From patchwork Thu May 29 09:28:02 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Inki Dae X-Patchwork-Id: 4263621 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 4B234BF90B for ; Thu, 29 May 2014 09:28:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BB16420114 for ; Thu, 29 May 2014 09:28:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0A741202E5 for ; Thu, 29 May 2014 09:28:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934115AbaE2J2H (ORCPT ); Thu, 29 May 2014 05:28:07 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:24603 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934270AbaE2J2F (ORCPT ); Thu, 29 May 2014 05:28:05 -0400 Received: from epcpsbgr3.samsung.com (u143.gpu120.samsung.co.kr [203.254.230.143]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N6B00506WYRMDC0@mailout2.samsung.com> for linux-samsung-soc@vger.kernel.org; Thu, 29 May 2014 18:28:03 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.115]) by epcpsbgr3.samsung.com (EPCPMTA) with SMTP id 2D.91.14704.2ADF6835; Thu, 29 May 2014 18:28:03 +0900 (KST) X-AuditID: cbfee68f-b7fef6d000003970-d8-5386fda22acf Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 7C.DE.08203.2ADF6835; Thu, 29 May 2014 18:28:02 +0900 (KST) Received: from daeinki-desktop.10.32.193.11 ([10.252.83.67]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N6B0023JWYQB770@mmp1.samsung.com>; Thu, 29 May 2014 18:28:02 +0900 (KST) From: Inki Dae To: airlied@linux.ie, dri-devel@lists.freedesktop.org Cc: linux-samsung-soc@vger.kernel.org, a.hajda@samsung.com, Inki Dae Subject: [PATCH v2] drm/exynos: consider deferred probe case Date: Thu, 29 May 2014 18:28:02 +0900 Message-id: <1401355682-6939-1-git-send-email-inki.dae@samsung.com> X-Mailer: git-send-email 1.7.9.5 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrILMWRmVeSWpSXmKPExsWyRsSkWHfx37Zgg1OnuCxurTvHatF77iST xZWv79ksJt2fwGIx4/w+JgdWj+3fHrB63O8+zuTRt2UVo8fnTXIBLFFcNimpOZllqUX6dglc GWf/bGEteLGNseL/nqXMDYy/pjB2MXJySAiYSEw/u50JwhaTuHBvPVsXIxeHkMBSRolVy16z whTN/3ufBSKxiFHi/5bHjBBON5PE++5OFpAqNgFViYkr7rOB2CICphIdk5aCxZkFYiXO394E FhcWsJG4924NO4jNAlS/Zt5ZsNW8As4Sq28vAYpzAG1TkJgzyQZkvoTAazaJPXffMEHUC0h8 m3yIBaJGVmLTAWaI4yQlDq64wTKBUXABI8MqRtHUguSC4qT0ImO94sTc4tK8dL3k/NxNjMDg PP3vWf8OxrsHrA8xJgONm8gsJZqcDwzuvJJ4Q2MzIwtTE1NjI3NLM9KElcR57z9MChISSE8s Sc1OTS1ILYovKs1JLT7EyMTBKdXAyHHhXljyr1g9tWpnRo01t+9esN/pGLl2ZdHN+Iu1rKuj nkxaePvfxnZX0YnN5ms1uVvbm2Zsyt6g7LWwt/HjG6bjZlFOMd/C3T/yHzpWc+7xCpngiDTn RylXVDwubNbnNtb+kS+kcH5Tb64Rc2wX14Z7Mx3bPD5PFb588P3zIqXAtSGToj7oKbEUZyQa ajEXFScCABPBsopkAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrHIsWRmVeSWpSXmKPExsVy+t9jAd1Ff9uCDfZ2W1rcWneO1aL33Ekm iytf37NZTLo/gcVixvl9TA6sHtu/PWD1uN99nMmjb8sqRo/Pm+QCWKIaGG0yUhNTUosUUvOS 81My89JtlbyD453jTc0MDHUNLS3MlRTyEnNTbZVcfAJ03TJzgBYrKZQl5pQChQISi4uV9O0w TQgNcdO1gGmM0PUNCYLrMTJAAwlrGDPO/tnCWvBiG2PF/z1LmRsYf01h7GLk5JAQMJGY//c+ C4QtJnHh3nq2LkYuDiGBRYwS/7c8ZoRwupkk3nd3glWxCahKTFxxnw3EFhEwleiYtBQsziwQ K3H+9iawuLCAjcS9d2vYQWwWoPo1884ygdi8As4Sq28vAYpzAG1TkJgzyWYCI/cCRoZVjKKp BckFxUnpuYZ6xYm5xaV56XrJ+bmbGMGh/0xqB+PKBotDjAIcjEo8vBKybcFCrIllxZW5hxgl OJiVRHg/XQIK8aYkVlalFuXHF5XmpBYfYkwGWj6RWUo0OR8Yl3kl8YbGJmZGlkbmhhZGxuak CSuJ8x5otQ4UEkhPLEnNTk0tSC2C2cLEwSnVwOjLpvcmX/h8RYhyuM3VnSHNAQlGWUGZJYqb hTluay/ZLnIuICmx5IkIg87jxM2b3iY8Z2w0EZHNXvDmO8fPJPuvDmFcfKm336u27GEWM5va /2f1mZrAr+fe6d789MJK/kvE93X70kMZW/68+l+f36wTHPmCrf1Sik7HR9ObB0z41r4L/XK4 QImlOCPRUIu5qDgRAP34bZLBAgAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch makes sure that exynos drm framework handles deferred probe case correctly. Sub drivers could be probed before resources, clock, regulator, phy or panel, are ready for them so we should make sure that exynos drm core waits until all resources are ready and sub drivers are probed correctly. Chagelog v2: - Make sure that exynos drm core tries to bind sub drivers only in case that they have a pair: crtc and encoder/connector components should be a pair. - Remove unnecessary patch: drm/exynos: mipi-dsi: consider panel driver-deferred probe - Return error type correctly. Signed-off-by: Inki Dae Acked-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_dp_core.c | 18 +++- drivers/gpu/drm/exynos/exynos_drm_dpi.c | 22 ++++- drivers/gpu/drm/exynos/exynos_drm_drv.c | 139 +++++++++++++++++++++++++----- drivers/gpu/drm/exynos/exynos_drm_drv.h | 13 ++- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 41 ++++++--- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 51 ++++++++--- drivers/gpu/drm/exynos/exynos_hdmi.c | 78 ++++++++++++----- drivers/gpu/drm/exynos/exynos_mixer.c | 17 +++- 8 files changed, 304 insertions(+), 75 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c index ff63901..a892586 100644 --- a/drivers/gpu/drm/exynos/exynos_dp_core.c +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c @@ -1328,12 +1328,26 @@ static const struct component_ops exynos_dp_ops = { static int exynos_dp_probe(struct platform_device *pdev) { - return exynos_drm_component_add(&pdev->dev, &exynos_dp_ops); + int ret; + + ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR, + exynos_dp_display.type); + if (ret) + return ret; + + ret = component_add(&pdev->dev, &exynos_dp_ops); + if (ret) + exynos_drm_component_del(&pdev->dev, + EXYNOS_DEVICE_TYPE_CONNECTOR); + + return ret; } static int exynos_dp_remove(struct platform_device *pdev) { - exynos_drm_component_del(&pdev->dev, &exynos_dp_ops); + component_del(&pdev->dev, &exynos_dp_ops); + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); + return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c index a832364..f1b8587 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c @@ -295,9 +295,15 @@ struct exynos_drm_display *exynos_dpi_probe(struct device *dev) struct exynos_dpi *ctx; int ret; + ret = exynos_drm_component_add(dev, + EXYNOS_DEVICE_TYPE_CONNECTOR, + exynos_dpi_display.type); + if (ret) + return ERR_PTR(ret); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) - return NULL; + goto err_del_component; ctx->dev = dev; exynos_dpi_display.ctx = ctx; @@ -306,16 +312,24 @@ struct exynos_drm_display *exynos_dpi_probe(struct device *dev) ret = exynos_dpi_parse_dt(ctx); if (ret < 0) { devm_kfree(dev, ctx); - return NULL; + goto err_del_component; } if (ctx->panel_node) { ctx->panel = of_drm_find_panel(ctx->panel_node); - if (!ctx->panel) + if (!ctx->panel) { + exynos_drm_component_del(dev, + EXYNOS_DEVICE_TYPE_CONNECTOR); return ERR_PTR(-EPROBE_DEFER); + } } return &exynos_dpi_display; + +err_del_component: + exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CONNECTOR); + + return NULL; } int exynos_dpi_remove(struct device *dev) @@ -327,5 +341,7 @@ int exynos_dpi_remove(struct device *dev) encoder->funcs->destroy(encoder); drm_connector_cleanup(&ctx->connector); + exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CONNECTOR); + return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index c5a401ae..72a5de1 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -48,7 +48,10 @@ static LIST_HEAD(drm_component_list); struct component_dev { struct list_head list; - struct device *dev; + struct device *crtc_dev; + struct device *conn_dev; + enum exynos_drm_output_type out_type; + unsigned int dev_type_flag; }; static int exynos_drm_load(struct drm_device *dev, unsigned long flags) @@ -382,22 +385,65 @@ static const struct dev_pm_ops exynos_drm_pm_ops = { }; int exynos_drm_component_add(struct device *dev, - const struct component_ops *ops) + enum exynos_drm_device_type dev_type, + enum exynos_drm_output_type out_type) { struct component_dev *cdev; - int ret; + + if (dev_type != EXYNOS_DEVICE_TYPE_CRTC && + dev_type != EXYNOS_DEVICE_TYPE_CONNECTOR) { + DRM_ERROR("invalid device type.\n"); + return -EINVAL; + } + + mutex_lock(&drm_component_lock); + + /* + * Make sure to check if there is a component which has two device + * objects, for connector and for encoder/connector. + * It should make sure that crtc and encoder/connector drivers are + * ready before exynos drm core binds them. + */ + list_for_each_entry(cdev, &drm_component_list, list) { + if (cdev->out_type == out_type) { + /* + * If crtc and encoder/connector device objects are + * added already just return. + */ + if (cdev->dev_type_flag == (EXYNOS_DEVICE_TYPE_CRTC | + EXYNOS_DEVICE_TYPE_CONNECTOR)) { + mutex_unlock(&drm_component_lock); + return 0; + } + + if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) { + cdev->crtc_dev = dev; + cdev->dev_type_flag |= dev_type; + } + + if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) { + cdev->conn_dev = dev; + cdev->dev_type_flag |= dev_type; + } + + mutex_unlock(&drm_component_lock); + return 0; + } + } + + mutex_unlock(&drm_component_lock); cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); if (!cdev) return -ENOMEM; - ret = component_add(dev, ops); - if (ret) { - kfree(cdev); - return ret; - } + if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) + cdev->crtc_dev = dev; + if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) + cdev->conn_dev = dev; - cdev->dev = dev; + cdev->out_type = out_type; + cdev->dev_type_flag = dev_type; mutex_lock(&drm_component_lock); list_add_tail(&cdev->list, &drm_component_list); @@ -407,23 +453,40 @@ int exynos_drm_component_add(struct device *dev, } void exynos_drm_component_del(struct device *dev, - const struct component_ops *ops) + enum exynos_drm_device_type dev_type) { struct component_dev *cdev, *next; mutex_lock(&drm_component_lock); list_for_each_entry_safe(cdev, next, &drm_component_list, list) { - if (dev == cdev->dev) { + if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) { + if (cdev->crtc_dev == dev) { + cdev->crtc_dev = NULL; + cdev->dev_type_flag &= ~dev_type; + } + } + + if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) { + if (cdev->conn_dev == dev) { + cdev->conn_dev = NULL; + cdev->dev_type_flag &= ~dev_type; + } + } + + /* + * Release cdev object only in case that both of crtc and + * encoder/connector device objects are NULL. + */ + if (!cdev->crtc_dev && !cdev->conn_dev) { list_del(&cdev->list); kfree(cdev); - break; } + + break; } mutex_unlock(&drm_component_lock); - - component_del(dev, ops); } static int compare_of(struct device *dev, void *data) @@ -433,29 +496,61 @@ static int compare_of(struct device *dev, void *data) static int exynos_drm_add_components(struct device *dev, struct master *m) { - unsigned int attached_cnt = 0; struct component_dev *cdev; + unsigned int attach_cnt = 0; mutex_lock(&drm_component_lock); list_for_each_entry(cdev, &drm_component_list, list) { int ret; + /* + * Add components to master only in case that crtc and + * encoder/connector device objects exist. + */ + if (!cdev->crtc_dev || !cdev->conn_dev) + continue; + + attach_cnt++; + mutex_unlock(&drm_component_lock); - ret = component_master_add_child(m, compare_of, cdev->dev); - if (!ret) - attached_cnt++; + /* + * fimd and dpi modules have same device object so add + * only crtc device object in this case. + * + * TODO. if dpi module follows driver-model driver then + * below codes can be removed. + */ + if (cdev->crtc_dev == cdev->conn_dev) { + ret = component_master_add_child(m, compare_of, + cdev->crtc_dev); + if (ret < 0) + return ret; + + goto out_lock; + } + + /* + * Do not chage below call order. + * crtc device first should be added to master because + * connector/encoder need pipe number of crtc when they + * are created. + */ + ret = component_master_add_child(m, compare_of, cdev->crtc_dev); + ret |= component_master_add_child(m, compare_of, + cdev->conn_dev); + if (ret < 0) + return ret; + +out_lock: mutex_lock(&drm_component_lock); } mutex_unlock(&drm_component_lock); - if (!attached_cnt) - return -ENXIO; - - return 0; + return attach_cnt ? 0 : -ENODEV; } static int exynos_drm_bind(struct device *dev) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index e82e620..36535f3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -42,6 +42,13 @@ struct drm_connector; extern unsigned int drm_vblank_offdelay; +/* This enumerates device type. */ +enum exynos_drm_device_type { + EXYNOS_DEVICE_TYPE_NONE, + EXYNOS_DEVICE_TYPE_CRTC, + EXYNOS_DEVICE_TYPE_CONNECTOR, +}; + /* this enumerates display type. */ enum exynos_drm_output_type { EXYNOS_DISPLAY_TYPE_NONE, @@ -354,12 +361,12 @@ void exynos_drm_remove_vidi(void); int exynos_drm_create_enc_conn(struct drm_device *dev, struct exynos_drm_display *display); -struct component_ops; int exynos_drm_component_add(struct device *dev, - const struct component_ops *ops); + enum exynos_drm_device_type dev_type, + enum exynos_drm_output_type out_type); void exynos_drm_component_del(struct device *dev, - const struct component_ops *ops); + enum exynos_drm_device_type dev_type); extern struct platform_driver fimd_driver; extern struct platform_driver dp_driver; diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 84661fe..6302aa6 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1423,10 +1423,16 @@ static int exynos_dsi_probe(struct platform_device *pdev) struct exynos_dsi *dsi; int ret; + ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR, + exynos_dsi_display.type); + if (ret) + return ret; + dsi = devm_kzalloc(&pdev->dev, sizeof(*dsi), GFP_KERNEL); if (!dsi) { dev_err(&pdev->dev, "failed to allocate dsi object.\n"); - return -ENOMEM; + ret = -ENOMEM; + goto err_del_component; } init_completion(&dsi->completed); @@ -1440,7 +1446,7 @@ static int exynos_dsi_probe(struct platform_device *pdev) ret = exynos_dsi_parse_dt(dsi); if (ret) - return ret; + goto err_del_component; dsi->supplies[0].supply = "vddcore"; dsi->supplies[1].supply = "vddio"; @@ -1454,32 +1460,37 @@ static int exynos_dsi_probe(struct platform_device *pdev) dsi->pll_clk = devm_clk_get(&pdev->dev, "pll_clk"); if (IS_ERR(dsi->pll_clk)) { dev_info(&pdev->dev, "failed to get dsi pll input clock\n"); - return -EPROBE_DEFER; + ret = PTR_ERR(dsi->pll_clk); + goto err_del_component; } dsi->bus_clk = devm_clk_get(&pdev->dev, "bus_clk"); if (IS_ERR(dsi->bus_clk)) { dev_info(&pdev->dev, "failed to get dsi bus clock\n"); - return -EPROBE_DEFER; + ret = PTR_ERR(dsi->bus_clk); + goto err_del_component; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); dsi->reg_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(dsi->reg_base)) { dev_err(&pdev->dev, "failed to remap io region\n"); - return PTR_ERR(dsi->reg_base); + ret = PTR_ERR(dsi->reg_base); + goto err_del_component; } dsi->phy = devm_phy_get(&pdev->dev, "dsim"); if (IS_ERR(dsi->phy)) { dev_info(&pdev->dev, "failed to get dsim phy\n"); - return -EPROBE_DEFER; + ret = PTR_ERR(dsi->phy); + goto err_del_component; } dsi->irq = platform_get_irq(pdev, 0); if (dsi->irq < 0) { dev_err(&pdev->dev, "failed to request dsi irq resource\n"); - return dsi->irq; + ret = dsi->irq; + goto err_del_component; } irq_set_status_flags(dsi->irq, IRQ_NOAUTOEN); @@ -1488,19 +1499,29 @@ static int exynos_dsi_probe(struct platform_device *pdev) dev_name(&pdev->dev), dsi); if (ret) { dev_err(&pdev->dev, "failed to request dsi irq\n"); - return ret; + goto err_del_component; } exynos_dsi_display.ctx = dsi; platform_set_drvdata(pdev, &exynos_dsi_display); - return exynos_drm_component_add(&pdev->dev, &exynos_dsi_component_ops); + ret = component_add(&pdev->dev, &exynos_dsi_component_ops); + if (ret) + goto err_del_component; + + return ret; + +err_del_component: + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); + return ret; } static int exynos_dsi_remove(struct platform_device *pdev) { - exynos_drm_component_del(&pdev->dev, &exynos_dsi_component_ops); + component_del(&pdev->dev, &exynos_dsi_component_ops); + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); + return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index bd30d0c..47a772d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -941,12 +941,21 @@ static int fimd_probe(struct platform_device *pdev) struct resource *res; int ret = -EINVAL; - if (!dev->of_node) - return -ENODEV; + ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC, + fimd_manager.type); + if (ret) + return ret; + + if (!dev->of_node) { + ret = -ENODEV; + goto err_del_component; + } ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); - if (!ctx) - return -ENOMEM; + if (!ctx) { + ret = -ENOMEM; + goto err_del_component; + } ctx->dev = dev; ctx->suspended = true; @@ -959,32 +968,37 @@ static int fimd_probe(struct platform_device *pdev) ctx->bus_clk = devm_clk_get(dev, "fimd"); if (IS_ERR(ctx->bus_clk)) { dev_err(dev, "failed to get bus clock\n"); - return PTR_ERR(ctx->bus_clk); + ret = PTR_ERR(ctx->bus_clk); + goto err_del_component; } ctx->lcd_clk = devm_clk_get(dev, "sclk_fimd"); if (IS_ERR(ctx->lcd_clk)) { dev_err(dev, "failed to get lcd clock\n"); - return PTR_ERR(ctx->lcd_clk); + ret = PTR_ERR(ctx->lcd_clk); + goto err_del_component; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ctx->regs = devm_ioremap_resource(dev, res); - if (IS_ERR(ctx->regs)) - return PTR_ERR(ctx->regs); + if (IS_ERR(ctx->regs)) { + ret = PTR_ERR(ctx->regs); + goto err_del_component; + } res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "vsync"); if (!res) { dev_err(dev, "irq request failed.\n"); - return -ENXIO; + ret = -ENXIO; + goto err_del_component; } ret = devm_request_irq(dev, res->start, fimd_irq_handler, 0, "drm_fimd", ctx); if (ret) { dev_err(dev, "irq request failed.\n"); - return ret; + goto err_del_component; } ctx->driver_data = drm_fimd_get_driver_data(pdev); @@ -1001,14 +1015,27 @@ static int fimd_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); - return exynos_drm_component_add(&pdev->dev, &fimd_component_ops); + ret = component_add(&pdev->dev, &fimd_component_ops); + if (ret) + goto err_disable_pm_runtime; + + return ret; + +err_disable_pm_runtime: + pm_runtime_disable(&pdev->dev); + +err_del_component: + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); + return ret; } static int fimd_remove(struct platform_device *pdev) { pm_runtime_disable(&pdev->dev); - exynos_drm_component_del(&pdev->dev, &fimd_component_ops); + component_del(&pdev->dev, &fimd_component_ops); + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); + return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index e05c86a..0c3bcee 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2134,26 +2134,31 @@ static int hdmi_resources_init(struct hdmi_context *hdata) res->hdmi = devm_clk_get(dev, "hdmi"); if (IS_ERR(res->hdmi)) { DRM_ERROR("failed to get clock 'hdmi'\n"); + ret = PTR_ERR(res->hdmi); goto fail; } res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi"); if (IS_ERR(res->sclk_hdmi)) { DRM_ERROR("failed to get clock 'sclk_hdmi'\n"); + ret = PTR_ERR(res->sclk_hdmi); goto fail; } res->sclk_pixel = devm_clk_get(dev, "sclk_pixel"); if (IS_ERR(res->sclk_pixel)) { DRM_ERROR("failed to get clock 'sclk_pixel'\n"); + ret = PTR_ERR(res->sclk_pixel); goto fail; } res->sclk_hdmiphy = devm_clk_get(dev, "sclk_hdmiphy"); if (IS_ERR(res->sclk_hdmiphy)) { DRM_ERROR("failed to get clock 'sclk_hdmiphy'\n"); + ret = PTR_ERR(res->sclk_hdmiphy); goto fail; } res->mout_hdmi = devm_clk_get(dev, "mout_hdmi"); if (IS_ERR(res->mout_hdmi)) { DRM_ERROR("failed to get clock 'mout_hdmi'\n"); + ret = PTR_ERR(res->mout_hdmi); goto fail; } @@ -2161,8 +2166,10 @@ static int hdmi_resources_init(struct hdmi_context *hdata) res->regul_bulk = devm_kzalloc(dev, ARRAY_SIZE(supply) * sizeof(res->regul_bulk[0]), GFP_KERNEL); - if (!res->regul_bulk) + if (!res->regul_bulk) { + ret = -ENOMEM; goto fail; + } for (i = 0; i < ARRAY_SIZE(supply); ++i) { res->regul_bulk[i].supply = supply[i]; res->regul_bulk[i].consumer = NULL; @@ -2170,14 +2177,14 @@ static int hdmi_resources_init(struct hdmi_context *hdata) ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk); if (ret) { DRM_ERROR("failed to get regulators\n"); - goto fail; + return ret; } res->regul_count = ARRAY_SIZE(supply); - return 0; + return ret; fail: DRM_ERROR("HDMI resource init - failed\n"); - return -ENODEV; + return ret; } static struct s5p_hdmi_platform_data *drm_hdmi_dt_parse_pdata @@ -2275,24 +2282,37 @@ static int hdmi_probe(struct platform_device *pdev) struct resource *res; int ret; - if (!dev->of_node) - return -ENODEV; + ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR, + hdmi_display.type); + if (ret) + return ret; + + if (!dev->of_node) { + ret = -ENODEV; + goto err_del_component; + } pdata = drm_hdmi_dt_parse_pdata(dev); - if (!pdata) - return -EINVAL; + if (!pdata) { + ret = -EINVAL; + goto err_del_component; + } hdata = devm_kzalloc(dev, sizeof(struct hdmi_context), GFP_KERNEL); - if (!hdata) - return -ENOMEM; + if (!hdata) { + ret = -ENOMEM; + goto err_del_component; + } mutex_init(&hdata->hdmi_mutex); platform_set_drvdata(pdev, &hdmi_display); match = of_match_node(hdmi_match_types, dev->of_node); - if (!match) - return -ENODEV; + if (!match) { + ret = -ENODEV; + goto err_del_component; + } drv_data = (struct hdmi_driver_data *)match->data; hdata->type = drv_data->type; @@ -2305,18 +2325,20 @@ static int hdmi_probe(struct platform_device *pdev) ret = hdmi_resources_init(hdata); if (ret) { DRM_ERROR("hdmi_resources_init failed\n"); - return -EINVAL; + return ret; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); hdata->regs = devm_ioremap_resource(dev, res); - if (IS_ERR(hdata->regs)) - return PTR_ERR(hdata->regs); + if (IS_ERR(hdata->regs)) { + ret = PTR_ERR(hdata->regs); + goto err_del_component; + } ret = devm_gpio_request(dev, hdata->hpd_gpio, "HPD"); if (ret) { DRM_ERROR("failed to request HPD gpio\n"); - return ret; + goto err_del_component; } ddc_node = hdmi_legacy_ddc_dt_binding(dev); @@ -2327,14 +2349,15 @@ static int hdmi_probe(struct platform_device *pdev) ddc_node = of_parse_phandle(dev->of_node, "ddc", 0); if (!ddc_node) { DRM_ERROR("Failed to find ddc node in device tree\n"); - return -ENODEV; + ret = -ENODEV; + goto err_del_component; } out_get_ddc_adpt: hdata->ddc_adpt = of_find_i2c_adapter_by_node(ddc_node); if (!hdata->ddc_adpt) { DRM_ERROR("Failed to get ddc i2c adapter by node\n"); - return -ENODEV; + return -EPROBE_DEFER; } phy_node = hdmi_legacy_phy_dt_binding(dev); @@ -2361,7 +2384,7 @@ out_get_phy_port: hdata->hdmiphy_port = of_find_i2c_device_by_node(phy_node); if (!hdata->hdmiphy_port) { DRM_ERROR("Failed to get hdmi phy i2c client\n"); - ret = -ENODEV; + ret = -EPROBE_DEFER; goto err_ddc; } } @@ -2390,19 +2413,31 @@ out_get_phy_port: "samsung,syscon-phandle"); if (IS_ERR(hdata->pmureg)) { DRM_ERROR("syscon regmap lookup failed.\n"); + ret = -EPROBE_DEFER; goto err_hdmiphy; } pm_runtime_enable(dev); hdmi_display.ctx = hdata; - return exynos_drm_component_add(&pdev->dev, &hdmi_component_ops); + ret = component_add(&pdev->dev, &hdmi_component_ops); + if (ret) + goto err_disable_pm_runtime; + + return ret; + +err_disable_pm_runtime: + pm_runtime_disable(dev); err_hdmiphy: if (hdata->hdmiphy_port) put_device(&hdata->hdmiphy_port->dev); err_ddc: put_device(&hdata->ddc_adpt->dev); + +err_del_component: + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); + return ret; } @@ -2416,8 +2451,9 @@ static int hdmi_remove(struct platform_device *pdev) put_device(&hdata->ddc_adpt->dev); pm_runtime_disable(&pdev->dev); + component_del(&pdev->dev, &hdmi_component_ops); - exynos_drm_component_del(&pdev->dev, &hdmi_component_ops); + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 483d7c0..4c5aed7 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -1273,12 +1273,25 @@ static const struct component_ops mixer_component_ops = { static int mixer_probe(struct platform_device *pdev) { - return exynos_drm_component_add(&pdev->dev, &mixer_component_ops); + int ret; + + ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC, + mixer_manager.type); + if (ret) + return ret; + + ret = component_add(&pdev->dev, &mixer_component_ops); + if (ret) + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); + + return ret; } static int mixer_remove(struct platform_device *pdev) { - exynos_drm_component_del(&pdev->dev, &mixer_component_ops); + component_del(&pdev->dev, &mixer_component_ops); + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); + return 0; }