From patchwork Mon May 13 20:13:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kieran Bingham X-Patchwork-Id: 10941725 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 00307912 for ; Mon, 13 May 2019 20:14:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E4BD628434 for ; Mon, 13 May 2019 20:14:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D8BA628445; Mon, 13 May 2019 20:14:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 83FEC28434 for ; Mon, 13 May 2019 20:14:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726303AbfEMUOK (ORCPT ); Mon, 13 May 2019 16:14:10 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:41526 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726130AbfEMUOJ (ORCPT ); Mon, 13 May 2019 16:14:09 -0400 Received: from localhost.localdomain (unknown [IPv6:2a02:c7f:1887:5d00:8d7a:f2f4:69ff:77c4]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 0F0009C2; Mon, 13 May 2019 22:14:06 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1557778446; bh=sm0cNdym4g0tH1VcpDV97bQ80rs75je3AI3MNFGjvG8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Xgz2Z3/mCdP6ZAYqFW5Zy9s5I9c+vIERi7w0LO+kmtOPoEa89jgX27ncPfHSuU0+A 4Zd6C31baNUAEJlUnTQZhxdUOQPDljOoCGSYmd4FlT2K7yR78cxY0ag931GBrd80FI x1FxEhyviJSvruW1EvfLhFuIAv3lL51vIwstcCok= From: Kieran Bingham To: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Laurent Pinchart , Kieran Bingham Subject: [PATCH v4 2/4] media: vsp1: Document partition algorithm in code header Date: Mon, 13 May 2019 21:13:53 +0100 Message-Id: <20190513201355.994-3-kieran.bingham+renesas@ideasonboard.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190513201355.994-1-kieran.bingham+renesas@ideasonboard.com> References: <20190513201355.994-1-kieran.bingham+renesas@ideasonboard.com> MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The image partition algorithm operates on the image dimensions as input into the WPF entity. Document this in the code block header. Reviewed-by: Laurent Pinchart Signed-off-by: Kieran Bingham --- drivers/media/platform/vsp1/vsp1_video.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c index ee2fb8261a6a..9bb8a24870bd 100644 --- a/drivers/media/platform/vsp1/vsp1_video.c +++ b/drivers/media/platform/vsp1/vsp1_video.c @@ -173,6 +173,14 @@ static int __vsp1_video_try_format(struct vsp1_video *video, /* ----------------------------------------------------------------------------- * VSP1 Partition Algorithm support + * + * VSP hardware can have restrictions on image width depending on the hardware + * configuration of the pipeline. Adapting for these restrictions is implemented + * via the partition algorithm. + * + * The partition windows and sizes are based on the output size of the WPF + * before rotation, which is represented by the input parameters to the WPF + * entity in our pipeline. */ /**