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Message-ID: <7f1da971c0b6256326950a4e3b28ed25f93813bb.camel@mediatek.com>
Date:   Tue, 17 Oct 2023 09:39:44 +0000
From:   CK Hu (胡俊光) <ck.hu@...iatek.com>
To:     Shawn Sung (宋孝謙) 
        <Shawn.Sung@...iatek.com>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>
CC:     Yongqiang Niu (牛永强) 
        <yongqiang.niu@...iatek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        Moudy Ho (何宗原) <Moudy.Ho@...iatek.com>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Nathan Lu (呂東霖) <Nathan.Lu@...iatek.com>,
        "airlied@...il.com" <airlied@...il.com>,
        "sean@...rly.run" <sean@...rly.run>,
        "hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "fshao@...omium.org" <fshao@...omium.org>,
        "johnson.wang@...iatek.corp-partner.google.com" 
        <johnson.wang@...iatek.corp-partner.google.com>
Subject: Re: [PATCH v8 18/23] drm/mediatek: Add Padding to OVL adaptor

Hi, Hsiao-chien:

On Mon, 2023-10-16 at 18:40 +0800, Hsiao Chien Sung wrote:
> Add MT8188 Padding to OVL adaptor to probe the driver.

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   | 26
> +++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index 354ba6186166..b80425360e76 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -29,6 +29,7 @@ enum mtk_ovl_adaptor_comp_type {
>  	OVL_ADAPTOR_TYPE_ETHDR,
>  	OVL_ADAPTOR_TYPE_MDP_RDMA,
>  	OVL_ADAPTOR_TYPE_MERGE,
> +	OVL_ADAPTOR_TYPE_PADDING,
>  	OVL_ADAPTOR_TYPE_NUM,
>  };
>  
> @@ -46,6 +47,14 @@ enum mtk_ovl_adaptor_comp_id {
>  	OVL_ADAPTOR_MERGE1,
>  	OVL_ADAPTOR_MERGE2,
>  	OVL_ADAPTOR_MERGE3,
> +	OVL_ADAPTOR_PADDING0,
> +	OVL_ADAPTOR_PADDING1,
> +	OVL_ADAPTOR_PADDING2,
> +	OVL_ADAPTOR_PADDING3,
> +	OVL_ADAPTOR_PADDING4,
> +	OVL_ADAPTOR_PADDING5,
> +	OVL_ADAPTOR_PADDING6,
> +	OVL_ADAPTOR_PADDING7,
>  	OVL_ADAPTOR_ID_MAX
>  };
>  
> @@ -66,6 +75,7 @@ static const char * const
> private_comp_stem[OVL_ADAPTOR_TYPE_NUM] = {
>  	[OVL_ADAPTOR_TYPE_ETHDR]	= "ethdr",
>  	[OVL_ADAPTOR_TYPE_MDP_RDMA]	= "vdo1-rdma",
>  	[OVL_ADAPTOR_TYPE_MERGE]	= "merge",
> +	[OVL_ADAPTOR_TYPE_PADDING]	= "padding",
>  };
>  
>  static const struct mtk_ddp_comp_funcs _ethdr = {
> @@ -80,6 +90,13 @@ static const struct mtk_ddp_comp_funcs _merge = {
>  	.clk_disable = mtk_merge_clk_disable,
>  };
>  
> +static const struct mtk_ddp_comp_funcs _padding = {
> +	.clk_enable = mtk_padding_clk_enable,
> +	.clk_disable = mtk_padding_clk_disable,
> +	.start = mtk_padding_start,
> +	.stop = mtk_padding_stop,
> +};
> +
>  static const struct mtk_ddp_comp_funcs _rdma = {
>  	.clk_enable = mtk_mdp_rdma_clk_enable,
>  	.clk_disable = mtk_mdp_rdma_clk_disable,
> @@ -99,6 +116,14 @@ static const struct ovl_adaptor_comp_match
> comp_matches[OVL_ADAPTOR_ID_MAX] = {
>  	[OVL_ADAPTOR_MERGE1] = { OVL_ADAPTOR_TYPE_MERGE,
> DDP_COMPONENT_MERGE2, 2, &_merge },
>  	[OVL_ADAPTOR_MERGE2] = { OVL_ADAPTOR_TYPE_MERGE,
> DDP_COMPONENT_MERGE3, 3, &_merge },
>  	[OVL_ADAPTOR_MERGE3] = { OVL_ADAPTOR_TYPE_MERGE,
> DDP_COMPONENT_MERGE4, 4, &_merge },
> +	[OVL_ADAPTOR_PADDING0] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING0, 0, &_padding },
> +	[OVL_ADAPTOR_PADDING1] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING1, 1, &_padding },
> +	[OVL_ADAPTOR_PADDING2] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING2, 2, &_padding },
> +	[OVL_ADAPTOR_PADDING3] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING3, 3, &_padding },
> +	[OVL_ADAPTOR_PADDING4] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING4, 4, &_padding },
> +	[OVL_ADAPTOR_PADDING5] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING5, 5, &_padding },
> +	[OVL_ADAPTOR_PADDING6] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING6, 6, &_padding },
> +	[OVL_ADAPTOR_PADDING7] = { OVL_ADAPTOR_TYPE_PADDING,
> DDP_COMPONENT_PADDING7, 7, &_padding },
>  };
>  
>  void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int
> idx,
> @@ -369,6 +394,7 @@ static int ovl_adaptor_comp_get_id(struct device
> *dev, struct device_node *node,
>  }
>  
>  static const struct of_device_id mtk_ovl_adaptor_comp_dt_ids[] = {
> +	{ .compatible = "mediatek,mt8188-padding", .data = (void
> *)OVL_ADAPTOR_TYPE_PADDING },
>  	{ .compatible = "mediatek,mt8195-disp-ethdr", .data = (void
> *)OVL_ADAPTOR_TYPE_ETHDR },
>  	{ .compatible = "mediatek,mt8195-disp-merge", .data = (void
> *)OVL_ADAPTOR_TYPE_MERGE },
>  	{ .compatible = "mediatek,mt8195-vdo1-rdma", .data = (void
> *)OVL_ADAPTOR_TYPE_MDP_RDMA },

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