From patchwork Fri Aug 31 14:40:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kieran Bingham X-Patchwork-Id: 10583929 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 5FB2F174C for ; Fri, 31 Aug 2018 14:41:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 51BFB2BA8E for ; Fri, 31 Aug 2018 14:41:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 45D382BA7B; Fri, 31 Aug 2018 14:41:13 +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=unavailable 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 CA1B52BA7B for ; Fri, 31 Aug 2018 14:41:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728820AbeHaSsm (ORCPT ); Fri, 31 Aug 2018 14:48:42 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:44524 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728760AbeHaSsl (ORCPT ); Fri, 31 Aug 2018 14:48:41 -0400 Received: from localhost.localdomain (cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id B48841AA2; Fri, 31 Aug 2018 16:40:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1535726451; bh=2bSgBlD5BczKXo2QNEk9M3an9MenpcPj9DQhEYcxIfE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IUVd+AgpRGZWPPaqcOOeaKkM1eMGMFlWRP74LguOV8wNm3sm2UJkrUbBRz6B15WsR JJ3oPVglObKQTIjOevfW3hi1m/HQN7pMR7JkBMWJ6WKuaCDr+LYZUp3di/2FQKbHO8 /BXkMs2LK6+nK0iLzRGqs873gkHoD9A5n8PQF6xQ= From: Kieran Bingham To: Laurent Pinchart , mchehab@kernel.org Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Kieran Bingham Subject: [PATCH 4/6] media: vsp1: Document max_width restriction on SRU Date: Fri, 31 Aug 2018 15:40:42 +0100 Message-Id: <20180831144044.31713-5-kieran.bingham+renesas@ideasonboard.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180831144044.31713-1-kieran.bingham+renesas@ideasonboard.com> References: <20180831144044.31713-1-kieran.bingham+renesas@ideasonboard.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The SRU is currently restricted to 256 pixels as part of the current partition algorithm. Document that the actual capability of this component is 288 pixels, but don't increase the implementation. The extended partition algorithm may later choose to utilise a larger input to support overlapping partitions. Signed-off-by: Kieran Bingham --- drivers/media/platform/vsp1/vsp1_sru.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/platform/vsp1/vsp1_sru.c b/drivers/media/platform/vsp1/vsp1_sru.c index f277700e5cc2..2a40e09b9aa7 100644 --- a/drivers/media/platform/vsp1/vsp1_sru.c +++ b/drivers/media/platform/vsp1/vsp1_sru.c @@ -314,6 +314,10 @@ static unsigned int sru_max_width(struct vsp1_entity *entity, output = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config, SRU_PAD_SOURCE); + /* + * The maximum width of the SRU is 288 input pixels, but to support the + * partition algorithm, this is currently kept at 256. + */ if (input->width != output->width) return 512; else