From patchwork Fri Sep 15 08:53:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 13386579 X-Patchwork-Delegate: kieran@bingham.xyz 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7279AEE644D for ; Fri, 15 Sep 2023 08:54:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233213AbjIOIye (ORCPT ); Fri, 15 Sep 2023 04:54:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48684 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233314AbjIOIyb (ORCPT ); Fri, 15 Sep 2023 04:54:31 -0400 Received: from andre.telenet-ops.be (andre.telenet-ops.be [IPv6:2a02:1800:120:4::f00:15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B557D2D46 for ; Fri, 15 Sep 2023 01:54:18 -0700 (PDT) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:7135:da8b:ba1d:1a7c]) by andre.telenet-ops.be with bizsmtp id m8uE2A00N3q21w7018uEer; Fri, 15 Sep 2023 10:54:16 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtp (Exim 4.95) (envelope-from ) id 1qh4aJ-003lGu-Id; Fri, 15 Sep 2023 10:54:14 +0200 Received: from geert by rox.of.borg with local (Exim 4.95) (envelope-from ) id 1qh4ac-00Gdbt-IE; Fri, 15 Sep 2023 10:54:14 +0200 From: Geert Uytterhoeven To: Laurent Pinchart , Kieran Bingham , David Airlie , Daniel Vetter , Thomas Zimmermann , Magnus Damm Cc: dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven , Laurent Pinchart Subject: [PATCH v4 16/41] drm: renesas: shmobile: Improve error handling Date: Fri, 15 Sep 2023 10:53:31 +0200 Message-Id: <6dfac76e5b1c7dda3f96801ce83845a4235e2ccd.1694767209.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Prepare for DT conversion, where panel probe can be deferred, by streamlining error propagation and handling: - Use dev_err_probe() to avoid printing error messages in case of probe deferral, - Propagate errors where needed. Signed-off-by: Geert Uytterhoeven Reviewed-by: Laurent Pinchart --- v4: - No changes, v3: - No changes, v2: - Add Reviewed-by. --- drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c | 3 ++- drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c | 14 +++++++++++--- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c index 9c3d8b3cf57d5eb6..399fedd42271cb49 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c @@ -253,7 +253,8 @@ static int shmob_drm_probe(struct platform_device *pdev) ret = shmob_drm_modeset_init(sdev); if (ret < 0) { - dev_err(&pdev->dev, "failed to initialize mode setting\n"); + dev_err_probe(&pdev->dev, ret, + "failed to initialize mode setting\n"); goto err_free_drm_dev; } diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c index 3051318ddc7999bc..1a62e7f8a8a9e6df 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c @@ -157,9 +157,17 @@ int shmob_drm_modeset_init(struct shmob_drm_device *sdev) if (ret) return ret; - shmob_drm_crtc_create(sdev); - shmob_drm_encoder_create(sdev); - shmob_drm_connector_create(sdev, &sdev->encoder); + ret = shmob_drm_crtc_create(sdev); + if (ret < 0) + return ret; + + ret = shmob_drm_encoder_create(sdev); + if (ret < 0) + return ret; + + ret = shmob_drm_connector_create(sdev, &sdev->encoder); + if (ret < 0) + return ret; drm_kms_helper_poll_init(sdev->ddev);