From patchwork Tue Apr 5 07:31:48 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: 557270 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 03C42C433FE for ; Tue, 5 Apr 2022 10:28:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355986AbiDEKWg (ORCPT ); Tue, 5 Apr 2022 06:22:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235682AbiDEJ3d (ORCPT ); Tue, 5 Apr 2022 05:29:33 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5FCB3E2F71; Tue, 5 Apr 2022 02:16:59 -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 dfw.source.kernel.org (Postfix) with ESMTPS id EAA0561645; Tue, 5 Apr 2022 09:16:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 02542C385A0; Tue, 5 Apr 2022 09:16:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649150218; bh=5l6ORz8eE2NVxh7n5XMeTQ77XrdLfW9u905815LIC3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZZElOt3doTCyCCojIhQif4JBInsMAQbEv9g6oswOEHoZY6k5w10BMJZPyemZbkz3t weAcXNhaaIv54ZqaXv7dIPcsgWKHG47uHAc5qNaVTzOcR5ZVQnna8xzjDLSy5JW5O/ CO2agx3b9avaybxPTqP4RjEZK5hFv3VrQ3v8Xl5o= 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 5.16 0995/1017] media: ov6650: Fix crop rectangle affected by set format Date: Tue, 5 Apr 2022 09:31:48 +0200 Message-Id: <20220405070423.738331346@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070354.155796697@linuxfoundation.org> References: <20220405070354.155796697@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)