linux-kernel - Re: [PATCH v8 15/23] drm/mediatek: Manage component's clock with function pointers

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Date:   Tue, 17 Oct 2023 11:47:57 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Hsiao Chien Sung <shawn.sung@...iatek.com>,
        CK Hu <ck.hu@...iatek.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, Fei Shao <fshao@...omium.org>,
        Sean Paul <sean@...rly.run>,
        Johnson Wang <johnson.wang@...iatek.corp-partner.google.com>,
        "Nancy . Lin" <nancy.lin@...iatek.com>,
        Moudy Ho <moudy.ho@...iatek.com>,
        "Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
        Nathan Lu <nathan.lu@...iatek.com>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v8 15/23] drm/mediatek: Manage component's clock with
 function pointers

Il 16/10/23 12:40, Hsiao Chien Sung ha scritto:
> By registering component related functions to the pointers,
> we can easily manage them within a for-loop and simplify the
> logic of clock control significantly.
> 
> Reviewed-by: CK Hu <ck.hu@...iatek.com>
> Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>
> ---
>   .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c   | 111 +++++++-----------
>   1 file changed, 44 insertions(+), 67 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index 60e5dfe9ef0d..fffef2a4f919 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -53,6 +53,7 @@ struct ovl_adaptor_comp_match {
>   	enum mtk_ovl_adaptor_comp_type type;
>   	enum mtk_ddp_comp_id comp_id;
>   	int alias_id;
> +	const struct mtk_ddp_comp_funcs *funcs;
>   };
>   
>   struct mtk_disp_ovl_adaptor {
> @@ -67,20 +68,35 @@ static const char * const private_comp_stem[OVL_ADAPTOR_TYPE_NUM] = {
>   	[OVL_ADAPTOR_TYPE_MERGE]	= "merge",
>   };
>   
> +static const struct mtk_ddp_comp_funcs _ethdr = {

Sorry I just noticed that; can you please remove the leading "_" from all
of those?

_ethdr -> ethdr or mtk_ethdr
_merge -> merge or mtk_merge
_rdma  -> rdma  or mtk_rdma

Thanks,
Angelo