From patchwork Mon Jan 25 13:22:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 370948 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B02AC4160E for ; Tue, 26 Jan 2021 19:23:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F68122A84 for ; Tue, 26 Jan 2021 19:23:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388572AbhAZFpG (ORCPT ); Tue, 26 Jan 2021 00:45:06 -0500 Received: from retiisi.eu ([95.216.213.190]:37508 "EHLO hillosipuli.retiisi.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728870AbhAYN3r (ORCPT ); Mon, 25 Jan 2021 08:29:47 -0500 Received: from lanttu.localdomain (lanttu-e.localdomain [192.168.1.64]) by hillosipuli.retiisi.eu (Postfix) with ESMTP id B9477634CA9; Mon, 25 Jan 2021 15:25:58 +0200 (EET) From: Sakari Ailus To: linux-media@vger.kernel.org Cc: Hans Verkuil , kernel@collabora.com, Laurent Pinchart , Kieran Bingham , Jacopo Mondi , niklas.soderlund+renesas@ragnatech.se, Helen Koike , Dafna Hirschfeld , Hugues Fruchet , Nicolas Ferre , Yong Zhi , Sylwester Nawrocki , Maxime Ripard , Robert Foss , Philipp Zabel , Ezequiel Garcia Subject: [PATCH v3 04/14] media: exynos4-is: Use v4l2_async_notifier_add_fwnode_remote_subdev Date: Mon, 25 Jan 2021 15:22:20 +0200 Message-Id: <20210125132230.6600-19-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210125132230.6600-1-sakari.ailus@linux.intel.com> References: <20210125132230.6600-1-sakari.ailus@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Ezequiel Garcia The use of v4l2_async_notifier_add_subdev will be discouraged. Drivers are instead encouraged to use a helper such as v4l2_async_notifier_add_fwnode_remote_subdev. This fixes a misuse of the API, as v4l2_async_notifier_add_subdev should get a kmalloc'ed struct v4l2_async_subdev, removing some boilerplate code while at it. Use the appropriate helper v4l2_async_notifier_add_fwnode_remote_subdev, which handles the needed setup, instead of open-coding it. Signed-off-by: Ezequiel Garcia Reviewed-by: Jacopo Mondi Signed-off-by: Sakari Ailus Reviewed-by: Helen Koike --- drivers/media/platform/exynos4-is/media-dev.c | 24 ++++++++++--------- drivers/media/platform/exynos4-is/media-dev.h | 2 +- 2 files changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index e636c33e847b..f4687b0cbd65 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -401,6 +401,7 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd, int index = fmd->num_sensors; struct fimc_source_info *pd = &fmd->sensor[index].pdata; struct device_node *rem, *np; + struct v4l2_async_subdev *asd; struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 }; int ret; @@ -418,10 +419,10 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd, pd->mux_id = (endpoint.base.port - 1) & 0x1; rem = of_graph_get_remote_port_parent(ep); - of_node_put(ep); if (rem == NULL) { v4l2_info(&fmd->v4l2_dev, "Remote device at %pOF not found\n", ep); + of_node_put(ep); return 0; } @@ -450,6 +451,7 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd, * checking parent's node name. */ np = of_get_parent(rem); + of_node_put(rem); if (of_node_name_eq(np, "i2c-isp")) pd->fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; @@ -458,20 +460,19 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd, of_node_put(np); if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) { - of_node_put(rem); + of_node_put(ep); return -EINVAL; } - fmd->sensor[index].asd.match_type = V4L2_ASYNC_MATCH_FWNODE; - fmd->sensor[index].asd.match.fwnode = of_fwnode_handle(rem); + asd = v4l2_async_notifier_add_fwnode_remote_subdev( + &fmd->subdev_notifier, of_fwnode_handle(ep), sizeof(*asd)); - ret = v4l2_async_notifier_add_subdev(&fmd->subdev_notifier, - &fmd->sensor[index].asd); - if (ret) { - of_node_put(rem); - return ret; - } + of_node_put(ep); + + if (IS_ERR(asd)) + return PTR_ERR(asd); + fmd->sensor[index].asd = asd; fmd->num_sensors++; return 0; @@ -1381,7 +1382,8 @@ static int subdev_notifier_bound(struct v4l2_async_notifier *notifier, /* Find platform data for this sensor subdev */ for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++) - if (fmd->sensor[i].asd.match.fwnode == + if (fmd->sensor[i].asd && + fmd->sensor[i].asd->match.fwnode == of_fwnode_handle(subdev->dev->of_node)) si = &fmd->sensor[i]; diff --git a/drivers/media/platform/exynos4-is/media-dev.h b/drivers/media/platform/exynos4-is/media-dev.h index 9447fafe23c6..a3876d668ea6 100644 --- a/drivers/media/platform/exynos4-is/media-dev.h +++ b/drivers/media/platform/exynos4-is/media-dev.h @@ -83,7 +83,7 @@ struct fimc_camclk_info { */ struct fimc_sensor_info { struct fimc_source_info pdata; - struct v4l2_async_subdev asd; + struct v4l2_async_subdev *asd; struct v4l2_subdev *subdev; struct fimc_dev *host; };