Re: [RESEND PATCH v6 18/20] drm/mediatek: Add Padding to OVL adaptor

[CK Hu (胡俊光)]

Hi, Hsiao-chien:

On Mon, 2023-09-11 at 15:42 +0800, Hsiao Chien Sung wrote:
> Add MT8188 Padding to OVL adaptor to probe the driver.

Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx>

> 
> Signed-off-by: Hsiao Chien Sung <shawn.sung@xxxxxxxxxxxx>
> ---
>  .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c   | 33
> +++++++++++++++++++
>  1 file changed, 33 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index 84133303a6ec..217c39af27bd 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -30,6 +30,7 @@ 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,
>  };
> 
> @@ -47,6 +48,14 @@ 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
>  };
> 
> @@ -67,6 +76,7 @@ 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 = {
> @@ -79,6 +89,11 @@ 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,
> +};
> +
>  static const struct mtk_ddp_comp_funcs _rdma = {
>  	.clk_enable = mtk_mdp_rdma_clk_enable,
>  	.clk_disable = mtk_mdp_rdma_clk_disable,
> @@ -98,6 +113,14 @@ 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,
> @@ -109,6 +132,8 @@ void mtk_ovl_adaptor_layer_config(struct device
> *dev, unsigned int idx,
>  	struct mtk_mdp_rdma_cfg rdma_config = {0};
>  	struct device *rdma_l;
>  	struct device *rdma_r;
> +	struct device *padding_l;
> +	struct device *padding_r;
>  	struct device *merge;
>  	struct device *ethdr;
>  	const struct drm_format_info *fmt_info =
> drm_format_info(pending->format);
> @@ -125,6 +150,8 @@ void mtk_ovl_adaptor_layer_config(struct device
> *dev, unsigned int idx,
> 
>  	rdma_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 +
> 2 * idx];
>  	rdma_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 +
> 2 * idx + 1];
> +	padding_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_PADDING0
> + 2 * idx];
> +	padding_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_PADDING0
> + 2 * idx + 1];
>  	merge = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MERGE0 +
> idx];
>  	ethdr = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0];
> 
> @@ -160,10 +187,15 @@ void mtk_ovl_adaptor_layer_config(struct device
> *dev, unsigned int idx,
>  	rdma_config.color_encoding = pending->color_encoding;
>  	mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt);
> 
> +	if (padding_l)
> +		mtk_padding_config(padding_l, cmdq_pkt);
> +
>  	if (use_dual_pipe) {
>  		rdma_config.x_left = l_w;
>  		rdma_config.width = r_w;
>  		mtk_mdp_rdma_config(rdma_r, &rdma_config, cmdq_pkt);
> +		if (padding_r)
> +			mtk_padding_config(padding_r, cmdq_pkt);
>  	}
> 
>  	mtk_merge_start_cmdq(merge, cmdq_pkt);
> @@ -354,6 +386,7 @@ 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 },
> --
> 2.18.0
>