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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY, 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 4C1F3C10F00 for ; Sat, 30 Mar 2019 09:28:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 24A4D218A3 for ; Sat, 30 Mar 2019 09:28:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730601AbfC3J2o (ORCPT ); Sat, 30 Mar 2019 05:28:44 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:9398 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1730372AbfC3J2k (ORCPT ); Sat, 30 Mar 2019 05:28:40 -0400 X-UUID: ecd17a923089409a8a0249dc810b0a73-20190330 X-UUID: ecd17a923089409a8a0249dc810b0a73-20190330 Received: from mtkcas35.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 1537852559; Sat, 30 Mar 2019 17:28:34 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 30 Mar 2019 17:28:32 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sat, 30 Mar 2019 17:28:32 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman CC: Matthias Brugger , Chunfeng Yun , , , , , Minas Harutyunyan Subject: [PATCH 4/5] usb: dwc2: get optional clock by devm_clk_get_optional() Date: Sat, 30 Mar 2019 17:28:19 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <2ec86ffd7de45dabaa7257019a79f1e80751934c.1553937592.git.chunfeng.yun@mediatek.com> References: <2ec86ffd7de45dabaa7257019a79f1e80751934c.1553937592.git.chunfeng.yun@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use devm_clk_get_optional() to get optional clock Cc: Minas Harutyunyan Signed-off-by: Chunfeng Yun --- drivers/usb/dwc2/platform.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index c0b64d483552..9aa9682a5cd2 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -284,10 +284,10 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) } /* Clock */ - hsotg->clk = devm_clk_get(hsotg->dev, "otg"); + hsotg->clk = devm_clk_get_optional(hsotg->dev, "otg"); if (IS_ERR(hsotg->clk)) { - hsotg->clk = NULL; - dev_dbg(hsotg->dev, "cannot get otg clock\n"); + dev_err(hsotg->dev, "cannot get otg clock\n"); + return PTR_ERR(hsotg->clk); } /* Regulators */ -- 2.20.1