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From:   Benjamin Gaignard <benjamin.gaignard@collabora.com>
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 <benjamin.gaignard@collabora.com>,
        Rui Miguel Silva <rmfrfs@gmail.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Martin Kepplinger <martink@posteo.de>,
        Purism Kernel Team <kernel@puri.sm>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>
Subject: [PATCH 08/55] media: imx7-media-csi: Stop abusing of min_buffers_needed field
Date:   Mon, 27 Nov 2023 17:54:07 +0100
Message-Id: <20231127165454.166373-9-benjamin.gaignard@collabora.com>
In-Reply-To: <20231127165454.166373-1-benjamin.gaignard@collabora.com>
References: <20231127165454.166373-1-benjamin.gaignard@collabora.com>
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'min_buffers_needed' is suppose to be used to indicate the number
of buffers needed by DMA engine to start streaming.
imx7-media-csi 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 <benjamin.gaignard@collabora.com>
CC: Rui Miguel Silva <rmfrfs@gmail.com>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
CC: Martin Kepplinger <martink@posteo.de>
CC: Purism Kernel Team <kernel@puri.sm>
CC: Mauro Carvalho Chehab <mchehab@kernel.org>
CC: Shawn Guo <shawnguo@kernel.org>
CC: Sascha Hauer <s.hauer@pengutronix.de>
CC: Pengutronix Kernel Team <kernel@pengutronix.de>
CC: Fabio Estevam <festevam@gmail.com>
CC: NXP Linux Team <linux-imx@nxp.com>
---
 drivers/media/platform/nxp/imx7-media-csi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c
index 1d2464ca59b8..dcc8c54228e4 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -1676,7 +1676,7 @@ static int imx7_csi_video_init(struct imx7_csi *csi)
 	vq->mem_ops = &vb2_dma_contig_memops;
 	vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	vq->lock = &csi->vdev_mutex;
-	vq->min_buffers_needed = 2;
+	vq->min_reqbufs_allocation = 2;
 	vq->dev = csi->dev;
 
 	ret = vb2_queue_init(vq);
-- 
2.39.2