From patchwork Tue Apr 27 12:45:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 428108 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, URIBL_BLOCKED, 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 5D241C43462 for ; Tue, 27 Apr 2021 12:46:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34A7B61073 for ; Tue, 27 Apr 2021 12:46:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237872AbhD0MrR (ORCPT ); Tue, 27 Apr 2021 08:47:17 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:45396 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237845AbhD0MrL (ORCPT ); Tue, 27 Apr 2021 08:47:11 -0400 Received: from deskari.lan (91-157-208-71.elisa-laajakaista.fi [91.157.208.71]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 862C5E78; Tue, 27 Apr 2021 14:46:25 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1619527586; bh=BLhC60nvmx+cCkc+a3Q1VWzu71eRPXk4Gzpe9uLQ0GY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gzax9qHY8c3kZRkuZGffCytrj1gmLv3EOAdohx97PVG9KhAjKdSqOpcfVzucYL/9Q fr0jfPPjDdfHKkveqOZ3cQrDd/J7p0Bsm2FRD3AhvMJxB5PT+Se6NubViEdTfN+Nxe AUr1YdgPL/+mKUSgjc2/k80baOtO+FXT7OASj4JY= 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 Subject: [PATCH v6 24/24] v4l: subdev: increase V4L2_FRAME_DESC_ENTRY_MAX to 8 Date: Tue, 27 Apr 2021 15:45:23 +0300 Message-Id: <20210427124523.990938-25-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210427124523.990938-1-tomi.valkeinen@ideasonboard.com> References: <20210427124523.990938-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org V4L2_FRAME_DESC_ENTRY_MAX is currently set to 4. In theory it's possible to have an arbitrary amount of streams in a single pad, so preferably there should be no hardcoded maximum number. However, I believe a reasonable max is 8, which would cover a CSI-2 pad with 4 streams of pixel data and 4 streams of metadata. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- include/media/v4l2-subdev.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 9025ef3a67f5..8e2b990b06ff 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -356,7 +356,11 @@ struct v4l2_mbus_frame_desc_entry { } bus; }; -#define V4L2_FRAME_DESC_ENTRY_MAX 4 + /* + * FIXME: If this number is too small, it should be dropped altogether and the + * API switched to a dynamic number of frame descriptor entries. + */ +#define V4L2_FRAME_DESC_ENTRY_MAX 8 /** * enum v4l2_mbus_frame_desc_type - media bus frame description type