From patchwork Fri Sep 25 07:50:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Stefan_Riedm=C3=BCller?= X-Patchwork-Id: 67340 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kLidm-005yM2-GC; Fri, 25 Sep 2020 07:59:39 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727461AbgIYIF5 (ORCPT + 1 other); Fri, 25 Sep 2020 04:05:57 -0400 Received: from mickerik.phytec.de ([195.145.39.210]:61920 "EHLO mickerik.phytec.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727201AbgIYIF4 (ORCPT ); Fri, 25 Sep 2020 04:05:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; d=phytec.de; s=a1; c=relaxed/simple; q=dns/txt; i=@phytec.de; t=1601020245; x=1603612245; h=From:Sender:Reply-To:Subject:Date:Message-Id:To:Cc:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=x5Pk/l2MiC1puFAoUsj9YgTJFrLM/W2OzlbBAh4xBcc=; b=aabP0zdtZPlT+FWbirhNwfjksCzPoc91adY+3d35kYVEAdu4FBuBT9JIQ0OI8VqC 7wuDU/mGfgKyuWXOWLXrZ/Q43Qw9mvx2UkNL3a7ZUxKlRCupcvQEHxnQZZjk/dOJ KNj1vJAag77POiLvyYETgO/UPGs04f14QGicyxT7DnY=; X-AuditID: c39127d2-269ff70000001c25-f4-5f6da1551b95 Received: from idefix.phytec.de (Unknown_Domain [172.16.0.10]) by mickerik.phytec.de (PHYTEC Mail Gateway) with SMTP id 6D.A5.07205.551AD6F5; Fri, 25 Sep 2020 09:50:45 +0200 (CEST) Received: from lws-riedmueller.phytec.de ([172.16.23.108]) by idefix.phytec.de (IBM Domino Release 9.0.1FP7) with ESMTP id 2020092509504515-495332 ; Fri, 25 Sep 2020 09:50:45 +0200 From: Stefan Riedmueller To: Laurent Pinchart Cc: Mauro Carvalho Chehab , Sakari Ailus , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Enrico Scholz , Stefan Riedmueller Subject: [PATCH 3/5] media: mt9p031: Implement [gs]_register debug calls Date: Fri, 25 Sep 2020 09:50:27 +0200 Message-Id: <20200925075029.32181-3-s.riedmueller@phytec.de> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200925075029.32181-1-s.riedmueller@phytec.de> References: <20200925075029.32181-1-s.riedmueller@phytec.de> MIME-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on Idefix/Phytec(Release 9.0.1FP7|August 17, 2016) at 25.09.2020 09:50:45, Serialize by Router on Idefix/Phytec(Release 9.0.1FP7|August 17, 2016) at 25.09.2020 09:50:45 X-TNEFEvaluated: 1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrJLMWRmVeSWpSXmKPExsWyRoCBSzd0YW68wY4+EYu9xy6wWHROXMJu cXnXHDaLng1bWS2WbfrDZPFpyzcmBzaP2R0zWT02repk85h3MtBjxcr/TB6fN8kFsEZx2aSk 5mSWpRbp2yVwZbzZc5WpoIO/YtO/VtYGxvs8XYycHBICJhKf701gBLGFBLYxSmw5WNDFyAVk X2OUePZrGztIgk3ASGLBtEYmEFtEwEKid9F0sAZmga+MEuvOZoPYwgIeEo2NK8DqWQRUJZYt 6WQFsXkFbCROvf3GCLFMXmLmpe9gNZwCthJH355nglhsI/Fix19GiHpBiZMzn7CAHCEhcIVR ov/UDDaIZiGJ04vPMkMs1pZYtvA18wRGgVlIemYhSS1gZFrFKJSbmZydWpSZrVeQUVmSmqyX krqJERi8hyeqX9rB2DfH4xAjEwfjIUYJDmYlEd7jG3LihXhTEiurUovy44tKc1KLDzFKc7Ao ifNu4C0JExJITyxJzU5NLUgtgskycXBKNTAuvRvCLuG22kauZ6Z8d4Fu35+2Q2Zx7lXrPh0L ThDY2aGs8s989fMbv3fasogqZH1QWmwmeuiY+IxYwZzcL7M6Dcuc3fiX54m4PFawO1ItZ79v m9gXl7YzLY2fPMRVZn/6+EJwve3Kj86Mm2+xHQ3asJCT4Y9PuMaLxuj/ey9zLT17YovCvhIl luKMREMt5qLiRADUtBXmTAIAAA== Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.3 (--) X-LSpam-Report: No, score=-2.3 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,T_DKIM_INVALID=0.01 autolearn=ham autolearn_force=no From: Enrico Scholz Implement g_register and s_register v4l2_subdev_core_ops to access camera register directly from userspace for debug purposes. Signed-off-by: Enrico Scholz Signed-off-by: Stefan Riedmueller --- drivers/media/i2c/mt9p031.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c index ce192be4531f..f5d6a7890c47 100644 --- a/drivers/media/i2c/mt9p031.c +++ b/drivers/media/i2c/mt9p031.c @@ -703,6 +703,30 @@ static int mt9p031_restore_blc(struct mt9p031 *mt9p031) return 0; } +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int mt9p031_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + ret = mt9p031_read(client, reg->reg); + if (ret < 0) + return ret; + + reg->val = ret; + return 0; +} + +static int mt9p031_s_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register const *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + return mt9p031_write(client, reg->reg, reg->val); +} +#endif + static int mt9p031_s_ctrl(struct v4l2_ctrl *ctrl) { struct mt9p031 *mt9p031 = @@ -1000,6 +1024,10 @@ static int mt9p031_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) static const struct v4l2_subdev_core_ops mt9p031_subdev_core_ops = { .s_power = mt9p031_set_power, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .s_register = mt9p031_s_register, + .g_register = mt9p031_g_register, +#endif }; static const struct v4l2_subdev_video_ops mt9p031_subdev_video_ops = {