From patchwork Tue Apr 5 07:30:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 557858 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 3D7F8C352A7 for ; Tue, 5 Apr 2022 08:55:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238156AbiDEIny (ORCPT ); Tue, 5 Apr 2022 04:43:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241222AbiDEIc4 (ORCPT ); Tue, 5 Apr 2022 04:32:56 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 854D25F84; Tue, 5 Apr 2022 01:29:47 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 3A774B81BB1; Tue, 5 Apr 2022 08:29:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A49ACC385A2; Tue, 5 Apr 2022 08:29:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649147385; bh=5l6ORz8eE2NVxh7n5XMeTQ77XrdLfW9u905815LIC3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WgR/7QSH4i/4yCsplWeh/GG8o2D2FurJLS6jNyxCFH9+01eD68EQCAmS5Nv60Tvne YEcB0RiD86bjzsqTRkhkQ3ht3p4DxAYoA3vIv7zG94Ll+CQui6vSHb3nhgWAxunxlh 6Ch6iyiIHsyhKpjxDyetapqBNFUYEgWCPN0XOfDY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Janusz Krzysztofik , Sakari Ailus , Mauro Carvalho Chehab Subject: [PATCH 5.17 1105/1126] media: ov6650: Fix crop rectangle affected by set format Date: Tue, 5 Apr 2022 09:30:52 +0200 Message-Id: <20220405070439.874270312@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070407.513532867@linuxfoundation.org> References: <20220405070407.513532867@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Janusz Krzysztofik commit 985d2d7a482e9b64ef9643702b066da9cbd6ae8e upstream. According to subdevice interface specification found in V4L2 API documentation, set format pad operations should not affect image geometry set in preceding image processing steps. Unfortunately, that requirement is not respected by the driver implementation of set format as it was not the case when that code was still implementing a pair of now obsolete .s_mbus_fmt() / .try_mbus_fmt() video operations before they have been merged and reused as an implementation of .set_fmt() pad operation by commit 717fd5b4907a ("[media] v4l2: replace try_mbus_fmt by set_fmt"). Exclude non-compliant crop rectangle adjustments from set format try, as well as a call to .set_selection() from set format active processing path, so only frame scaling is applied as needed and crop rectangle is no longer modified. [Sakari Ailus: Rebase on subdev state patches] Fixes: 717fd5b4907a ("[media] v4l2: replace try_mbus_fmt by set_fmt") Signed-off-by: Janusz Krzysztofik Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/i2c/ov6650.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-) --- a/drivers/media/i2c/ov6650.c +++ b/drivers/media/i2c/ov6650.c @@ -693,11 +693,7 @@ static int ov6650_set_fmt(struct v4l2_su struct v4l2_mbus_framefmt *mf = &format->format; struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov6650 *priv = to_ov6650(client); - struct v4l2_subdev_selection sel = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .target = V4L2_SEL_TGT_CROP, - }; - struct v4l2_rect *crop = &sel.r; + struct v4l2_rect *crop; bool half_scale; if (format->pad) @@ -721,24 +717,13 @@ static int ov6650_set_fmt(struct v4l2_su } if (format->which == V4L2_SUBDEV_FORMAT_TRY) - *crop = sd_state->pads->try_crop; + crop = &sd_state->pads->try_crop; else - *crop = priv->rect; + crop = &priv->rect; half_scale = !is_unscaled_ok(mf->width, mf->height, crop); - /* adjust new crop rectangle position against its current center */ - crop->left += (crop->width - (mf->width << half_scale)) / 2; - crop->top += (crop->height - (mf->height << half_scale)) / 2; - /* adjust new crop rectangle size */ - crop->width = mf->width << half_scale; - crop->height = mf->height << half_scale; - if (format->which == V4L2_SUBDEV_FORMAT_TRY) { - /* store new crop rectangle, hadware bound, in pad config */ - ov6650_bind_align_crop_rectangle(crop); - sd_state->pads->try_crop = *crop; - /* store new mbus frame format code and size in pad config */ sd_state->pads->try_fmt.width = crop->width >> half_scale; sd_state->pads->try_fmt.height = crop->height >> half_scale; @@ -751,12 +736,7 @@ static int ov6650_set_fmt(struct v4l2_su mf->code = sd_state->pads->try_fmt.code; } else { - int ret; - - /* apply new crop rectangle */ - ret = ov6650_set_selection(sd, NULL, &sel); - if (ret) - return ret; + int ret = 0; /* apply new media bus frame format and scaling if changed */ if (mf->code != priv->code || half_scale != priv->half_scale)