0000 Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X4SQv-0005TY-KN for linux-arm-kernel@lists.infradead.org; Tue, 08 Jul 2014 10:15:34 +0000 Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:a236:9fff:fe00:814]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1X4SQE-0006Dd-UB; Tue, 08 Jul 2014 12:14:50 +0200 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1X4SQE-00020e-2r; Tue, 08 Jul 2014 12:14:50 +0200 From: Markus Pargmann To: Peter Chen Subject: [PATCH 1/2] usb: ci_hdrc_imx: Return -EINVAL for missing USB PHY Date: Tue, 8 Jul 2014 12:14:40 +0200 Message-Id: <1404814481-7652-1-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.0.0 X-SA-Exim-Connect-IP: 2001:6f8:1178:2:a236:9fff:fe00:814 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140708_031533_880387_AFBE9AE9 X-CRM114-Status: GOOD ( 11.56 ) X-Spam-Score: -0.7 (/) Cc: Michael Grzeschik , Alexander Shishkin , linux-usb@vger.kernel.org, kernel@pengturonix.de, Markus Pargmann , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP -ENODEV is interpreted by the generic driver probing function as a non-matching driver. This leads to a missing probe failure message. Also a missing USB PHY is more of an invalid configuration of the usb driver because it is necessary. This patch returns -EINVAL if devm_usb_get_phy_by_phandle() returned -ENODEV. Signed-off-by: Markus Pargmann --- drivers/usb/chipidea/ci_hdrc_imx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 2e58f8dfd311..65444b02bd68 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -133,6 +133,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0); if (IS_ERR(data->phy)) { ret = PTR_ERR(data->phy); + /* Return -EINVAL if no usbphy is available */ + if (ret == -ENODEV) + ret = -EINVAL; goto err_clk; }