From patchwork Mon Nov 27 16:54:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 747712 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="k3YZYXRH" Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A6151FCE; Mon, 27 Nov 2023 08:55:29 -0800 (PST) Received: from benjamin-XPS-13-9310.. (ec2-34-240-57-77.eu-west-1.compute.amazonaws.com [34.240.57.77]) (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 5FE7666073CD; Mon, 27 Nov 2023 16:55:27 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1701104128; bh=PJOb0upzYk5sy+kA9Qk465u2DFL4NHA2Gb2jqg1/r/o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k3YZYXRHqyULkbuXDy3Xg/N7u6yLlC9ch+gaajxQbo5EMxlKvmHEEU6TlyVFoYK/e tVgdrrRXlnj7YYHNo7+/hTVR6g8ifxG86PJXCsiOuQdYLloUVPh4pVrK/kr55HaXLa fZsUIMUastnZ2yqudoE2JxwbB1LQyDR3Qs749Y3OxoTuh+eS2k/Ci0JHpyPdISDPkr UV+sXv1ei8pw5aasuxbLqsi7898BCZJHC5C0E7cFIFLX998z42g5qaF43w1NMv4X+A l/52MGE0X34FEhPsa5u5g6W7EIgN7YW7DmwZicDihlQclalSrEGYQfpcvwuvWzFmQ4 /o9PEMC6M/zrQ== From: Benjamin Gaignard To: hverkuil@xs4all.nl, mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com, matt.ranostay@konsulko.com Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard , Thierry Reding , Jonathan Hunter , Sowjanya Komatineni , Luca Ceresoli , linux-tegra@vger.kernel.org Subject: [PATCH 28/55] media: tegra-video: Stop abusing of min_buffers_needed field Date: Mon, 27 Nov 2023 17:54:27 +0100 Message-Id: <20231127165454.166373-29-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231127165454.166373-1-benjamin.gaignard@collabora.com> References: <20231127165454.166373-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 'min_buffers_needed' is suppose to be used to indicate the number of buffers needed by DMA engine to start streaming. tegra-video driver doesn't use DMA engine and just want to specify the minimum number of buffers to allocate when calling VIDIOC_REQBUFS. That 'min_reqbufs_allocation' field purpose so use it. Signed-off-by: Benjamin Gaignard CC: Thierry Reding CC: Jonathan Hunter CC: Sowjanya Komatineni CC: Luca Ceresoli CC: linux-tegra@vger.kernel.org --- drivers/staging/media/tegra-video/vi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index e0bb59ee3c09..b8242c8c0497 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -1174,7 +1174,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan) chan->queue.ops = &tegra_channel_queue_qops; chan->queue.mem_ops = &vb2_dma_contig_memops; chan->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - chan->queue.min_buffers_needed = 2; + chan->queue.min_reqbufs_allocation = 2; chan->queue.dev = vi->dev; ret = vb2_queue_init(&chan->queue); if (ret < 0) {