From patchwork Tue Oct 17 10:16:19 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffy Chen X-Patchwork-Id: 10011549 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 644AA600CC for ; Tue, 17 Oct 2017 10:16:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 552122883B for ; Tue, 17 Oct 2017 10:16:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 49F1E2883D; Tue, 17 Oct 2017 10:16:59 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED 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 D9F052883B for ; Tue, 17 Oct 2017 10:16:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 395B6891BA; Tue, 17 Oct 2017 10:16:58 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from regular1.263xmail.com (regular1.263xmail.com [211.150.99.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 13294891BA for ; Tue, 17 Oct 2017 10:16:56 +0000 (UTC) Received: from jeffy.chen?rock-chips.com (unknown [192.168.167.152]) by regular1.263xmail.com (Postfix) with ESMTP id 0A1517F; Tue, 17 Oct 2017 18:16:53 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 432FA393; Tue, 17 Oct 2017 18:16:48 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: <31ac75db6c1a0ab819ac76c855bd3636> X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 288426EBB6F; Tue, 17 Oct 2017 18:16:51 +0800 (CST) From: Jeffy Chen To: linux-kernel@vger.kernel.org Subject: [RFC PATCH v4 3/8] drm/rockchip: dw-mipi-dsi: Fix error handling path Date: Tue, 17 Oct 2017 18:16:19 +0800 Message-Id: <20171017101624.12506-4-jeffy.chen@rock-chips.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171017101624.12506-1-jeffy.chen@rock-chips.com> References: <20171017101624.12506-1-jeffy.chen@rock-chips.com> Cc: dmitry.torokhov@gmail.com, briannorris@chromium.org, rjw@rjwysocki.net, dianders@chromium.org, dri-devel@lists.freedesktop.org, tfiga@chromium.org, linux-rockchip@lists.infradead.org, Jeffy Chen , broonie@kernel.org, linux-arm-kernel@lists.infradead.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 Add missing pm_runtime_disable() in bind()'s error handling path. Also cleanup encoder & connector in unbind(). Fixes: 80a9a059d4e4 ("drm/rockchip/dsi: add dw-mipi power domain support") Signed-off-by: Jeffy Chen --- Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index b15755b6129c..a17ff0f6f489 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -1282,7 +1282,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, ret = dw_mipi_dsi_register(drm, dsi); if (ret) { DRM_DEV_ERROR(dev, "Failed to register mipi_dsi: %d\n", ret); - goto err_pllref; + goto err_disable_pllref; } pm_runtime_enable(dev); @@ -1292,23 +1292,24 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, ret = mipi_dsi_host_register(&dsi->dsi_host); if (ret) { DRM_DEV_ERROR(dev, "Failed to register MIPI host: %d\n", ret); - goto err_cleanup; + goto err_disable_pm_runtime; } if (!dsi->panel) { ret = -EPROBE_DEFER; - goto err_mipi_dsi_host; + goto err_unreg_mipi_dsi_host; } dev_set_drvdata(dev, dsi); return 0; -err_mipi_dsi_host: +err_unreg_mipi_dsi_host: mipi_dsi_host_unregister(&dsi->dsi_host); -err_cleanup: +err_disable_pm_runtime: + pm_runtime_disable(dev); drm_encoder_cleanup(&dsi->encoder); drm_connector_cleanup(&dsi->connector); -err_pllref: +err_disable_pllref: clk_disable_unprepare(dsi->pllref_clk); return ret; } @@ -1320,6 +1321,10 @@ static void dw_mipi_dsi_unbind(struct device *dev, struct device *master, mipi_dsi_host_unregister(&dsi->dsi_host); pm_runtime_disable(dev); + + dsi->connector.funcs->destroy(&dsi->connector); + dsi->encoder.funcs->destroy(&dsi->encoder); + clk_disable_unprepare(dsi->pllref_clk); }