From patchwork Sat Sep 24 01:56:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuan Can X-Patchwork-Id: 12987324 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 A32A3C07E9D for ; Sat, 24 Sep 2022 01:59:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D234910E41C; Sat, 24 Sep 2022 01:59:48 +0000 (UTC) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2010210E412 for ; Sat, 24 Sep 2022 01:58:54 +0000 (UTC) Received: from dggpeml500024.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MZBrw0pZXzHtdk; Sat, 24 Sep 2022 09:54:08 +0800 (CST) Received: from huawei.com (10.175.112.208) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sat, 24 Sep 2022 09:58:51 +0800 From: Yuan Can To: , , , , , , , Subject: [PATCH 09/10] drm/panel: s6d16d0: Use dev_err_probe() to simplify code Date: Sat, 24 Sep 2022 01:56:15 +0000 Message-ID: <20220924015616.34293-10-yuancan@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220924015616.34293-1-yuancan@huawei.com> References: <20220924015616.34293-1-yuancan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.112.208] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpeml500024.china.huawei.com (7.185.36.10) X-CFilter-Loop: Reflected X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In the probe path, dev_err() can be replaced with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. It also sets the defer probe reason which can be checked later through debugfs. Signed-off-by: Yuan Can --- drivers/gpu/drm/panel/panel-samsung-s6d16d0.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c b/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c index 008e2b0d6652..2900b2c879dc 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c @@ -193,12 +193,9 @@ static int s6d16d0_probe(struct mipi_dsi_device *dsi) /* This asserts RESET by default */ s6->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(s6->reset_gpio)) { - ret = PTR_ERR(s6->reset_gpio); - if (ret != -EPROBE_DEFER) - dev_err(dev, "failed to request GPIO (%d)\n", ret); - return ret; - } + if (IS_ERR(s6->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(s6->reset_gpio), + "failed to request GPIO\n"); drm_panel_init(&s6->panel, dev, &s6d16d0_drm_funcs, DRM_MODE_CONNECTOR_DSI);