linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Rob Herring <robh@kernel.org>
Cc: Bin Liu <bin.liu@mediatek.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Tiffany Lin <tiffany.lin@mediatek.com>,
	Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
	Yunfei Dong <yunfei.dong@mediatek.com>,
	Hyun Kwon <hyun.kwon@xilinx.com>,
	Michal Simek <michal.simek@xilinx.com>,
	devicetree@vger.kernel.org, linux-media@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: Re: [PATCH] media: Use of_property_present() for testing DT property presence
Date: Fri, 10 Mar 2023 17:02:01 +0200	[thread overview]
Message-ID: <20230310150201.GK5342@pendragon.ideasonboard.com> (raw)
In-Reply-To: <20230310144711.1543225-1-robh@kernel.org>

Hi Rob,

Thank you for the patch.

On Fri, Mar 10, 2023 at 08:47:11AM -0600, Rob Herring wrote:
> It is preferred to use typed property access functions (i.e.
> of_property_read_<type> functions) rather than low-level
> of_get_property/of_find_property functions for reading properties. As
> part of this, convert of_get_property/of_find_property calls to the
> recently added of_property_present() helper when we just want to test
> for presence of a property and nothing more.
> 
> Signed-off-by: Rob Herring <robh@kernel.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c        | 2 +-
>  drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c | 2 +-
>  drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c | 2 +-
>  drivers/media/platform/xilinx/xilinx-vtc.c                  | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> index 969516a940ba..1a2b3214b6f8 100644
> --- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> +++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> @@ -1757,7 +1757,7 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
>  	jpeg->vdev->device_caps = V4L2_CAP_STREAMING |
>  				  V4L2_CAP_VIDEO_M2M_MPLANE;
>  
> -	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL))
> +	if (of_property_present(pdev->dev.of_node, "dma-ranges"))
>  		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
>  
>  	ret = video_register_device(jpeg->vdev, VFL_TYPE_VIDEO, -1);
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> index 174a6eec2f54..d2db8ccaa4c0 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> @@ -321,7 +321,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL)) {
> +	if (of_property_present(pdev->dev.of_node, "dma-ranges")) {
>  		ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
>  		if (ret) {
>  			mtk_v4l2_err("Failed to set mask");
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> index 9095186d5495..199042034a3c 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> @@ -344,7 +344,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
>  		goto err_event_workq;
>  	}
>  
> -	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL))
> +	if (of_property_present(pdev->dev.of_node, "dma-ranges"))
>  		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
>  
>  	ret = video_register_device(vfd_enc, VFL_TYPE_VIDEO, -1);
> diff --git a/drivers/media/platform/xilinx/xilinx-vtc.c b/drivers/media/platform/xilinx/xilinx-vtc.c
> index 0ae0208d7529..cb4b421a348d 100644
> --- a/drivers/media/platform/xilinx/xilinx-vtc.c
> +++ b/drivers/media/platform/xilinx/xilinx-vtc.c
> @@ -254,7 +254,7 @@ struct xvtc_device *xvtc_of_get(struct device_node *np)
>  	struct xvtc_device *found = NULL;
>  	struct xvtc_device *xvtc;
>  
> -	if (!of_find_property(np, "xlnx,vtc", NULL))
> +	if (!of_property_present(np, "xlnx,vtc"))
>  		return NULL;
>  
>  	xvtc_node = of_parse_phandle(np, "xlnx,vtc", 0);

-- 
Regards,

Laurent Pinchart

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2023-03-10 15:03 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-10 14:47 [PATCH] media: Use of_property_present() for testing DT property presence Rob Herring
2023-03-10 15:02 ` Laurent Pinchart [this message]
2023-03-13  8:42 ` AngeloGioacchino Del Regno

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230310150201.GK5342@pendragon.ideasonboard.com \
    --to=laurent.pinchart@ideasonboard.com \
    --cc=andrew-ct.chen@mediatek.com \
    --cc=angelogioacchino.delregno@collabora.com \
    --cc=bin.liu@mediatek.com \
    --cc=devicetree@vger.kernel.org \
    --cc=hyun.kwon@xilinx.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=matthias.bgg@gmail.com \
    --cc=mchehab@kernel.org \
    --cc=michal.simek@xilinx.com \
    --cc=robh@kernel.org \
    --cc=tiffany.lin@mediatek.com \
    --cc=yunfei.dong@mediatek.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).