linux-kernel - Re: [PATCH v7 02/10] media: mediatek: decoder: Add a new platform data member

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <529be113e01c323d3fe372178b879c224d0cb9a6.camel@mediatek.com>
Date: Wed, 28 Jan 2026 07:18:05 +0000
From: Kyrie Wu (吴晗) <Kyrie.Wu@...iatek.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	George Sun (孙林) <George.Sun@...iatek.com>,
	Tiffany Lin (林慧珊) <tiffany.lin@...iatek.com>,
	"nhebert@...omium.org" <nhebert@...omium.org>, "linux-media@...r.kernel.org"
	<linux-media@...r.kernel.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, "mchehab@...nel.org" <mchehab@...nel.org>,
	"hverkuil@...all.nl" <hverkuil@...all.nl>, "nicolas.dufresne@...labora.com"
	<nicolas.dufresne@...labora.com>, Kyrie Wu (吴晗)
	<Kyrie.Wu@...iatek.com>, Yunfei Dong (董云飞)
	<Yunfei.Dong@...iatek.com>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
	Irui Wang (王瑞) <Irui.Wang@...iatek.com>,
	"robh@...nel.org" <robh@...nel.org>, "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "matthias.bgg@...il.com"
	<matthias.bgg@...il.com>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
	"arnd@...db.de" <arnd@...db.de>,
	Andrew-CT Chen (陳智迪)
	<Andrew-CT.Chen@...iatek.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: "andrzejtp2010@...il.com" <andrzejtp2010@...il.com>,
	"neil.armstrong@...aro.org" <neil.armstrong@...aro.org>,
	Yilong Zhou (周易龙) <Yilong.Zhou@...iatek.com>
Subject: Re: [PATCH v7 02/10] media: mediatek: decoder: Add a new platform
 data member

On Tue, 2026-01-27 at 13:07 +0100, AngeloGioacchino Del Regno wrote:
> Il 27/01/26 03:42, Kyrie Wu ha scritto:
> > Add a new platform data member to indicate each decoder IC
> > to avoid the chip name definition keep growing.
> > 
> > Signed-off-by: Kyrie Wu <kyrie.wu@...iatek.com>
> > ---
> >   .../mediatek/vcodec/decoder/mtk_vcodec_dec.h  |  5 +
> >   .../vcodec/decoder/mtk_vcodec_dec_drv.c       | 35 ++-----
> >   .../vcodec/decoder/mtk_vcodec_dec_drv.h       | 15 +--
> >   .../vcodec/decoder/mtk_vcodec_dec_hw.c        |  2 +-
> >   .../vcodec/decoder/mtk_vcodec_dec_stateful.c  |  1 +
> >   .../vcodec/decoder/mtk_vcodec_dec_stateless.c | 92
> > ++++++++++++++-----
> >   6 files changed, 86 insertions(+), 64 deletions(-)
> > 
> > diff --git
> > a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.h
> > b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.h
> > index 1af075fc0194..80cb46f1cded 100644
> > ---
> > a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.h
> > +++
> > b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.h
> > @@ -69,6 +69,11 @@ extern const struct v4l2_m2m_ops
> > mtk_vdec_m2m_ops;
> >   extern const struct media_device_ops mtk_vcodec_media_ops;
> >   extern const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata;
> >   extern const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata;
> > +extern const struct mtk_vcodec_dec_pdata mtk_vdec_8186_pdata;
> > +extern const struct mtk_vcodec_dec_pdata mtk_vdec_8188_pdata;
> > +extern const struct mtk_vcodec_dec_pdata mtk_vdec_8192_pdata;
> > +extern const struct mtk_vcodec_dec_pdata mtk_vdec_8195_pdata;
> > +extern const struct mtk_vcodec_dec_pdata mtk_vdec_8196_pdata;
> >   extern const struct mtk_vcodec_dec_pdata mtk_lat_sig_core_pdata;
> >   extern const struct mtk_vcodec_dec_pdata
> > mtk_vdec_single_core_pdata;
> >   
> > diff --git
> > a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv
> > .c
> > b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv
> > .c
> > index 7ed40936a0e8..c7af48f684c5 100644
> > ---
> > a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv
> > .c
> > +++
> > b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv
> > .c
> > @@ -333,24 +333,7 @@ static const struct v4l2_file_operations
> > mtk_vcodec_fops = {
> >   
> >   static void mtk_vcodec_dec_get_chip_name(struct
> > mtk_vcodec_dec_dev *vdec_dev)
> >   {
> > -	struct device *dev = &vdec_dev->plat_dev->dev;
> > -
> > -	if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-
> > vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8173;
> > -	else if (of_device_is_compatible(dev->of_node,
> > "mediatek,mt8183-vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8183;
> > -	else if (of_device_is_compatible(dev->of_node,
> > "mediatek,mt8192-vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8192;
> > -	else if (of_device_is_compatible(dev->of_node,
> > "mediatek,mt8195-vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8195;
> > -	else if (of_device_is_compatible(dev->of_node,
> > "mediatek,mt8186-vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8186;
> > -	else if (of_device_is_compatible(dev->of_node,
> > "mediatek,mt8188-vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8188;
> > -	else if (of_device_is_compatible(dev->of_node,
> > "mediatek,mt8196-vcodec-dec"))
> > -		vdec_dev->chip_name = MTK_VDEC_MT8196;
> > -	else
> > -		vdec_dev->chip_name = MTK_VDEC_INVAL;
> > +	vdec_dev->chip_name = vdec_dev->vdec_pdata->chip_name;
> 
> While at it, can you please rename `chip_name` to `chip_model`?
> 
> "name" makes me (if it's just me, nevermind) always think about a
> string, not about
> an (unsigned) integer number.
> 
> In any case, you can already get my
> 
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> 
> ...because that was just a nitpick, anyway.
> 
> Cheers,
> Angelo
Dear Angelo,

Thanks for above suggestion, I will change it.

Regards,
Kyrie.