From patchwork Wed Sep 27 15:35:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 726913 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28225E82CAA for ; Wed, 27 Sep 2023 15:36:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232650AbjI0Pgq (ORCPT ); Wed, 27 Sep 2023 11:36:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232662AbjI0Pg3 (ORCPT ); Wed, 27 Sep 2023 11:36:29 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E67ECEA; Wed, 27 Sep 2023 08:36:23 -0700 (PDT) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:672:46bd:3ec7:6cdf]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id 78BFD6607333; Wed, 27 Sep 2023 16:36:21 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1695828981; bh=fLRtME703ZZcICdPkAIYRy+HHmsEI0CB5+N7/vWII0U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L/oRV5LStiuUvpApTOjadIJ0XawpBOpmIwVozAHay97sIxlaffgztofF2r+/BHvT1 aW9Iz2XU9y4ysXIkIzppTR84m9LqM/jcz+3pJzXCEL+jyI+3p9cpWqJrOWf6M3G9Y1 cPHysLXWSgG0zEjS4O95GvlBqM/zQzxoA9jfDxnVZTQEVDwsDyfGtgJLfPoqijO39s U4BfxFSryZcm4yz/9T/geTtlNVHNZ84OTmul0gG+E1DKZi/BjfXhnWzrPkuILtr2S/ wLBJRCy1p/lFcFoaQXDgIWMFMApQwn7h59+i5qn5v7mr4aONQ1FfnkF7ceKdXIqbu6 C3YEEJEQTnvNg== From: Benjamin Gaignard To: mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com, ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v8 29/53] media: pci: tw686x: Set min_buffers_needed to 3 Date: Wed, 27 Sep 2023 17:35:34 +0200 Message-Id: <20230927153558.159278-30-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230927153558.159278-1-benjamin.gaignard@collabora.com> References: <20230927153558.159278-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org vb2 queue_setup checks for a minimum number of buffers so set min_buffers_needed to 3 and remove the useless check in tw686x_queue_setup(). Signed-off-by: Benjamin Gaignard --- drivers/media/pci/tw686x/tw686x-video.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c index 3ebf7a2c95f0..74cd864365aa 100644 --- a/drivers/media/pci/tw686x/tw686x-video.c +++ b/drivers/media/pci/tw686x/tw686x-video.c @@ -426,13 +426,6 @@ static int tw686x_queue_setup(struct vb2_queue *vq, unsigned int szimage = (vc->width * vc->height * vc->format->depth) >> 3; - /* - * Let's request at least three buffers: two for the - * DMA engine and one for userspace. - */ - if (vq->num_buffers + *nbuffers < 3) - *nbuffers = 3 - vq->num_buffers; - if (*nplanes) { if (*nplanes != 1 || sizes[0] < szimage) return -EINVAL; @@ -1221,7 +1214,11 @@ int tw686x_video_init(struct tw686x_dev *dev) vc->vidq.ops = &tw686x_video_qops; vc->vidq.mem_ops = dev->dma_ops->mem_ops; vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vc->vidq.min_buffers_needed = 2; + /* + * Let's request at least three buffers: two for the + * DMA engine and one for userspace. + */ + vc->vidq.min_buffers_needed = 3; vc->vidq.lock = &vc->vb_mutex; vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ? GFP_DMA32 : 0;