From patchwork Wed Mar 23 11:07:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jules Maselbas X-Patchwork-Id: 12789696 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 4E714C433EF for ; Wed, 23 Mar 2022 11:07:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243739AbiCWLI7 (ORCPT ); Wed, 23 Mar 2022 07:08:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235590AbiCWLI5 (ORCPT ); Wed, 23 Mar 2022 07:08:57 -0400 Received: from fx601.security-mail.net (smtpout140.security-mail.net [85.31.212.146]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7156678077 for ; Wed, 23 Mar 2022 04:07:27 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by fx601.security-mail.net (Postfix) with ESMTP id 11AD83AD0F5 for ; Wed, 23 Mar 2022 12:07:26 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kalray.eu; s=sec-sig-email; t=1648033646; bh=69zZpxa6rBNXrUgok6kJ+TKqaxhS4oyp57/az67O4W8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=sImvwxBjq6c/FGiAOl4UKHrlZU1jqAkqmVJusn58306XmoqE788E19YFZjYx5HTt0 UaIlSG9BEyga9fDJXCQ1RhVBlv9C4r2Mxczs3cRSWiehBofRbnwsWY/EjxdtH3cvji wVBb8XbhQWrUE7ISwbB0+QZCaZZa1mYXE3PbnLGI= Received: from fx601 (localhost [127.0.0.1]) by fx601.security-mail.net (Postfix) with ESMTP id BA9803AD04C; Wed, 23 Mar 2022 12:07:24 +0100 (CET) X-Virus-Scanned: E-securemail Secumail-id: <9ab4.623aff6a.98f3e.0> Received: from zimbra2.kalray.eu (unknown [217.181.231.53]) by fx601.security-mail.net (Postfix) with ESMTPS id 9A2FD3AD034; Wed, 23 Mar 2022 12:07:22 +0100 (CET) Received: from zimbra2.kalray.eu (localhost [127.0.0.1]) by zimbra2.kalray.eu (Postfix) with ESMTPS id 7C7AD27E0444; Wed, 23 Mar 2022 12:07:22 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zimbra2.kalray.eu (Postfix) with ESMTP id 66AF927E0443; Wed, 23 Mar 2022 12:07:22 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.10.3 zimbra2.kalray.eu 66AF927E0443 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kalray.eu; s=32AE1B44-9502-11E5-BA35-3734643DEF29; t=1648033642; bh=lkXmp8lv2v2HiLj/LZtFQoiXYObR1expOxg9dvyWFfo=; h=From:To:Date:Message-Id; b=D3/EWoIWOfLH52PaI873zcLsIBgSg54V93HL1oTICcogFX27728Wp9lYRrBq8KNsR r+gvGRGcaa+RlKDCAatR2KHypy/uwJcP2KZylmMliPSL5TR/5QnQ5pqFxHQmBanbEa jBn+kZknXQqdeILBmEJBsXc2gxTrvUa55fQxQq80= 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 x62y_ZpYuTpT; Wed, 23 Mar 2022 12:07:22 +0100 (CET) Received: from tellis.lin.mbt.kalray.eu (unknown [192.168.36.206]) by zimbra2.kalray.eu (Postfix) with ESMTPSA id 5487E27E0425; Wed, 23 Mar 2022 12:07:22 +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 , Randy Dunlap , Arnd Bergmann , Jules Maselbas Subject: [PATCH v2 3/3] phy: core: Warn when phy_power_on is called before phy_init Date: Wed, 23 Mar 2022 12:07:08 +0100 Message-Id: <20220323110708.8254-4-jmaselbas@kalray.eu> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220323110708.8254-1-jmaselbas@kalray.eu> References: <20220323110708.8254-1-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. Signed-off-by: Jules Maselbas Cc: Ahmad Fatoum Cc: Amelie DELAUNAY Cc: Minas Harutyunyan Cc: Kishon Vijay Abraham I --- change in v2: - no changes 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 cbdad65d2caa..0cb4da62577e 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);