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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 6E766C2D0CE for ; Tue, 21 Jan 2020 10:22:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 41FBB24125 for ; Tue, 21 Jan 2020 10:22:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="iz8vTKO+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729659AbgAUKWs (ORCPT ); Tue, 21 Jan 2020 05:22:48 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:43037 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727220AbgAUKWr (ORCPT ); Tue, 21 Jan 2020 05:22:47 -0500 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00LAI5KJ023923; Tue, 21 Jan 2020 11:22:37 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=B3TTFS6TV+4qGCCLZoDEuyQWL8QSogcND8mYP28OXXo=; b=iz8vTKO+yoxfwOZAs+1AMYyzsilnTsGUYNvdN2QWDxGqyG1ept7I8vIbbRFZ8D7hm6jh 8YNirqrauCV5gR5JF+iTPIYpKeSCCjbe5Q7Ujl5PAlLop7CFm7z8zuiEXmCAXVFQNl/v Qd2gbJSgDLNcG6t48c/dmQukDDSSZygZn5RwEYl9xW813lyHc52TB0WXi2AoH0KOfYux ZxuffcTYVIRLWEqGvPa1cacCBJl0yHRD7zF58mvqZ+GyhS6JTdDv8JDCsifb+sSnb7aJ SdrHXG4tcll79g6wtuHuMbU2EeVDFJOd2sFTraofZL+ChO2hpxG2ca7+okhHGqv12+Bc 4w== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2xkrp26338-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jan 2020 11:22:37 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3BC6D10002A; Tue, 21 Jan 2020 11:22:36 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node1.st.com [10.75.127.16]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 2B6102B187E; Tue, 21 Jan 2020 11:22:36 +0100 (CET) Received: from localhost (10.75.127.45) by SFHDAG6NODE1.st.com (10.75.127.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 21 Jan 2020 11:22:35 +0100 From: Yannick Fertre To: Mauro Carvalho Chehab , Maxime Coquelin , Alexandre Torgue , Yannick Fertre , Etienne Carriere , Hans Verkuil , Benjamin Gaignard , , , , , Philippe Cornu Subject: [PATCH] media: platform: stm32: defer probe for auxiliary clock Date: Tue, 21 Jan 2020 11:22:32 +0100 Message-ID: <1579602152-7432-1-git-send-email-yannick.fertre@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG7NODE1.st.com (10.75.127.19) To SFHDAG6NODE1.st.com (10.75.127.16) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-21_02:2020-01-21,2020-01-21 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Etienne Carriere Change stm32-cec driver to defer probe when auxiliary clock "hdmi-cec" is registered in the system not has not been probed yet. Signed-off-by: Etienne Carriere --- drivers/media/platform/stm32/stm32-cec.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/stm32/stm32-cec.c b/drivers/media/platform/stm32/stm32-cec.c index 8a86b2c..543c9ec 100644 --- a/drivers/media/platform/stm32/stm32-cec.c +++ b/drivers/media/platform/stm32/stm32-cec.c @@ -302,10 +302,14 @@ static int stm32_cec_probe(struct platform_device *pdev) } cec->clk_hdmi_cec = devm_clk_get(&pdev->dev, "hdmi-cec"); + if (IS_ERR(cec->clk_hdmi_cec) && + PTR_ERR(cec->clk_hdmi_cec) == -EPROBE_DEFER) + return -EPROBE_DEFER; + if (!IS_ERR(cec->clk_hdmi_cec)) { ret = clk_prepare(cec->clk_hdmi_cec); if (ret) { - dev_err(&pdev->dev, "Unable to prepare hdmi-cec clock\n"); + dev_err(&pdev->dev, "Can't prepare hdmi-cec clock\n"); return ret; } } -- 2.7.4