linux-kernel - Re: [PATCH 06/15] iio: buffer-dmaengine: Enable write support

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Message-ID: <CA+U=DspKfDmLhSg6fqz44w-BmmuP1Ju_RuMhS5+ZJXRUzq97fg@mail.gmail.com>
Date:   Tue, 16 Nov 2021 10:55:04 +0200
From:   Alexandru Ardelean <ardeleanalex@...il.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        linux-iio <linux-iio@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH 06/15] iio: buffer-dmaengine: Enable write support

On Mon, Nov 15, 2021 at 4:20 PM Paul Cercueil <paul@...pouillou.net> wrote:
>
> Use the iio_dma_buffer_write() and iio_dma_buffer_space_available()
> functions provided by the buffer-dma core, to enable write support in
> the buffer-dmaengine code.
>

This is a bit related to the comment about
iio_dma_buffer_space_available() in patch 4

But otherwise:

Reviewed-by: Alexandru Ardelean <ardeleanalex@...il.com>


> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
>  drivers/iio/buffer/industrialio-buffer-dmaengine.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
> index ac26b04aa4a9..5cde8fd81c7f 100644
> --- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c
> +++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
> @@ -123,12 +123,14 @@ static void iio_dmaengine_buffer_release(struct iio_buffer *buf)
>
>  static const struct iio_buffer_access_funcs iio_dmaengine_buffer_ops = {
>         .read = iio_dma_buffer_read,
> +       .write = iio_dma_buffer_write,
>         .set_bytes_per_datum = iio_dma_buffer_set_bytes_per_datum,
>         .set_length = iio_dma_buffer_set_length,
>         .request_update = iio_dma_buffer_request_update,
>         .enable = iio_dma_buffer_enable,
>         .disable = iio_dma_buffer_disable,
>         .data_available = iio_dma_buffer_data_available,
> +       .space_available = iio_dma_buffer_space_available,
>         .release = iio_dmaengine_buffer_release,
>
>         .modes = INDIO_BUFFER_HARDWARE,
> --
> 2.33.0
>