From patchwork Thu Sep 16 10:56:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12498703 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 13088C433EF for ; Thu, 16 Sep 2021 10:59:04 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D676061212 for ; Thu, 16 Sep 2021 10:59:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D676061212 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=uqkKuM9G3moS+6R+rFmItjWuxYS4JtEtGfErzXqZr8g=; b=tE9EY0rzfZ7tlx kayUuCtRiIxYp/0P2Ik0Z/EZF/h4ak3giP/mT/rioNT1cUfB3CjoxVAC54+nKSateBn8e42x27D3U Pjwj4q9fjJ0R7DK1vHY9io2nb9RAZxHM4JpBZFvfYI36Yl7ZFaVoAGj48jxl9vgqe8cVFjVm1auE6 1bu0jDreM5dH/dWlrh9mfuPSAJ1K9zFVTosE4Zm4Sxvt4BbB8BxZ2ty1SlL3OHVV/aAeaUusOKsnY ghkJSHpz4R+b5c0lB5q3msydwCm1w1A7lqB0D8ZrzkHxoTpXdx63ZYlhJW92f67iji/PwPK9mz02f buN6YYLP4rqcSrahGgaw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mQp4M-00AuZZ-E0; Thu, 16 Sep 2021 10:56:42 +0000 Received: from mx22.baidu.com ([220.181.50.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mQp4H-00AuWi-1l for linux-arm-kernel@lists.infradead.org; Thu, 16 Sep 2021 10:56:39 +0000 Received: from BC-Mail-Ex11.internal.baidu.com (unknown [172.31.51.51]) by Forcepoint Email with ESMTPS id 6157DCA3F27F65723DA1; Thu, 16 Sep 2021 18:56:31 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-Ex11.internal.baidu.com (172.31.51.51) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Thu, 16 Sep 2021 18:56:30 +0800 Received: from LAPTOP-UKSR4ENP.internal.baidu.com (172.31.63.8) by BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Thu, 16 Sep 2021 18:56:30 +0800 From: Cai Huoqing To: CC: Maxime Ripard , Chen-Yu Tsai , "David Airlie" , Daniel Vetter , Jernej Skrabec , , , , Subject: [PATCH] drm/sun4i: dsi: Make use of the helper function dev_err_probe() Date: Thu, 16 Sep 2021 18:56:24 +0800 Message-ID: <20210916105625.12109-1-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex15.internal.baidu.com (172.31.51.55) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210916_035638_235959_1E842BA6 X-CRM114-Status: UNSURE ( 9.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by: Cai Huoqing --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 4f5efcace68e..be60b16bcea9 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -1128,10 +1128,9 @@ static int sun6i_dsi_probe(struct platform_device *pdev) } dsi->regulator = devm_regulator_get(dev, "vcc-dsi"); - if (IS_ERR(dsi->regulator)) { - dev_err(dev, "Couldn't get VCC-DSI supply\n"); - return PTR_ERR(dsi->regulator); - } + if (IS_ERR(dsi->regulator)) + return dev_err_probe(dev, PTR_ERR(dsi->regulator), + "Couldn't get VCC-DSI supply\n"); dsi->reset = devm_reset_control_get_shared(dev, NULL); if (IS_ERR(dsi->reset)) { @@ -1146,10 +1145,9 @@ static int sun6i_dsi_probe(struct platform_device *pdev) } dsi->bus_clk = devm_clk_get(dev, bus_clk_name); - if (IS_ERR(dsi->bus_clk)) { - dev_err(dev, "Couldn't get the DSI bus clock\n"); - return PTR_ERR(dsi->bus_clk); - } + if (IS_ERR(dsi->bus_clk)) + return dev_err_probe(dev, PTR_ERR(dsi->bus_clk), + "Couldn't get the DSI bus clock\n"); ret = regmap_mmio_attach_clk(dsi->regs, dsi->bus_clk); if (ret)