From patchwork Mon May 24 10:44:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 446657 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78533C2B9F7 for ; Mon, 24 May 2021 10:44:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 62FA46044F for ; Mon, 24 May 2021 10:44:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232704AbhEXKq0 (ORCPT ); Mon, 24 May 2021 06:46:26 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:60914 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232675AbhEXKqT (ORCPT ); Mon, 24 May 2021 06:46:19 -0400 Received: from deskari.lan (91-157-208-71.elisa-laajakaista.fi [91.157.208.71]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 58F5B347C; Mon, 24 May 2021 12:44:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1621853091; bh=sPYS0ZKQppZVRmQxdd90D+TDKA8DmJ9QiiurNtq46GE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LKiXTHrzgsdlARaH/nGSGb0UG7NArdNKL2+Z/JEa74dXUK7SWcLdmECFPnEJpjGte 1pXDRSnGIcgLiCynebxYeHTrGhmsjWJd6tGin5smWtn4RDMmSkm2sbNkonK/KsfdaT T0WFwfofYGD9E/rZ602xW56RiHvQM37cxeNn+pAk= From: Tomi Valkeinen To: linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, Jacopo Mondi , Laurent Pinchart , niklas.soderlund+renesas@ragnatech.se Cc: Mauro Carvalho Chehab , Hans Verkuil , Tomi Valkeinen , Pratyush Yadav , Lokesh Vutla Subject: [PATCH v7 26/27] v4l: subdev: add V4L2_SUBDEV_FL_MULTIPLEXED Date: Mon, 24 May 2021 13:44:07 +0300 Message-Id: <20210524104408.599645-27-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210524104408.599645-1-tomi.valkeinen@ideasonboard.com> References: <20210524104408.599645-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add V4L2_SUBDEV_FL_MULTIPLEXED, which indicates that the subdev supports routing and per-stream configuration. These drivers do not need the old pad based configuration, so we can skip the allocation in v4l2_subdev_alloc_state(). Signed-off-by: Tomi Valkeinen --- drivers/media/v4l2-core/v4l2-subdev.c | 3 ++- include/media/v4l2-subdev.h | 6 ++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index 13cffe9d9b89..9138434a7a73 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -1199,7 +1199,8 @@ struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd) goto err; } - if (sd->entity.num_pads) { + /* Drivers that support streams do not need the legacy pad config */ + if (!(sd->flags & V4L2_SUBDEV_FL_MULTIPLEXED) && sd->entity.num_pads) { state->pads = kvmalloc_array(sd->entity.num_pads, sizeof(*state->pads), GFP_KERNEL | __GFP_ZERO); diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 973db58c2d9b..f448e7447ff5 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -914,6 +914,12 @@ struct v4l2_subdev_internal_ops { * should set this flag. */ #define V4L2_SUBDEV_FL_HAS_EVENTS (1U << 3) +/* + * Set this flag if this subdev supports multiplexed streams. This means + * that the driver supports routing and handles the stream parameter in its + * v4l2_subdev_pad_ops handlers. + */ +#define V4L2_SUBDEV_FL_MULTIPLEXED (1U << 4) struct regulator_bulk_data;