linux-kernel - [PATCH v2 09/12] iio: buffer-dmaengine: Support new DMABUF based userspace API

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Date:   Mon,  7 Feb 2022 12:59:30 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     Michael Hennerich <Michael.Hennerich@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Christian König <christian.koenig@....com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Jonathan Corbet <corbet@....net>,
        Alexandru Ardelean <ardeleanalex@...il.com>,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-iio@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v2 09/12] iio: buffer-dmaengine: Support new DMABUF based userspace API

Use the functions provided by the buffer-dma core to implement the
DMABUF userspace API in the buffer-dmaengine IIO buffer implementation.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 drivers/iio/buffer/industrialio-buffer-dmaengine.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
index 5cde8fd81c7f..57a8b2e4ba3c 100644
--- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c
+++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
@@ -133,6 +133,9 @@ static const struct iio_buffer_access_funcs iio_dmaengine_buffer_ops = {
 	.space_available = iio_dma_buffer_space_available,
 	.release = iio_dmaengine_buffer_release,
 
+	.alloc_dmabuf = iio_dma_buffer_alloc_dmabuf,
+	.enqueue_dmabuf = iio_dma_buffer_enqueue_dmabuf,
+
 	.modes = INDIO_BUFFER_HARDWARE,
 	.flags = INDIO_BUFFER_FLAG_FIXED_WATERMARK,
 };
-- 
2.34.1