From patchwork Fri Aug 25 07:23:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13365102 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 5FC35C3DA66 for ; Fri, 25 Aug 2023 07:24:21 +0000 (UTC) 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=XlKBPQGuhB29kZyuGmnQyRCPBg3YWDIFifcAgP7/uec=; b=MLoqG+hMjTiOxH jsYe0jDgO4Jj7znL2TiSb5IAp5FUxxCcghrwFYeeh2xV+VhH8rmSmKKklwZvirub3PM7siZgjHXta Ro27E7z+6egb7FeaLWGMOxsZb1U+4pXBpgK64pW7HlUFVud6UE+Fz3lg7xyu8lhdfvnZZqu3hXi0o abFyF3GbrsOdwz1iLBx8VG9W/9q2lEQKwFch75ovl8ZWiJ7NDc/MJvo/QWRpWfl3T6CXO5Ujo45Ju kXuzS73QXDHrWl0l/JvYZaBwi/N6diNGlV7Q3lnkSYxJS8q5z8Hmc74UcTZF8/srqsSYobU02lLdz bJPTkgFbrOB99j9T6h2w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRAa-004XHa-2V; Fri, 25 Aug 2023 07:23:48 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qZRAX-004XH7-10 for linux-arm-kernel@lists.infradead.org; Fri, 25 Aug 2023 07:23:47 +0000 Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.56]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RXBDw5qNQzJrrB; Fri, 25 Aug 2023 15:20:32 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Fri, 25 Aug 2023 15:23:39 +0800 From: Jinjie Ruan To: , , Laurent Pinchart , David Airlie , Daniel Vetter , Michal Simek CC: Subject: [PATCH -next] drm: xlnx: zynqmp_dpsub: Use devm_clk_get_enabled() helper function Date: Fri, 25 Aug 2023 15:23:24 +0800 Message-ID: <20230825072324.2809260-1-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_002345_604765_5350281B X-CRM114-Status: GOOD ( 10.50 ) 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 The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code. Signed-off-by: Jinjie Ruan --- drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 88eb33acd5f0..92e61434473f 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -92,16 +92,10 @@ unsigned int zynqmp_dpsub_get_audio_clk_rate(struct zynqmp_dpsub *dpsub) static int zynqmp_dpsub_init_clocks(struct zynqmp_dpsub *dpsub) { - int ret; - - dpsub->apb_clk = devm_clk_get(dpsub->dev, "dp_apb_clk"); - if (IS_ERR(dpsub->apb_clk)) - return PTR_ERR(dpsub->apb_clk); - - ret = clk_prepare_enable(dpsub->apb_clk); - if (ret) { + dpsub->apb_clk = devm_clk_get_enabled(dpsub->dev, "dp_apb_clk"); + if (IS_ERR(dpsub->apb_clk)) { dev_err(dpsub->dev, "failed to enable the APB clock\n"); - return ret; + return PTR_ERR(dpsub->apb_clk); } /* @@ -274,7 +268,6 @@ static int zynqmp_dpsub_probe(struct platform_device *pdev) zynqmp_dp_remove(dpsub); err_pm: pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(dpsub->apb_clk); err_mem: of_reserved_mem_device_release(&pdev->dev); if (!dpsub->drm) @@ -295,7 +288,6 @@ static void zynqmp_dpsub_remove(struct platform_device *pdev) zynqmp_dp_remove(dpsub); pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(dpsub->apb_clk); of_reserved_mem_device_release(&pdev->dev); if (!dpsub->drm)