From mboxrd@z Thu Jan 1 00:00:00 1970 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 B0923C07545 for ; Tue, 24 Oct 2023 07:36:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232853AbjJXHgB (ORCPT ); Tue, 24 Oct 2023 03:36:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233247AbjJXHf4 (ORCPT ); Tue, 24 Oct 2023 03:35:56 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33A5490 for ; Tue, 24 Oct 2023 00:35:54 -0700 (PDT) Received: from [192.168.88.20] (91-158-149-209.elisa-laajakaista.fi [91.158.149.209]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 3BFF8B53; Tue, 24 Oct 2023 09:35:41 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1698132941; bh=LbVvP+dnXUZWm4NzjeJDyNE+qbIq2TVWOSu74jDFG60=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=cFKzpx4AqXG2PyaAQJYG1al+G8beQTT5V58zJ0FJ7GYkEUsuzefRjM/rljuw8xFVD 64zz9//oavloLQR60Y9hGh6ItgER2VGkdUOm4ggyicxnSQtRWCwMo2ett6Ph6+k7ni szFo07Pq8Ja0RdmUxQrfjJKBHuRUaIm/VJ1hr3fU= Message-ID: <9c6747ff-2c4e-436e-bac6-9dce6ec83f6c@ideasonboard.com> Date: Tue, 24 Oct 2023 10:35:49 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/8] media: v4l: subdev: Store the sub-device in the sub-device state Content-Language: en-US To: Sakari Ailus , linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, jacopo.mondi@ideasonboard.com, bingbu.cao@intel.com, hongju.wang@intel.com References: <20231023174408.803874-1-sakari.ailus@linux.intel.com> <20231023174408.803874-2-sakari.ailus@linux.intel.com> From: Tomi Valkeinen Autocrypt: addr=tomi.valkeinen@ideasonboard.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On 23/10/2023 20:44, Sakari Ailus wrote: > Store the sub-device in the sub-device state. This will be needed in e.g. > validating pad number when retrieving information for non-stream-aware > users. There are expected to be more needs for this in the future. > > Signed-off-by: Sakari Ailus > --- > drivers/media/v4l2-core/v4l2-subdev.c | 2 ++ > include/media/v4l2-subdev.h | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c > index d295a4e87b66..ee4fe8f33a41 100644 > --- a/drivers/media/v4l2-core/v4l2-subdev.c > +++ b/drivers/media/v4l2-core/v4l2-subdev.c > @@ -1441,6 +1441,8 @@ __v4l2_subdev_state_alloc(struct v4l2_subdev *sd, const char *lock_name, > else > state->lock = &state->_lock; > > + state->sd = sd; > + > /* Drivers that support streams do not need the legacy pad config */ > if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS) && sd->entity.num_pads) { > state->pads = kvcalloc(sd->entity.num_pads, > diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h > index c1f90c1223a7..6a02a565035c 100644 > --- a/include/media/v4l2-subdev.h > +++ b/include/media/v4l2-subdev.h > @@ -756,6 +756,7 @@ struct v4l2_subdev_krouting { > * > * @_lock: default for 'lock' > * @lock: mutex for the state. May be replaced by the user. > + * @sd: the sub-device which the state is related to > * @pads: &struct v4l2_subdev_pad_config array > * @routing: routing table for the subdev > * @stream_configs: stream configurations (only for V4L2_SUBDEV_FL_STREAMS) > @@ -768,6 +769,7 @@ struct v4l2_subdev_state { > /* lock for the struct v4l2_subdev_state fields */ > struct mutex _lock; > struct mutex *lock; > + struct v4l2_subdev *sd; > struct v4l2_subdev_pad_config *pads; > struct v4l2_subdev_krouting routing; > struct v4l2_subdev_stream_configs stream_configs; Reviewed-by: Tomi Valkeinen (I still like 'num_pads' better, as we don't have any other use for the sd). Tomi