From patchwork Fri Jun 30 21:14:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 9820505 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E65956035F for ; Fri, 30 Jun 2017 21:15:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D56C828516 for ; Fri, 30 Jun 2017 21:15:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C66672853B; Fri, 30 Jun 2017 21:15:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4B40328516 for ; Fri, 30 Jun 2017 21:15:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 24B2C6E865; Fri, 30 Jun 2017 21:15:09 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-qk0-x244.google.com (mail-qk0-x244.google.com [IPv6:2607:f8b0:400d:c09::244]) by gabe.freedesktop.org (Postfix) with ESMTPS id 19AC26E865 for ; Fri, 30 Jun 2017 21:15:07 +0000 (UTC) Received: by mail-qk0-x244.google.com with SMTP id v143so4164587qkb.3 for ; Fri, 30 Jun 2017 14:15:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=95J8xvczzFAqK+zGhBG5lV5ecriBBUFzSs+JcjJxbfo=; b=naUV72elBvHQ5QEBuL5fa8Dc7ilD+KL0bWS9KMeInxlPqrVwxg4/+mzzFCEg6w1etc xVD2ypLvsJvkTexafJf7AxtfXhmiyWMdYLzsfJDOp7lYtxrzVkupdtJJv2y7SlfrLCN+ 5BtVYj/zeu2A8GfKp78cf2r8sT9CLYr4FMEfP+46XWu+xbEXKzMeKJxqv7EJloINSF0N RBkkh8GqV9S9ksXpWLCJeHSyU9u5EigRjtHToCPSSqKQ6bf1wo+zs/5eOqfiCdvCj/Bg jjnUBDzK8tjf2zNk8m1946jubUTzzEguI6hLd2KUzZRVCoBBaqyXyq0gsNjef3dkreKw 89Uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=95J8xvczzFAqK+zGhBG5lV5ecriBBUFzSs+JcjJxbfo=; b=S9RmF+Gx382HRFPsqrA9QCGhD8f5HX9L23uknC66UzvjJzSQ2lZJjEiaCpMQlDbzoS Sc6ZBrbGwyaxo9ykZEtP8r28cXccygQE57lvfaAilnkk5fL9wf05VWSJ0QRpbWvFms6i 0wGyEu6msOpkRgDCh8dTZv+lEG9OMgvQ0rShr0COyvmvDZNIhBOrX1x9vDBAKHgyBS9q FbUmgD/3LLM50GOoZRRmA/ytBXUKsns1pRUCOxHk3GUQTl8McS8BORlRAaQMUtHtTaeb sb8dKxosluagNgylYeWvgjRYS/3QPebcH/jSeQqBeVTwWIkQldEyK57o8iinR8sXkOJj Ah6Q== X-Gm-Message-State: AKS2vOwyz+1oRpe/UWC0FZJ5/OtppZQL5IvDYX2LvSRHmehMTOmigB2g jXwXDR9onDrOKw== X-Received: by 10.55.54.196 with SMTP id d187mr29846058qka.96.1498857306229; Fri, 30 Jun 2017 14:15:06 -0700 (PDT) Received: from localhost.localdomain ([187.180.183.161]) by smtp.gmail.com with ESMTPSA id t11sm6675924qke.69.2017.06.30.14.15.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 30 Jun 2017 14:15:05 -0700 (PDT) From: Fabio Estevam To: thierry.reding@gmail.com Subject: [PATCH] drm/panel: simple: Skip error message on deferred probe Date: Fri, 30 Jun 2017 18:14:46 -0300 Message-Id: <1498857286-10820-1-git-send-email-festevam@gmail.com> X-Mailer: git-send-email 2.7.4 Cc: Fabio Estevam , dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Fabio Estevam When enable_gpio is provided via an I2C or SPI expander, it may not be available when panel-simple probes leading to the following error: panel-simple panel: failed to request GPIO: -517 As this error message is not very useful to the end user, skip printing it in the case of deferred probe. Signed-off-by: Fabio Estevam --- drivers/gpu/drm/panel/panel-simple.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 474fa75..9469c4d 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -315,7 +315,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) GPIOD_OUT_LOW); if (IS_ERR(panel->enable_gpio)) { err = PTR_ERR(panel->enable_gpio); - dev_err(dev, "failed to request GPIO: %d\n", err); + if (err != -EPROBE_DEFER) + dev_err(dev, "failed to request GPIO: %d\n", err); return err; }