From patchwork Tue Mar 22 14:30:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jules Maselbas X-Patchwork-Id: 12788591 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 74739C433F5 for ; Tue, 22 Mar 2022 14:35:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237637AbiCVOgn (ORCPT ); Tue, 22 Mar 2022 10:36:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237585AbiCVOgm (ORCPT ); Tue, 22 Mar 2022 10:36:42 -0400 X-Greylist: delayed 288 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 22 Mar 2022 07:35:10 PDT Received: from fx403.security-mail.net (smtpout140.security-mail.net [85.31.212.143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77C4E6A060 for ; Tue, 22 Mar 2022 07:35:10 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by fx403.security-mail.net (Postfix) with ESMTP id 93BF74FE6F9 for ; Tue, 22 Mar 2022 15:30:23 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kalray.eu; s=sec-sig-email; t=1647959423; bh=6/vdjKdj3TBAacD39r/JYj7DZ/ZJcRrY8/Jra+61PTU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=u3yHab9b++YiVwoxxmMfdFIC9f97gIF1w3yAg91I5af363HCUGoQ3Rgl2TfgTyNbg /T4tS6eNVxlNRL1Yx7MLyi4dd9SYwKOCy8tjQWnoSYVT/L5KscEDpXK1RfeimCQph3 PjiVBirtK9C8tUu13lhgZwIpv30lpLTBHmxFHapY= Received: from fx403 (localhost [127.0.0.1]) by fx403.security-mail.net (Postfix) with ESMTP id 383E14FE695; Tue, 22 Mar 2022 15:30:22 +0100 (CET) X-Virus-Scanned: E-securemail Secumail-id: <90bf.6239dd7c.7b214.0> Received: from zimbra2.kalray.eu (unknown [217.181.231.53]) by fx403.security-mail.net (Postfix) with ESMTPS id 2DD554FE638; Tue, 22 Mar 2022 15:30:20 +0100 (CET) Received: from zimbra2.kalray.eu (localhost [127.0.0.1]) by zimbra2.kalray.eu (Postfix) with ESMTPS id 448AE27E043B; Tue, 22 Mar 2022 15:30:20 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zimbra2.kalray.eu (Postfix) with ESMTP id 2EAC627E0439; Tue, 22 Mar 2022 15:30:20 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.10.3 zimbra2.kalray.eu 2EAC627E0439 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kalray.eu; s=32AE1B44-9502-11E5-BA35-3734643DEF29; t=1647959420; bh=xBNbec84HSSpoeLNL9eQD9nc7AhHGc6JxV8Ln5sjJUk=; h=From:To:Date:Message-Id; b=R6qfCWaaFuZ2xQAGLUKK8VyELAKqUdtu8vp062E3Dch26xKFFpLwkQxPV215/jj7Y BD+mkHpO4EC6wibc2uq8o69mQ0dxRf5WY197QgndP1X4rqpTt7QQwA97nvbXolMxtp hWUPexmmvwq6RjkbbpZlFWajVxLDzRV2VEUXpO00= Received: from zimbra2.kalray.eu ([127.0.0.1]) by localhost (zimbra2.kalray.eu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id LkN_4kkowPbE; Tue, 22 Mar 2022 15:30:20 +0100 (CET) Received: from tellis.lin.mbt.kalray.eu (unknown [192.168.36.206]) by zimbra2.kalray.eu (Postfix) with ESMTPSA id 1D70827E0436; Tue, 22 Mar 2022 15:30:20 +0100 (CET) From: Jules Maselbas To: linux-usb@vger.kernel.org Cc: Ahmad Fatoum , Minas Harutyunyan , Kishon Vijay Abraham I , Amelie DELAUNAY , Yann Sionneau , Michael Grzeschik , Jules Maselbas Subject: [PATCH 2/2] phy: core: Warn when phy_power_on is called before phy_init Date: Tue, 22 Mar 2022 15:30:11 +0100 Message-Id: <20220322143011.16580-3-jmaselbas@kalray.eu> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220322143011.16580-1-jmaselbas@kalray.eu> References: <20220322143011.16580-1-jmaselbas@kalray.eu> X-Virus-Scanned: by Secumail Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org A warning when the order of phy operation is mixed up by drivers, this is an atempt to make the phy usage more uniform across (usb) drivers. CC: Ahmad Fatoum CC: Amelie DELAUNAY Signed-off-by: Jules Maselbas --- drivers/phy/phy-core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index ed10cbb24b08..2c2c0f073080 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -252,6 +252,9 @@ int phy_init(struct phy *phy) return ret; ret = 0; /* Override possible ret == -ENOTSUPP */ + if (phy->power_count > phy->init_count) + dev_warn(&phy->dev, "phy_power_on was called before phy_init\n"); + mutex_lock(&phy->mutex); if (phy->init_count == 0 && phy->ops->init) { ret = phy->ops->init(phy);