linux-kernel - Re: [PATCH] soc: mediatek: mmsys: Add mt8183 mmsys routing table

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Message-ID: <d816e7c7-5bf8-4b4c-f807-1337db4a4241@gmail.com>
Date:   Tue, 30 Mar 2021 11:19:27 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Hsin-Yi Wang <hsinyi@...omium.org>, linux-kernel@...r.kernel.org
Cc:     drinkcat@...omium.org, weiyi.lu@...iatek.com, ck.hu@...iatek.com,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, enric.balletbo@...labora.com
Subject: Re: [PATCH] soc: mediatek: mmsys: Add mt8183 mmsys routing table

Hi Hsin-Yi,

Patch looks good but please use the new, just merged format, see [1]
Please put the defines and the routing table in a new header file mt8183-mmsys.h

Thanks
Matthias

[1]
https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/log/?h=v5.12-next/soc

On 23/03/2021 06:51, Hsin-Yi Wang wrote:
> mt8183 has different routing registers than mt8173.
> 
> Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
> ---
> This patch is based on series ("soc: mediatek: Prepare MMSYS for DDP routing using tables")[1]
> and tested with mt8183 krand and mt8183 juniper device.
> The register value is referenced from [2].
> 
> [1] https://patchwork.kernel.org/project/linux-mediatek/cover/20210317181711.795245-1-enric.balletbo@collabora.com/
> [2] https://patchwork.kernel.org/project/linux-mediatek/patch/1609815993-22744-6-git-send-email-yongqiang.niu@mediatek.com/
> ---
>  drivers/soc/mediatek/mtk-mmsys.c |  2 ++
>  drivers/soc/mediatek/mtk-mmsys.h | 47 ++++++++++++++++++++++++++++++++
>  2 files changed, 49 insertions(+)
> 
> diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
> index c46d8ab8b0c2..16bb55b0463a 100644
> --- a/drivers/soc/mediatek/mtk-mmsys.c
> +++ b/drivers/soc/mediatek/mtk-mmsys.c
> @@ -40,6 +40,8 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
>  
>  static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
>  	.clk_driver = "clk-mt8183-mm",
> +	.routes = mmsys_mt8183_routing_table,
> +	.num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table),
>  };
>  
>  struct mtk_mmsys {
> diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h
> index a760a34e6eca..c55baf5932b8 100644
> --- a/drivers/soc/mediatek/mtk-mmsys.h
> +++ b/drivers/soc/mediatek/mtk-mmsys.h
> @@ -66,6 +66,28 @@
>  #define DPI_SEL_IN_BLS				0x0
>  #define DSI_SEL_IN_RDMA				0x1
>  
> +#define MT8183_DISP_OVL0_MOUT_EN		0xf00
> +#define MT8183_DISP_OVL0_2L_MOUT_EN		0xf04
> +#define MT8183_DISP_OVL1_2L_MOUT_EN		0xf08
> +#define MT8183_DISP_DITHER0_MOUT_EN		0xf0c
> +#define MT8183_DISP_PATH0_SEL_IN		0xf24
> +#define MT8183_DISP_DSI0_SEL_IN			0xf2c
> +#define MT8183_DISP_DPI0_SEL_IN			0xf30
> +#define MT8183_DISP_RDMA0_SOUT_SEL_IN		0xf50
> +#define MT8183_DISP_RDMA1_SOUT_SEL_IN		0xf54
> +
> +#define MT8183_OVL0_MOUT_EN_OVL0_2L		BIT(4)
> +#define MT8183_OVL0_2L_MOUT_EN_DISP_PATH0	BIT(0)
> +#define MT8183_OVL1_2L_MOUT_EN_RDMA1		BIT(4)
> +#define MT8183_DITHER0_MOUT_IN_DSI0		BIT(0)
> +#define MT8183_DISP_PATH0_SEL_IN_OVL0_2L	0x1
> +#define MT8183_DSI0_SEL_IN_RDMA0		0x1
> +#define MT8183_DSI0_SEL_IN_RDMA1		0x3
> +#define MT8183_DPI0_SEL_IN_RDMA0		0x1
> +#define MT8183_DPI0_SEL_IN_RDMA1		0x2
> +#define MT8183_RDMA0_SOUT_COLOR0		0x1
> +#define MT8183_RDMA1_SOUT_DSI0			0x1
> +
>  struct mtk_mmsys_routes {
>  	u32 from_comp;
>  	u32 to_comp;
> @@ -212,4 +234,29 @@ static const struct mtk_mmsys_routes mmsys_default_routing_table[] = {
>  	}
>  };
>  
> +static const struct mtk_mmsys_routes mmsys_mt8183_routing_table[] = {
> +	{
> +		DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0,
> +		MT8183_DISP_OVL0_MOUT_EN, MT8183_OVL0_MOUT_EN_OVL0_2L
> +	}, {
> +		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
> +		MT8183_DISP_OVL0_2L_MOUT_EN, MT8183_OVL0_2L_MOUT_EN_DISP_PATH0
> +	}, {
> +		DDP_COMPONENT_OVL_2L1, DDP_COMPONENT_RDMA1,
> +		MT8183_DISP_OVL1_2L_MOUT_EN, MT8183_OVL1_2L_MOUT_EN_RDMA1
> +	}, {
> +		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
> +		MT8183_DISP_DITHER0_MOUT_EN, MT8183_DITHER0_MOUT_IN_DSI0
> +	}, {
> +		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
> +		MT8183_DISP_PATH0_SEL_IN, MT8183_DISP_PATH0_SEL_IN_OVL0_2L
> +	}, {
> +		DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0,
> +		MT8183_DISP_DPI0_SEL_IN, MT8183_DPI0_SEL_IN_RDMA1
> +	}, {
> +		DDP_COMPONENT_RDMA0, DDP_COMPONENT_COLOR0,
> +		MT8183_DISP_RDMA0_SOUT_SEL_IN, MT8183_RDMA0_SOUT_COLOR0
> +	}
> +};
> +
>  #endif /* __SOC_MEDIATEK_MTK_MMSYS_H */
>