From patchwork Mon May 24 10:44:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 447653 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 299A8C47087 for ; Mon, 24 May 2021 10:45:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0EDD2610C8 for ; Mon, 24 May 2021 10:45:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232711AbhEXKq0 (ORCPT ); Mon, 24 May 2021 06:46:26 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:60880 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232694AbhEXKqU (ORCPT ); Mon, 24 May 2021 06:46:20 -0400 Received: from deskari.lan (91-157-208-71.elisa-laajakaista.fi [91.157.208.71]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 5ADF7182C; Mon, 24 May 2021 12:44:51 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1621853092; bh=18K5a+47ju4e8LPOcazolgEo2Raed/rDQyj5qzhlN7o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LUMXJS9aGueaOunV49JttQEJXA2R5O9aLmtLUPDG3DPDOzbBkITUbM1QkfJhMh4sg 85zt0UXE/EGY2qDen46m1i+VqanrGH58FjZ0EH/EFTEWm0lZFzpcWHT+yxj/z0tdpU ZdRhhsXRlaNVJQSHj5tsrz7enOVk0zVQJmZrP8R8= 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 27/27] v4l: subdev: increase V4L2_FRAME_DESC_ENTRY_MAX to 8 Date: Mon, 24 May 2021 13:44:08 +0300 Message-Id: <20210524104408.599645-28-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 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 f448e7447ff5..3bbc927cedb2 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