From patchwork Thu Feb 3 17:50:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Michel Hautbois X-Patchwork-Id: 539994 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 08B49C3525A for ; Thu, 3 Feb 2022 17:51:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353173AbiBCRvD (ORCPT ); Thu, 3 Feb 2022 12:51:03 -0500 Received: from perceval.ideasonboard.com ([213.167.242.64]:59002 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353223AbiBCRus (ORCPT ); Thu, 3 Feb 2022 12:50:48 -0500 Received: from tatooine.ideasonboard.com (unknown [IPv6:2a01:e0a:169:7140:5173:4d3f:4ddc:2012]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 028BC1C2D; Thu, 3 Feb 2022 18:50:28 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1643910629; bh=7P8zmIp04YDN3+i1i3KJjkUj+aOMuxjdMxXla3XMhQM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e7d3caETf3q3BXpEZVIjyX2QawZFOXLJmfKZX9cVNd57ldURRI51kt4EsvXPyZPfI GPGLhN3RYKiPaAy/dMLq/tQR++ZvJ9EbA+wmbsAoV/rN6P47MKrOiw8P9PXcOqZj05 Fk27/I1GxiKKSs62ZCVBVPSGZkag+itmEJRKSyq4= From: Jean-Michel Hautbois To: jeanmichel.hautbois@ideasonboard.com Cc: dave.stevenson@raspberrypi.com, devicetree@vger.kernel.org, kernel-list@raspberrypi.com, laurent.pinchart@ideasonboard.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, lukasz@jany.st, mchehab@kernel.org, naush@raspberrypi.com, robh@kernel.org, tomi.valkeinen@ideasonboard.com, nsaenz@kernel.org, bcm-kernel-feedback-list@broadcom.com Subject: [RFC PATCH v4 10/12] media: imx219: use a local v4l2_subdev to simplify reading Date: Thu, 3 Feb 2022 18:50:07 +0100 Message-Id: <20220203175009.558868-11-jeanmichel.hautbois@ideasonboard.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220203175009.558868-1-jeanmichel.hautbois@ideasonboard.com> References: <20220203175009.558868-1-jeanmichel.hautbois@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org There is no need to dereference the imx219 structure. Use a local v4l2_subdev instead. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart --- drivers/media/i2c/imx219.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index 7d29cf2b06f8..7c224d007f3e 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -1492,6 +1492,7 @@ static int imx219_check_hwcfg(struct device *dev) static int imx219_probe(struct i2c_client *client) { struct device *dev = &client->dev; + struct v4l2_subdev *sd; struct imx219 *imx219; int ret; @@ -1499,7 +1500,8 @@ static int imx219_probe(struct i2c_client *client) if (!imx219) return -ENOMEM; - v4l2_i2c_subdev_init(&imx219->sd, client, &imx219_subdev_ops); + sd = &imx219->sd; + v4l2_i2c_subdev_init(sd, client, &imx219_subdev_ops); /* Check the hardware configuration in device tree */ if (imx219_check_hwcfg(dev)) @@ -1566,21 +1568,21 @@ static int imx219_probe(struct i2c_client *client) goto error_power_off; /* Initialize subdev */ - imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | - V4L2_SUBDEV_FL_HAS_EVENTS | - V4L2_SUBDEV_FL_MULTIPLEXED; - imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | + V4L2_SUBDEV_FL_HAS_EVENTS | + V4L2_SUBDEV_FL_MULTIPLEXED; + sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; /* Initialize source pad */ imx219->pad.flags = MEDIA_PAD_FL_SOURCE; - ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->pad); + ret = media_entity_pads_init(&sd->entity, 1, &imx219->pad); if (ret) { dev_err(dev, "failed to init entity pads: %d\n", ret); goto error_handler_free; } - ret = v4l2_async_register_subdev_sensor(&imx219->sd); + ret = v4l2_async_register_subdev_sensor(sd); if (ret < 0) { dev_err(dev, "failed to register sensor sub-device: %d\n", ret); goto error_media_entity; @@ -1594,7 +1596,7 @@ static int imx219_probe(struct i2c_client *client) return 0; error_media_entity: - media_entity_cleanup(&imx219->sd.entity); + media_entity_cleanup(&sd->entity); error_handler_free: imx219_free_controls(imx219);